MAX6190–MAX6195/MAX6198 Precision, Micropower, Low-Dropout Voltage References General Description Features The MAX6190–MAX6195/MAX6198 precision, micro- ♦♦ ±2mV (max) Initial Accuracy power, low-dropout voltage references offer high initial accuracy and very low temperature coefficient through ♦♦ 5ppm/°C (max) Temperature Coefficient a proprietary curvature-correction circuit and laser- ♦♦ 35µA (max) Supply Current trimmed precision thin-film resistors. ♦♦ 100mV Dropout at 500µA Load Current These series-mode bandgap references draw a maxi- mum of only 35µA quiescent supply current, making ♦♦ 0.12µV/µA Load Regulation them ideal for battery-powered instruments. They offer ♦♦ 8µV/V Line Regulation a supply current that is virtually immune to input volt- age variations. Load-regulation specifications are Applications guaranteed for source and sink currents up to 500µA. These devices are internally compensated, making Hand-Held Instruments them ideal for applications that require fast settling, Analog-to-Digital and Digital-to-Analog Converters and are stable with capacitive loads up to 2.2nF. Industrial Process Control Precision 3V/5V Systems Selector Guide Hard-Disk Drives Ordering Information OUTPUT INITIAL TEMPERATURE PART VOLTAGE ACCURACY COEFFICIENT (V) (mV) (ppm/°C) PART TEMP RANGE PIN-PACKAGE MAX6190AESA+ -40°C to +85°C 8 SO MAX6190A 1.250 ±2 <5 MAX6190BESA+ -40°C to +85°C 8 SO MAX6190B 1.250 ±4 <10 MAX6190CESA+ -40°C to +85°C 8 SO MAX6190C 1.250 ±6 <25 MAX6191AESA+ -40°C to +85°C 8 SO MAX6191A 2.048 ±2 <5 MAX6191BESA+ -40°C to +85°C 8 SO MAX6191B 2.048 ±5 <10 MAX6191CESA+ -40°C to +85°C 8 SO MAX6191C 2.048 ±10 <25 MAX6192AESA+ -40°C to +85°C 8 SO MAX6192A 2.500 ±2 <5 MAX6192BESA+ -40°C to +85°C 8 SO MAX6192B 2.500 ±5 <10 MAX6192CESA+ -40°C to +85°C 8 SO MAX6192C 2.500 ±10 <25 Ordering Information continued at end of data sheet. MAX6193A 3.000 ±2 <5 +Denotes a lead(Pb)-free /RoHS-compliant package. MAX6193B 3.000 ±5 <10 MAX6193C 3.000 ±10 <25 Pin Configuration MAX6198A 4.096 ±2 <5 MAX6198B 4.096 ±5 <10 MAX6198C 4.096 ±10 <25 TOP VIEW MAX6194A 4.500 ±2 <5 + MAX6194B 4.500 ±5 <10 N.C. 1 8 N.C. MAX6194C 4.500 ±10 <25 IN 2 MAX6190– 7 N.C. MAX6195A 5.000 ±2 <5 MAX6195 MAX6195B 5.000 ±5 <10 N.C. 3 MAX6198 6 OUT MAX6195C 5.000 ±10 <25 GND 4 5 N.C. Typical Operating Circuit appears at end of data sheet. SO For pricing, delivery, and ordering information,please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com. 19-1408; Rev 3; 4/10

MAX6190–MAX6195/MAX6198 Precision, Micropower, Low-Dropout Voltage References ABSOLUTE MAXIMUM RATINGS Voltages Referenced to GND Operating Temperature Range...........................-40°C to +85°C IN......................................................................-0.3V to +13.5V Junction Temperature......................................................+150°C OUT..........................................................-0.3V to (VIN+ 0.3V) Storage Temperature Range.............................-65°C to +150°C Output Short Circuit to GND or IN (VIN< 6V)............Continuous Lead Temperature (soldering, 10s).................................+300°C Output Short Circuit to GND or IN (VIN≥6V).........................60s Soldering Temperature (reflow).......................................+260°C Continuous Power Dissipation (TA= +70°C) 8-Pin SO (derate 5.88mW/°C above +70°C)................471mW Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS—MAX6190 (VIN= 5V, IOUT= 0nA, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS OOUUTTPPUUTT MAX6190A 1.248 1.250 1.252 Output Voltage VOUT TA= +25°C MAX6190B 1.246 1.250 1.254 V MAX6190C 1.244 1.250 1.256 MAX6190A 2 5 Output-Voltage Temperature Coefficient (Note 1) TCVOUT MAX6190B 4 10 ppm/°C MAX6190C 8 25 ΔVOUT/ Line Regulation ΔVIN 2.5V ≤VIN≤12.6V 8 80 µV/V ΔVOUT/ Sourcing: 0 ≤IOUT≤500µA 0.12 0.5 Load Regulation µV/µA ΔIOUT Sinking: -500µA ≤IOUT≤0 0.15 0.6 Short to GND 4 Short-Circuit Current ISC mA Short to IN 4 Temperature Hysteresis ΔVOUT/ 75 ppm (Note 2) cycle Long-Term Stability ΔVOUT/ 1000hrs at +25°C 50 ppm/ time 1000hrs DDYYNNAAMMIICC 0.1Hz to 10Hz 25 µVP-P Noise Voltage eOUT 10Hz to 10kHz 65 µVRMS Ripple Rejection VOUT/VIN VIN= 5V ±100mV, f = 120Hz 86 dB Turn-On Settling Time tR To 0.1%, COUT= 50pF 30 µs Capacitive-Load Stability Range COUT (Note 3) 0 2.2 nF IINNPPUUTT Supply Voltage Range VIN Guaranteed by line-regulation test 2.5 12.6 V Quiescent Supply Current IIN 27 35 µA Change in Supply Current IIN/VIN 2.5V ≤VIN≤12.6V 0.8 2 µA/V 2 Maxim Integrated

MAX6190–MAX6195/MAX6198 Precision, Micropower, Low-Dropout Voltage References ELECTRICAL CHARACTERISTICS—MAX6191 (VIN= 5V, IOUT= 0nA, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS OOUUTTPPUUTT MAX6191A 2.046 2.048 2.050 Output Voltage VOUT TA= +25°C MAX6191B 2.043 2.048 2.053 V MAX6191C 2.038 2.048 2.058 MAX6191A 2 5 Output-Voltage Temperature Coefficient (Note 1) TCVOUT MAX6191B 4 10 ppm/°C MAX6191C 8 25 ΔVOUT/ Line Regulation ΔVIN 2.5V ≤VIN≤12.6V 10 100 µV/V ΔVOUT/ Sourcing: 0 ≤IOUT≤500µA 0.12 0.55 Load Regulation µV/µA ΔIOUT Sinking: -500µA ≤IOUT≤0 0.18 0.70 Short to GND 4 Short-Circuit Current ISC mA Short to IN 4 Temperature Hysteresis ΔVOUT/ 75 ppm (Note 2) cycle Long-Term Stability ΔVOUT/ 1000hrs at +25°C 50 ppm/ time 1000hrs DDYYNNAAMMIICC 0.1Hz to 10Hz 40 µVP-P Noise Voltage eOUT 10Hz to 10kHz 105 µVRMS Ripple Rejection VOUT/VIN VIN= 5V ±100mV, f = 120Hz 84 dB Turn-On Settling Time tR To 0.1%, COUT= 50pF 30 µs Capacitive-Load Stability Range COUT (Note 3) 0 2.2 nF IINNPPUUTT Supply Voltage Range VIN Guaranteed by line-regulation test 2.5 12.6 V Quiescent Supply Current IIN 27 35 µA Change in Supply Current IIN/VIN 2.5V ≤VIN≤12.6V 0.8 2 µA/V Maxim Integrated 3

MAX6190–MAX6195/MAX6198 Precision, Micropower, Low-Dropout Voltage References ELECTRICAL CHARACTERISTICS—MAX6192 (VIN= 5V, IOUT= 0nA, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS OUTPUT MAX6192A 2.498 2.500 2.502 Output Voltage VOUT TA= +25°C MAX6192B 2.495 2.500 2.505 V MAX6192C 2.490 2.500 2.510 MAX6192A 2 5 Output-Voltage Temperature Coefficient (Note 1) TCVOUT MAX6192B 4 10 ppm/°C MAX6192C 8 25 ΔVOUT/ Line Regulation ΔVIN (VOUT+ 0.2V) ≤VIN≤12.6V 15 140 µV/V ΔVOUT/ Sourcing: 0 ≤IOUT≤500µA 0.14 0.60 Load Regulation µV/µA ΔIOUT Sinking: -500µA ≤IOUT≤0 0.18 0.80 Dropout Voltage (Note 4) VIN - VOUT ΔVOUT≤0.2%, IOUT= 500µA 100 200 mV Short to GND 4 Short-Circuit Current ISC mA Short to IN 4 Temperature Hysteresis ΔVOUT/ 75 ppm (Note 2) cycle Long-Term Stability ΔVOUT/ 1000hrs at +25°C 50 ppm/ time 1000hrs DDYYNNAAMMIICC 0.1Hz to 10Hz 60 µVP-P Noise Voltage eOUT 10Hz to 10kHz 125 µVRMS Ripple Rejection VOUT/VIN VIN= 5V ±100mV, f = 120Hz 82 dB Turn-On Settling Time tR To 0.1%, COUT= 50pF 85 µs Capacitive-Load Stability Range COUT (Note 3) 0 2.2 nF IINNPPUUTT Supply Voltage Range VIN Guaranteed by line-regulation test VOUT + 0.2 12.6 V Quiescent Supply Current IIN 27 35 µA Change in Supply Current IIN/VIN (VOUT+ 0.2V) ≤VIN≤12.6V 0.8 2 µA/V 4 Maxim Integrated

MAX6190–MAX6195/MAX6198 Precision, Micropower, Low-Dropout Voltage References ELECTRICAL CHARACTERISTICS—MAX6193 (VIN= 5V, IOUT= 0nA, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS OOUUTTPPUUTT MAX6193A 2.998 3.000 3.002 Output Voltage VOUT TA= +25°C MAX6193B 2.995 3.000 3.005 V MAX6193C 2.990 3.000 3.010 MAX6193A 2 5 Output-Voltage Temperature Coefficient (Note 1) TCVOUT MAX6193B 4 10 ppm/°C MAX6193C 8 25 Line Regulation ΔΔVVOIUNT/ 2.5V ≤VIN≤12.6V 20 150 µV/V Load Regulation ΔVOUT/ Sourcing: 0 ≤IOUT≤500µA 0.14 0.60 µV/µA ΔIOUT Sinking: -500µA ≤IOUT≤0 0.18 0.80 Dropout Voltage (Note 4) VIN - VOUT IOUT = 500µA 100 200 mV Short to GND 4 Short-Circuit Current ISC mA Short to IN 4 Temperature Hysteresis ΔVOUT/ 75 ppm (Note 2) cycle Long-Term Stability ΔVOUT/ 1000hrs at +25°C 50 ppm/ time 1000hrs DDYYNNAAMMIICC 0.1Hz to 10Hz 75 µVP-P Noise Voltage eOUT 10Hz to 10kHz 150 µVRMS Ripple Rejection VOUT/VIN VIN= 5V ±100mV, f = 120Hz 80 dB Turn-On Settling Time tR To 0.1%, COUT= 50pF 100 µs Capacitive-Load Stability Range COUT (Note 3) 0 2.2 nF IINNPPUUTT Supply Voltage Range VIN Guaranteed by line-regulation test VOUT + 0.2 12.6 V Quiescent Supply Current IIN 27 35 µA Change in Supply Current IIN/VIN (VOUT + 0.2V) ≤VIN≤12.6V 0.8 2 µA/V Maxim Integrated 5

MAX6190–MAX6195/MAX6198 Precision, Micropower, Low-Dropout Voltage References ELECTRICAL CHARACTERISTICS—MAX6194 (VIN= 5V, IOUT= 0nA, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS INPUT MAX6194A 4.498 4.500 4.502 Output Voltage VOUT TA= +25°C MAX6194B 4.495 4.500 4.505 V MAX6194C 4.490 4.500 4.510 MAX6194A 2 5 Output-Voltage Temperature Coefficient (Note 1) TCVOUT MAX6194B 4 10 ppm/°C MAX6194C 8 25 ΔVOUT/ Line Regulation ΔVIN (VOUT+ 0.2V) ≤VIN≤12.6V 25 160 µV/V ΔVOUT/ Sourcing: 0 ≤IOUT≤500µA 0.16 0.80 Load Regulation µV/µA ΔIOUT Sinking: -500µA ≤IOUT≤0 0.22 1.00 Dropout Voltage (Note 4) VIN - VOUT ΔVOUT≤0.2%, IOUT= 500µA 100 200 mV Short to GND 4 Short-Circuit Current ISC mA Short to IN 4 Temperature Hysteresis ΔVOUT/ 75 ppm (Note 2) cycle Long-Term Stability ΔVOUT/ 1000hrs at +25°C 50 ppm/ time 1000hrs DYNAMIC 0.1Hz to 10Hz 110 µVP-P Noise Voltage eOUT 10Hz to 10kHz 215 µVRMS Ripple Rejection VOUT/VIN VIN= 5V ±100mV, f = 120Hz 76 dB Turn-On Settling Time tR To 0.1%, COUT= 50pF 180 µs Capacitive-Load Stability Range COUT (Note 3) 0 2.2 nF OUTPUT Supply Voltage Range VIN Guaranteed by line-regulation test VOUT + 0.2 12.6 V Quiescent Supply Current IIN 27 35 µA Change in Supply Current IIN/VIN (VOUT+ 0.2V) ≤VIN≤12.6V 0.8 2 µA/V 6 Maxim Integrated

MAX6190–MAX6195/MAX6198 Precision, Micropower, Low-Dropout Voltage References ELECTRICAL CHARACTERISTICS—MAX6195 (VIN= 5.5V, IOUT= 0nA, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS OINUPTUPTUT MAX6195A 4.998 5.000 5.002 Output Voltage VOUT TA= +25°C MAX6195B 4.995 5.000 5.005 V MAX6195C 4.990 5.000 5.010 MAX6195A 2 5 Output-Voltage Temperature Coefficient (Note 1) TCVOUT MAX6195B 4 10 ppm/°C MAX6195C 8 25 ΔVOUT/ Line Regulation ΔVIN (VOUT+ 0.2V) ≤VIN≤12.6V 25 160 µV/V ΔVOUT/ Sourcing: 0 ≤IOUT≤500µA 0.17 0.85 Load Regulation µV/µA ΔIOUT Sinking: -500µA ≤IOUT≤0 0.24 1.10 Dropout Voltage (Note 4) VIN - VOUT ΔVOUT≤0.2%, IOUT= 500µA 100 200 mA Short to GND 4 Short-Circuit Current ISC mA Short to IN 4 Temperature Hysteresis ΔVOUT/ 75 ppm (Note 2) cycle Long-Term Stability ΔVOUT/ 1000hrs at +25°C 50 ppm/ time 1000hrs DDYYNNAAMMIICC 0.1Hz to 10Hz 120 µVP-P Noise Voltage eOUT 10Hz to 10kHz 240 µVRMS Ripple Rejection VOUT/VIN VIN= 5.5V ±100mV, f = 120Hz 72 dB Turn-On Settling Time tR To 0.1%, COUT= 50pF 220 µs Capacitive-Load Stability Range COUT (Note 3) 0 2.2 nF OINUPTUPTUT Supply Voltage Range VIN Guaranteed by line-regulation test VOUT + 0.2 12.6 V Quiescent Supply Current IIN 27 35 µA Change in Supply Current IIN/VIN (VOUT+ 0.2V) ≤VIN≤12.6V 0.8 2 µA/V Maxim Integrated 7

MAX6190–MAX6195/MAX6198 Precision, Micropower, Low-Dropout Voltage References ELECTRICAL CHARACTERISTICS—MAX6198 (VIN= 5V, IOUT= 0nA, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS OOUUTTPPUUTT MAX6198A 4.094 4.096 4.098 Output Voltage VOUT TA= +25°C MAX6198B 4.091 4.096 4.101 V MAX6198C 4.086 4.096 4.106 MAX6198A 2 5 Output-Voltage Temperature Coefficient (Note 1) TCVOUT MAX6198B 4 10 ppm/°C MAX6198C 8 25 ΔVOUT/ Line Regulation ΔVIN (VOUT+ 0.2V) ≤VIN≤12.6V 25 160 µV/V ΔVOUT/ Sourcing: 0 ≤IOUT≤500µA 0.15 0.70 Load Regulation µV/µA ΔIOUT Sinking: -500µA ≤IOUT≤0 0.20 0.90 Dropout Voltage (Note 4) VIN - VOUT ΔVOUT≤0.2%, IOUT= 500µA 100 200 mV Short to GND 4 Short-Circuit Current ISC mA Short to IN 4 Temperature Hysteresis ΔVOUT/ 75 ppm (Note 2) cycle Long-Term Stability ΔVOUT/ 1000hrs at +25°C 50 ppm/ time 1000hrs DDDYYYNNNAAAMMMIIICCC 0.1Hz to 10Hz 100 µVP-P Noise Voltage eOUT 10Hz to 10kHz 200 µVRMS Ripple Rejection VOUT/VIN VIN= 5V ±100mV, f = 120Hz 77 dB Turn-On Settling Time tR To 0.1%, COUT= 50pF 160 µs Capacitive-Load Stability Range COUT (Note 3) 0 2.2 nF IIINNNPPPUUUTTT Supply Voltage Range VIN Guaranteed by line-regulation test VOUT + 0.2 12.6 V Quiescent Supply Current IIN 27 35 µA Change in Supply Current IIN/VIN (VOUT+ 0.2V) ≤VIN≤12.6V 0.8 2 µA/V Note 1: Temperature Coefficient is measured by the “box” method; i.e., the maximum ΔVOUTis divided by the maximum Δt. Note 2: Thermal Hysteresis is defined as the change in +25°C output voltage before and after cycling the device from TMINto TMAX. Note 3: Not production tested. Guaranteed by design. Note 4: Dropout voltage is the minimum input voltage at which VOUTchanges ≤0.2% from VOUTat VIN= 5.0V (VIN= 5.5V for MAX6195). 8 Maxim Integrated

MAX6190–MAX6195/MAX6198 Precision, Micropower, Low-Dropout Voltage References Typical Operating Characteristics (VIN= 5V for MAX6190/1/2/3/4/8, VIN= 5.5V for MAX6195; IOUT= 0nA; TA= +25°C; unless otherwise noted.) (Note 5) MAX6190 MAX6195 OUTPUT VOLTAGE OUTPUT VOLTAGE MAX6195 TEMPERATURE DRIFT TEMPERATURE DRIFT LONG-TERM DRIFT 11..22550068 MAX6190 toc01 555...000000334500 TTHYPRIECEAL PARTS MAX6190 toc02 555...000000321 TTHYPRIECEAL PARTS MAX6190 toc03 1.2504 V)5.000 5.0025 E ( V (V)OUT11..22550002 V (V)OUT55..00002105 PUT VOLTAG444...999999987 T 5.0010 U 1.2498 O4.996 5.0005 4.995 1.2496 THREE TYPICAL PARTS 5.0000 4.994 1.2494 4.9995 4.993 -40 -20 0 20 40 60 80 100 -40 -20 0 20 40 60 80 100 0 100 200 300 400500 600 700 800 9001000 TEMPERATURE DRIFT (°C) TEMPERATURE DRIFT (°C) TIME (HOURS) MAX6192/MAX6193 MAX6190 MAX6195 DROPOUT VOLTAGE LINE REGULATION LINE REGULATION vs. SOURCE CURRENT μV) 340000 MAX6190 toc04 μV) 680000 TA = +85°C MAX6190 toc05 00..78 MAX6190 toc06 PUT VOLTAGE CHANGE ( 210000 TA = -40T°AC = +85°C PUT VOLTAGE CHANGE ( 420000 TA =T -A4 =0 °+C25°C DROPOUT VOLTAGE (V) 0000....3456 TA =T +A8 =5 °-C40°C OUT 0 TA = +25°C OUT 0 0.2 0.1 TA = +25°C -100 -200 0 2 4 6 8 10 12 14 5 7 9 11 13 0 200 400 600 800 1000 INPUT VOLTAGE (V) INPUT VOLTAGE (V) SOURCE CURRENT (μA) MAX6194/MAX6195/MAX6198 MAX6190 MAX6195 DROPOUT VOLTAGE LOAD REGULATION LOAD REGULATION vs. SOURCE CURRENT NGE (mV) 00..24 MAX6190 toc07 NGE (mV) 00..24 MAX6012 toc08 E (V)000...223050 TA = +T8A5 =° C-40°C MAX6190 toc09 OLTAGE CHA 0 TA = -40°C OLTAGE CHA 0 TA = -40°C OUT VOLTAG0.15 UTPUT V -0.2 TA = +85°CTA = +25°C UTPUT V -0.2 TA = +25°C DROP0.10 TA = +25°C O O 0.05 TA = +85°C -0.4 -0.4 0 -500 -375 -250 -125 0 125 250 375 500 -500 -375 -250 -125 0 125 250 375 500 0 200 400 600 800 1000 LOAD CURRENT (μA) LOAD CURRENT (μA) SOURCE CURRENT (μA) Maxim Integrated 9

MAX6190–MAX6195/MAX6198 Precision, Micropower, Low-Dropout Voltage References Typical Operating Characteristics (continued) (VIN= 5V for MAX6190/1/2/3/4/8, VIN= 5.5V for MAX6195; IOUT= 0nA; TA= +25°C; unless otherwise noted.) (Note 5) MAX6190 MAX6195 POWER-SUPPLY REJECTION POWER-SUPPLY REJECTION SUPPLY CURRENT vs. FREQUENCY vs. FREQUENCY vs. INPUT VOLTAGE 100 MAX6190 toc10 100 VCC = 5.5V ±0.25V MAX16190 toc11 334680 VVFOAINLR (I MDEA IONCV)H ET RPO A SVRPITNE C(MIFAIEXD) MAX6190 toc12 10 10 μA) 34 PSR (mV/V) 1 PSR (mV/V) 1 LY CURRENT ( 233802 P P SU 26 0.1 0.1 24 22 0.01 0.01 20 100 1k 10k 100k 1M 10M 10 100 1k 10k 100k 1M 10M 2 4 6 8 10 12 14 FREQUENCY (Hz) FREQUENCY (Hz) INPUT VOLTAGE (V) MAX6190 MAX6195 OUTPUT IMPEDANCE OUTPUT IMPEDANCE SUPPLY CURRENT vs. FREQUENCY vs. FREQUENCY vs. TEMPERATURE 1k MAX6190 toc13 1k MAX6190 toc14 40 MAX6190 toc15 ΩMPEDANCE () 11000 ΩMPEDANCE () 11000 μCURRENT (A) 3305 VVIINN == 172.5.5VV OUTPUT I 1 OUTPUT I 1 SUPPLY 25 VIN = 5.5V VIN = 2.5V (MAX6190/MAX6191 ONLY) 0.1 0.1 20 0.01 0.1 1 10 100 1k 10k 100k 1M 0.01 0.1 1 10 100 1k 10k 100k 1M -40 -20 0 20 40 60 80 100 FREQUENCY (Hz) FREQUENCY (Hz) TEMPERATURE (°C) MAX6190 MAX6195 MAX6190 0.1Hz TO 10Hz OUTPUT NOISE 0.1Hz TO 10Hz OUTPUT NOISE TURN-ON TRANSIENT MAX6190 toc16 MAX6190 toc17 VIN MAX6190 toc18 1V/div 10μVV/OdUivT VOUT 20μV/div VOUT 1V/div 1s/div 1s/div 10μs/div 10 Maxim Integrated

MAX6190–MAX6195/MAX6198 Precision, Micropower, Low-Dropout Voltage References Typical Operating Characteristics (continued) (VIN= 5V for MAX6190/1/2/3/4/8, VIN= 5.5V for MAX6195; IOUT= 0nA; TA= +25°C; unless otherwise noted.) (Note 5) MAX6190 MAX6195 MAX6195 LOAD-TRANSIENT RESPONSE LOAD-TRANSIENT RESPONSE TURN-ON TRANSIENT MAX6190 toc19 IOUT +25μA 50μAI/OdUivT MAX6190 toc20 VIN MAX6190 toc21 40μA/div -25μA 2V/div VOUT VOUT VOUT 20mV/div 50mV/div 2V/div 10μs/div 20μs/div 10μs/div IOUT = ±25μA, AC-COUPLED VIN = 5.5V, IOUT = ±25μA, AC-COUPLED MAX6190 MAX6195 MAX6190 LOAD-TRANSIENT RESPONSE LOAD-TRANSIENT RESPONSE LINE-TRANSIENT RESPONSE MAX6190 toc22 1mAI/OdUivT +-550000μμAA 500μAI/OdUivT MAX6190 toc23 200mV/VdIiNv MAX6190 toc24 VOUT 200mV/div VOUT VOUT 0.2V/div 100mV/div 10μs/div 20μs/div 2.5μs/div IOUT = ±500μA, AC-COUPLED VIN = 5.5V, IOUT = ±500μA, AC-COUPLED VIN = 5V ±0.25V, AC-COUPLED MAX6195 LINE-TRANSIENT RESPONSE VIN MAX6190 toc25 200mV/div VOUT Note 5: Many of the Typical Operating Characteristicsof the MAX6190 family are 100mV/div extremely similar. The extremes of these characteristics are found in the MAX6190 (1.2V output) and the MAX6195 (5.0V output) devices. The Typical Operating Characteristicsof the remainder of the MAX6190 family typically lie between these two extremes and can be estimated based on their output 2μs/div voltage. VIN = 5.5V ±0.25V, AC-COUPLED Maxim Integrated 11

MAX6190–MAX6195/MAX6198 Precision, Micropower, Low-Dropout Voltage References Pin Description voltage. Additionally, shunt-mode references have to be biased at the maximum expected load current, even PIN NAME FUNCTION if the load current is not present all the time. In the 1, 3, 5, 7, No Connection. Not internally series-mode MAX6190 family, the load current is drawn N.C. 8 connected. from the input voltage only when required, so supply current is not wasted and efficiency is maximized at all 2 IN Supply Voltage Input input voltages. This improved efficiency can help 4 GND Ground reduce power dissipation and extend battery life. 6 OUT Reference Voltage Output When the supply voltage is below the minimum speci- fied input voltage (as during turn-on), the devices can Detailed Description draw up to 200µA beyond the nominal supply current. The input voltage source must be capable of providing The MAX6190–MAX6195/MAX6198 precision bandgap this current to ensure reliable turn-on. references use a proprietary curvature-correction circuit and laser-trimmed thin-film resistors, resulting in a low Output Voltage Hysteresis temperature coefficient of <5ppm/°C and initial accura- Output voltage hysteresis is the change in the output cy of better than 0.1%. These devices can sink and voltage at TA = +25°C before and after the device is source up to 500µA with <200mV of dropout voltage, cycled over its entire operating temperature range. making them attractive for use in low-voltage applica- Hysteresis is caused by differential package stress tions. appearing across the bandgap core transistors. The Applications Information typical temperature hysteresis value is 75ppm. Turn-On Time Output/Load Capacitance These devices typically turn on and settle to within Devices in this family do not require an output capaci- 0.1% of their final value in 30µs to 220µs, depending on tance for frequency stability. They are stable for capac- the device. The turn-on time can increase up to 1.5ms itive loads from 0 to 2.2nF. However, in applications with the device operating at the minimum dropout volt- where the load or the supply can experience step age and the maximum load. changes, an output capacitor will reduce the amount of overshoot (or undershoot) and assist the circuit’s tran- Positive and Negative Low-Power sient response. Many applications do not need an Voltage Reference external capacitor, and this family can offer a signifi- Figure 1 shows a typical method for developing a bipo- cant advantage in these applications when board lar reference. The circuit uses a MAX681 voltage dou- space is critical. bler/inverter charge-pump converter to power an ICL7652, thus creating a positive as well as a negative Supply Current reference voltage. The quiescent supply current of these series-mode ref- erences is a maximum of 35µA and is virtually indepen- dent of the supply voltage, with only a 0.8µA/V variation with supply voltage. Unlike series references, shunt- mode references operate with a series resistor connect- ed to the power supply. The quiescent current of a shunt-mode reference is thus a function of the input 12 Maxim Integrated

MAX6190–MAX6195/MAX6198 Precision, Micropower, Low-Dropout Voltage References VS 2VS VCC V+ MAX681 IN OUT +REF OUTPUT GND V- MAX6190– 1MΩ, 0.1% MAX6195 MAX6198 V+ ICL7652 OUTPUT GND V- 1MΩ, 0.1% 10nF -2VS -REF OUTPUT Figure 1. Positive and Negative References from Single 3V or 5V Supply Ordering Information (continued) Typical Operating Circuit PART TEMP RANGE PIN-PACKAGE MAX6193AESA+ -40°C to +85°C 8 SO +SUPPLY INPUT (SEE SELECTOR GUIDE ON FIRST PAGE) MAX6193BESA+ -40°C to +85°C 8 SO MAX6193CESA+ -40°C to +85°C 8 SO IN MAX6194AESA+ -40°C to +85°C 8 SO OUT REFERENCE OUT MAX6194BESA+ -40°C to +85°C 8 SO MAX6190– MAX6194CESA+ -40°C to +85°C 8 SO * MAX6195 MAX6198 MAX6195AESA+ -40°C to +85°C 8 SO MAX6195BESA+ -40°C to +85°C 8 SO MAX6195CESA+ -40°C to +85°C 8 SO GND 2.2nF MAX* MAX6198AESA+ -40°C to +85°C 8 SO MAX6198BESA+ -40°C to +85°C 8 SO MAX6198CESA+ -40°C to +85°C 8 SO MAX6198AESA/V+ -40°C to +85°C 8 SO *CAPACITORS ARE OPTIONAL +Denotes a lead(Pb)-free /RoHS-compliant package. /V denotes an automotive qualified part. Chip Information Package Information For the latest package outline information and land patterns (foot- PROCESS: BiCMOS prints), go to www.maximintegrated.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. PACKAGE PACKAGE OUTLINE LAND TYPE CODE NO. PATTERN NO. 8 SO S8+2 21-0041 90-0096 Maxim Integrated 13

MAX6190–MAX6195/MAX6198 Precision, Micropower, Low-Dropout Voltage References Revision History REVISION REVISION PAGES DESCRIPTION NUMBER DATE CHANGED Added automotive grade part, added lead-free information, and made style 3 4/10 1–14 changes Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. 14 ________________________________Maxim Integrated 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000 © 2010 Maxim Integrated Products, Inc. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: M axim Integrated: MAX6190AESA+T MAX6190BESA+ MAX6190BESA+T MAX6190CESA+T MAX6191AESA+T MAX6191BESA+T MAX6191CESA+ MAX6192AESA+T MAX6192BESA+T MAX6192CESA+T MAX6193AESA+ MAX6193AESA+T MAX6193BESA+T MAX6193CESA+T MAX6194AESA+ MAX6194AESA+T MAX6194BESA+ MAX6194BESA+T MAX6194CESA+ MAX6194CESA+T MAX6195AESA+T MAX6195BESA+T MAX6195CESA+ MAX6195CESA+T MAX6198AESA+T MAX6198BESA+T MAX6198CESA+ MAX6198CESA+T MAX6191CESA+T MAX6190AESA+ MAX6190CESA+ MAX6191AESA+ MAX6191BESA+ MAX6192AESA+ MAX6192BESA+ MAX6192CESA+ MAX6193BESA+ MAX6193CESA+ MAX6195AESA+ MAX6195BESA+ MAX6198AESA+ MAX6198BESA+ MAX6198AESA/V+ MAX6198AESA/V+T