Precision, Micropower, Low-Dropout Voltage References MAX6190-MAX

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Precision, Micropower, Low-Dropout Voltage References MAX6190-MAX

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19-1408; 10/01
Precision, Micropower, Low-Dropout Voltage References
MAX6190-MAX6195/MAX6198 precision, micropower, low-dropout voltage references offer high initial accuracy very temperature coefficient through proprietary curvature-correction circuit lasertrimmed precision thin-film resistors. These series-mode bandgap references draw maximum only 35µA quiescent supply current, making them ideal battery-powered instruments. They offer supply current that virtually immune input voltage variations. Load-regulation specifications guaranteed source sink currents 500µA. These devices internally compensated, making them ideal applications that require fast settling, stable with capacitive loads 2.2nF. ±2mV (max) Initial Accuracy 5ppm/°C (max) Temperature Coefficient 35µA (max) Supply Current 100mV Dropout 500µA Load Current 0.12µV/µA Load Regulation 8µV/V Line Regulation
Features
MAX6190-MAX6195/MAX6198
Applications
Hand-Held Instruments Analog-to-Digital Digital-to-Analog Converters Industrial Process Control Precision 3V/5V Systems Hard-Disk Drives
Selector Guide
PART MAX6190A MAX6190B MAX6190C MAX6191A MAX6191B MAX6191C MAX6192A MAX6192B MAX6192C MAX6193A MAX6193B MAX6193C MAX6198A MAX6198B MAX6198C MAX6194A MAX6194B MAX6194C MAX6195A MAX6195B MAX6195C OUTPUT VOLTAGE 1.250 1.250 1.250 2.048 2.048 2.048 2.500 2.500 2.500 3.000 3.000 3.000 4.096 4.096 4.096 4.500 4.500 4.500 5.000 5.000 5.000 INITIAL ACCURACY (mV) TEMPERATURE COEFFICIENT (ppm/°C)
Ordering Information
PART MAX6190AESA MAX6190BESA MAX6190CESA MAX6191AESA MAX6191BESA MAX6191CESA MAX6192AESA MAX6192BESA MAX6192CESA TEMP RANGE -40°C +85°C -40°C +85°C -40°C +85°C -40°C +85°C -40°C +85°C -40°C +85°C -40°C +85°C -40°C +85°C -40°C +85°C PIN-PACKAGE
Ordering Information continued data sheet.
Configuration
VIEW
N.C. N.C. N.C. N.C. N.C.
MAX6190- MAX6195 MAX6198
Typical Operating Circuit appears data sheet.
Maxim Integrated Products
pricing, delivery, ordering information, please contact Maxim/Dallas Direct! 1-888-629-4642, visit Maxim's website www.maxim-ic.com.
Precision, Micropower, Low-Dropout Voltage References MAX6190-MAX6195/MAX6198
ABSOLUTE MAXIMUM RATINGS
Voltages Referenced .-0.3V +13.5V .-0.3V (VIN 0.3V) Output Short Circuit (VIN .Continuous Output Short Circuit (VIN .60s Continuous Power Dissipation +70°C) 8-Pin (derate 5.88mW/°C above +70°C).471mW Operating Temperature Range .-40°C +85°C Storage Temperature Range .-65°C +150°C Lead Temperature (soldering, 10s) .+300°C
Stresses beyond those listed under "Absolute Maximum Ratings" cause permanent damage device. These stress ratings only, functional operation device these other conditions beyond those indicated operational sections specifications implied. Exposure absolute maximum rating conditions extended periods affect device reliability.
ELECTRICAL CHARACTERISTICS-MAX6190
(VIN IOUT TMIN TMAX, unless otherwise noted. Typical values +25°C.) PARAMETER OUTPUT MAX6190A Output Voltage VOUT +25°C MAX6190A Output-Voltage Temperature Coefficient (Note Line Regulation Load Regulation Short-Circuit Current Temperature Hysteresis (Note Long-Term Stability DYNAMIC Noise Voltage Ripple Rejection Turn-On Settling Time Capacitive-Load Stability Range INPUT Supply Voltage Range Quiescent Supply Current Change Supply Current IIN/VIN 2.5V 12.6V Guaranteed line-regulation test 12.6 µA/V eOUT VOUT/VIN COUT 0.1Hz 10Hz 10Hz 10kHz ±100mV, 120Hz 0.1%, COUT 50pF (Note µVP-P µVRMS TCVOUT VOUT/ VOUT/ IOUT VOUT/ cycle VOUT/ time 1000hrs +25°C MAX6190B MAX6190C 2.5V 12.6V Sourcing: IOUT 500µA Sinking: -500µA IOUT Short Short MAX6190B MAX6190C 1.248 1.246 1.244 1.250 1.250 1.250 0.12 0.15 1.252 1.254 1.256 µV/V µV/µA ppm/ 1000hrs ppm/°C SYMBOL CONDITIONS UNITS
Precision, Micropower, Low-Dropout Voltage References
ELECTRICAL CHARACTERISTICS-MAX6191
(VIN IOUT TMIN TMAX, unless otherwise noted. Typical values +25°C.) PARAMETER OUTPUT MAX6191A Output Voltage VOUT +25°C MAX6191A Output-Voltage Temperature Coefficient (Note Line Regulation Load Regulation Short-Circuit Current Temperature Hysteresis (Note Long-Term Stability DYNAMIC Noise Voltage Ripple Rejection Turn-On Settling Time Capacitive-Load Stability Range INPUT Supply Voltage Range Quiescent Supply Current Change Supply Current IIN/VIN 2.5V 12.6V Guaranteed line-regulation test 12.6 µA/V eOUT VOUT/VIN COUT 0.1Hz 10Hz 10Hz 10kHz ±100mV, 120Hz 0.1%, COUT 50pF (Note µVP-P µVRMS TCVOUT VOUT/ VOUT/ IOUT VOUT/ cycle VOUT/ time 1000hrs +25°C MAX6191B MAX6191C 2.5V 12.6V Sourcing: IOUT 500µA Sinking: -500µA IOUT Short Short MAX6191B MAX6191C 2.046 2.043 2.038 2.048 2.048 2.048 0.12 0.18 2.050 2.053 2.058 0.55 0.70 µV/V µV/µA ppm/ 1000hrs ppm/°C SYMBOL CONDITIONS UNITS
MAX6190-MAX6195/MAX6198
Precision, Micropower, Low-Dropout Voltage References MAX6190-MAX6195/MAX6198
ELECTRICAL CHARACTERISTICS-MAX6192
(VIN IOUT TMIN TMAX, unless otherwise noted. Typical values +25°C.) PARAMETER OUTPUT MAX6192A Output Voltage VOUT +25°C MAX6192A Output-Voltage Temperature Coefficient (Note Line Regulation Load Regulation Dropout Voltage (Note Short-Circuit Current Temperature Hysteresis (Note Long-Term Stability DYNAMIC Noise Voltage Ripple Rejection Turn-On Settling Time Capacitive-Load Stability Range INPUT Supply Voltage Range Quiescent Supply Current Change Supply Current IIN/VIN (VOUT 0.2V) 12.6V Guaranteed line-regulation test VOUT 12.6 µA/V eOUT VOUT/VIN COUT 0.1Hz 10Hz 10Hz 10kHz ±100mV, 120Hz 0.1%, COUT 50pF (Note µVP-P µVRMS TCVOUT VOUT/ VOUT/ IOUT MAX6192B MAX6192C (VOUT 0.2V) 12.6V Sourcing: IOUT 500µA Sinking: -500µA IOUT Short Short MAX6192B MAX6192C 2.498 2.495 2.490 2.500 2.500 2.500 0.14 0.18 1000hrs +25°C 2.502 2.505 2.510 0.60 0.80 µV/V µV/µA ppm/ 1000hrs ppm/°C SYMBOL CONDITIONS UNITS
VOUT VOUT 0.2%, IOUT 500µA VOUT/ cycle VOUT/ time
Precision, Micropower, Low-Dropout Voltage References
ELECTRICAL CHARACTERISTICS-MAX6193
(VIN IOUT TMIN TMAX, unless otherwise noted. Typical values +25°C.) PARAMETER OUTPUT MAX6193A Output Voltage VOUT +25°C MAX6193A Output-Voltage Temperature Coefficient (Note Line Regulation Load Regulation Dropout Voltage (Note Short-Circuit Current Temperature Hysteresis (Note Long-Term Stability DYNAMIC Noise Voltage Ripple Rejection Turn-On Settling Time Capacitive-Load Stability Range INPUT Supply Voltage Range Quiescent Supply Current Change Supply Current IIN/VIN (VOUT 0.2V) 12.6V Guaranteed line-regulation test VOUT 12.6 µA/V eOUT VOUT/VIN COUT 0.1Hz 10Hz 10Hz 10kHz ±100mV, 120Hz 0.1%, COUT 50pF (Note µVP-P µVRMS TCVOUT VOUT/ VOUT/ MAX6193B MAX6193C 2.5V 12.6V 2.5V 12.6V MAX6193B MAX6193C 2.998 2.995 2.990 3.000 3.000 3.000 0.14 0.18 1000hrs +25°C 3.002 3.005 3.010 0.60 0.80 µV/V µV/V ppm/ 1000hrs ppm/°C SYMBOL CONDITIONS UNITS
MAX6190-MAX6195/MAX6198
VOUT IOUT 500µA VOUT/ cycle VOUT/ time Short Short
Precision, Micropower, Low-Dropout Voltage References MAX6190-MAX6195/MAX6198
ELECTRICAL CHARACTERISTICS-MAX6194
(VIN IOUT TMIN TMAX, unless otherwise noted. Typical values +25°C.) PARAMETER INPUT MAX6194A Output Voltage VOUT +25°C MAX6194A Output-Voltage Temperature Coefficient (Note Line Regulation Load Regulation Dropout Voltage (Note Short-Circuit Current Temperature Hysteresis (Note Long-Term Stability DYNAMIC Noise Voltage Ripple Rejection Turn-On Settling Time Capacitive-Load Stability Range OUTPUT Supply Voltage Range Quiescent Supply Current Change Supply Current IIN/VIN (VOUT 0.2V) 12.6V Guaranteed line-regulation test VOUT 12.6 µA/V eOUT VOUT/VIN COUT 0.1Hz 10Hz 10Hz 10kHz ±100mV, 120Hz 0.1%, COUT 50pF (Note µVP-P µVRMS TCVOUT VOUT/ VOUT/ IOUT MAX6194B MAX6194C (VOUT 0.2V) 12.6V Sourcing: IOUT 500µA Sinking: -500µA IOUT Short Short MAX6194B MAX6194C 4.498 4.495 4.490 4.500 4.500 4.500 0.16 0.22 1000hrs +25°C 4.502 4.505 4.510 0.80 1.00 µV/V µV/µA ppm/ 1000hrs ppm/°C SYMBOL CONDITIONS UNITS
VOUT VOUT 0.2%, IOUT 500µA VOUT/ cycle VOUT/ time
Precision, Micropower, Low-Dropout Voltage References
ELECTRICAL CHARACTERISTICS-MAX6195
(VIN 5.5V, IOUT TMIN TMAX, unless otherwise noted. Typical values +25°C.) PARAMETER OUTPUT INPUT MAX6195A Output Voltage VOUT +25°C MAX6195A Output-Voltage Temperature Coefficient (Note Line Regulation Load Regulation Dropout Voltage (Note Short-Circuit Current Temperature Hysteresis (Note Long-Term Stability DYNAMIC Noise Voltage Ripple Rejection Turn-On Settling Time Capacitive-Load Stability Range OUTPUT INPUT Supply Voltage Range Quiescent Supply Current Change Supply Current IIN/VIN (VOUT 0.2V) 12.6V Guaranteed line-regulation test VOUT 12.6 µA/V eOUT VOUT/VIN COUT 0.1Hz 10Hz 10Hz 10kHz 5.5V ±100mV, 120Hz 0.1%, COUT 50pF (Note µVP-P µVRMS TCVOUT VOUT/ VOUT/ IOUT MAX6195B MAX6195C (VOUT 0.2V) 12.6V Sourcing: IOUT 500µA Sinking: -500µA IOUT Short Short MAX6195B MAX6195C 4.998 4.995 4.990 5.000 5.000 5.000 0.17 0.24 1000hrs +25°C 5.002 5.005 5.010 0.85 1.10 µV/V µV/µA ppm/ 1000hrs ppm/°C SYMBOL CONDITIONS UNITS
MAX6190-MAX6195/MAX6198
VOUT VOUT 0.2%, IOUT 500µA VOUT/ cycle VOUT/ time
Precision, Micropower, Low-Dropout Voltage References MAX6190-MAX6195/MAX6198
ELECTRICAL CHARACTERISTICS-MAX6198
(VIN IOUT TMIN TMAX, unless otherwise noted. Typical values +25°C.) PARAMETER OUTPUT MAX6198A Output Voltage VOUT +25°C MAX6198A Output-Voltage Temperature Coefficient (Note Line Regulation Load Regulation Dropout Voltage (Note Short-Circuit Current Temperature Hysteresis (Note Long-Term Stability DYNAMIC DYNAMIC Noise Voltage Ripple Rejection Turn-On Settling Time Capacitive-Load Stability Range INPUT INPUT Supply Voltage Range Quiescent Supply Current Change Supply Current Note Note Note Note IIN/VIN (VOUT 0.2V) 12.6V Guaranteed line-regulation test VOUT 12.6 µA/V eOUT VOUT/VIN COUT 0.1Hz 10Hz 10Hz 10kHz ±100mV, 120Hz 0.1%, COUT 50pF (Note µVP-P µVRMS TCVOUT VOUT/ VOUT/ IOUT MAX6198B MAX6198C (VOUT 0.2V) 12.6V Sourcing: IOUT 500µA Sinking: -500µA IOUT Short Short MAX6198B MAX6198C 4.094 4.091 4.086 4.096 4.096 4.096 0.15 0.20 1000hrs +25°C 4.098 4.101 4.106 0.70 0.90 µV/V µV/µA ppm/ 1000hrs ppm/°C SYMBOL CONDITIONS UNITS
VOUT VOUT 0.2%, IOUT 500µA VOUT/ cycle VOUT/ time
Temperature Coefficient measured "box" method; i.e., maximum VOUT divided maximum Thermal Hysteresis defined change +25°C output voltage before after cycling device from TMIN TMAX. production tested. Guaranteed design. Dropout voltage minimum input voltage which VOUT changes 0.2% from VOUT 5.0V (VIN 5.5V MAX6195).
Precision, Micropower, Low-Dropout Voltage References
Typical Operating Characteristics
(VIN MAX6190/1/2/3/4/8, 5.5V MAX6195; IOUT +25°C; unless otherwise noted.) (Note
MAX6190 OUTPUT VOLTAGE TEMPERATURE DRIFT
MAX6190 toc01
MAX6190-MAX6195/MAX6198
MAX6195 OUTPUT VOLTAGE TEMPERATURE DRIFT
MAX6190 toc02
MAX6195 LONG-TERM DRIFT
5.002 5.001 OUTPUT VOLTAGE 5.000 4.999 4.998 4.997 4.996 4.995 4.994 4.993 THREE TYPICAL PARTS
MAX6190 toc03
1.2508 1.2506 1.2504 VOUT
5.0040 5.0035 5.0030 5.0025 VOUT THREE TYPICAL PARTS
5.003
1.2502 1.2500 1.2498 1.2496 1.2494 THREE TYPICAL PARTS
5.0020 5.0015 5.0010 5.0005 5.0000 4.9995
1000 TIME (HOURS)
TEMPERATURE DRIFT (°C)
TEMPERATURE DRIFT (°C)
MAX6190 LINE REGULATION
MAX6190 toc04
MAX6195 LINE REGULATION
MAX6190 toc05
MAX6192/MAX6193 DROPOUT VOLTAGE SOURCE CURRENT
DROPOUT VOLTAGE -40°C +25°C 1000 +85°C
MAX6190 toc06
OUTPUT VOLTAGE CHANGE (µV)
OUTPUT VOLTAGE CHANGE (µV) +85°C -40°C
+85°C -40°C
+25°C
+25°C
-100 INPUT VOLTAGE
-200 INPUT VOLTAGE
SOURCE CURRENT (µA)
MAX6190 LOAD REGULATION
MAX6190 toc07
MAX6195 LOAD REGULATION
MAX6012 toc08
MAX6194/MAX6195/MAX6198 DROPOUT VOLTAGE SOURCE CURRENT
-40°C 0.25 DROPOUT VOLTAGE +85°C 0.20 0.15 0.10 0.05 +25°C
MAX6190 toc09
OUTPUT VOLTAGE CHANGE (mV)
OUTPUT VOLTAGE CHANGE (mV)
0.30
-40°C +85°C -0.2 +25°C
-40°C
-0.2
+25°C +85°C
-0.4 -500 -375 -250 -125
-0.4 -500 -375 -250 -125
1000 SOURCE CURRENT (µA)
LOAD CURRENT (µA)
LOAD CURRENT (µA)
Precision, Micropower, Low-Dropout Voltage References MAX6190-MAX6195/MAX6198
Typical Operating Characteristics (continued)
(VIN MAX6190/1/2/3/4/8, 5.5V MAX6195; IOUT +25°C; unless otherwise noted.) (Note
MAX6190 POWER-SUPPLY REJECTION FREQUENCY
MAX6190 toc10
MAX6195 POWER-SUPPLY REJECTION FREQUENCY
5.5V ±0.25V
MAX16190 toc11
SUPPLY CURRENT INPUT VOLTAGE
SUPPLY CURRENT (µA) VALID OVER SPECIFIED (MIN) (MAX) EACH PART
MAX6190 toc12
(mV/V) (mV/V)
0.01 100k FREQUENCY (Hz)
0.01 100k FREQUENCY (Hz)
INPUT VOLTAGE
MAX6190 OUTPUT IMPEDANCE FREQUENCY
MAX6190 toc13
MAX6195 OUTPUT IMPEDANCE FREQUENCY
MAX6190 toc14
SUPPLY CURRENT TEMPERATURE
MAX6190 toc15
OUTPUT IMPEDANCE
OUTPUT IMPEDANCE
SUPPLY CURRENT (µA)
12.5V 7.5V 5.5V 2.5V (MAX6190/MAX6191 ONLY)
0.01 100k FREQUENCY (Hz)
0.01 100k FREQUENCY (Hz)
TEMPERATURE (°C)
MAX6190 0.1Hz 10Hz OUTPUT NOISE
MAX6190 toc16
MAX6195 0.1Hz 10Hz OUTPUT NOISE
MAX6190 toc17
MAX6190 TURN-ON TRANSIENT
MAX6190 toc18
1V/div
VOUT 10µV/div
VOUT 20µV/div VOUT 1V/div
1s/div
1s/div
10µs/div
Precision, Micropower, Low-Dropout Voltage References
Typical Operating Characteristics (continued)
(VIN MAX6190/1/2/3/4/8, 5.5V MAX6195; IOUT +25°C; unless otherwise noted.) (Note
MAX6190-MAX6195/MAX6198
MAX6190 LOAD-TRANSIENT RESPONSE
MAX6190 toc19
MAX6195 LOAD-TRANSIENT RESPONSE
+25µA
MAX6190 toc20
MAX6195 TURN-ON TRANSIENT
MAX6190 toc21
IOUT 40µA/div
-25µA
IOUT 50µA/div
2V/div
VOUT 20mV/div
VOUT 50mV/div
VOUT 2V/div
10µs/div IOUT ±25µA, AC-COUPLED
20µs/div 5.5V, IOUT ±25µA, AC-COUPLED
10µs/div
MAX6190 LOAD-TRANSIENT RESPONSE
MAX6190 toc22
MAX6195 LOAD-TRANSIENT RESPONSE
+500µA
MAX6190 toc23
MAX6190 LINE-TRANSIENT RESPONSE
MAX6190 toc24
IOUT 1mA/div
IOUT -500µA 00µA/div
200mV/div
VOUT 00mV/div VOUT 0.2V/div VOUT 100mV/div
10µs/div IOUT ±500µA, AC-COUPLED
20µs/div 5.5V, IOUT ±500µA, AC-COUPLED
2.5µs/div ±0.25V, AC-COUPLED
MAX6195 LINE-TRANSIENT RESPONSE
MAX6190 toc25
200mV/div
VOUT 100mV/div
2µs/div 5.5V ±0.25V, AC-COUPLED
Note Many Typical Operating Characteristics MAX6190 family extremely similar. extremes these characteristics found MAX6190 (1.2V output) MAX6195 (5.0V output) devices. Typical Operating Characteristics remainder MAX6190 family typically between these extremes estimated based their output voltage.
Precision, Micropower, Low-Dropout Voltage References MAX6190-MAX6195/MAX6198
Description
NAME N.C. FUNCTION Connection. internally connected. Supply Voltage Input Ground Reference Voltage Output
Detailed Description
MAX6190-MAX6195/MAX6198 precision bandgap references proprietary curvature-correction circuit laser-trimmed thin-film resistors, resulting temperature coefficient <5ppm/°C initial accuracy better than 0.1%. These devices sink source 500µA with <200mV dropout voltage, making them attractive low-voltage applications.
voltage. Additionally, shunt-mode references have biased maximum expected load current, even load current present time. series-mode MAX6190 family, load current drawn from input voltage only when required, supply current wasted efficiency maximized input voltages. This improved efficiency help reduce power dissipation extend battery life. When supply voltage below minimum specified input voltage during turn-on), devices draw 200µA beyond nominal supply current. input voltage source must capable providing this current ensure reliable turn-on.
Output Voltage Hysteresis
Output voltage hysteresis change output voltage +25°C before after device cycled over entire operating temperature range. Hysteresis caused differential package stress appearing across bandgap core transistors. typical temperature hysteresis value 75ppm.
Applications Information
Output/Load Capacitance
Devices this family require output capacitance frequency stability. They stable capacitive loads from 2.2nF. However, applications where load supply experience step changes, output capacitor will reduce amount overshoot undershoot) assist circuit's transient response. Many applications need external capacitor, this family offer significant advantage these applications when board space critical.
Turn-On Time
These devices typically turn settle within 0.1% their final value 30µs 220µs, depending device. turn-on time increase 1.5ms with device operating minimum dropout voltage maximum load.
Positive Negative Low-Power Voltage Reference
Figure shows typical method developing bipolar reference. circuit uses MAX681 voltage doubler/inverter charge-pump converter power ICL7652, thus creating positive well negative reference voltage.
Supply Current
quiescent supply current these series-mode references maximum 35µA virtually independent supply voltage, with only 0.8µA/V variation with supply voltage. Unlike series references, shuntmode references operate with series resistor connected power supply. quiescent current shunt-mode reference thus function input
Precision, Micropower, Low-Dropout Voltage References MAX6190-MAX6195/MAX6198
VOUT +REF OUTPUT
MAX681
MAX6190- MAX6195 MAX6198
0.1% OUTPUT
ICL7652
V1M, 0.1% 10nF -REF OUTPUT
-2VS
Figure Positive Negative References from Single Supply
Ordering Information (continued)
PART MAX6193AESA MAX6193BESA MAX6193CESA MAX6194AESA MAX6194BESA MAX6194CESA MAX6195AESA MAX6195BESA MAX6195CESA MAX6198AESA MAX6198BESA MAX6198CESA TEMP RANGE -40°C +85°C -40°C +85°C -40°C +85°C -40°C +85°C -40°C +85°C -40°C +85°C -40°C +85°C -40°C +85°C -40°C +85°C -40°C +85°C -40°C +85°C -40°C +85°C PIN-PACKAGE
Typical Operating Circuit
+SUPPLY INPUT (SEE SELECTOR GUIDE FIRST PAGE)
REFERENCE
MAX6190- MAX6195 MAX6198
2.2nF MAX*
*CAPACITORS OPTIONAL
Chip Information
TRANSISTOR COUNT:
Precision, Micropower, Low-Dropout Voltage References MAX6190-MAX6195/MAX6198
Package Information
SOICN.EPS
Maxim cannot assume responsibility circuitry other than circuitry entirely embodied Maxim product. circuit patent licenses implied. Maxim reserves right change circuitry specifications without notice time.
_Maxim Integrated Products, Gabriel Drive, Sunnyvale, 94086 408-737-7600 2001 Maxim Integrated Products Printed registered trademark Maxim Integrated Products.

Precision, Micropower, Low-Dropout Voltage References MAX6190-MAX

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