REF191ESZ

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Analog Devices Inc./Maxim Integrated

VOLTAGE REFERENCE IC, 2PPM/°C, 2.048V, 0.1%, SERIES - FIXED, NSOIC-8, -40°C TO 85°C

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REF191ESZ

Active

Analog Devices Inc./Maxim Integrated

VOLTAGE REFERENCE IC, 2PPM/°C, 2.048V, 0.1%, SERIES - FIXED, NSOIC-8, -40°C TO 85°C

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Description Specifications Series Pricing CAD Documents

Description

General part information

REF191 Series

The REF19x series precision band gap voltage references use a patented temperature drift curvature correction circuit and laser trimming of highly stable, thin-film resistors to achieve a very low temperature coefficient and high initial accuracy.The REF19x series is made up of micropower, low dropout voltage (LDV) devices, providing stable output voltage from supplies as low as 100 mV above the output voltage and consuming less than 45 μA of supply current. In sleep mode, which is enabled by applying a low TTL or CMOS level to theSLEEPpin, the output is turned off and supply current is further reduced to less than 15 μA.The REF19x series references are specified over the extended industrial temperature range (−40°C to +85°C) with typical performance specifications over −40°C to +125°C for applications, such as automotive.All electrical grades are available in an 8-lead SOIC package; the PDIP and TSSOP packages are available only in the lowest electrical grade.ApplicationsPortable instrumentsADCs and DACsSmart sensorsSolar powered applicationsLoop-current-powered instrumentsData Sheet, Rev. J, 3/08

Technical Specifications

Parameters and characteristics for this part

Specification	REF191ESZ

Current - Output	30 mA
Current - Supply	45 µA
Mounting Type	Surface Mount
Noise	20 µVp-p
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Output Type	Fixed
Package Length	0.154 in
Package Name	8-SOIC
Package Width	3.9 mm
Reference Type	Series
Temperature Coefficient	5 ppm/°C
Tolerance	0.1 %
Voltage - Input (Maximum)	15 V
Voltage - Input (Minimum)	3 V
Voltage - Output (Min/Fixed)	2.048 V

REF191 Series

Part	Operating Temperature (Max)	Operating Temperature (Min)	Voltage - Output (Min/Fixed)	Mounting Type	Package Name	Reference Type	Temperature Coefficient	Voltage - Input (Minimum)	Voltage - Input (Maximum)	Tolerance	Output Type	Noise	Package Length	Package Width	Current - Output	Current - Supply	Voltage - Input
Analog Devices Inc./Maxim Integrated REF191GPZ
Analog Devices Inc./Maxim Integrated REF191ESZ	85 °C	-40 °C	2.048 V	Surface Mount	8-SOIC	Series	5 ppm/°C	3 V	15 V	0.1 %	Fixed	20 µVp-p	0.154 in	3.9 mm	30 mA	45 µA
Analog Devices Inc./Maxim Integrated REF191FS	85 °C	-40 °C	2.048 V	Surface Mount	8-SOIC	Series	10 ppm/°C			0.24 %	Fixed	20 µVp-p	0.154 in	3.9 mm	30 mA	45 µA	18 V
Analog Devices Inc./Maxim Integrated REF191GP
Analog Devices Inc./Maxim Integrated REF191GSZ	85 °C	-40 °C	2.048 V	Surface Mount	8-SOIC	Series	25 ppm/°C	3 V	15 V	0.5 %	Fixed	20 µVp-p	0.154 in	3.9 mm	30 mA	45 µA
Analog Devices Inc./Maxim Integrated REF191GS	85 °C	-40 °C	2.048 V	Surface Mount	8-SOIC	Series	25 ppm/°C	3 V	15 V	0.5 %	Fixed	20 µVp-p	0.154 in	3.9 mm	30 mA	45 µA
Analog Devices Inc./Maxim Integrated REF191TRZ-EP	125 °C	-55 °C	2.048 V	Surface Mount	8-SOIC	Series	5 ppm/°C	3 V	15 V	0.1 %	Fixed	20 µVp-p	0.154 in	3.9 mm	30 mA	45 µA
Analog Devices Inc./Maxim Integrated REF191GS-REEL	85 °C	-40 °C	2.048 V	Surface Mount	8-SOIC	Series	25 ppm/°C	3 V	15 V	0.5 %	Fixed	20 µVp-p	0.154 in	3.9 mm	30 mA	45 µA
Analog Devices Inc./Maxim Integrated REF191GSZ-REEL	85 °C	-40 °C	2.048 V	Surface Mount	8-SOIC	Series	25 ppm/°C	3 V	15 V	0.5 %	Fixed	20 µVp-p	0.154 in	3.9 mm	30 mA	45 µA
Analog Devices Inc./Maxim Integrated REF191ESZ-REEL	85 °C	-40 °C	2.048 V	Surface Mount	8-SOIC	Series	5 ppm/°C	3 V	15 V	0.1 %	Fixed	20 µVp-p	0.154 in	3.9 mm	30 mA	45 µA

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

Package Drawing - 8-Lead SOIC

REF19x Series: Precision Micropower, Low Dropout Voltage References Data Sheet (Rev.L)

REF191-EP: Precision Micropower, Low Dropout Voltage Reference Data Sheet (Rev.0)

REF191ESZ | Datasheet