REF192GSZ Ultra-Low Noise 2.5V Voltage Reference with ±0.1% Initial Accuracy 3ppm/°C Drift 60µA Quiescent Current 10mA Output -40°C to +125°C Range & SOT-23 Package

REF192GSZ Ultra-Low Noise 2.5V Voltage Reference with ±0.1% Initial Accuracy 3ppm/°C Drift 60µA Quiescent Current 10mA Output -40°C to +125°C Range & SOT-23 Package

FEATURES

Temperature coefficient: 5 ppm/°C maximum

High output current: 30 mA

Low supply current: 45 μA maximum

Initial accuracy: ±2 mV maximum1

Sleep mode: 15 μA maximum

Low dropout voltage

Load regulation: 4 ppm/mA

Line regulation: 4 ppm/V

Short-circuit protection

APPLICATIONS

Portable instruments

ADCs and DACs

Smart sensors

Solar powered applications

Loop-current-powered instruments

GENERAL DESCRIPTION

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 the SLEEP pin, 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.

TEST PINS

Test Pin 1 and Test Pin 5 are reserved for in-package Zener zap. To achieve the highest level of accuracy at the output, the Zener zapping technique is used to trim the output voltage. Because each unit may require a different amount of adjustment, the resistance value at the test pins varies widely from pin to pin and from part to part. The user should leave Pin 1 and Pin 5 unconnected.

INFORMATION

Drawing

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