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REF191-EP Datasheet PDF

Analog Devices REF191-EP

The REF191-EP precision band gap voltage reference uses a proprietary 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 REF191-EP is a micropower, low dropout voltage device, providing stable output voltage from supplies with low headroom and consuming less than 50 µA of supply current. The REF191-EP reference is specified over the full military temperature range (−55°C to +125°C).
Part No. REF191-EP
Datasheet REF191-EP Download
Manufacturer
Analog Devices
Description Low Dropout Voltage Reference
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REF191-EP datasheet page 1 preview

FEATURES

Temperature coefficient: 5 ppm/°C maximum High output current: 30 mA Low supply current: 50 µA maximum Initial accuracy: 2.050 V maximum Sleep mode: 15 µA maximum Low dropout voltage Load regulation: 4 ppm/mA typical at TA = 25°C Line regulation: 2 ppm/V typical at TA = 25°C Short-circuit protection ENHANCED PRODUCT

FEATURES

Supports defense and aerospace applications (AQEC standard) Military temperature range: −55°C to +125°C Controlled manufacturing baseline 1 assembly/test site 1 fabrication site Product change notification Qualification data available on request

APPLICATIONS

Portable instruments ADCs and DACs Smart sensors Solar powered applications Loop current powered instruments

GENERAL DESCRIPTION

In sleep mode, which is enabled by applying a low transistor to transistor logic (TTL) or complementary metal-oxide semiconductor (CMOS) level to the SLEEP pin, the output is turned off and supply current is further reduced to less than 15 µA. Precision Micropower, Low Dropou...
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