REF191FS Datasheet PDF – Low Dropout, Voltage Reference

Part Number: REF191FS

Function: Precision micropower, low dropout, voltage reference.

Package: SO-8 Pin Type

Manufacturer: Analog Devices


REF191FS datasheet


The REF191FS, 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 SLEEPpin, the output is turned off and supply current is further reduced to less than 15 μA.


1. Initial Accuracy: 62 mV max
2. Temperature Coefficient: 5 ppm/°C max
3. Low Supply Current: 45 mA max
4. Sleep Mode: 15 mA max
5. Low Dropout Voltage
6. Load Regulation: 4 ppm/mA
7. Line Regulation: 4 ppm/V
8. High Output Current: 30 mA
9. Short Circuit Protection


1. Portable Instrumentation
2. A-to-D and D-to-A Converters
3. Smart Sensors
4. Solar Powered Applications

REF191FS Datasheet PDF Download

REF191FS pdf

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