REF19xGS

REF19x series REF19xGS 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 a high initial accuracy.

The REF19x series REF19xGS is made up of micropower, Low Dropout Voltage (LDV) devices providing a stable output voltage from supplies as low as 100 mV above the output voltage and consuming less than 45 A 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 A.

The REF19x series REF19xGS 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 8-lead SOIC; the PDIP and TSSOP are only available in the lowest electrical grade. Products are also available in die form.

Test Pins of REF19xGS (TP) The test pins, Pin 1 and 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.

Since each unit may require a different amount of adjustment, the resistance value at the test pins ofREF19xGS will vary widely from pin to pin as well as from part to part. The user should not make any physical nor electrical connections to Pin 1 and Pin 5.