ADR127

Precision, Micropower LDO Voltage References in TSOT ADR121/ADR125/ADR127 FEATURES Initial accuracy A grade: ±0.24% B grade: ±0.12% Maximum temperature coefficient A grade: 25 ppm/°C B grade: 9 ppm/°C Low dropout: 300 mV for ADR121/ADR125 High output current: +5 mA/−2 mA Low typical operating current: 85 μA Input range: 2.7 V to 18 V for ADR127 Temperature range: −40°C to +125°C Tiny TSOT (UJ-6) package APPLICATIONS Battery-powered instrumentation Portable medical equipment Data acquisition systems Automotive GENERAL DESCRIPTION The ADR121/ADR125/ADR127 are a family of micropower, high precision, series mode, band gap references with sink and source capability. The parts feature high accuracy and low power consumption in a tiny package. The ADR12x design includes a patented temperature-drift curvature correction technique that minimizes the nonlinearities in the output voltage vs. temperature characteristics. PIN CONFIGURATION NC1 1 6 NC1 ADR12x GND 2 TOP VIEW 5 NC1 (Not to Scale) VIN 3 4 VOUT NC = NO CONNECT 1 MUST BE LEFT FLOATING Figure 1. 05725-001 The ADR12x is a low dropout voltage reference, requiring only 300 mV for the ADR121/ADR125 and 1.45 V for the ADR127 above the nominal output voltage on the input to provide a stable output voltage. This low dropout performance, coupled with the low 85 μA operating current, makes the ADR12x ideal for battery-powered applications. Available in an extended industrial temperature range of −40°C to +125°C, the ADR121/ADR1...