Texas Instruments REF2025
The REF20xx provides a reference voltage (VREF) for the ADC and a second highly-accurate voltage (VBIAS) that can be used to bias the input bipolar signals. The REF20xx offers excellent temperature drift (8 ppm/°C, maximum) and initial accuracy (0.05%) on both the VREF and VBIAS outputs while operating at a quiescent current less than 430 µA.FEATURES
● Two outputs, VREF and VREF / 2, for convenient use in single-supply systems● Excellent temperature drift performance: – 8 ppm/°C (maximum) from –40°C to 125°C
● High initial accuracy: ±0.05% (maximum)
● VREF and VBIAS tracking overtemperature: – 6 ppm/°C (maximum) from –40°C to 85°C – 7 ppm/°C (maximum) from –40°C to 125°C
● Microsize package: SOT23-5
● Low dropout voltage: 10 mV
● High output current: ±20 mA
● Low quiescent current: 360 μA
● Line regulation: 3 ppm/V
● Load regulation: 8 ppm/mA
● Matte-Sn version (REF2025AISDDCR) for improved corrosion resistance in the Battelle Class III and similar harsh environments 2
APPLICATIONS
● Electricity meter● Analog input module
● Analog output module
● Servo drive control module
● Circuit breaker (ACB, MCCB, VCB)
● Clinical digital thermometer
● Lab & field instrumentation
● Battery test Power Supply RSHUNT ISENSE VIN+ INA213 VOUT VIN- REF VBIAS 1.5 V REF2030 GND EN Application Example ADC VREF 3.0 V VIN 3
DESCRIPTION
Applicat...