Texas Instruments REF3140
The REF31xx is a family of precision, low power, low dropout, series voltage references available in the tiny 3-pin SOT-23 package. The REF31xx's small size and low power consumption (100 μA typical) make it ideal for portable and battery-powered applications. The REF31xx does not require a load capacitor, but is stable with any capacitive load and can sink or source up to 10 mA of output current.FEATURES
●1 MicroSize Package: SOT23-3● Low Dropout: 5 mV
● High Output Current: ±10 mA
● High Accuracy: 0.2% Maximum
● Low IQ: 115 µA Maximum
● Excellent Specified Drift Performance: – 15 ppm/°C (Maximum) from 0°C to +70°C – 20 ppm/°C (Maximum) from –40°C to +125°C 2
APPLICATIONS
● Portable, Battery-Powered Equipment● Data Acquisition Systems
● Medical Equipment
● Hand-Held Test Equipment Typical Application 3.3V REF3133 V+ ADS7822 VREF VCC 0.1mF 5W + 1mF to 10mF + 1mF to 10mF VS GND VIN +In CS -In DOUT GND DCLOCK Microcontroller 3
DESCRIPTION
Unloaded, the REF31xx can operate on supplies down to 5 mV above the output voltage. All models are specified for the wide temperature range of –40°C to +125°C. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) REF31xx SOT-23 (3) 2.92 mm × 1.30 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Dropout Voltage vs Load Current 120 100 Dropout Voltage (mV) 80 60 40 20 0 -15 -10 -5 0 5 Load Current...