The TPA1286 is a low cost, wide supply range instrumentation amplifier that requires only one external resistor to set any gain between 1 and 1,000.

The TPA1286 is designed to work with a variety of single voltages. A wide input range and rail-to-rail output allow the signal to make full use of the supply rails. Low voltage offset, low offset drift, low gain drift, high gain accuracy, and high CMRR make this part an excellent choice in applications that demand the best DC performance.

The TPA1286 operates from single 4V to 36V supply, offers breakthrough performance throughout the −40°C to +125°C temperature range. It features a zero-drift core, which leads to a typical offset drift of 0.2μV/°C throughout the operating temperature range.

TPA1286 is available in SOP8, MSOP8 and DFN3X3-8 package.

Features

◼ Excellent DC specifications

◆ Small voltage offset: ±50uV (MAX)

◆ Small voltage offset drift: 0.2μV/°C (MAX)

◆ Small input bias current: 1.5nA (MAX)

◼ Excellent AC specifications

◆ CMRR: 80dB @ G=1 (MIN)

◆ Small input noise: 15nV/√Hz @ G=10

◆ Input noise (0.1 Hz to 10 Hz): 1 μV p-p

◆ -3dB Bandwidth: 1.6MHz ◆ Slew rate: 5V/us

◼ Gain set with 1 external resistor (gain range 1 to 1,000)

◼ SUPPLY VOLTAGE: ±2V to ±18V

◼ RAIL to RAIL for VOLTAGE OUTPUT

◼ Operating Temperature: –45°C to +125°C

◼ SOP8, MSOP8 & DFN3X3-8 PACKAGE

Applications

◼ Weigh scales for bridge amplifiers

◼ Medical and ECG Amplifiers

◼ Industrial Process Control

◼ Precision data acquisition system

◼ Pressure sensors

◼ Precision current measurement