Description：

The TPA1287 is a low-cost, wide supply rangeinstrumentation amplifier that requires only one externalresistor to set any gain between 1 and 1,000. TheTPA1287 is designed to work with a variety of singlevoltages. A wide input range and rail-to-rail output allowthe signal to fully use the supply rails. Low voltage offset,low offset drift, low gain drift, high gain accuracy, and highCMRR make this part an excellent choice in applicationsthat demand the best DC performance.The TPA1287 operates from a single 4-V to 36-V supply,and offers breakthrough performance throughout the−40°C to +125°C temperature range. It features a zerodrift core, which leads to the offset drift of 0.2 μV/°Cthroughout the operating temperature range.The TPA1287 is available in SOP8 and MSOP8 packages.

Features：

• Excellent DC Specifications

– Small Voltage Offset: ±40 ± 240/G μV(Max)

– Small Voltage Offset Drift: ±0.2±0.3/G μV/°C (Max)

– Small Input Bias Current: 1.5 nA (Max)

• Excellent AC Specifications

– CMRR: 80 dB @ G = 1 (Min)

– Small Input Noise: 15 nV/√Hz @ G=10

– Input Noise (0.1 Hz to 10 Hz): 1 μV p-p

– −3dB Bandwidth: 1.2 MHz

– Slew Rate: 1.6 V/μs

• Gain Set with 1 External Resistor (Gain Range 1 to1,000)

• Supply Voltage: ±2 V to ±18 V

• Rail-to-Rail for Voltage Output

• Operating Temperature: –40°C to +125°C

• SOP8, MSOP8 Packages

Applications：

• Weigh Scales for Bridge Amplifiers

• Medical and ECG Amplifiers

• Industrial Process Control

• Precision Data Acquisition System

• Pressure Sensors

• Precision Current Measurement