描述 Description

The TPA1295 family is of high voltage, Bi-directional current sense amplifier with voltage output. The TPA1295 can sense drops across shunts at common-mode voltages from 0.3V to 70 V. The TPA1295 are available with three output voltage scales: 20V/V, 50V/V, 100V/V, with up to 500KHz bandwidth.

The TPA1295 operates from single 3V to 18V 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 0.4μV/°C throughout the operating temperature range and the common-mode voltage range.

The TPA1295 family is offered in 8-pin SOP package

特性 Features

? SMALL VOLTAGE OFFSET:
? TPA1295: ±100uV (MAX)


? WIDE COMMON MODE VOLTAGE: -0.3V to +70V

? WIDE CMRR THROUGH COMMON VOLTAGE: 130dB

? SUPPLY VOLTAGE: 3V to +18V

? ACCURACY and ZERO-DRIFT PERFORMANCE
? ±0.5% Gain Error (Max, -40°C ~125°C)

? 0.5μV/°C Offset Drift (Max, -40°C ~125°C)

? 5ppm/°C Gain Drift (Max, -40°C ~125°C)


? THREE GAIN OPTIONS for VOLTAGE OUTPUT
? TPA1295T: 20V/V

? TPA1295F: 50V/V

? TPA1295H: 100V/V

應(yīng)用 Application

? CURRENT SENSING (High?Side/Low-Side)
? BATTERY CHARGERS & POWER MANAGEMENT
? AUTOMOTIVE
? INDUSTRIAL CONTROL AND AUTOMATION
? BASE STATIONS & TELECOM EQUIPMENT