TPA1285中文資料思瑞浦?jǐn)?shù)據(jù)手冊PDF規(guī)格書

Features

? VOLTAGE OFFSET: ±100uV (MAX)

? WIDE COMMON MODE VOLTAGE: 3.0V to +76V

? SUPPLY VOLTAGE: 3.0V to +5.5V

? ACCURACY and ZERO-DRIFT PERFORMANCE

◆ ±0.5% Gain Error (Max over temperature)

◆ 0.4μV/°C Offset Drift (Max, -40°C ~125°C)

◆ 10ppm/°C Gain Drift (Max)

? THREE GAIN OPTIONS for VOLTAGE OUTPUT

◆ TPA1285T: 20V/V

◆ TPA1285F: 50V/V

◆ TPA1285H: 100V/V

? Rail-to-Rail Output

? Industrial –40°C to 125°C Operation Range

? ESD Rating: Robust 2.5kV – HBM, 1.5kV – CDM

Applications

? CURRENT SENSING (High?Side)

? BATTERY CHARGERS

? POWER MANAGEMENT

? AUTOMOTIVE

? SERVER BACKPLANES

? BASE STATIONS & TELECOM EQUIPMENT

? INDUSTRIAL CONTROL AND AUTOMATION

Description

The TPA1285, high precision, high common voltage, 2

channel high-side current sense amplifier has very high

precision accuracy specifications of Vos less than 100μV (max)

and gain error less than 0.5% (max). Three fixed gains are

available: 20V/V, 50V/V, and 100V/V. The low offset of the zerodrift architecture enables current sensing with maximum drops

across the shunt as low as 5mV full-scale.

The TPA1285 features an input common-mode voltage

range from 3.0V to 76V with 80kHz of small-signal bandwidth,

which makes it ideal for small signal conditioning interfacing with

a SAR ADC.

The TPA1285 offers breakthrough performance throughout

the ?40°C to +125°C temperature range. It features a zero-drift

core, which leads to a maxim offset drift of 0.4μV/°C throughout

the operating temperature range and the common-mode

voltage range. The TPA1285 is offered 8-pin MSOP package