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AD8451 Datasheet Precision Analog Front End And Controller

Manufacturer: Analog Devices

Overview: Low Cost, Precision Analog Front End and Controller for Battery Test/Formation Systems Data.

General Description

The AD8451 is a precision analog front end and controller for testing and monitoring battery cells.

A precision fixed gain instrumentation amplifier (IA) measures the battery charge/ discharge current, and a fixed gain difference amplifier (DA) measures the battery voltage (see Figure 1).

Internal laser trimmed resistor networks set the gains for the IA and the DA, optimizing the performance of the AD8451 over the rated temperature range.

Key Features

  • Integrated constant current and voltage modes with automatic switchover Charge and discharge modes Precision voltage and current measurement Integrated precision control feedback blocks Precision interface to PWM or linear power converters Fixed gain settings Current sense gain: 26 V/V (typ) Voltage sense gain: 0.8 V/V (typ) Excellent ac and dc performance Maximum offset voltage drift: 0.9 µV/°C Maximum gain drift: 3 ppm/°C Low current sense amplifier input voltage noise: 9 nV/√Hz typ Current se.

More Datasheets from Analog Devices

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AD841 Fast Settling Op Amp
AD8410 Current Sense Amplifier

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