AD8451 Datasheet (Analog Devices) - Precision Analog Front End and Controller

AD8451, Precision Analog Front End and Controller

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 l

AD8451 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