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Datasheet Analog Devices AD8451

ManufacturerAnalog Devices
SeriesAD8451

Low Cost Precision Analog Front End and Controller for Battery Test/Formation Systems

Datasheets

  • Download » Datasheet, PDF, 966 Kb
    AD8451: Low Cost, Precision Analog Front End and Controller for Battery Test/Formation Systems Data Sheet
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    Low Cost, Precision Analog Front End and
    Controller for Battery Test/Formation Systems AD8451 Data Sheet
    FEATURES GENERAL DESCRIPTION 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 ВµV/В°C
    Maximum gain drift: 3 ppm/В°C
    Low current sense amplifier input voltage noise: 9 nV/в€љHz typ
    Current sense CMRR: 108 dB min
    TTL compliant logic 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 ...

Prices

Status

AD8451ASTZAD8451ASTZ-RL
Lifecycle StatusProduction (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)

Packaging

AD8451ASTZAD8451ASTZ-RL
Package80 ld LQFP (14x14mm)80 ld LQFP (14x14mm)
Pins8080
Package CodeST-80-2ST-80-2

Parametrics

AD8451ASTZAD8451ASTZ-RL
AutomotiveNoNo
Charger TypeLinearLinear
Is(typ), A13.5m13.5m
Operating Temperature Range, °C-40 to 85-40 to 85
Power Primary FunctionBattery Charge Controller, Battery Mgmt AFE, Battery MonitorBattery Charge Controller, Battery Mgmt AFE, Battery Monitor
Special FeaturesBattery Charge Controller, Battery MonitorBattery Charge Controller, Battery Monitor
Vin(max), V3636
Vin(min), V-31-31

Eco Plan

AD8451ASTZAD8451ASTZ-RL
RoHSCompliantCompliant

Moldel Line

Series: AD8451 (2)

Manufacturer's Classification

  • Application Specific > Industrial Battery Manufacturing

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