12-Bit Power Amplifier Current Controller
Data Sheet
12-Bit Power Amplifier Current Controller with ADC, DACs, Temperature and Current Sensors
AD7293
FEATURES
4...
Description
Data Sheet
12-Bit Power Amplifier Current Controller with ADC, DACs, Temperature and Current Sensors
AD7293
FEATURES
4 closed-loop power amplifier (PA) drain current controllers Built-in PA protection, sequencing, and alert features Compatible with both depletion mode and enhancement mode
power amplifiers Highly integrated
4 uncommitted 12-bit analog-to-digital converter (ADC) inputs ±0.5 LSB typical integral nonlinearity (INL)
Eight 12-bit voltage digital-to-analog converters (DACs) 1.3 μs maximum settling
4 high-side current sense amplifiers, ±0.1% gain error 2 external temperature sensor inputs, ±1.1°C accuracy Internal temperature sensor, ±1.25°C accuracy 2.5 V on-chip reference Flexible monitoring and control ranges ADC input ranges: 0 V to 1.25 V, 0 V to 2.5 V, and 0 V to 5 V Bipolar DAC ranges: 0 V to +5 V, −4 V to +1 V, and −5 V to 0 V Bipolar DAC reset and clamping relative to VCLAMPx voltage Unipolar DAC ranges: 0 V to 5 V, 2.5 V to 7.5 V, and 5 V to 10 V Current...
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