AD7293BCPZ-RL

ADCs/DACs - Special Purpose Overview

The AD7293BCPZ-RL is a 12-bit power amplifier current controller integrating four closed-loop drain current controllers, an eight-channel DAC array, and a four-channel SAR ADC. It features four high-side current sense amplifiers with ±0.1% gain error and two external temperature sensor inputs with ±1.1°C accuracy. The device operates on a 4.5 V to 5.5 V supply range and includes a 2.5 V internal reference. It utilizes a serial SPI interface supporting 1.8 V, 3 V, and 5 V logic levels via the VDRIVE pin.

ADCs/DACs - Special Purpose Feature Summary

• Four independent closed-loop PA drain current controllers with adjustable ramp times
• Eight 12-bit DACs (four bipolar, four unipolar) with 1.3 µs maximum settling time
• Four high-side current sense amplifiers supporting up to 60 V common-mode voltage
• Integrated 12-bit SAR ADC with ±0.5 LSB typical INL and 72 dB SNR

ADCs/DACs - Special Purpose Applications

• GaN and GaAs power amplifier monitoring and controls
• Base station power amplifier biasing and protection
• General-purpose system monitoring and controls

ADCs/DACs - Special Purpose Procurement Notes

Verify that the AVDD and DACVDD-BI pins are connected to the same potential during implementation. Confirm the specific reel packaging quantity matches the project requirements for the -RL suffix. Ensure the evaluation board EVAL-AD7293SDZ is available for initial hardware validation.

ADCs/DACs - Special Purpose Selection Notes

Select this component when designing systems requiring integrated closed-loop current control for both depletion and enhancement mode power amplifiers. The device supports flexible monitoring ranges including 0 V to 5 V for ADC inputs and various bipolar/unipolar DAC configurations. Verify thermal resistance specifications against the PCB layout constraints.

ADCs/DACs - Special Purpose Part Context

This part belongs to the AD7293 series of specialized data acquisition converters. It is designed specifically for power amplifier applications where precise current regulation and multi-channel monitoring are required within a single chip solution.

ADCs/DACs - Special Purpose Replacement Considerations

Public confirmed substitute part numbers are not provided in the source documentation.