AD7729ARU-REEL

ADCs/DACs - Special Purpose Overview

The AD7729ARU-REEL is a dual-channel, low-power CMOS device featuring two 15-bit Sigma-Delta analog-to-digital converters and an auxiliary 10-bit digital-to-analog converter. Operating on a single +3 V supply, it includes an internal bandgap voltage reference and FIR digital filters with a 3 dB cutoff at 96 kHz. The ADCs provide a signal-to-noise ratio of 64 dB and an output word rate of 270.83 kHz. It utilizes a baseband serial port for data transmission and an auxiliary serial port for control. The component is housed in a 28-lead TSSOP package.

ADCs/DACs - Special Purpose Feature Summary

• Dual 15-bit Sigma-Delta ADCs with integrated FIR digital filtering
• Auxiliary 10-bit DAC for functions such as Automatic Gain Control
• Internal 1.3 V bandgap voltage reference
• Baseband and Auxiliary Serial Ports (BSPORT/ASPORT) for DSP compatibility

ADCs/DACs - Special Purpose Applications

• GSM Base Stations
• Pager Receivers

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix 'RU' indicates the 28-lead Thin Shrink Small Outline (TSSOP) package. Confirm the temperature range corresponds to the Industrial grade (-40 °C to +105 °C). Ensure the reel packaging matches the REEL designation in the ordering guide.

ADCs/DACs - Special Purpose Selection Notes

Select this component for applications requiring differential I/Q sampling with high dynamic range. The 15-bit resolution and 64 dB SNR are suitable for baseband processing. Verify that the system can accommodate the 47 ms filter settling time after power-up or mode changes.

ADCs/DACs - Special Purpose Part Context

This part belongs to the AD7729 family of dual Sigma-Delta ADCs. The 'A' suffix denotes the industrial temperature range, while 'RU' specifies the TSSOP package type. The 'REEL' suffix indicates tape-and-reel shipping configuration.

ADCs/DACs - Special Purpose Replacement Considerations

No direct public substitutes are listed in the provided documentation. Evaluate other Analog Devices dual ADCs if pin compatibility or package constraints differ.