AD7880CRZ-REEL

Overview

The AD7880CRZ-REEL is a monolithic 12-bit successive-approximation analog-to-digital converter (ADC) fabricated in Analog Devices' LC2MOS process. It operates from a single +5 V supply and achieves a throughput rate of 66 kHz with a total conversion time of 15 μs, comprising a 12 μs conversion period and a 3 μs track/hold acquisition time. The device features three user-selectable input ranges: 0 V to +5 V, 0 V to +10 V, and ±5 V. Dynamic performance includes a typical signal-to-noise ratio (SNR) of 72 dB and a total harmonic distortion (THD) of -80 dB at a 1 kHz input frequency. DC accuracy specifications guarantee integral nonlinearity (INL) and differential nonlinearity (DNL) within ±1 LSB.

Feature Summary

• Integrated track-and-hold amplifier enables high-speed data acquisition without external components.
• Versatile interface logic supports direct connection to standard microprocessors and digital signal processors.
• Internal resistor network facilitates unipolar and bipolar signal handling using only a single positive supply voltage.

Applications

• Battery-powered portable systems
• Digital signal processing
• Speech recognition and synthesis
• High-speed modems

Procurement Notes

Verify the specific suffix 'CRZ-REEL' against the manufacturer's current ordering guide to confirm package type and reel packaging details. Ensure the component meets industrial temperature range requirements (-40°C to +85°C). Confirm RoHS compliance status for the specific manufacturing batch prior to integration into production designs.

Selection Notes

Select this component when a single-supply 12-bit resolution is required for moderate-speed applications up to 66 kHz. Consider the internal reference capability tied to VDD for simplified circuit design. Evaluate power consumption constraints, as the device offers a low-power mode suitable for battery-operated equipment requiring extended operational life.

Part Context

The AD7880 series represents Analog Devices' legacy high-performance SAR ADC technology designed for cost-effective signal digitization. The 'C' designation indicates the industrial temperature grade, while 'R' specifies the SOIC package format. This part belongs to a family known for robust mixed-signal performance in telecommunications and instrumentation environments.

Replacement Considerations

Direct pin-compatible replacements include the AD7880BNZ and AD7880BRZ variants, which share identical electrical characteristics but may differ in temperature grades or package styles. Verify that any substitute maintains the 12-bit resolution and 66 kHz throughput requirements.