AD7880BR-REEL

Overview

The AD7880BR-REEL is a monolithic 12-bit analog-to-digital converter (ADC) fabricated in Analog Devices' LC2MOS process. It operates from a single +5 V supply and delivers a throughput rate of 66 kS/s with a total conversion time of 15 μs, comprising a 12 μs successive-approximation cycle and a 3 μs on-chip track/hold acquisition period. The device features a 70 dB minimum signal-to-noise ratio (SNR), ±1 LSB integral and differential nonlinearity, and fast data access times of 57 ns. It supports three user-selectable input ranges: 0 to 5 V, 0 to 10 V, and ±5 V, utilizing an internal resistor network for unipolar and bipolar configurations.

Feature Summary

• Integrated track-and-hold amplifier enables high-speed sampling with minimal external components.
• Versatile interface logic allows direct connection to standard microprocessors and DSPs via parallel outputs.
• Internal attenuator network facilitates flexible analog input range selection without external scaling circuits.

Applications

• Battery-powered portable systems requiring low power consumption
• Digital signal processing and speech recognition applications
• High-speed modem implementations

Procurement Notes

Verify the specific suffix 'BR' corresponds to the SOIC-24 package variant when sourcing. Confirm that the REEL designation matches the required bulk packaging format for automated assembly lines. Ensure compatibility with the -40°C to +85°C industrial temperature range specified for this grade.

Selection Notes

Select this component for designs requiring a single +5 V supply operation with moderate speed requirements up to 66 kS/s. It is suitable for applications needing configurable input ranges without external amplifiers. Consider the parallel interface constraints if interfacing with modern serial-only processors.

Part Context

This part belongs to the AD7880 family of single-supply, low-power 12-bit ADCs. The BR suffix specifically denotes the Small Outline Integrated Circuit (SOIC) package option within the product line, distinguishing it from DIP or Cerdip variants.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.