AD7871JP-REEL

Overview

The AD7871JP-REEL is a complete monolithic 14-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It utilizes a successive approximation architecture with an integrated track-and-hold amplifier, internal clock oscillator, and 3 V buried Zener reference. The device operates from ±5 V power supplies and accepts bipolar input signals within the ±3 V range. Key electrical specifications include an 80 dB signal-to-noise ratio at a 10 kHz input frequency, a maximum throughput rate of 83 kSPS, and a typical power dissipation of 50 mW. The component is housed in a 28-pin PLCC package.

Feature Summary

• Complete 14-bit resolution with no missing codes guaranteed across the full scale.
• Versatile digital interface supporting parallel 14-bit word, two-byte, and serial data formats.
• Integrated laser-trimmed internal clock eliminates the need for external timing components.
• Low power consumption with a typical dissipation of 50 mW.

Applications

• Digital signal processing systems
• High-speed modem applications
• Speech recognition and synthesis equipment
• Spectrum analysis instrumentation

Procurement Notes

Verify that the specific ordering suffix JP-REEL corresponds to the 28-pin PLCC package configuration and reel packaging format as defined in the official Analog Devices Ordering Guide. Confirm that the revision level matches the required datasheet version for compatibility with system design specifications.

Selection Notes

Select this component when a single-channel, high-resolution ADC with flexible interface options is required. Ensure the system design accommodates dual ±5 V power rails and provides adequate decoupling for the internal 3 V reference output. Verify that the 83 kSPS throughput rate meets the Nyquist requirements for the target analog input bandwidth.

Part Context

This part belongs to the AD7871/AD7872 family of LC2MOS mixed technology sampling ADCs. While the AD7872 offers only serial output, the AD7871 variant supports multiple data formats. The 'JP' designation indicates the 28-pin PLCC package, and the '-REEL' suffix denotes tape-and-reel delivery for automated assembly processes.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult the manufacturer's current product selection guide for updated alternatives or cross-reference information regarding pin-compatible successors.