AD7951BCPZRL

Overview

The AD7951BCPZRL is a 14-bit, 1 MSPS PulSAR ADC fabricated on iCMOS technology. It features multiple programmable input ranges: 0 V to 5 V, 0 V to 10 V, ±5 V, and ±5 V. Throughput reaches 1 MSPS in warp mode, 800 kSPS in normal mode, and 670 kSPS in impulse mode. The device includes an internal 5 V reference with ±3 ppm/°C drift and a TEMP output. Power dissipation is 235 mW at 1 MSPS and 10 µW in power-down mode. It supports parallel (14- or 8-bit) and serial interfaces compatible with SPI/QSPI/MICROWIRE/DSP standards.

Feature Summary

• Configurable analog input ranges selectable via hardware pins or software commands
• Three distinct sampling modes optimizing throughput versus power consumption
• Integrated high-speed SAR architecture with no pipeline delay
• Dual interface options supporting both parallel bus and serial communication protocols

Applications

• Process control systems
• Medical instruments
• High speed data acquisition
• Digital signal processing
• Instrumentation and spectrum analysis

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and reel specifications. Ensure compatibility with system voltage requirements for AVDD, DVDD, OVDD, VCC, and VEE supplies before integration. Confirm temperature range specifications match the operational environment constraints.

Selection Notes

Select this component when 14-bit resolution and high throughput are required alongside flexible input range configuration. Consider the internal reference stability and temperature sensor output if external calibration resources are limited. Evaluate power consumption profiles across warp, normal, and impulse modes based on system duty cycles.

Part Context

This part belongs to the Analog Devices PulSAR family of successive approximation register converters. It utilizes iCMOS process technology to achieve high voltage tolerance and low power operation. The series offers various resolutions and speeds, positioning this model as a high-performance solution for demanding analog-to-digital conversion tasks.

Replacement Considerations

Consult the manufacturer's selection guide for alternative parts within the same performance tier. Verify pinout compatibility and electrical parameter overlaps such as resolution, throughput, and supply voltages before substituting.