AD7952BSTZ

Overview

The AD7952BSTZ is a 14-bit, 1 MSPS differential PulSAR ADC from Analog Devices. It features four programmable input ranges: 0 V to 5 V, 0 V to 10 V, ±5 V, and ±10 V. The device utilizes an internal 5 V reference with a typical drift of 3 ppm/°C and offers a signal-to-noise ratio of 85 dB at 2 kHz. Throughput reaches 1 MSPS in warp mode, 800 kSPS in normal mode, and 670 kSPS in impulse mode. It operates on 5 V analog/digital supplies and includes both parallel and serial interfaces.

Feature Summary

• Configurable input ranges selectable via hardware pins or software commands
• Three distinct sampling modes including warp, normal, and impulse for power optimization
• Integrated high-speed SAR architecture with no pipeline delay
• Dual interface support for parallel bus and SPI-compatible serial communication

Applications

• Process controls
• Medical instruments
• High speed data acquisition
• Digital signal processing
• Instrumentation

Procurement Notes

Verify the specific package variant (LQFP-48) against your PCB footprint requirements. Confirm that the host system provides the necessary high-voltage supplies (VCC and VEE) as this component requires dual polarity rails for operation. Ensure the digital interface voltage levels match the OVDD supply configuration before finalizing the order.

Selection Notes

Select this part when a single-channel, fully differential 14-bit conversion is required at speeds up to 1 MSPS. Consider the warp, normal, or impulse modes based on whether maximum throughput or power efficiency is the priority. Verify compatibility with the available serial or parallel host controller interfaces.

Part Context

This component belongs to the AD7952 series of PulSAR ADCs. It shares architectural similarities with other 14-bit devices in the family but is distinguished by its specific combination of differential inputs, internal reference, and multi-mode throughput capabilities.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the verified documentation.