AD7623ASTZRL

Analog To Digital Converters (ADC) Overview

The AD7623ASTZRL is a 16-bit, 1.33 MSPS PulSAR ADC featuring a charge redistribution architecture with no pipeline delay. It operates from a single 2.5 V supply and includes an internal 2.048 V reference. Key electrical parameters include ±1 LSB typical INL, 88 dB typical SINAD at 100 kHz input frequency, and −97 dB typical THD. The device supports differential inputs up to ±VREF and offers both parallel and serial interfaces compatible with 2.5 V, 3.3 V, or 5 V logic levels.

Analog To Digital Converters (ADC) Feature Summary

• Charge redistribution SAR architecture providing zero pipeline delay for immediate data availability.
• Integrated 2.048 V voltage reference with low temperature drift characteristics.
• Versatile interface supporting parallel bus or SPI/QSPI/MICROWIRE/DSP-compatible serial modes.
• Power dissipation scales automatically with throughput rate for battery-efficient operation.

Analog To Digital Converters (ADC) Applications

• Medical instrumentation systems
• High-speed data acquisition platforms
• Digital signal processing applications
• Communications equipment
• Automated test equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix ASTZRL against the manufacturer's current datasheet to confirm package type and reel specifications. Ensure compatibility with system voltage requirements, specifically the 2.5 V analog supply and OVDD range of 2.3 V to 3.6 V. Confirm that the selected variant meets the required operating temperature range of −40°C to +85°C for your application environment.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 16-bit resolution with 1.33 MSPS throughput is required without pipeline latency. It is suitable for applications needing a single-supply 2.5 V operation and integrated reference to reduce external component count. Consider the available parallel or serial interface options based on host processor capabilities and pin count constraints in the design.

Analog To Digital Converters (ADC) Part Context

The AD7623 serves as a speed upgrade to the AD7677 within Analog Devices' PulSAR family. It provides true differential input capability and 16-bit resolution without missing codes. The device is part of a broader selection of SAR ADCs ranging from 100 kSPS to over 1 MSPS, offering pseudo-differential, true bipolar, and true differential configurations across various resolutions.

Analog To Digital Converters (ADC) Replacement Considerations

The AD7677 is identified as a predecessor model with lower throughput. No other direct public substitutes are explicitly confirmed in the provided documentation. Verify functional equivalence regarding interface timing and pinout if considering alternative parts from different manufacturers or families.