AD7923BRUZ-REEL7

Overview

The AD7923BRUZ-REEL7 is a 12-bit, high-speed, low-power successive approximation register (SAR) analog-to-digital converter manufactured by Analog Devices Inc. It features four single-ended analog inputs with an integrated channel sequencer and operates from a single 2.7 V to 5.25 V power supply. The device supports throughput rates up to 200 kSPS with a maximum power dissipation of 7.5 mW at 5 V. It utilizes a flexible SPI-compatible serial interface and includes a VDRIVE function for logic level compatibility. The component is housed in a 16-lead TSSOP package and is qualified for automotive applications.

Feature Summary

• Four single-ended analog input channels managed by a programmable channel sequencer
• VDRIVE function enabling direct connection to 3 V or 5 V processor systems independent of AVDD
• Flexible power management modes including auto shutdown and full shutdown capabilities
• No pipeline delay architecture allowing accurate sampling instant control via the CS input

Applications

• Battery-powered instrumentation systems requiring low power consumption
• Industrial process control and data acquisition networks
• Automotive electronic systems meeting qualification standards
• Portable medical devices utilizing single-supply operation

Procurement Notes

Verify the specific ordering suffix REEL7 corresponds to the tape and reel packaging format required for automated assembly processes. Confirm that the B version temperature range of -40°C to +125°C aligns with the operational environmental specifications of the target application design.

Selection Notes

Select this component when a 12-bit resolution and 200 kSPS throughput are required for multi-channel signal acquisition. Ensure the external reference voltage is set to 2.5 V ±1% for specified performance. Verify that the system power supply remains within the 2.7 V to 5.25 V range to maintain valid logic levels and conversion accuracy.

Part Context

This part belongs to the AD7923 family of 4-channel SAR ADCs. It shares architectural similarities with other members like the AD7927 but differs in pin count and channel configuration. The BRUZ suffix indicates the commercial/automotive grade variant in a TSSOP package, distinct from wider industrial temperature ranges found in other series members.

Replacement Considerations

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