AD7993BRU-1REEL

Overview

The AD7993BRU-1REEL is a 4-channel, 10-bit successive approximation analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It features an I2C-compatible serial interface supporting standard, fast, and high-speed modes with pin-selectable addressing via the AS pin. The device operates from a single 2.7 V to 5.5 V power supply and includes a track-and-hold amplifier capable of handling input frequencies up to 11 MHz. Key specifications include a typical conversion time of 2 µs, a throughput rate of 188 kSPS at 5 V, and low power consumption with a maximum shutdown current of 1 µA. It utilizes an external reference voltage ranging from 1.2 V to VDD.

Feature Summary

• I2C-compatible serial interface supporting standard, fast, and high-speed communication modes
• Pin-selectable addressing allowing multiple devices on the same serial bus
• Automatic cycle interval mode for software-controlled conversion timing
• Out-of-range indicator/alert function with programmable high and low limit registers

Applications

• Battery-powered instruments requiring low power consumption
• High-speed closed-loop control systems
• Data acquisition systems with multi-channel requirements

Procurement Notes

Verify the specific ordering suffix REEL against manufacturer documentation to confirm tape and reel packaging configuration. Ensure the -1 suffix aligns with required I2C high-speed mode support. Cross-reference the B version temperature range (-40°C to +125°C) with application environmental constraints before finalizing procurement.

Selection Notes

Select this component when four single-ended channels are required within a 16-lead TSSOP package. The AD7993 variant provides 10-bit resolution; consider the AD7994 if 12-bit accuracy is necessary. Verify that the system supports I2C high-speed mode if utilizing the -1 suffix for clock frequencies up to 3.4 MHz.

Part Context

This part belongs to the AD7993/AD7994 family of low-power, multi-channel ADCs. It serves as a 4-channel solution, complementing the 8-channel AD7998 and 2-channel AD7992 equivalents. The BRU designation indicates a commercial temperature grade in a TSSOP package, while the -1 suffix specifies I2C high-speed mode capability.

Replacement Considerations

The AD7993BRUZ-0 is a compatible alternative offering standard and fast I2C modes only. For higher resolution needs, the AD7994 series provides 12-bit performance. The AD7998 offers eight channels in a 20-lead package.