AD7993BRU-1

Overview

The AD7993BRUZ-1 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. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V with a typical conversion time of 2 µs and a throughput rate up to 188 kSPS. It includes four single-ended analog input channels, an external reference input, and an ALERT/BUSY output pin. The component is housed in a 16-lead TSSOP package and is specified for operation over a temperature range of -40°C to +125°C.

Feature Summary

• I2C-compatible serial interface with pin-selectable addressing for multiple devices on the same bus
• Sequencer operation with automatic cycle interval mode and one-shot conversion capabilities
• Out-of-range indicator/alert function with programmable high and low limit registers
• Low power consumption with automatic shutdown between conversions

Applications

• Portable battery-powered instrumentation
• Industrial process control systems
• Chemical analysis solutions
• Data acquisition systems requiring multi-channel input

Procurement Notes

Verify the specific suffix '-1' indicates support for high-speed I2C modes compared to the '-0' variant. Confirm the 'B' version meets the required industrial temperature range specifications. Ensure the ordering information matches the exact package type and manufacturer details provided in official documentation before finalizing procurement.

Selection Notes

Select this component when a 10-bit resolution with four single-ended inputs is required. The '-1' suffix is necessary if high-speed I2C communication modes are needed. Consider the AD7994 if 12-bit resolution is preferred, or the AD7998 for eight-channel applications. Ensure the external reference voltage falls within the 1.2 V to VDD range.

Part Context

The AD7993BRUZ-1 belongs to the AD7993/AD7994 family of low-power, 4-channel ADCs. It shares functional similarities with the AD7998 (8-channel) and AD7992 (2-channel) devices within the same product line. These components utilize a SAR architecture and are designed for space-constrained applications requiring efficient power management and flexible serial communication.

Replacement Considerations

The AD7993BRUZ-0 serves as a direct alternative but lacks high-speed I2C mode support. For higher resolution requirements, the AD7994BRU-0Z provides 12-bit performance. Systems requiring more channels may utilize the AD7998 series.