AD7091R-8BRUZ

Analog To Digital Converters (ADC) Overview

The AD7091R-8BRUZ is an 8-channel, 12-bit successive approximation register (SAR) analog-to-digital converter (ADC) from Analog Devices. It operates on a single 2.7 V to 5.25 V supply and achieves a throughput rate of 1 MSPS with no pipeline delay. The device features an integrated 2.5 V reference with 5 ppm/°C drift, a programmable channel sequencer, and SPI-compatible digital interfaces. Power consumption reaches 1.4 mW at 1 MSPS in normal mode, dropping to 550 nA typical in power-down mode. It supports daisy-chain mode and includes ALERT interrupt and BUSY indication capabilities.

Analog To Digital Converters (ADC) Feature Summary

• 8 single-ended analog input channels with integrated programmable channel sequencer
• 1 MSPS throughput rate with 12-bit resolution and no latency/pipeline delay
• Ultralow power consumption: 1.4 mW at 1 MSPS; 550 nA typical in power-down mode
• On-chip 2.5 V precision voltage reference with 5 ppm/°C typical drift
• SPI/QSPI/MICROWIRE/DSP compatible serial interface with daisy-chain support

Analog To Digital Converters (ADC) Applications

• Battery-powered systems
• Medical instruments
• Data acquisition systems
• Instrumentation and control systems
• Mobile communications

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix BRUZ corresponds to the 24-lead TSSOP package variant when sourcing. Confirm that the required documentation matches Rev D or later revisions of the datasheet for accurate timing and electrical specifications. Ensure compatibility with the intended logic voltage levels on the VDRIVE pin.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring multiple single-ended inputs with low power constraints. The 8-channel configuration eliminates the need for external multiplexers. Verify that the system can accommodate the 24-lead TSSOP footprint. Consider the internal 2.5 V reference if external precision references are not available or desired to save board space.

Analog To Digital Converters (ADC) Part Context

This part belongs to the AD7091R family, which also includes 2-channel (AD7091R-2) and 4-channel (AD7091R-4) variants. All members share identical core ADC performance, including 12-bit resolution, 1 MSPS speed, and ultralow power characteristics. The primary distinction lies in the number of analog input channels and the corresponding package pin count.

Analog To Digital Converters (ADC) Replacement Considerations

Direct functional replacements within the same family include the AD7091R-2 and AD7091R-4, provided fewer channels are acceptable. For multi-channel requirements, other 8-channel SAR ADCs may be considered, but power consumption and interface compatibility must be verified against the AD7091R-8 specifications.