AD7927BRUZ-REEL7

Overview

The AD7927BRUZ-REEL7 is a 12-bit, high-speed successive approximation analog-to-digital converter (ADC) featuring eight single-ended inputs and an integrated channel sequencer. It operates from a single 2.7 V to 5.25 V supply with throughput rates up to 200 kSPS. The device includes a wide bandwidth track-and-hold amplifier capable of handling input frequencies exceeding 8 MHz. Power consumption reaches a maximum of 7.5 mW at 5 V and 3.6 mW at 3 V during operation. It utilizes a flexible serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards.

Feature Summary

• Eight single-ended analog inputs managed by a programmable channel sequencer for automated sequential conversions.
• VDRIVE function enables the serial interface to connect directly to 3 V or 5 V processor systems independent of the analog supply voltage.
• Flexible power management modes including normal operation, auto shutdown, and full shutdown to optimize efficiency based on throughput requirements.
• No pipeline delays associated with the conversion process, allowing accurate control of sampling instants via the CS input.

Applications

• Industrial process control systems requiring multi-channel data acquisition.
• Automotive sensor signal conditioning and monitoring applications.
• Battery-powered instrumentation benefiting from low power consumption and single-supply operation.
• Data acquisition modules interfacing with microprocessors or digital signal processors.

Procurement Notes

Verify that the specific ordering suffix matches the required temperature grade and packaging format. Confirm the component meets RoHS compliance standards for your region. Ensure the supplier provides valid traceability documentation. Check for automotive qualification status if the application requires AEC-Q100 certification. Validate the package type against your PCB footprint requirements before finalizing the order.

Selection Notes

Select this component when eight single-ended channels are required within a compact TSSOP-20 package. Choose the B version for commercial temperature ranges (-40°C to +85°C). Consider the W version if extended industrial temperatures up to +125°C are necessary. Ensure the system supports the required external reference voltage of 2.5 V for specified performance. Verify that the serial clock frequency can reach up to 20 MHz to achieve maximum throughput.

Part Context

This part belongs to the AD7927 family of 12-bit ADCs designed for low-power, multi-channel applications. It shares architectural similarities with other devices in the series but is distinguished by its eight-channel configuration and integrated sequencer. The BRUZ-REEL7 designation indicates a specific reel packaging variant manufactured by Analog Devices Inc. for surface-mount assembly.

Replacement Considerations

Direct substitutes include the AD7927BRUZ and AD7927WYRUZ variants which share identical pinouts and electrical specifications. Cross-reference the temperature range and automotive qualification requirements when selecting alternatives. Verify that any replacement maintains the same 20-lead TSSOP package dimensions and serial interface compatibility.