AD7912ARMZ-REEL

Overview

The AD7912ARMZ-REEL is a dual-channel, 10-bit successive approximation analog-to-digital converter manufactured by Analog Devices. It operates from a single 2.35 V to 5.25 V supply and supports throughput rates up to 1 MSPS. The device features a low-noise track-and-hold amplifier capable of handling input frequencies exceeding 6 MHz. It utilizes an SPI-compatible serial interface for data transfer and includes a daisy-chain mode for multi-device configurations. Power consumption is minimized through a standby mode drawing a maximum of 1 µA. The component is housed in an 8-lead MSOP package and is rated for operation between -40°C and +85°C.

Feature Summary

• Dual-channel architecture with integrated track-and-hold amplifier
• Low power dissipation with dedicated standby mode
• Flexible serial interface compatible with standard microprocessor protocols
• Daisy-chain capability for simplified multi-device system expansion

Applications

• Battery-powered portable systems
• Medical instrumentation
• Data acquisition systems
• Industrial process control

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature grade. Ensure the procurement channel provides valid manufacturer traceability. Confirm that the reel packaging matches the required quantity specifications for the production line. Cross-reference the part number with the latest datasheet revision to ensure compatibility with existing design parameters.

Selection Notes

Select this component when a low-power, high-speed solution is required for dual-channel signal acquisition. The internal reference derived from VDD simplifies the circuit design by eliminating the need for external voltage references. Consider the MSOP package dimensions for space-constrained PCB layouts. Evaluate the serial clock speed requirements to optimize the trade-off between throughput rate and power consumption.

Part Context

This component belongs to the AD7912/AD7922 family of high-speed, low-power ADCs. While the AD7922 variant offers 12-bit resolution, the AD7912 provides 10-bit accuracy. Both share identical pinouts, interfaces, and power characteristics. The ARMZ suffix indicates the MSOP package style and lead-free composition compliant with RoHS standards.

Replacement Considerations

The AD7922ARMZ-REEL serves as a higher-resolution alternative within the same package and interface ecosystem. Designers requiring greater precision may substitute this part with the AD7922 variant without altering the board layout or software drivers.