AD7912AUJZ-REEL

Overview

The AD7912AUJZ-REEL is a 2-channel, 10-bit successive approximation analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates from a single 2.35 V to 5.25 V supply and supports throughput rates up to 1 MSPS. The device features an internal track-and-hold amplifier with a wide input bandwidth capable of handling frequencies exceeding 6 MHz. It utilizes a flexible serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards. Power consumption is low, typically 4.8 mW at 1 MSPS with a 3 V supply. The component is housed in an 8-lead TSOT package.

Feature Summary

• Dual-channel architecture with integrated track-and-hold amplifier for high-speed data acquisition
• Low power operation with dedicated standby mode reducing current consumption to 1 µA maximum
• Flexible serial interface supporting multiple communication protocols including SPI and MICROWIRE
• Daisy-chain capability allowing multiple devices to be connected for expanded system control

Applications

• Battery-powered systems such as personal digital assistants and mobile communications
• Medical instruments requiring precise signal conversion
• Instrumentation and control systems
• Data acquisition systems
• High speed modems and optical sensors

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and reel specifications. Ensure compatibility with required voltage levels and temperature ranges before integration. Cross-reference part numbers with manufacturer databases to avoid counterfeit components. Confirm RoHS compliance status if required for your manufacturing process.

Selection Notes

Select this component when dual-channel conversion is required within space-constrained designs. Consider the 10-bit resolution and 1 MSPS throughput rate for applications needing moderate precision at high speeds. Evaluate power requirements against available supply voltages between 2.35 V and 5.25 V. Check interface compatibility with existing microprocessors or DSPs.

Part Context

This component belongs to the AD7912/AD7922 family of high-speed, low-power ADCs. The AD7912 variant specifically offers 10-bit resolution, while the AD7922 provides 12-bit resolution. Both share similar pinouts and operational characteristics, differing primarily in accuracy and dynamic performance metrics.

Replacement Considerations

Check for direct substitutes within the same product family that may offer different resolution options. Verify pin compatibility and electrical specifications before substituting with other manufacturers' parts. Ensure any replacement maintains the required throughput rate and power consumption levels.