AD7910ARMZ

Overview

The AD7910ARMZ is a 10-bit, high-speed, low-power successive approximation analog-to-digital converter manufactured by Analog Devices Inc. It operates from a single power supply ranging from 2.35 V to 5.25 V and supports throughput rates up to 250 kSPS. The device features an internal track-and-hold amplifier capable of handling input frequencies exceeding 13 MHz. Power dissipation is specified at 15 mW maximum under operational conditions with a 5 V supply. The component utilizes a flexible serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards.

Feature Summary

• Integrated track-and-hold amplifier for wide bandwidth signal acquisition
• Flexible power management with standby mode reducing current consumption to 1 μA maximum
• Internal reference derived directly from the power supply voltage
• Zero pipeline delay architecture for immediate data availability

Applications

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

Procurement Notes

Verify the specific package variant against the ordering suffix, as the AD7910 series includes both SC70 and MSOP options. Confirm that the A-grade specifications meet the required linearity and noise performance thresholds for the target application environment before finalizing procurement.

Selection Notes

Select this component when a single-channel, 10-bit resolution is sufficient for the system requirements. Ensure the design accommodates the 0 V to VDD analog input range and provides adequate decoupling for the 2.35 V to 5.25 V supply rails to maintain optimal dynamic performance.

Part Context

This part belongs to the AD7910/AD7920 family of micropower ADCs. While the AD7920 offers 12-bit resolution, the AD7910 provides 10-bit precision in the same physical footprint. Both share identical pinouts and functional characteristics, differing primarily in bit depth and associated accuracy metrics.

Replacement Considerations

The AD7920 serves as a higher-resolution alternative within the same package and family. Verify compatibility if upgrading to 12-bit performance is required without altering the board layout.