AD7910AKS-REEL7

Overview

The AD7910AKS-REEL7 is a 10-bit successive approximation analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates from a single supply voltage ranging from 2.35 V to 5.25 V and supports throughput rates up to 250 kSPS. The device features a wide bandwidth track-and-hold amplifier capable of handling input frequencies exceeding 13 MHz. It utilizes an internal reference derived from the power supply, eliminating the need for external components. The ADC communicates via a high-speed serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards. It is housed in a compact 6-lead SC70 package.

Feature Summary

• Low power consumption with flexible management options including a standby mode drawing a maximum of 1 μA.
• Integrated track-and-hold amplifier providing a wide input bandwidth for high-frequency signal acquisition.
• No pipeline delays associated with the conversion process, ensuring accurate timing control via the CS input.
• Internal reference derived directly from the VDD supply to maximize dynamic input range.

Applications

• Battery-powered systems
• Medical instruments
• Data acquisition systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure compatibility with the required packaging format. Confirm that the component meets all necessary regulatory standards for the intended deployment environment. Cross-reference the part number with official distributor catalogs to validate availability and authenticity before finalizing procurement plans.

Selection Notes

Select this component when a low-power, single-channel 10-bit ADC is required for space-constrained designs. Ensure the system clock frequency aligns with the specified 5 MHz maximum to achieve optimal performance. Verify that the analog input signal range falls within the 0 V to VDD limits defined in the specifications table.

Part Context

This component belongs to the AD7910/AD7920 series of high-speed, low-power ADCs. While the AD7920 offers 12-bit resolution, the AD7910 provides 10-bit resolution with similar power and speed characteristics. Both variants share identical pinouts and operational modes, allowing for design flexibility based on resolution requirements.

Replacement Considerations

The AD7910ARMZ serves as a direct replacement offering the same 10-bit resolution but utilizes an 8-lead MSOP package instead of the 6-lead SC70 form factor. Designers must account for the physical footprint differences when substituting these parts in existing layouts.

FAQ

How is the conversion process initiated?

The conversion process is initiated by the falling edge of the Chip Select (CS) signal, which also frames the serial data transfer.

What is the analog input voltage range?

The analog input voltage range is from 0 V to VDD, utilizing the power supply as the internal reference.

Does the device have pipeline delays?

No, the AD7910 does not have pipeline delays; it uses a standard successive approximation architecture.