AD7685CCPZ-R2

Analog To Digital Converters (ADC) Overview

The AD7685CCPZ-R2 is a 16-bit, 250 kSPS PulSAR analog-to-digital converter in a 10-lead MSOP package. It operates on a single supply from 2.3 V to 5.5 V with a 1.8 V to 5 V logic interface. Key electrical parameters include a typical SINAD of 93.5 dB at 20 kHz and THD of −110 dB. The device features pseudo-differential inputs ranging from 0 V to VREF, no pipeline delay, and power dissipation scaling linearly with throughput.

Analog To Digital Converters (ADC) Feature Summary

• Charge redistribution successive approximation architecture with no missing codes
• Versatile serial interface compatible with SPI, QSPI, MICROWIRE, and DSP protocols
• Capability to daisy-chain multiple ADCs or enable a BUSY indicator via the SDI input

Analog To Digital Converters (ADC) Applications

• Battery-powered equipment
• Medical instruments
• Mobile communications
• Data acquisition systems
• Process controls

Analog To Digital Converters (ADC) Procurement Notes

Verify that the specific suffix R2 corresponds to reel packaging as indicated by distributor listings. Confirm the grade (A, B, or C) matches application requirements for linearity and gain error specifications. Ensure the operating temperature range of −40°C to +85°C aligns with the system environment.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring high resolution and low power consumption. The 250 kSPS throughput supports dynamic signal processing. Consider the pseudo-differential input structure for noise rejection. Verify compatibility with the host microcontroller's digital voltage levels using the separate VIO pin.

Analog To Digital Converters (ADC) Part Context

This part belongs to the Analog Devices PulSAR family of 16-bit SAR ADCs. It shares pinout compatibility with other members like the AD7686 and AD7687, facilitating design flexibility within the same product line while offering distinct performance characteristics regarding speed and linearity.

Analog To Digital Converters (ADC) Replacement Considerations

The datasheet confirms pin-for-pin compatibility with the AD7686, AD7687, and AD7688 in the 10-lead MSOP package. These devices offer alternative sampling rates or linearity grades suitable for direct substitution if system timing or accuracy constraints differ.