AD7823YRZ-REEL7

Overview

The AD7823YRZ-REEL7 is an 8-bit successive approximation analog-to-digital converter (ADC) from Analog Devices, housed in an 8-lead microSOIC package. It operates on a single supply voltage ranging from 2.7 V to 5.5 V and supports a maximum throughput rate of 200 kS/s with a typical conversion time of 4 µs. The device features a pseudo-differential input structure and an external reference input. Key performance metrics include a signal-to-noise ratio of 48 dB, differential nonlinearity of ±0.5 LSB, integral nonlinearity of ±0.5 LSB, and gain error of ±1 LSB. Power dissipation is specified at 17.5 mW under nominal conditions.

Feature Summary

• Inherent track-and-hold functionality with pseudo-differential input architecture
• Automatic power-down mode triggered by CONVST signal state for low-power operation
• Microcontroller-compatible serial interface requiring no external logic
• Wide operating temperature range specified from -40°C to +125°C

Applications

• Battery-powered test equipment
• Battery-powered communications systems
• Low power hand-held portable applications

Procurement Notes

Verify the specific reel packaging configuration against the REEL7 suffix requirements before ordering. Confirm that the component meets RoHS compliance standards for the intended manufacturing process. Ensure the source documentation matches the REV.C datasheet specifications to guarantee parameter accuracy. Check for any obsolescence notices or lifecycle status updates from the manufacturer prior to final procurement decisions.

Selection Notes

Select this component when an 8-bit resolution with high-speed serial interface is required in a compact surface-mount package. Consider the automatic power-down feature if battery life is critical for portable designs. Ensure the application can accommodate the pseudo-differential input scheme or connect VIN– to ground for single-ended operations. Verify that the external reference voltage range aligns with the system's available supply rails.

Part Context

The AD7823YRZ-REEL7 belongs to the AD7823 series of 8-bit ADCs manufactured by Analog Devices. This series is designed for space-constrained applications requiring moderate speed and low power consumption. The Y suffix indicates the industrial temperature grade (-40°C to +125°C), while the RZ denotes the SOIC-8 package variant. The REEL7 suffix specifies the tape and reel packaging format suitable for automated assembly processes.

Replacement Considerations

The AD7810 is documented as a direct upgrade path offering 10-bit resolution within the same package footprint. No other specific substitute part numbers are confirmed in the provided documentation.