AD7893ANZ-10

Overview

The AD7893ANZ-10 is a 12-bit successive approximation analog-to-digital converter (ADC) housed in an 8-pin mini-DIP package. It operates from a single +5 V supply and features an on-chip track/hold amplifier, internal clock, and high-speed serial interface. The device accepts an analog input voltage range of ±10 V with a maximum conversion time of 6 µs and a typical power dissipation of 25 mW. It provides a signal-to-noise ratio of 70 dB min at a sampling rate of 117 kHz. The output coding for the -10 version is two's complement binary.

Feature Summary

• Integrated signal scaling allows direct acquisition of ±10 V analog inputs while operating from a single +5 V supply.
• On-chip track/hold amplifier ensures accurate digitization of full-scale sine waves up to the Nyquist rate.
• Two-wire serial interface simplifies connection to microcontrollers and DSP processors using SCLK and SDATA lines.

Applications

• Battery-powered or portable instrumentation requiring low power consumption.
• Industrial process control systems utilizing serial communication buses.
• Data acquisition systems requiring isolated or remote sensor signal conditioning.

Procurement Notes

Verify that the specific ordering suffix corresponds to the required temperature range and package type. Confirm the analog input range specification matches the system requirements, as the -10 variant supports bipolar ±10 V inputs. Ensure external reference components meet the specified voltage tolerance to maintain accuracy.

Selection Notes

Select this component when space constraints necessitate an 8-pin ADC with integrated signal conditioning. Compare performance against other variants if different input ranges such as unipolar 0-5 V are required. Consider the throughput rate limitations imposed by the serial read cycle when designing the system timing.

Part Context

This part belongs to the AD7893 family of fast 12-bit ADCs fabricated in Linear Compatible CMOS (LC2MOS) technology. The family includes variants with different input ranges and packages, offering flexibility for various design needs while maintaining consistent core conversion performance and interface protocols.

Replacement Considerations

Public confirmed substitute part numbers: None identified in verified documentation.