AD7581KNZ

ADCs/DACs - Special Purpose Overview

The AD7581KNZ is an 8-bit successive approximation register (SAR) analog-to-digital converter manufactured by Analog Devices. It features eight single-ended input channels and operates with a parallel interface. The device supports a sampling rate of 1.5 kS/s and functions on a single 5 V power supply. Key electrical specifications include a differential nonlinearity (DNL) of +/- 0.875 LSB, integral nonlinearity (INL) of +/- 0.75 LSB, and a gain error of +/- 4 LSB. Power dissipation is rated at 8 mW. It is housed in a 28-lead PDIP package and operates within a temperature range of 0°C to +70°C.

ADCs/DACs - Special Purpose Feature Summary

• 8-channel single-ended SAR ADC architecture
• Parallel digital output interface
• Low power consumption of 8 mW
• External reference voltage requirement

ADCs/DACs - Special Purpose Applications

• Data acquisition systems requiring multi-channel input
• Industrial process control monitoring
• Portable instrumentation with battery constraints

ADCs/DACs - Special Purpose Procurement Notes

Verify component availability status as current stock levels may be limited or subject to factory special orders. Confirm RoHS compliance details directly with the manufacturer documentation before procurement planning. Ensure the specific suffix KNZ matches the required packaging and lead finish specifications for the target assembly process.

ADCs/DACs - Special Purpose Selection Notes

Select this component when an 8-bit resolution with multiple single-ended inputs is required for low-speed applications. The parallel interface necessitates sufficient microcontroller or FPGA I/O pins. Verify that the external reference voltage capability aligns with system requirements, as internal references are not provided. Consider the PDIP-28 package size for through-hole mounting constraints.

ADCs/DACs - Special Purpose Part Context

This part belongs to the AD7581 series of CMOS microprocessor-compatible data acquisition systems. It is designed to replace older bipolar ADC technologies while offering lower power consumption. The device integrates a high-speed multiplexer and track-and-hold amplifier to manage the eight input channels efficiently.

ADCs/DACs - Special Purpose Replacement Considerations

Check for direct pin-compatible upgrades within the AD7581 family, such as the AD7581JN, noting differences in operating temperature ranges and lead-free compliance. Verify if newer generations from Analog Devices offer integrated references or higher resolutions suitable for the application.