AD7581KN

ADCs/DACs - Special Purpose Overview

The AD7581KN is an 8-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It features a successive approximation register (SAR) architecture with eight single-ended input channels and a parallel interface. The device operates on a single 5V supply, consuming 8 mW of power. Key performance metrics include a sampling rate of 1.5 kS/s, differential nonlinearity (DNL) of +/- 0.875 LSB, integral nonlinearity (INL) of +/- 0.75 LSB, and gain error of +/- 4 LSB. It utilizes an external reference voltage and is housed in a 28-pin PDIP package suitable for through-hole mounting.

ADCs/DACs - Special Purpose Feature Summary

• 8-channel SAR ADC with 8-bit resolution
• Parallel interface with CMOS uP compatibility
• Low power consumption of 8 mW at 5V supply
• Single-ended input configuration

ADCs/DACs - Special Purpose Applications

• Data acquisition systems
• Industrial process control
• Portable instrumentation

ADCs/DACs - Special Purpose Procurement Notes

Verify component authenticity and RoHS compliance status prior to procurement. Confirm availability as the part may be subject to limited supply or special order constraints. Ensure the specific suffix 'KN' matches the required lead-free or tin/lead termination specifications for the target assembly process.

ADCs/DACs - Special Purpose Selection Notes

Select this component when an 8-bit resolution with 8 multiplexed inputs is required. The 1.5 kS/s sampling rate suits low-speed applications. Verify that the system can accommodate the +/- 4 LSB gain error and requires an external voltage reference. Ensure the design supports parallel data output and through-hole PCB mounting.

ADCs/DACs - Special Purpose Part Context

The AD7581KN belongs to the AD7581 series of data acquisition systems from Analog Devices. This series integrates an 8-bit ADC, sample-and-hold amplifier, and serial/digital interface logic into a single chip. The KN suffix typically denotes a plastic DIP package variant within the broader family of AD7581 devices.

ADCs/DACs - Special Purpose Replacement Considerations

Check for direct pin-compatible substitutes within the AD7581 family, such as the AD7581JN. Verify that alternative parts match the 8-bit resolution, 8-channel count, and 5V operating voltage requirements.