AD7537KN

The AD7537KN is a dual 12-bit current output digital-to-analog converter (DAC) manufactured by Analog Devices using LC2MOS technology. It integrates two 12-bit DACs on a single monolithic chip, each with a separate reference input, ensuring excellent thermal tracking and saving board space. The device uses a 2-byte (8 LSBs, 4 MSBs) loading structure designed for right-justified data format, with control signals A0, A1, CS, WR, and UPD for register loading and simultaneous update of both DACs. An asynchronous CLR line simplifies calibration routines by clearing all registers.

The AD7537KN operates from a supply voltage range of 12V to 15V and provides unbuffered current outputs. It requires external references for each DAC. The double-buffered data inputs allow simultaneous update, and separate AGND lines increase versatility, enabling different biasing configurations for each DAC.

This DAC is housed in a 24-pin DIP package (0.300" width, 7.62mm pitch) with through-hole mounting, making it suitable for breadboarding and legacy designs. Typical applications include automatic test equipment, programmable filters, audio processing, synchro applications, and process control. The device is guaranteed 12-bit monotonic over the full temperature range.