The document presents circuit designs utilizing various analog-digital conversion integrated circuits to realize specific functions efficiently. It covers the use of devices such as the AD537 V/f converter, AD1408, AD561, AD7520 d/a converters, and the AD581 reference in applications like instrumentation and data acquisition.
Specific circuit examples include an ohms-to-frequency converter using the AD537 for remote measurements, a method for algebraic manipulation of digital inputs to produce analog quotients using DACs, and an 8-bit programmable square-wave oscillator combining the AD1408 family with the AD537 family.
The discussion includes the AD537 V/f converter, the AD1408, AD561, and AD7520 d/a converters, as well as the AD581 reference.
It provides added flexibility by facilitating remote measurements, averaged measurements, and optional a/d or f/V conversion at the destination.
The circuit comprises a current-output d/a converter from the AD1408 family and a current-to-frequency converter from the AD537 family.