DESCRIPTION

· The AD538 is a monolithic real-time computational circuit designed for precision analog multiplication, division, and exponentiation.

· It features low input and output offset voltages with excellent linearity, ensuring accurate computation over a wide input dynamic range.

· The device supports real-time analog signal processing with a bandwidth of 400 kHz and is available in various accuracy grades and temperature ranges.

FEATURES

· Implements the transfer function VO = VY(VZ/VX)m with a wide dynamic range of -1000:1.

· Capable of simultaneous multiplication and division with resistor-programmable powers and roots.

· Low input offsets (<100 μV) and low error (±0.25% of reading) enhance precision.

· Monolithic construction ensures lower cost and higher reliability compared to hybrid and modular circuits.

· Includes on-board +2 V or +10 V scaling references and supports voltage and current input modes.

APPLICATIONS

· Suitable for one- or two-quadrant multiply/divide operations and log ratio computations.

· Effective for squaring/square rooting and trigonometric function approximations.

· Useful in linearization via curve fitting, precision AGC, and power functions.