GENERAL DESCRIPTION

The AD538 is a monolithic real-time computational circuit that provides precision analog multiplication, division, and exponentiation. The combination of low input and output offset voltages and excellent linearity results in accurate computation over an unusually wide input dynamic range. Laser wafer trimming makes multiplication and division with errors as low as 0.25 of reading possible, while typical output offsets of 100 μV or less add to the overall off-the-shelf performance level. Real-time analog signal processing is further enhanced by the 400 kHz bandwidth of the device.

FEATURES

VO = VY(VZ/VX)m transfer function

Wide dynamic range (denominator) −1000:1

Simultaneous multiplication and division

Resistor-programmable powers and roots

No external trims required

Low input offsets <100 μV

Low error ±0.25 of reading (100:1 range)

Monolithic construction

Real-time analog multiplication, division and

exponentiation

High accuracy analog division with a wide input dynamic range

On board +2 V or +10 V scaling reference

Voltage and current (summing) input modes

Monolithic construction with lower cost and higher

reliability than hybrid and modular circuits

APPLICATIONS

One- or two-quadrant multiply/divide

Log ratio computation

Squaring/square rooting

Trigonometric function approximations

Linearization via curve fitting

Precision AGC

Power functions

参考价格：531.2741

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