Precision IC Multiplier
FEATURES FUNCTIONAL BLOCK DIAGRAM
Pretrimmed to 0.25% maximum 4-quadrant error (AD534L) +V
All inputs (X, Y, and Z) differential, high impedance for AND BIAS S
[(X X )(Y Y )/10 V] + Z transfer function
1 2 1 2 2
Scale factor adjustable to provide up to 100 gain
(X X ) (Y Y )
1 2 1 2
V = A (Z
X 1 2
Low noise design: 90 V rms, 10 Hz to10 kHz
Low cost, monolithic construction
Excellent long-term stability
0.75 ATTEN AMPLIFIER
High quality analog signal processing
Differential ratio and percentage computations
Algebraic and trigonometric function synthesis
Wideband, high crest rms-to-dc conversion
Accurate voltage controlled oscillators and filters
Available in chip form
The AD534 is a monolithic laser trimmed four-quadrant multi- The wide spectrum of applications and the availability of several
plier divider having accuracy specifications previously found grades commend this multiplier as the first choice for all new
only in expensive hybrid or modular products. A maximum designs. The AD534J (1% maximum error), AD534K (0.5%
multiplication error of 0.25% is guaranteed for the AD534L maximum), and AD534L (0.25% maximum) are specified for
without any external trimming. Excellent supply rejection, low operation over the 0C to +70C temperature range. The AD534S
temperature coefficients and long-term stability of the on-chip (1% maximum) and AD534T (0.5% maximum) are specified
thin film resistors and buried Zener reference preserve accuracy over the extended temperature range, 55C to +125C. All
grades are available in hermetically sealed TO-100 metal cans
even under adverse conditions of use. It is the first multiplier to
offer fully differential, high impedance operation on all inputs, and SBDIP packages. AD534K, AD534S, and AD534T chips are
including the Z input, a feature that greatly increases its flexibility also available.
and ease of use. The scale factor is pretrimmed to the standard
value of 10.00 V; by means of an external resistor, this can be
reduced to values as low as 3 V.
Rev. D Document Feedback
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Last Content Update: 03/04/2017
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AD534: Internally Trimmed Precision IC Multiplier Data
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