AD632 Datasheet, PDF (1/6 Pages) Analog Devices – Internally Trimmed Precision IC Multiplier

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FEATURES
Pretrimmed to ±0.5% Max 4-Quadrant Error
All Inputs (X, Y and Z) Differential, High Impedance for
[(X₁–X₂)(Y₁–Y₂)/10] + Z₂ Transfer Function
Scale-Factor Adjustable to Provide up to X10 Gain
Low Noise Design: 90 ␮V rms, 10 Hz–10 kHz
Low Cost, Monolithic Construction
Excellent Long-Term Stability
APPLICATIONS
High Quality Analog Signal Processing
Differential Ratio and Percentage Computations
Algebraic and Trigonometric Function Synthesis
Accurate Voltage Controlled Oscillators and Filters
Internally Trimmed
Precision IC Multiplier
AD632
PIN CONFIGURATIONS
H-Package TO-100
D-Package TO-116
PRODUCT DESCRIPTION
The AD632 is an internally-trimmed monolithic four-quadrant
multiplier/divider. The AD632B has a maximum multiplying
error of ± 0.5% without external trims.
Excellent supply rejection, low temperature coefficients and
long term stability of the on-chip thin film resistors and buried
zener reference preserve accuracy even under adverse condi-
tions. The simplicity and flexibility of use provide an attractive
alternative approach to the solution of complex control func-
tions.
The AD632 is pin-for-pin compatible with the industry standard
AD532 with improved specifications and a fully differential high
impedance Z-input. The AD632 is capable of providing gains of
up to X10, frequently eliminating the need for separate instru-
mentation amplifiers to precondition the inputs. The AD632
can be effectively employed as a variable gain differential input
amplifier with high common-mode rejection. The effectiveness
of the variable gain capability is enhanced by the inherent low
noise of the AD632: 90 µV rms.
PRODUCT HIGHLIGHTS
Guaranteed Performance Over Temperature
The AD632A and AD632B are specified for maximum multi-
plying errors of ± 1.0% and ± 0.5% of full scale, respectively at
+25°C and are rated for operation from –25°C to +85°C.
Maximum multiplying errors of ± 2.0% (AD632S) and ± 1.0%
(AD632T) are guaranteed over the extended temperature range
of –55°C to +125°C.
High Reliability
The AD632S and AD632T series are also available with
MIL-STD-883 Level B screening and all devices are available in
either the hermetically-sealed TO-100 metal can or TO-116
ceramic DIP package.
REV. A
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© Analog Devices, Inc., 1997