Ic-analogue Multiplier

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FEATURES Pretrimmed to 0.25% max 4-Quadrant Error (AD534L) All Inputs (X, Y and Z) Differential, High Impedance for + Z2 Transfer Function Scale-Factor Adjustable to Provide to X100 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 Wideband, High-Crest rms-to-dc Conversion Accurate Voltage Controlled Oscillators and Filters Available in Chip Form The wide spectrum of applications and the availability of several grades commend this multiplier as the first choice for all new designs. The AD534J 1% max error), AD534K 0.5% max) and AD534L 0.25% max) are specified for operation over the to +70�C temperature range. The AD534S 1% max) and AD534T 0.5% max) are specified over the extended temperature range, to +125�C. All grades are available in hermetically sealed TO-100 metal cans and TO-116 ceramic DIP packages. K, S and T chips are also available. such as those used to generate sine and tangent. The utility of this feature is enhanced by the inherent low noise of the AD534: 90 �V, rms (depending on the gain), a factor of 10 lower than previous monolithic multipliers. Drift and feedthrough are also substantially reduced over earlier designs. The AD534 is the first general purpose multiplier capable of providing gains to X100, frequently eliminating the need for separate instrumentation amplifiers to precondition the inputs. The AD534 can be very effectively employed as a variable gain differential input amplifier with high common-mode rejection. The gain option is available in all modes, and will be found to simplify the implementation of many function-fitting algorithms REV. A Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. The precise calibration and differential Z-input provide a degree of flexibility found in no other currently available multiplier. Standard MDSSR functions (multiplication, division, squaring, square-rooting) are easily implemented while the restriction to particular input/output polarities imposed by earlier designs has been eliminated. Signals may be summed into the output, with or without gain and with either a positive or negative sense. Many new modes based on implicit-function synthesis have been made possible, usually requiring only external passive components. The output can be in the form of a current, if desired, facilitating such operations as integration. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 Fax: 617/326-8703 The is a monolithic laser trimmed four-quadrant multiplier divider having accuracy specifications previously found only in expensive hybrid or modular products. A maximum multiplication error 0.25% is guaranteed for the AD534L without any external trimming. 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 conditions of use. It is the first multiplier to offer fully differential, high impedance operation on all inputs, including the Z-input, a feature which greatly increases its flexibility and ease of use. The scale factor is pretrimmed to the standard value V; by means of an external resistor, this can be reduced to values as low 3 V. Model Min MULTIPLIER PERFORMANCE Transfer Function Total Error TA = min to max Total Error vs. Temperature Scale Factor Error (SF V Nominal)2 Temperature-Coefficient of Scaling Voltage Supply Rejection 1 V) Nonlinearity, 20 V p-p, 10 V) Nonlinearity, 20 V p-p, X (Y Nulled, 20 V p-p 50 Hz) Y (X Nulled, 20 V p-p 50 Hz) Output Offset Voltage Output Offset Voltage Drift DYNAMICS Small Signal BW (V OUT = 0.1 rms) 1% Amplitude Error (C LOAD = 1000 pF) Slew Rate (V OUT 20 p-p) Settling Time (to 1%, VOUT 20 V) NOISE Noise Spectral-Density V SF Wideband Noise to 5 MHz to 10 kHz OUTPUT Output Voltage Swing Output Impedance (f 1 kHz) Output Short Circuit Current (RL TA = min to max) Amplifier Open Loop Gain = 50 Hz) INPUT AMPLIFIERS (X, Y and Z) 5 Signal Voltage Range (Diff. or CM Operating Diff.) Offset Voltage X, Y Offset Voltage Drift X, Y Offset Voltage Z Offset Voltage Drift Z CMRR Bias Current Offset Current Differential Resistance DIVIDER PERFORMANCE Transfer Function > X2) Total 10 V) SQUARE PERFORMANCE Transfer Function Total Error 10 V) SQUARE-ROOTER PERFORMANCE Transfer Function 1 Z2) Total Error 10 V) POWER SUPPLY SPECIFICATIONS Supply Voltage Rated Performance Operating Supply Current Quiescent PACKAGE OPTIONS TO-116 (D-14) Chips NOTES % %/�C % %/�C mV �V/�C MHz kHz V/�s �s �V/Hz mV/rms �V/rms V mV �V/�C mV �V/�C �A MFigures given are percent of full scale, 10 V (i.e., = 1 mV). May be reduced down 3 V using external resistor between �V S and SF. 3 Irreducible component due to nonlinearity: excludes effect of offsets. 4 Using external resistor adjusted to give V. 5 See Functional Block Diagram for definition of sections. Specifications subject to change without notic e. Specifications shown in boldface are tested on all production units at final electrical test. Results from those tests are used to calculate outgoing quality levels. All min and max specifications are guaranteed, although only those shown in boldface are tested on all production units. Model Min MULTIPLIER PERFORMANCE Transfer Function Total Error TA = min to max Total Error vs. Temperature Scale Factor Error (SF 10.000 V Nominal) 2 Temperature-Coefficient of Scaling Voltage Supply Rejection 1 V) Nonlinearity, 20 V p-p, 10 V) Nonlinearity, 20 V p-p, 10 V) Feedthrough X (Y Nulled, 20 V p-p 50 Hz) Feedthrough Y (X Nulled, 20 V p-p 50 Hz) Output Offset Voltage Output Offset Voltage Drift DYNAMICS Small Signal BW (V OUT = 0.1 rms) 1% Amplitude Error (C LOAD = 1000 pF) Slew Rate (V OUT 20 p-p) Settling Time (to 1%, VOUT 20 V) NOISE Noise Spectral-Density 3 V4 Wideband Noise to 5 MHz to 10 kHz OUTPUT Output Voltage Swing Output Impedance (f 1 kHz) Output Short Circuit Current (RL A = min to max) Amplifier Open Loop Gain = 50 Hz) INPUT AMPLIFIERS (X, Y and Z) 5 Signal Voltage Range (Diff. or CM Operating Diff.) Offset Voltage X, Y Offset Voltage Drift X, Y Offset Voltage Z Offset Voltage Drift Z CMRR Bias Current Offset Current Differential Resistance DIVIDER PERFORMANCE Transfer Function > X2) Total Error 10 V) SQUARE PERFORMANCE Transfer Function Total Error 10 V) SQUARE-ROOTER PERFORMANCE Transfer Function 1 Z2) Total Error 10 V) POWER SUPPLY SPECIFICATIONS Supply Voltage Rated Performance Operating Supply Current Quiescent PACKAGE OPTIONS (D-14) E-20A Chips NOTES %/�C mV �V/�C MHz kHz V/�s �s �V/Hz mV/rms �V/rms V mV �V/�C mV �V/�C �A MFigures given are percent of full scale, 10 V (i.e., = 1 mV). May be reduced down 3 V using external resistor between �V S and SF. 3 Irreducible component due to nonlinearity: excludes effect of offsets. 4 Using external resistor adjusted to give V. 5 See Functional Block Diagram for definition of sections. Specifications subject to change without notice. Specifications shown in boldface are tested on all production units at final electricaltest. Results from those tests are used to calculate outgoing quality levels. All min and max specifications are guaranteed, although only those shown in boldface are tested on all production units. |

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