The AD539 is a low-distortion analog multiplier having two identical signal channels (Y1 and Y2), with a common X-input providing linear control of gain. Excellent ac characteristics up to video frequencies and a 3dB bandwidth of over 60MHz are provided. Although intended primarily for applications where speed is importanct the circuit exhibits good static accuracy in "computational" applications. Scaling is accurately determined by a band-gap voltage reference and all critical parameters are laser-trimmed during manufacture.

The full bandwidth can be realized over most of the gain range using the AD539 with simple resistive loads of up to 100 (Ohms). Output voltage is restricted to a few hundred millivolts under these conditions. Using external op amps such as the AD5539 in conjuction with the on-chip scaling resistors, accurate multiplication can be achieved, with bandwidths typically as high as 50 MHz.

The two channels provide flexibility. In single-channel applications they may be used in parallel, to double the output current, or series, to achieve a square law gain function with a control range or over 100dB, or differentially, to reduce distortion. Alternatively, they may be used independently, as in audio stereo applications, with low crosstalk between channels. Voltage controlled filters and oscillators using the "state-variable" approach are easily designed, taking advantage of the dual channels and common control. The AD539 is available in three versions: the "J" and "K" grades are specified for 0 to +70°C operation and "S" grade is guaranteed over the extended range of -55°C to +125°C. The J and K grades are available in either a hermetic ceramic DIP (D) or a low cost plastic DIP (N), while the S grade is available in ceramic DIP (D) or LCC (E). J-grade chips are also available. The S grade is now available in MIL-STD-883 and Standard Military Drawing (DESC) Number 5962-8980901EA versions.

Part#	Transfer Function	BW	Slew Rate (V/µs	Supply Voltage (V max)	Supply Current (max)	Error (%FS@25°C)	Settling Time	Output Swing	Input Voltage Range (V)	Temp Range	Price* (1000-4999)
AD532	(X1-X2)(Y1-Y2)/(10V)	1MHz	45	±22	6	1	1µs	± 10V	±10	-55 to 125°C	$16.95
AD534	(X1-X2)(Y1-Y2)/(10V)+Z2	1MHz	20	±22	6	0.25	2µs	± 11V	±10	-55 to 125°C	$17.77
AD538	Vy(Vz/Vx)^m	400kHz	1.4	±18	7	1	-	± 11V	±10	-55 to 125°C	$17.26
AD539	-VxVy/Vu	25MHz	-	±15	10.2	2.5	-	± 2.8mA	±4.2	-55 to 125°C	$18.99
AD632	[(X1–X2)(Y1–Y2)/10] + Z2	1MHz	20	±22	6	0.5	2µs	± 11V	±12	-55 to 125°C	$12.45
AD633	[(X1–X2)(Y1–Y2)/10] + Z	1MHz	20	±18	6	2	2µs	± 11V	±10	-40 to 85°C	$4.15
AD734	[(X1–X2)(Y1–Y2)/U] + Z2	10MHz	450	±16.5	12	0.4	200ns	12V	±12.5	-55 to 125°C	$14.02
AD834	(4mA)*XY/(1V^2)	500MHz	-	±9	35	2	-	± 4.04mA	±1	-40 to 85°C	$17.71
AD835	[(X1–X2)(Y1–Y2)/U] + Z2	250MHz	1,000	±5.5	25	2	20ns	± 2.5V	±1	-40 to 85°C	$9.91
ADL5391	W= aXY/U+Z	2000MHz	8,800	+5.5	135	1	2.1ns	Vpos-2.5 V	+2.5	-40 to 85°C	$4.95
MLT04	[(X1–X2)(Y1–Y2)/2.5V]	8MHz	53	±5.25	20	5	1µs	± 3V	±2.5	-40 to 85°C	-

* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.

The model number is a specific version of a generic that can be purchased or sampled.

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• Pre-Release: The model has not been released to general production, but samples may be available.
• Production: The model is currently being produced, and generally available for purchase and sampling.
• Last Time Buy: The model has been scheduled for obsolescence, but may still be purchased for a limited time.
• Obsolete: The specific part is obsolete and no longer available. Other models listed in the table may still be available (if they have a status that is not obsolete).

The package for this IC (i.e. DIP, SOIC, BGA). An Evaluation Board is a board engineered to show the performance of the model, the part is included on the board.

For detailed drawings and chemical composition please consult our  Package Site

Pin Count is the number of pins, balls, or pads on the device. Pin-out diagrams & pin function descriptions may be found in the datasheet.

This is the acceptable operating range of the device. The various ranges specified are as follows:

• Commercial: 0 to +70 degrees Celsius
• Military : -55 to +125 degrees Celsius
• Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
• Automotive: -40 to +125 degrees Celsius

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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