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Analog Devices Semiconductor Electronic Components Datasheet

AD835 Datasheet

4-Quadrant Multiplier

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AD835 pdf
Data Sheet
FEATURES
Simple: basic function is W = XY + Z
Complete: minimal external components required
Very fast: Settles to 0.1% of full scale (FS) in 20 ns
DC-coupled voltage output simplifies use
High differential input impedance X, Y, and Z inputs
Low multiplier noise: 50 nV/√Hz
APPLICATIONS
Very fast multiplication, division, squaring
Wideband modulation and demodulation
Phase detection and measurement
Sinusoidal frequency doubling
Video gain control and keying
Voltage-controlled amplifiers and filters
GENERAL DESCRIPTION
The AD835 is a complete four-quadrant, voltage output analog
multiplier, fabricated on an advanced dielectrically isolated
complementary bipolar process. It generates the linear product
of its X and Y voltage inputs with a −3 dB output bandwidth of
250 MHz (a small signal rise time of 1 ns). Full-scale (−1 V to
+1 V) rise to fall times are 2.5 ns (with a standard RL of 150 Ω),
and the settling time to 0.1% under the same conditions is
typically 20 ns.
Its differential multiplication inputs (X, Y) and its summing
input (Z) are at high impedance. The low impedance output
voltage (W) can provide up to ±2.5 V and drive loads as low as
25 Ω. Normal operation is from ±5 V supplies.
Though providing state-of-the-art speed, the AD835 is simple
to use and versatile. For example, as well as permitting the
addition of a signal at the output, the Z input provides the
means to operate the AD835 with voltage gains up to about ×10.
In this capacity, the very low product noise of this multiplier
(50 nV/√Hz) makes it much more useful than earlier products.
The AD835 is available in an 8-lead PDIP package (N) and an
8-lead SOIC package (R) and is specified to operate over the
−40°C to +85°C industrial temperature range.
250 MHz, Voltage Output,
4-Quadrant Multiplier
AD835
FUNCTIONAL BLOCK DIAGRAM
X1
X = X1 – X2
AD835
X2
XY XY + Z
+ X1
+
W OUTPUT
Y1
Y2 Y = Y1 – Y2
Z INPUT
Figure 1.
PRODUCT HIGHLIGHTS
1. The AD835 is the first monolithic 250 MHz, four-quadrant
voltage output multiplier.
2. Minimal external components are required to apply the
AD835 to a variety of signal processing applications.
3. High input impedances (100 kΩ||2 pF) make signal source
loading negligible.
4. High output current capability allows low impedance loads
to be driven.
5. State-of-the-art noise levels achieved through careful
device optimization and the use of a special low noise,
band gap voltage reference.
6. Designed to be easy to use and cost effective in applications
that require the use of hybrid or board-level solutions.
Rev. E
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©1994–2014 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com


Analog Devices Semiconductor Electronic Components Datasheet

AD835 Datasheet

4-Quadrant Multiplier

No Preview Available !

AD835 pdf
AD835* Product Page Quick Links
Last Content Update: 11/01/2016
Comparable Parts
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Documentation
Application Notes
• AN-213: Low Cost, Two-Chip, Voltage -Controlled
Amplifier and Video Switch
Data Sheet
• AD835: 250 MHz, Voltage Output 4-Quadrant Multiplier
Data Sheet
Tools and Simulations
• AD835 SPICE Macro-Model
Design Resources
• AD835 Material Declaration
• PCN-PDN Information
• Quality And Reliability
• Symbols and Footprints
Discussions
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Sample and Buy
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Technical Support
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number
* This page was dynamically generated by Analog Devices, Inc. and inserted into this data sheet. Note: Dynamic changes to
the content on this page does not constitute a change to the revision number of the product data sheet. This content may be
frequently modified.


Part Number AD835
Description 4-Quadrant Multiplier
Maker Analog Devices
Total Page 15 Pages
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