AD834JRZ-RL Analog Devices Inc, AD834JRZ-RL Datasheet

AD834JRZ-RL

Manufacturer Part Number

AD834JRZ-RL

Description

IC,Analog Multiplier,BIPOLAR,SOP,8PIN,PLASTIC

Manufacturer

Analog Devices Inc

Datasheet

1.AD834JRZ.pdf (20 pages)

Specifications of AD834JRZ-RL

Function

Analog Multiplier

Number Of Bits/stages

4-Quadrant

Package / Case

8-SOIC (3.9mm Width)

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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FEATURES

DC to >500 MHz operation

Differential ±1 V full-scale inputs

Differential ±4 mA full-scale output current

Low distortion (≤0.05% for 0 dBm input)

Supply voltages from ±4 V to ±9 V

Low power (280 mW typical at V

APPLICATIONS

High speed real time computation

Wideband modulation and gain control

Signal correlation and RF power measurement

Voltage controlled filters and oscillators

Linear keyers for high resolution television

Wideband true RMS

GENERAL DESCRIPTION

The AD834 is a monolithic, laser-trimmed four-quadrant analog

multiplier intended for use in high frequency applications, with

a transconductance bandwidth (R

from either of the differential voltage inputs. In multiplier

modes, the typical total full-scale error is 0.5%, dependent on

the application mode and the external circuitry. Performance

is relatively insensitive to temperature and supply variations due

to the use of stable biasing based on a band gap reference generator

and other design features.

To preserve the full bandwidth potential of the high speed bipolar

process used to fabricate the AD834, the outputs appear as a

differential pair of currents at open collectors. To provide a

single-ended ground referenced voltage output, some form of

external current-to-voltage conversion is needed. This may take

the form of a wideband transformer, balun, or active circuitry

such as an op amp. In some applications (such as power measure-

ment), the subsequent signal processing may not need to have

high bandwidth.

The transfer function is accurately trimmed such that when

X = Y = ±1 V, the differential output is ±4 mA. This absolute

calibration allows the outputs of two or more AD834 devices

to be summed with precisely equal weighting, independent of

the accuracy of the load circuit.

The AD834J, available in 8-lead PDIP and plastic SOIC packages, is

specified over the commercial temperature range of 0°C to 70°C.

The AD834A is also available in 8-lead CERDIP and plastic SOIC

packages operating over the industrial temperature range of

Rev. E

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 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.

Trademarks and registered trademarks are the property of their respective owners.

= 50 Ω) in excess of 500 MHz

= ±5 V)

500 MHz Four-Quadrant Multiplier

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

−40°C to +85°C. The AD834SQ/883B, available in an 8-lead

CERDIP, operates over the military temperature range of −55°C

to +125°C. S-grade chips are also available.

Two application notes featuring the AD834 (AN-212 and AN-216)

can be found at www.analog.com. For additional applications

circuits, consult the

PRODUCT HIGHLIGHTS

Combines high static accuracy (low input and output

offsets and accurate scale factor) with very high bandwidth.

As a four-quadrant multiplier or squarer, the response

extends from dc to an upper frequency limited by packaging

and external board layout considerations. Obtains a large

signal bandwidth of >500 MHz under optimum conditions.

Used in many high speed nonlinear operations, such as

square rooting, analog division, vector addition, and rms-

to-dc conversion. In these modes, the bandwidth is limited

by the external active components.

Special design techniques result in low distortion levels

(better than −60 dB on either input) at high frequencies

and low signal feedthrough (typically −65 dB up to 20 MHz).

Exhibits low differential phase error over the input range—

typically 0.08° at 5 MHz and 0.8° at 50 MHz. The large

signal transient response is free from overshoot and has an

intrinsic rise time of 500 ps, typically settling to within 1%

in under 5 ns.

The nonloading, high impedance, differential inputs

simplify the application of the AD834.

FUNCTIONAL BLOCK DIAGRAM

MULTIPLIER CORE

CANCELLATION

X-DISTORTION

Y-DISTORTION

V-I

AD811

data sheet.

Figure 1.

AD834

AMPLIFIER

CURRENT

–V

(W)

8.5mA

±4mA

www.analog.com

AD834

Related parts for AD834JRZ-RL

AD834JRZ-RL Summary of contents

Page 1

FEATURES DC to >500 MHz operation Differential ±1 V full-scale inputs Differential ±4 mA full-scale output current Low distortion (≤0.05% for 0 dBm input) Supply voltages from ± ±9 V Low power (280 mW typical ...

Page 2

AD834 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Product Highlights ....................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Absolute Maximum Ratings ............................................................ 5 Thermal Characteristics .............................................................. 5 Chip ...

Page 3

SPECIFICATIONS T = 25°C and ±V = ±5 V, unless otherwise noted; dBm assumes 50 Ω load. Specifications in boldface are tested on all production units final electrical test. Results from those tests are used to calculate ...

Page 4

AD834 Parameters POWER SUPPLIES Operating Range 6 Quiescent Current +V S – Error is defined as the maximum deviation from the ideal output, and expressed as a percentage of the full-scale output. See Figure 16. 2 Both supplies ...

Page 5

ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Supply Voltage (+V to − Internal Power Dissipation Input Voltages (X1, X2, Y1, Y2) Operating Temperature Ranges Commercial, AD834J Only Industrial, AD834A Only Military AD834S/883B Only Storage Temperature Range (Q) Storage ...

Page 6

AD834 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 4. Pin Function Descriptions Pin No. Mnemonic − AD834 TOP ...

Page 7

TYPICAL PERFORMANCE CHARACTERISTICS 1000 800 600 400 200 100 FREQUENCY (MHz) Figure 4. Mean-Square Output vs. Frequency 0 –10 –20 –30 –40 –50 X FEEDTHROUGH –60 –70 Y FEEDTHROUGH – FREQUENCY ...

Page 8

AD834 TEST CIRCUITS SMA FROM HP8656A SIGNAL GENERATOR WAVETEK 2500A SIGNAL GENERATOR HP3362A LOW-PASS SIGNAL GENERATOR FILTER A/B SWITCH A B CH1 X W1 HP54121A AD834 SAMPLING CH2 HEADS Y W2 DATA PRECISION 8200 VOLTAGE CALIBRATOR Figure 7. Test Configuration ...

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AD834JRZ-RL datasheet download

AD834JRZ-RL Analog Devices Inc, AD834JRZ-RL Datasheet

AD834JRZ-RL

Specifications of AD834JRZ-RL

Related parts for AD834JRZ-RL

AD834JRZ-RL Summary of contents

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