AD834

更新时间： 2024-02-05 03:29:38

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
8页	260K
描述
500 MHz Four-Quadrant Multiplier

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AD834 技术参数

是否无铅：	含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	SOIC
包装说明：	SOP, SOP8,.25	针数：	8
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.43
模拟集成电路 - 其他类型：	ANALOG MULTIPLIER OR DIVIDER	标称带宽：	500 MHz
JESD-30 代码：	R-PDSO-G8	JESD-609代码：	e3
长度：	4.9 mm	湿度敏感等级：	1
负电源电压最大值（Vsup）：	-9 V	负电源电压最小值（Vsup）：	-4 V
标称负供电电压 (Vsup)：	-5 V	最大负输入电压：	-1 V
功能数量：	1	端子数量：	8
最高工作温度：	70 °C	最低工作温度：
封装主体材料：	PLASTIC/EPOXY	封装代码：	SOP
封装等效代码：	SOP8,.25	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	峰值回流温度（摄氏度）：	260
最大正输入电压：	1 V	电源：	+-5 V
认证状态：	Not Qualified	座面最大高度：	1.75 mm
子类别：	Analog Computational Functions	最大供电电流 (Isup)：	35 mA
最大供电电压 (Vsup)：	9 V	最小供电电压 (Vsup)：	4 V
标称供电电压 (Vsup)：	5 V	表面贴装：	YES
技术：	BIPOLAR	温度等级：	COMMERCIAL
端子面层：	Matte Tin (Sn)	端子形式：	GULL WING
端子节距：	1.27 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	30	宽度：	3.9 mm
Base Number Matches：	1

AD834 数据手册

500 MHz Four-Quadrant Multiplier

AD834

FUNCTIONAL BLOCK DIAGRAM

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_S= ؎5 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

(W)

PRODUCT DESCRIPTION

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

multiplier intended for use in high frequency applications, hav-

ing a transconductance bandwidth (R_L= 50 Ω) in excess of

500 MHz from either of the differential voltage inputs. In multi-

plier 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 bandgap reference genera-

tor and other design features.

Two application notes featuring the AD834 (AN-212 and

AN-216) can now be obtained by calling 1-800-ANALOG-D.

For additional applications circuits consult the AD811 data sheet.

PRODUCT HIGHLIGHTS

l. The AD834 combines high static accuracy (low input and

output offsets and accurate scale factor) with very high band-

width. As a four-quadrant multiplier or squarer, the response

extends from dc to an upper frequency limited mainly by

packaging and external board layout considerations. A large

signal bandwidth of over 500 MHz is attainable under opti-

mum conditions.

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 ex-

ternal 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.

2. The AD834 can be 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.

3. 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).

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 AD834s to be

summed with precisely equal weighting, independent of the

accuracy of the load circuit.

4. The AD834 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 AD834J is specified for use over the commercial tempera-

ture range of 0°C to +70°C and is available in an 8-lead DIP

package and an 8-lead plastic SOIC package. AD834A is avail-

able in cerdip and 8-lead plastic SOIC packages for operation

over the industrial temperature range of –40°C to +85°C. The

AD834S/883B is specified for operation over the military tem-

perature range of –55°C to +125°C and is available in the 8-lead

cerdip package. S-Grade chips are also available.

5. The nonloading, high impedance, differential inputs simplify

the application of the AD834.

REV. C

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.

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

Tel: 781/329-4700

Fax: 781/326-8703

World Wide Web Site: http://www.analog.com

12 3 4 5 6 7 8

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