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AD630J PDF预览

AD630J

更新时间: 2024-02-15 05:46:15
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
8页 289K
描述
Balanced Modulator/Demodulator

AD630J 技术参数

是否Rohs认证:不符合生命周期:Obsolete
零件包装代码:QLCC包装说明:CERAMIC, LCC-20
针数:20Reach Compliance Code:not_compliant
ECCN代码:5A991.AHTS代码:8542.39.00.01
风险等级:5.02Is Samacsys:N
商用集成电路类型:CONSUMER CIRCUITJESD-30 代码:S-CQCC-N20
JESD-609代码:e0长度:8.89 mm
端子数量:20最高工作温度:125 °C
最低工作温度:-55 °C封装主体材料:CERAMIC, METAL-SEALED COFIRED
封装代码:QCCN封装形状:SQUARE
封装形式:CHIP CARRIER峰值回流温度(摄氏度):220
认证状态:Not Qualified座面最大高度:2.54 mm
最大压摆率:5 mA最大供电电压 (Vsup):16.5 V
最小供电电压 (Vsup):5 V表面贴装:YES
温度等级:MILITARY端子面层:Tin/Lead (Sn/Pb)
端子形式:NO LEAD端子节距:1.27 mm
端子位置:QUAD处于峰值回流温度下的最长时间:30
宽度:8.89 mmBase Number Matches:1

AD630J 数据手册

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a
Balanced Modulator/Demodulator  
AD630  
FUNCTIONAL BLOCK DIAGRAM  
FEATURES  
Recovers Signal from +100 dB Noise  
2 MHz Channel Bandwidth  
45 V/s Slew Rate  
CM OFF  
ADJ  
6
CM OFF DIFF OFF  
DIFF OFF  
ADJ  
ADJ  
5
ADJ  
4
3
2.5k  
–120 dB Crosstalk @ 1 kHz  
1
R
A
AD630  
IN  
AMP A  
AMP B  
Pin Programmable Closed Loop Gains of ؎1 and ؎2  
0.05% Closed Loop Gain Accuracy and Match  
100 V Channel Offset Voltage (AD630BD)  
350 kHz Full Power Bandwidth  
Chips Available  
2
12  
11  
CHA+  
CHA–  
COMP  
20  
+V  
S
A
B
2.5k⍀  
R
B
17  
IN  
13  
V
OUT  
10k⍀  
CHB+ 18  
CHB– 19  
10k⍀  
–V  
14  
15  
R
B
F
R
R
5k⍀  
16  
7
A
PRODUCT DESCRIPTION  
CHANNEL  
STATUS  
B/A  
COMP  
The AD630 is a high precision balanced modulator which com-  
bines a flexible commutating architecture with the accuracy and  
temperature stability afforded by laser wafer trimmed thin-film  
resistors. Its signal processing applications include balanced  
modulation and demodulation, synchronous detection, phase  
detection, quadrature detection, phase sensitive detection,  
lock-in amplification and square wave multiplication. A network  
of on-board applications resistors provides precision closed loop  
gains of 1 and 2 with 0.05% accuracy (AD630B). These  
resistors may also be used to accurately configure multiplexer  
gains of +1, +2, +3 or +4. Alternatively, external feedback may  
be employed allowing the designer to implement his own high  
gain or complex switched feedback topologies.  
9
SEL B  
10  
SEL A  
8
–V  
S
PRODUCT HIGHLIGHTS  
1. The configuration of the AD630 makes it ideal for signal  
processing applications such as: balanced modulation and  
demodulation, lock-in amplification, phase detection, and  
square wave multiplication.  
2. The application flexibility of the AD630 makes it the best  
choice for many applications requiring precisely fixed gain,  
switched gain, multiplexing, integrating-switching functions,  
and high-speed precision amplification.  
The AD630 may be thought of as a precision op amp with two  
independent differential input stages and a precision comparator  
which is used to select the active front end. The rapid response  
time of this comparator coupled with the high slew rate and fast  
settling of the linear amplifiers minimize switching distortion. In  
addition, the AD630 has extremely low crosstalk between chan-  
nels of –100 dB @ 10 kHz.  
3. The 100 dB dynamic range of the AD630 exceeds that of any  
hybrid or IC balanced modulator/demodulator and is compa-  
rable to that of costly signal processing instruments.  
4. The op-amp format of the AD630 ensures easy implementa-  
tion of high gain or complex switched feedback functions.  
The application resistors facilitate the implementation of  
most common applications with no additional parts.  
The AD630 is intended for use in precision signal processing  
and instrumentation applications requiring wide dynamic range.  
When used as a synchronous demodulator in a lock-in amplifier  
configuration, it can recover a small signal from 100 dB of inter-  
fering noise (see lock-in amplifier application). Although optimized  
for operation up to 1 kHz, the circuit is useful at frequencies up  
to several hundred kilohertz.  
5. The AD630 can be used as a two channel multiplexer with  
gains of +1, +2, +3 or +4. The channel separation of  
100 dB @ 10 kHz approaches the limit which is achievable  
with an empty IC package.  
6. The AD630 has pin-strappable frequency compensation (no  
external capacitor required) for stable operation at unity gain  
without sacrificing dynamic performance at higher gains.  
Other features of the AD630 include pin programmable frequency  
compensation, optional input bias current compensation resis-  
tors, common-mode and differential-offset voltage adjustment,  
and a channel status output which indicates which of the two  
differential inputs is active. This device is now available to Stan-  
dard Military Drawing (DESC) numbers 5962-8980701RA and  
5962-89807012A.  
7. Laser trimming of comparator and amplifying channel offsets  
eliminates the need for external nulling in most cases.  
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  
© Analog Devices, Inc., 2000  

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