參數(shù)資料
型號(hào)： AD620AR-REEL
廠商： ANALOG DEVICES INC
元件分類： 運(yùn)動(dòng)控制電子
英文描述： Precision Instrumentation Amplifier
中文描述： INSTRUMENTATION AMPLIFIER, 150 uV OFFSET-MAX, 1 MHz BAND WIDTH, PDSO8
封裝： MS-021-AA, SOIC-8
文件頁(yè)數(shù)： 1/16頁(yè)
文件大小： 571K
代理商： AD620AR-REEL
CONNECTION DIAGRAM
8-Lead Plastic Mini-DIP (N), Cerdip (Q)
and SOIC (R) Packages
–IN
R
G
–V
S
+IN
R
G
+V
S
OUTPUT
REF
1
2
3
4
8
7
6
5
AD620
TOP VIEW
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
Low Cost, Low Power
Instrumentation Amplifier
AD620
FEATURES
EASY TO USE
Gain Set with One External Resistor
(Gain Range 1 to 1000)
Wide Power Supply Range (
6
2.3 V to
6
18 V)
Higher Performance than Three Op Amp IA Designs
Available in 8-Lead DIP and SOIC Packaging
Low Power, 1.3 mA max Supply Current
EXCELLENT DC PERFORMANCE (“B GRADE”)
50
m
V max, Input Offset Voltage
0.6
m
V/
8
C max, Input Offset Drift
1.0 nA max, Input Bias Current
100 dB min Common-Mode Rejection Ratio (G = 10)
LOW NOISE
9 nV/
√
Hz
, @ 1 kHz, Input Voltage Noise
0.28
m
V p-p Noise (0.1 Hz to 10 Hz)
EXCELLENT AC SPECIFICATIONS
120 kHz Bandwidth (G = 100)
15
m
s Settling Time to 0.01%
APPLICATIONS
Weigh Scales
ECG and Medical Instrumentation
Transducer Interface
Data Acquisition Systems
Industrial Process Controls
Battery Powered and Portable Equipment
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 1999
PRODUCT DESCRIPTION
The AD620 is a low cost, high accuracy instrumentation ampli-
fier that requires only one external resistor to set gains of 1 to
0
5
10
15
20
30,000
5,000
10,000
15,000
20,000
25,000
0
T
SUPPLY CURRENT – mA
AD620A
R
G
3 OP-AMP
IN-AMP
(3 OP-07s)
Figure 1. Three Op Amp IA Designs vs. AD620
SOURCE RESISTANCE –
V
100M
10k
1k
10M
1M
100k
10,000
0.1
100
1,000
10
1
R
(
m
V
TYPICAL STANDARD
BIPOLAR INPUT
IN-AMP
AD620 SUPER
b
ETA
BIPOLAR INPUT
IN-AMP
G = 100
Figure 2. Total Voltage Noise vs. Source Resistance
1000. Furthermore, the AD620 features 8-lead SOIC and DIP
packaging that is smaller than discrete designs, and offers lower
power (only 1.3 mA max supply current), making it a good fit
for battery powered, portable (or remote) applications.
The AD620, with its high accuracy of 40 ppm maximum
nonlinearity, low offset voltage of 50
μ
V max and offset drift of
0.6
μ
V/
°
C max, is ideal for use in precision data acquisition
systems, such as weigh scales and transducer interfaces. Fur-
thermore, the low noise, low input bias current, and low power
of the AD620 make it well suited for medical applications such
as ECG and noninvasive blood pressure monitors.
The low input bias current of 1.0 nA max is made possible with
the use of Super
β
eta processing in the input stage. The AD620
works well as a preamplifier due to its low input voltage noise of
9 nV/
√
Hz
at 1 kHz, 0.28
μ
V p-p in the 0.1 Hz to 10 Hz band,
0.1 pA/
√
Hz
input current noise. Also, the AD620 is well suited
for multiplexed applications with its settling time of 15
μ
s to
0.01% and its cost is low enough to enable designs with one in-
amp per channel.
相關(guān)PDF資料
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AD620ARZ-REEL7-MOOG 制造商:Analog Devices 功能描述:
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