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ADA4177-2ARMZ-R7 Arkusz danych(PDF) 1 Page - Analog Devices

Numer części ADA4177-2ARMZ-R7
Szczegółowy opis  OVP and EMI Protected, Precision, Low Noise and Bias Current Op Amps
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Strona internetowa  http://www.analog.com
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ADA4177-2ARMZ-R7 Arkusz danych(HTML) 1 Page - Analog Devices

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OVP and EMI Protected, Precision,
Low Noise and Bias Current Op Amps
Data Sheet
ADA4177-1/ADA4177-2/ADA4177-4
FEATURES
Low offset voltage: 60 µV maximum at 25°C (8-lead and
14-lead SOIC)
Low offset voltage drift: 1 µV/°C maximum (8-lead and
14-lead SOIC)
Low input bias current: 1 nA maximum at 25°C
Low voltage noise density: 8 nV/√Hz typical at 1 kHz
Large signal voltage gain (A
VO): 100 dB minimum over full
supply voltage and operating temperature
Input overvoltage protection to 32 V above and below the
supply voltage rail
Integrated EMI filter
70 dB typical rejection at 1000 MHz
90 dB typical rejection at 2400 MHz
Rail-to-rail output swing
Low supply current: 500 µA typical per amplifier
Wide bandwidth
Gain bandwidth product (A
V = +100): 3.5 MHz typical
Unity-gain crossover (A
V = +1): 3.5 MHz typical
−3 dB bandwidth (A
V = +1): 6 MHz typical
Dual-supply operation
Specified at ±5 V to ±15 V, operates over ±2.5 V to ±18 V
Unity-gain stable
No phase reversal
APPLICATIONS
Wireless base station control circuits
Optical network control circuits
Instrumentation
Sensors and controls
Thermocouples, resistor thermal detectors (RTDs), strain
gages, shunt current measurements
Precision filters
GENERAL DESCRIPTION
The ADA4177-1 single channel, ADA4177-2 dual channel, and
ADA4177-4 quad channel amplifiers feature low offset voltage
(2 µV typical) and drift (1 µV/°C maximum), low input bias
current, low noise, and low current consumption (500 µA
typical). Outputs are stable with capacitive loads of more than
1000 pF with no external compensation.
The inputs of the ADA4177-1, ADA4177-2, and ADA4177-4 set a
new standard in precision amplifier robustness, providing input
protection against signal excursions 32 V beyond either supply, as
well as 70 dB of rejection for electromagnetic interference (EMI) at
1000 MHz.
PIN CONNECTION DIAGRAM
Figure 1. ADA4177-2
Applications for this amplifier include sensor signal conditioning
(such as thermocouples, RTDs, and strain gages), process control
front-end amplifiers, and precision diode power measurement in
optical and wireless transmission systems.
The ADA4177-2 and ADA4177-4 operate over the −40°C to
+125°C industrial temperature range. The ADA4177-1 and the
ADA4177-2 are available in an 8-lead SOIC package and an 8-lead
MSOP package. The ADA4177-4 is available in a 14-lead TSSOP
and a 14-lead SOIC package.
Figure 2. Overvoltage Current Limiting, Voltage Follower Configuration
Table 1. Evolution of Protected Input Op Amps by Generation1
Gen. 1,
OVP
(10 V)
Gen. 2,
OVP (25 V)
Gen. 3,
OVP (32 V)
Gen. 4
EMI Filters
Gen. 5, OVP
(32 V) + EMI
OP191
ADA4091-2
ADA4096-2
AD8657
ADA4177-1
OP291
ADA4091-4
ADA4096-4
AD8659
ADA4177-2
OP491
ADA4092-4
AD8546
ADA4177-4
AD8548
ADA4661-2
ADA4666-2
1 Gen. stands for Generation.
OUT A 1
–IN A
2
+IN A
3
V–
4
V+
8
OUT B
7
–IN B
6
+IN B
5
ADA4177-2
TOP VIEW
(Not to Scale)
12
–10
–8
–6
–4
–2
0
2
4
6
8
10
VIN (V)
–50
50
30
10
–10
–30
VSY = ±15V
Rev. C
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.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
©2014–2015 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com


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