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PDF ADA4177-1 Data sheet ( Hoja de datos )
| Número de pieza | ADA4177-1 | |
| Descripción | Low Noise and Bias Current Op Amps | |
| Fabricantes | Analog Devices | |
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Data Sheet
OVP and EMI Protected, Precision,
Low Noise and Bias Current Op Amps
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 (AVO): 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 (AV = +100): 3.5 MHz typical
Unity-gain crossover (AV = +1): 3.5 MHz typical
−3 dB bandwidth (AV = +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.
Rev. C
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor 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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
PIN CONNECTION DIAGRAM
OUT A 1
–IN A 2
+IN A 3
V– 4
ADA4177-2
TOP VIEW
(Not to Scale)
8 V+
7 OUT B
6 –IN B
5 +IN B
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.
12
10
8
6 VSY = ±15V
4
2
0
–2
–4
–6
–8
–10
–50 –30 –10
10
30
50
VIN (V)
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
OP291
OP491
ADA4091-2
ADA4091-4
ADA4092-4
ADA4096-2
ADA4096-4
AD8657
AD8659
AD8546
AD8548
ADA4661-2
ADA4666-2
ADA4177-1
ADA4177-2
ADA4177-4
1 Gen. stands for Generation.
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
1 page  
Data Sheet
ADA4177-1/ADA4177-2/ADA4177-4
ELECTRICAL CHARACTERISTICS, ±15 V
VSY = ±15 V, VCM = 0 V, TA = 25°C, unless otherwise noted.
Table 3.
Parameter
INPUT CHARACTERISTICS
Offset Voltage
8-Lead SOIC and 14-Lead SOIC
8-Lead MSOP
14-Lead TSSOP
Offset Voltage Matching
8-Lead SOIC
8-Lead MSOP
Offset Voltage Drift
8-Lead SOIC and 14-Lead SOIC
8-Lead MSOP and 14-Lead TSSOP
Input Bias Current
Input Offset Current
Input Voltage Range
Overvoltage Current Limit1
Common-Mode Rejection Ratio
Large Signal Voltage Gain
Input Capacitance
Input Resistance
OUTPUT CHARACTERISTICS
Output Voltage
High
Low
Output Current
Short-Circuit Current
Sourcing
Sinking
Closed-Loop Output Impedance
Symbol Test Conditions/Comments
VOS
−40°C < TA < +125°C
−40°C < TA < +125°C
−40°C < TA < +125°C
ΔVOS/ΔT −40°C < TA < +125°C
IB
IOS
IVR
IOVP
CMRR
AVO
CINDM
CINCM
RDIFF
RCM
−40°C < TA < +125°C
−40°C < TA < +125°C
15 V < VCM < 47 V
−47 V < VCM < −15 V
VCM = −13.5 V to +13.5 V
−40°C < TA < +125°C
RL = 2 kΩ, VOUT = −14.2 V to +14.2 V
−40°C < TA < +125°C
RL = 10 kΩ, VOUT = −14.5 V to +14.5 V
−40°C < TA < +125°C
Differential mode
Common mode
Differential mode
Common mode
VOH ILOAD = 1 mA
−40°C < TA < +125°C
ILOAD = 7 mA
−40°C < TA < +125°C
VOL ILOAD = 1 mA
−40°C < TA < +125°C
ILOAD = 7 mA
−40°C < TA < +125°C
IOUT VDROPOUT < 1 V
ISC TA = 25°C
ZOUT f = 1 kHz, AV = +1
Min Typ Max Unit
2 60 µV
120 µV
3 120 µV
200 µV
3 150 µV
300 µV
40 µV
110 µV
−1
−2
−0.75
−1.5
−13.5
128
125
110
103
118
110
−0.3
0.1
12
10
130
114
120
1
1
4
130
1
1.6
+1
+2
+0.75
+1.5
+13.5
µV/°C
µV/°C
nA
nA
nA
nA
V
mA
mA
dB
dB
dB
dB
dB
dB
pF
pF
MΩ
GΩ
14.95
14.90
14.80
14.75
25
−14.95
−14.90
−14.80
−14.75
V
V
V
V
V
V
V
V
mA
53 mA
65 mA
0.08 Ω
Rev. C | Page 5 of 31
5 Page 
Data Sheet
TYPICAL PERFORMANCE CHARACTERISTICS
Ambient temperature (TA) = 25°C unless otherwise noted.
80
VSY = ±5V
SOIC
70
60
50
40
30
20
10
0
VOS (µV)
Figure 9. Input Offset Voltage (VOS) Distribution, VSY = ±5 V, 8-Lead SOIC
60
VSY = ±5V
MSOP
50
40
30
20
10
0
VOS (µV)
Figure 10. Input Offset Voltage (VOS) Distribution, VSY = ±5 V, 8-Lead MSOP
300
VSY = ±5V
SOIC
250
200
150
100
50
0
VOS (µV)
Figure 11. Input Offset Voltage (VOS) Distribution, VSY = ±5 V,
14-Lead SOIC
ADA4177-1/ADA4177-2/ADA4177-4
90
VSY = ±15V
80 SOIC
70
60
50
40
30
20
10
0
VOS (µV)
Figure 12. Input Offset Voltage (VOS) Distribution, VSY = ±15 V,
8-Lead SOIC
60
VSY = ±15V
MSOP
50
40
30
20
10
0
VOS (µV)
Figure 13. Input Offset Voltage (VOS) Distribution, VSY = ±15 V,
8-Lead MSOP
300
VSY = ±15V
SOIC
250
200
150
100
50
0
VOS (µV)
Figure 14. Input Offset Voltage (VOS) Distribution, VSY = ±15 V,
14-Lead SOIC
Rev. C | Page 11 of 31
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet ADA4177-1.PDF ] | |
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