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ADA4177-4 Datasheet

Low Noise and Bias Current Op Amps

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ADA4177-4 pdf
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


Analog Devices Semiconductor Electronic Components Datasheet

ADA4177-4 Datasheet

Low Noise and Bias Current Op Amps

No Preview Available !

ADA4177-4 pdf
ADA4177-1/ADA4177-2/ADA4177-4
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Pin Connection Diagram ................................................................ 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Electrical Characteristics, ±5 V .................................................. 3
Electrical Characteristics, ±15 V ................................................ 5
Absolute Maximum Ratings ....................................................... 7
Maximum Power Dissipation ..................................................... 7
Thermal Resistance ...................................................................... 7
ESD Caution.................................................................................. 7
Pin Configurations and Function Descriptions ........................... 8
Typical Performance Characteristics ........................................... 11
REVISION HISTORY
4/15—Rev. B to Rev. C
Added ADA4177-1.............................................................Universal
Deleted Figure 2; Renumbered Sequentially................................. 1
Change to Table 1 ............................................................................. 1
Added Figure 5, Figure 6, and Table 7; Renumbered
Sequentially ....................................................................................... 9
Changes to Figure 16, Figure 17, Figure 19, and Figure 20 ...... 12
Changes to Figure 26...................................................................... 14
Changes to Figure 34, Figure 35, Figure 37, and Figure 39 ...... 16
Changes to Figure 46, Figure 47, Figure 49, and Figure 50 ...... 17
Changes to Figure 59 and Figure 62............................................. 19
Changes to Figure 63, Figure 65, Figure 66, and Figure 68 ...... 20
Changes to Figure 69 and Figure 72............................................. 21
Changes to Figure 75 and Figure 78............................................. 22
Added Figure 77 and Figure 80 .................................................... 22
Added Figure 81 to Figure 83 ....................................................... 23
Changes to Theory of Operation Section.................................... 24
Changes to Input Protection Circuit Section and Limiting
Overvoltage Current Out of the Positive Supply Pin Section... 26
Changes to Using the ADA4177-1/ADA4177-2/ADA4177-4 as
a Comparator Section .................................................................... 27
Changes to Ordering Guide .......................................................... 31
1/15—Rev. A to Rev. B
Added ADA4177-4.............................................................Universal
Reorganized Layout............................................................Universal
Data Sheet
Theory of Operation ...................................................................... 24
Applications Information .............................................................. 25
Active Overvoltage Protection ................................................. 25
Limiting Overvoltage Current Out of the Positive Supply Pin.. 26
EMI Protection ........................................................................... 27
Self Heating ................................................................................. 27
Using the ADA4177-1/ADA4177-2/ADA4177-4 as a
Comparator ................................................................................. 27
Output Phase Reversal............................................................... 28
Proper Printed Circuit Board (PCB) Layout .......................... 28
Outline Dimensions ....................................................................... 29
Ordering Guide .......................................................................... 31
Added Figure 2; Renumbered Sequentially ...................................1
Changes to Features and General Description Section ................1
Changes to Table 2.............................................................................3
Changes to Table 3.............................................................................5
Changes to Table 5.............................................................................7
Added Figure 6, Figure 7, and Table 7; Renumbered
Sequentially ................................................................................................ 9
Added Figure 10 and Figure 13.............................................................10
Replaced Figure 15 and Figure 18.........................................................11
Added Figure 14, Figure 16, Figure 17,and Figure 19.......................11
Changes to Figure 20, Figure 21, Figure 23, and Figure 24..............12
Changes to Figure 32 and Figure 33.....................................................14
Changes to Figure 38 and Figure 41.....................................................15
Changes to Figure 58 and Figure 61.....................................................18
Changes to Figure 62, Figure 65, and Figure 66.................................19
Changes to Figure 69 and Figure 72.....................................................20
Change to Figure 87 Caption........................................................ 25
Updated Outline Dimensions....................................................... 27
Added Figure 93 and Figure 94 .................................................... 28
Changes to Ordering Guide .......................................................... 29
10/14—Rev. 0 to Rev. A
Changes to Large Signal Voltage Gain Parameter, Test
Conditions/Comments Column, Table 3 .......................................5
10/14—Revision 0: Initial Version
Rev. C | Page 2 of 31


Part Number ADA4177-4
Description Low Noise and Bias Current Op Amps
Maker Analog Devices
Total Page 30 Pages
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