Operational Amplifiers. OPA2188 Datasheet

OPA2188 Amplifiers. Datasheet pdf. Equivalent

Part OPA2188
Description Zero-Drift Operational Amplifiers
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OPA2188
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OPA2188
SBOS525C – AUGUST 2011 – REVISED JUNE 2016
OPA2188 0.03-μV/°C Drift, Low-Noise, Rail-to-Rail Output,
36-V, Zero-Drift Operational Amplifiers
1 Features
1 Low Offset Voltage: 25 μV (Maximum)
• Zerø-Drift: 0.03 μV/°C
• Low Noise: 8.8 nV/Hz
0.1-Hz to 10-Hz Noise: 0.25 µVPP
• Excellent DC Precision:
PSRR: 142 dB
CMRR: 146 dB
Open-Loop Gain: 136 dB
• Gain Bandwidth: 2 MHz
• Quiescent Current: 475 μA (Maximum)
• Wide Supply Range: ±2 V to ±18 V
• Rail-to-Rail Output:
Input Includes Negative Rail
• RFI Filtered Inputs
MicroSIZE Packages
2 Applications
• Bridge Amplifiers
• Strain Gauges
• Test Equipment
• Transducer Applications
• Temperature Measurement
• Electronic Scales
• Medical Instrumentation
• Resistance Temperature Detectors
• Precision Active Filters
3 Description
The OPA2188 operational amplifier uses TI
proprietary auto-zeroing techniques to provide low
offset voltage (25 μV, maximum), and near zero-drift
over time and temperature. This miniature, high-
precision, low quiescent current amplifier offers high
input impedance and rail-to-rail output swing within 15
mV of the rails. The input common-mode range
includes the negative rail. Either single or dual
supplies can be used in the range of 4 V to 36 V (±2
V to ±18 V).
The OPA2188 device is available in MSOP-8 and
SO-8 packages. The device is specified for operation
from –40°C to +105°C.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
OPA2188
SOIC (8)
VSSOP (8)
4.90 mm × 3.91 mm
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Offset Voltage vs Temperature
145
OPA2188 Zero-Drift Architecture
125 Precision Laser Trim Architecture
105
85
65
45
25
5
-55 -35 -15
5 25 45 65
Temperature (°C)
85 105 125
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.



OPA2188
OPA2188
SBOS525C – AUGUST 2011 – REVISED JUNE 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Zero-Drift Amplifier Portfolio ................................ 3
6 Pin Configuration and Functions ......................... 3
7 Specifications......................................................... 4
7.1 Absolute Maximum Ratings ...................................... 4
7.2 ESD Ratings.............................................................. 4
7.3 Recommended Operating Conditions....................... 4
7.4 Thermal Information .................................................. 4
7.5 Electrical Characteristics: High-Voltage Operation, VS
= ±4 V to ±18 V (VS = 8 V to 36 V) ............................ 5
7.6 Electrical Characteristics: Low-Voltage Operation, VS
= ±2 V to < ±4 V (VS = +4 V to < +8 V) ..................... 7
7.7 Typical Characteristics: Table of Graphs .................. 9
7.8 Typical Characteristics ............................................ 10
8 Detailed Description ............................................ 17
8.1 Overview ................................................................. 17
8.2 Functional Block Diagram ....................................... 17
8.3 Feature Description................................................. 18
8.4 Device Functional Modes........................................ 20
9 Application and Implementation ........................ 21
9.1 Application Information............................................ 21
9.2 Typical Applications ................................................ 21
9.3 System Examples ................................................... 22
10 Power Supply Recommendations ..................... 23
11 Layout................................................................... 25
11.1 Layout Guidelines ................................................. 25
11.2 Layout Example .................................................... 25
12 Device and Documentation Support ................. 26
12.1 Device Support .................................................... 26
12.2 Documentation Support ....................................... 27
12.3 Receiving Notification of Documentation Updates 27
12.4 Community Resource............................................ 27
12.5 Trademarks ........................................................... 27
12.6 Electrostatic Discharge Caution ............................ 27
12.7 Glossary ................................................................ 27
13 Mechanical, Packaging, and Orderable
Information ........................................................... 27
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision B (September 2012) to Revision C
Page
• Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation
section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and
Mechanical, Packaging, and Orderable Information section ................................................................................................. 1
• Changed Input Bias Current, IB and IOS parameters overtemperature maximum specification in Electrical
Characteristics: High-Voltage Operation table ....................................................................................................................... 5
• Changed Noise, Input voltage noise density parameter units in Electrical Characteristics: High-Voltage Operation table... 5
• Changed Power Supply, IQ parameter maximum specifications in Electrical Characteristics: High-Voltage Operation
table ....................................................................................................................................................................................... 6
• Changed Input Bias Current, IB and IOS parameters overtemperature maximum specification in Electrical
Characteristics: Low-Voltage Operation table ....................................................................................................................... 7
• Changed Noise, Input voltage noise density parameter units in Electrical Characteristics: Low-Voltage Operation
table ....................................................................................................................................................................................... 7
• Changed Power Supply, IQ parameter maximum specifications in Electrical Characteristics: Low-Voltage Operation
table ....................................................................................................................................................................................... 8
Changes from Revision A (June 2012) to Revision B
Page
• Changed second to last Applications bullet............................................................................................................................ 1
Changes from Original (August 2011) to Revision A
Page
• Deleted all references to OPA188 and OPA4188 throughout document ............................................................................... 1
• Updated document to current standards ................................................................................................................................ 1
• Changed document status to Production Data....................................................................................................................... 1
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