OPA4188 Amplifiers Datasheet

OPA4188 Datasheet, PDF, Equivalent


Part Number

OPA4188

Description

Zero-Drift Operational Amplifiers

Manufacture

etcTI

Total Page 30 Pages
Datasheet
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OPA4188
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OPA4188
SBOS641D – JUNE 2012 – REVISED SEPTEMBER 2016
OPA4188 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)
• Zero-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 OPA4188 operational amplifier uses TI
proprietary auto-zeroing techniques to provide low
offset voltage (25 μV, maximum), and near zero-drift
over time and temperature. These miniature, high-
precision, low quiescent current amplifiers offer high
input impedance and rail-to-rail output swing within
15 mV of the rails, making them ideal for industrial
applications. 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 quad version is available in 14-pin SOIC and 14-
pin TSSOP packages. All versions are specified for
operation from –40°C to +125°C.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
OPA4188
SOIC (14)
TSSOP (14)
8.65 mm × 3.91 mm
5.00 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Zero-Drift Architecture Improves Performance
145
125
105
85
65
45 OPA4188 Zero-Drift Architecture
Precision Laser Trim Architecture
25
5
-55 -35 -15
5 25 45 65 85 105 125 150
Temperature (°C)
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.

OPA4188
OPA4188
SBOS641D – JUNE 2012 – REVISED SEPTEMBER 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 ......................... 4
7 Specifications......................................................... 5
7.1 Absolute Maximum Ratings ...................................... 5
7.2 ESD Ratings.............................................................. 5
7.3 Recommended Operating Conditions....................... 5
7.4 Thermal Information .................................................. 5
7.5 Electrical Characteristics: High-Voltage Operation, VS
= ±4 V to ±18 V (VS = 8 V to 36 V) ............................ 6
7.6 Electrical Characteristics: Low-Voltage Operation, VS
= ±2 V to < ±4 V (VS = +4 V to < +8 V) ..................... 7
7.7 Typical Characteristics .............................................. 9
8 Detailed Description ............................................ 17
8.1 Overview ................................................................. 17
8.2 Functional Block Diagram ....................................... 17
8.3 Feature Description................................................. 17
8.4 Device Functional Modes........................................ 19
9 Applications and Implementation ...................... 20
9.1 Application Information............................................ 20
9.2 Typical Applications ................................................ 20
10 Power Supply Recommendations ..................... 23
11 Layout................................................................... 23
11.1 Layout Guidelines ................................................. 23
11.2 Layout Example .................................................... 24
12 Device and Documentation Support ................. 25
12.1 Documentation Support ....................................... 25
12.2 Trademarks ........................................................... 25
12.3 Electrostatic Discharge Caution ............................ 26
12.4 Glossary ................................................................ 26
13 Mechanical, Packaging, and Orderable
Information ........................................................... 26
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision C (April 2015) to Revision D
Page
• Changed high supply over-temperature input bias current limit in High-Voltage Operation Electrical Characteristics
table ....................................................................................................................................................................................... 6
• Changed high supply noise units in High-Operating Voltage Electrical Characteristics table .............................................. 6
• Changed high supply room-temperature quiescent current limit in High-Voltage Operation Electrical Characteristics
table ....................................................................................................................................................................................... 7
• Changed high supply over-temperature quiescent current limit in High-Voltage Operation Electrical Characteristics
table ....................................................................................................................................................................................... 7
• Changed low supply over-temperature input bias current limit in Low-Voltage Operation Electrical Characteristics
table ....................................................................................................................................................................................... 7
• Changed low supply noise units for input voltage noise density parameter in Low-Voltage Operation Electrical
Characteristics table ............................................................................................................................................................... 7
• Changed low supply room-temperature quiescent current limit in Low-Voltage Operation Electrical Characteristics table .. 8
• Changed low supply over-temperature quiescent current limit in Low-Voltage Operation Electrical Characteristics table ... 8
Changes from Revision A (September 2012) to Revision B
Page
• Changed maximum specification of second Input Bias Current, IB parameter row in High-Voltage Operation
Electrical Characteristics table ............................................................................................................................................... 6
• Changed maximum specification of second Input Bias Current(IB) parameter in Low-Voltage Electrical
Characteristics table ............................................................................................................................................................... 7
• Changed typical specifications for Input impedance (Common-mode) parameter in Low-Voltage Electrical
Characteristics table ............................................................................................................................................................... 7
Changes from Original (June2012) to Revision A
Page
• Changed second to last Applications bullet............................................................................................................................ 1
2 Submit Documentation Feedback
Product Folder Links: OPA4188
Copyright © 2012–2016, Texas Instruments Incorporated


Features Product Folder Sample & Buy Technical Documents Tools & Software Support & Community OPA4188 SBOS641D – JUNE 20 12 – REVISED SEPTEMBER 2016 OPA4188 0 .03-μV/°C Drift, Low-Noise, Rail-to-R ail Output, 36-V, Zero-Drift Operationa l Amplifiers 1 Features •1 Low Offse t Voltage: 25 μV (Maximum) • Zero-Dr ift: 0.03 μV/°C • Low Noise: 8.8 nV /√Hz 0.1-Hz to 10-Hz Noise: 0.25 µVP P • Excellent DC Precision: PSRR: 142 dB CMRR: 146 dB Open-Loop Gain: 136 dB • Gain Bandwidth: 2 MHz • Quiescen t Current: 475 μA (Maximum) • Wide S upply Range: ±2 V to ±18 V • Rail-t o-Rail Output: Input Includes Negative Rail • RFI Filtered Inputs • MicroS IZE Packages 2 Applications • Bridge Amplifiers • Strain Gauges • Test E quipment • Transducer Applications Temperature Measurement • Electroni c Scales • Medical Instrumentation Resistance Temperature Detectors • Precision Active Filters 3 Description The OPA4188 operational amplifier uses TI proprietary auto-zeroing techniques to provide low offset voltage (25 μV,.
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