OPA188_15 Datasheet, PDF (1/34 Pages) Texas Instruments – Precision, Low-Noise, Rail-to-Rail Output, 36-V, Zero-Drift Operational Amplifiers

OPA188
www.ti.com
SBOS642A – MARCH 2013 – REVISED MARCH 2013
Precision, Low-Noise, Rail-to-Rail Output,
36-V, Zero-Drift Operational Amplifiers
Check for Samples: OPA188
FEATURES
1
•2345 Low Offset Voltage: 25 μV (max)
• Zero-Drift: 0.03 μV/°C
• Low Noise: 8.8 nV/√Hz
– 0.1-Hz to 10-Hz Noise: 0.25 µV_PP
• Excellent DC Precision:
– PSRR: 142 dB
– CMRR: 146 dB
– Open-Loop Gain: 136 dB
• Gain Bandwidth: 2 MHz
• Quiescent Current: 510 μA (max)
• Wide Supply Range: ±2 V to ±18 V
• Rail-to-Rail Output
• Input Includes Negative Rail
• RFI Filtered Inputs
• MicroSIZE Packages
APPLICATIONS
• Bridge Amplifiers
• Strain Gauges
• Transducer Applications
• Temperature Measurement
• Electronic Scales
• Medical Instrumentation
• Resistance Temperature Detectors
DESCRIPTION
The OPA188 operational amplifier uses TI proprietary
auto-zeroing techniques to provide low offset voltage
(25 μV, max), 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 single version is available in the MicroSIZE
SOT23-5, MSOP-8, and SO-8 packages. All versions
are specified for operation from –40°C to +125°C.
145
OPA188 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
Zero-Drift Amplifier Portfolio
VERSION
PRODUCT
OPA188 (4 V to 36 V)
OFFSET VOLTAGE
(µV, max)
±25
OFFSET VOLTAGE
DRIFT (µV/°C, max)
±0.085
BANDWIDTH (MHz)
2
INPUT VOLTAGE NOISE
(µV_PP, f = 0.1 Hz to 10 Hz)
0.25
OPA333 (5 V)
±10
±0.05
0.35
1.1
Single
OPA378 (5 V)
±50
±0.25
0.9
0.4
OPA735 (12 V)
±5
±0.05
1.6
2.5
OPA2188 (4 V to 36 V)
±25
±0.085
2
0.25
OPA2333 (5 V)
±10
±0.05
0.35
1.1
Dual
OPA2378 (5 V)
±50
±0.25
0.9
0.4
OPA2735 (12 V)
±5
±0.05
1.6
2.5
OPA4188 (4 V to 36 V)
±25
±0.085
2
0.25
Quad
OPA4330 (5 V)
±50
±0.25
0.35
1.1
1
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2013, Texas Instruments Incorporated