Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLinear ICsLinear IC - Op-amp Multi-purpose SOIC 14

145

125

105

Offset Voltage ( V)m

-55 -15 5 25 150

Temperature ( C)°

-35 45 65 85 105

OPA4188 Zero-Drift Architecture

Precision Laser Trim Architecture

125

OPA4188

www.ti.com

SBOS641B –JUNE 2012–REVISED MARCH 2013

0.03-μV/°C Drift, Low-Noise, Rail-to-Rail Output,

36-V, Zero-Drift OPERATIONAL AMPLIFIERS

Check for Samples: OPA4188

FEATURES

DESCRIPTION

The OPA4188 operational amplifier uses TI

• Low Offset Voltage: 25 μV (max)

proprietary auto-zeroing techniques to provide low

• Zero-Drift: 0.03 μV/°C

offset voltage (25 μV, max), and near zero-drift over

• Low Noise: 8.8 nV/√Hz

time and temperature. These miniature, high-

0.1-Hz to 10-Hz Noise: 0.25 µV

precision, low quiescent current amplifiers offer high

input impedance and rail-to-rail output swing within

• Excellent DC Precision:

15 mV of the rails. The input common-mode range

PSRR: 142 dB

includes the negative rail. Either single or dual

CMRR: 146 dB

supplies can be used in the range of +4.0 V to +36 V

Open-Loop Gain: 136 dB

(±2 V to ±18 V).

• Gain Bandwidth: 2 MHz

The quad version is available in SO-14 and TSSOP-

• Quiescent Current: 475 μA (max)

14 packages. All versions are specified for operation

• Wide Supply Range: ±2 V to ±18 V

from –40°C to +125°C.

• Rail-to-Rail Output:

Input Includes Negative Rail

• RFI Filtered Inputs

• MicroSIZE Packages

APPLICATIONS

• Bridge Amplifiers

• Strain Gauges

• Test Equipment

• Transducer Applications

• Temperature Measurement

• Electronic Scales

• Medical Instrumentation

• Resistance Temperature Detectors

• Precision Active Filters

Zero-Drift Amplifier Portfolio

OFFSET VOLTAGE DRIFT

VERSION PRODUCT OFFSET VOLTAGE (µV) (µV/°C) BANDWIDTH (MHz)

OPA188 (4 V to 36 V) 25 0.085 2

OPA333 (5 V) 10 0.05 0.35

Single

OPA378 (5 V) 50 0.25 0.9

OPA735 (12 V) 5 0.05 1.6

OPA2188 (4 V to 36 V) 25 0.085 2

OPA2333 (5 V) 10 0.05 0.35

Dual

OPA2378 (5 V) 50 0.25 0.9

OPA2735 (12 V) 5 0.05 1.6

OPA4188 (4 V to 36 V) 25 0.085 2

Quad

OPA4330 (5 V) 50 0.25 0.35

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2All trademarks are the property of their respective owners.

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.

Summary of content (28 pages)

PAGE 1
OPA4188 www.ti.com SBOS641B – JUNE 2012 – REVISED MARCH 2013 0.03-μV/°C Drift, Low-Noise, Rail-to-Rail Output, 36-V, Zero-Drift OPERATIONAL AMPLIFIERS Check for Samples: OPA4188 FEATURES DESCRIPTION 1 • • • • • • • The OPA4188 operational amplifier uses TI proprietary auto-zeroing techniques to provide low offset voltage (25 μV, max), and near zero-drift over time and temperature.
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OPA4188 SBOS641B – JUNE 2012 – REVISED MARCH 2013 www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure.
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OPA4188 www.ti.com SBOS641B – JUNE 2012 – REVISED MARCH 2013 ELECTRICAL CHARACTERISTICS: High-Voltage Operation, VS = ±4 V to ±18 V (VS = +8 V to +36 V) At TA = +25°C, RL = 10 kΩ connected to VS / 2, and VCOM = VOUT = VS / 2, unless otherwise noted. OPA4188 PARAMETER CONDITIONS MIN TYP MAX UNIT OFFSET VOLTAGE VOS dVOS/dT Input offset voltage TA = –40°C to +125°C VS = 4 V to 36 V, VCM = VS / 2 PSRR Power-supply rejection ratio 25 0.085 μV/°C 0.075 0.3 μV/V 0.
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OPA4188 SBOS641B – JUNE 2012 – REVISED MARCH 2013 www.ti.com ELECTRICAL CHARACTERISTICS: High-Voltage Operation, VS = ±4 V to ±18 V (VS = +8 V to +36 V) (continued) At TA = +25°C, RL = 10 kΩ connected to VS / 2, and VCOM = VOUT = VS / 2, unless otherwise noted.
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OPA4188 www.ti.com SBOS641B – JUNE 2012 – REVISED MARCH 2013 ELECTRICAL CHARACTERISTICS: Low-Voltage Operation, VS = ±2 V to < ±4 V (VS = +4 V to < +8 V) At TA = +25°C, RL = 10 kΩ connected to VS / 2, and VCOM = VOUT = VS / 2, unless otherwise noted. OPA4188 PARAMETER CONDITIONS MIN TYP MAX UNIT OFFSET VOLTAGE VOS dVOS/dT Input offset voltage TA = –40°C to +125°C VS = 4 V to 36 V, VCM = VS / 2 PSRR Power-supply rejection ratio 25 0.085 μV/°C 0.075 0.3 μV/V 0.
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OPA4188 SBOS641B – JUNE 2012 – REVISED MARCH 2013 www.ti.com ELECTRICAL CHARACTERISTICS: Low-Voltage Operation, VS = ±2 V to < ±4 V (VS = +4 V to < +8 V) (continued) At TA = +25°C, RL = 10 kΩ connected to VS / 2, and VCOM = VOUT = VS / 2, unless otherwise noted.
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OPA4188 www.ti.com SBOS641B – JUNE 2012 – REVISED MARCH 2013 TYPICAL CHARACTERISTICS Table 1.
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OPA4188 SBOS641B – JUNE 2012 – REVISED MARCH 2013 www.ti.com TYPICAL CHARACTERISTICS VS = ±18 V, VCM = VS / 2, RLOAD = 10 kΩ connected to VS / 2, and CL = 100 pF, unless otherwise noted. OFFSET VOLTAGE PRODUCTION DISTRIBUTION OFFSET VOLTAGE DRIFT DISTRIBUTION 40 10 2 5 0 0 0.01 Offset Voltage (mV) Offset Voltage Drift (mV/°C) Figure 1. 10 Figure 2.
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OPA4188 www.ti.com SBOS641B – JUNE 2012 – REVISED MARCH 2013 TYPICAL CHARACTERISTICS (continued) VS = ±18 V, VCM = VS / 2, RLOAD = 10 kΩ connected to VS / 2, and CL = 100 pF, unless otherwise noted. IB AND IOS vs COMMON-MODE VOLTAGE 500 INPUT BIAS CURRENT vs TEMPERATURE 4000 IB+ +IB 400 IB and IOS (pA) IOS Input Bias Current (pA) IOS 300 IB- 3000 -IB 200 100 0 -100 2000 1000 0 -1000 -200 -300 -2000 -20 -15 -10 -5 0 10 5 15 20 5 -55 -35 -15 VCM (V) 25 Figure 7.
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OPA4188 SBOS641B – JUNE 2012 – REVISED MARCH 2013 www.ti.com TYPICAL CHARACTERISTICS (continued) VS = ±18 V, VCM = VS / 2, RLOAD = 10 kΩ connected to VS / 2, and CL = 100 pF, unless otherwise noted. PSRR vs TEMPERATURE 0.1-Hz TO 10-Hz NOISE 5 Typical Units Shown VSUPPLY = ±2 V to ±18 V 0.8 0.6 0.4 50 nV/div Power-Supply Rejection Ratio (mV/V) 1 0.2 0 -0.2 -0.4 -0.6 -0.8 Peak-to-Peak Noise = 250 nV -1 -55 -35 -15 5 25 45 65 85 105 125 Time (1 s/div) 150 Temperature (°C) Figure 13.
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OPA4188 www.ti.com SBOS641B – JUNE 2012 – REVISED MARCH 2013 TYPICAL CHARACTERISTICS (continued) VS = ±18 V, VCM = VS / 2, RLOAD = 10 kΩ connected to VS / 2, and CL = 100 pF, unless otherwise noted. QUIESCENT CURRENT vs TEMPERATURE OPEN-LOOP GAIN AND PHASE vs FREQUENCY 120 VS = ±2 V 0.46 Gain Phase 135 100 Gain (dB) 0.44 0.42 0.4 80 0.38 40 0.36 20 0.34 0 0.32 90 60 45 −20 1 0.3 -55 -35 -15 5 25 45 65 85 105 125 Phase (°) VS = ±18 V 0.48 IQ (mA) 180 140 0.
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OPA4188 SBOS641B – JUNE 2012 – REVISED MARCH 2013 www.ti.com TYPICAL CHARACTERISTICS (continued) VS = ±18 V, VCM = VS / 2, RLOAD = 10 kΩ connected to VS / 2, and CL = 100 pF, unless otherwise noted. SMALL-SIGNAL OVERSHOOT vs CAPACITIVE LOAD (100-mV Output Step) NO PHASE REVERSAL 40 ROUT = 0 W 35 Device ROUT = 50 W 30 25 -18 V 37 VPP Sine Wave (±18.
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OPA4188 www.ti.com SBOS641B – JUNE 2012 – REVISED MARCH 2013 TYPICAL CHARACTERISTICS (continued) VS = ±18 V, VCM = VS / 2, RLOAD = 10 kΩ connected to VS / 2, and CL = 100 pF, unless otherwise noted. LARGE-SIGNAL STEP RESPONSE LARGE-SIGNAL STEP RESPONSE G = +1 RL = 10 kW CL = 10 pF 5 V/div 5 V/div G = -1 RL = 10 kW CL = 10 pF Time (50 ms/div) 10 Time (50 ms/div) Figure 31. Figure 32.
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OPA4188 SBOS641B – JUNE 2012 – REVISED MARCH 2013 www.ti.com TYPICAL CHARACTERISTICS (continued) VS = ±18 V, VCM = VS / 2, RLOAD = 10 kΩ connected to VS / 2, and CL = 100 pF, unless otherwise noted.
PAGE 15
OPA4188 www.ti.com SBOS641B – JUNE 2012 – REVISED MARCH 2013 APPLICATION INFORMATION The OPA4188 operational amplifier combines precision offset and drift with excellent overall performance, making it ideal for many precision applications. The precision offset drift of only 0.085 µV per degree Celsius provides stability over the entire temperature range. In addition, the device offers excellent overall performance with high CMRR, PSRR, and AOL.
PAGE 16
OPA4188 SBOS641B – JUNE 2012 – REVISED MARCH 2013 www.ti.com GENERAL LAYOUT GUIDELINES For best operational device performance, good printed circuit board (PCB) layout practices are recommended. Low-loss, 0.1-µF bypass capacitors should be connected between each supply pin and ground, placed as close to the device as possible. A single bypass capacitor from V+ to ground is applicable to single-supply applications. PHASE-REVERSAL PROTECTION The OPA4188 has an internal phase-reversal protection.
PAGE 17
OPA4188 www.ti.com SBOS641B – JUNE 2012 – REVISED MARCH 2013 ELECTRICAL OVERSTRESS Designers often ask questions about the capability of an operational amplifier to withstand electrical overstress. These questions tend to focus on the device inputs, but may involve the supply voltage pins or even the output pin.
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OPA4188 SBOS641B – JUNE 2012 – REVISED MARCH 2013 www.ti.com APPLICATION EXAMPLES The application examples of Figure 44 and Figure 45 highlight only a few of the circuits where the OPA4188 can be used. 15 V U2 1/4 OPA4188 VOUTP 3.3 V VDIFF/2 -15 V R5 1 kW Ref 1 Ref 2 RG 500 W + VCM 10 R7 1 kW U1 INA159 VOUT Sense -15 V -VDIFF/2 U5 1/4 OPA4188 VOUTN 15 V Figure 44. Discrete INA + Attenuation for ADC with a 3.3-V Supply +15 V (5 V) Out REF5050 In 1 mF 1 mF R2 49.1 kW R3 60.4 kW R1 4.
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OPA4188 www.ti.com SBOS641B – JUNE 2012 – REVISED MARCH 2013 REVISION HISTORY NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision A (September 2012) to Revision B Page • Changed maximum specification of second Input Bias Current, IB parameter row in High-Voltage Electrical Characteristics table ..................................................................................................................................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 26-Jun-2013 continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
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PACKAGE MATERIALS INFORMATION www.ti.com 11-Jul-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device OPA4188AIPWR Package Package Pins Type Drawing TSSOP PW 14 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 2000 330.0 12.4 Pack Materials-Page 1 6.9 B0 (mm) K0 (mm) P1 (mm) 5.6 1.6 8.0 W Pin1 (mm) Quadrant 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 11-Jul-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) OPA4188AIPWR TSSOP PW 14 2000 367.0 367.0 35.
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