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OPA388

Texas Instruments
Part Number OPA388
Manufacturer Texas Instruments
Description Input/Output Operational Amplifiers
Published May 20, 2023
Detailed Description OPA388, OPA2388, OPA4388 SBOS777D – NOVEMBER 2016 – REVISED JULY 2020 OPAx388 Precision, Zero-Drift, Zero-Crossover, Tru...
Datasheet PDF File OPA388 PDF File

OPA388
OPA388


Overview
OPA388, OPA2388, OPA4388 SBOS777D – NOVEMBER 2016 – REVISED JULY 2020 OPAx388 Precision, Zero-Drift, Zero-Crossover, True Rail-to-Rail, Input/Output Operational Amplifiers 1 Features • Ultra-low offset voltage: ±0.
25 µV • Zero drift: ±0.
005 µV/°C • Zero crossover: 140-dB CMRR true RRIO • Low noise: 7.
0 nV√Hz at 1 kHz • No 1/f noise: 140 nVPP (0.
1 Hz to 10 Hz) • Fast settling: 2 µs (1 V to 0.
01%) • Gain bandwidth: 10 MHz • Single supply: 2.
5 V to 5.
5 V • Dual supply: ±1.
25 V to ±2.
75 V • True rail-to-rail input and output • EMI/RFI filtered inputs • Industry-standard packages: – Single in SOIC-8, SOT-23-5, and VSSOP-8 – Dual in SOIC-8 and VSSOP-8 – Quad in SOIC-14 and TSSOP-14 2 Applications • Merchant network and server PSU • Notebook PC power adapter design • Weigh scale • Lab and field instrumentation • Battery test • Electronic thermometer • Temperature transmitter R3 25 k R4 5V 100 k RG REF5025 R4 100 k R2 25 k 5V 5V ± +SENSE 5V ± VOUT OPA388 OPA388 + R2 10 k GND + GND ±SENSE GND GND Load Cell 200 NŸ G=5+ RG The OPA388 in a High-CMRR, Instrumentation Amplifier Application 3 Description The OPAx388 (OPA388, OPA2388, and OPA4388) series of precision operational amplifiers are ultra-low noise, fast-settling, zero-drift, zero-crossover devices that provide rail-to-rail input and output operation.
These features and excellent ac performance, combined with only 0.
25 µV of offset and 0.
005 µV/°C of drift over temperature, makes the OPAx388 a great choice for driving high-precision, analog-todigital converters (ADCs) or buffering the output of high-resolution, digital-to-analog converters (DACs).
This design results in excellent performance when driving analog-to-digital converters (ADCs) without degradation of linearity.
The OPA388 (single version) is available in the VSSOP-8, SOT23-5, and SOIC-8 packages.
The OPA2388 (dual version) is offered in the VSSOP-8 and SO-8 packages.
The OPA4388 (quad version) is offered in the TSSOP-14 and SO-14 ...


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