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OPA388IDBVT Datasheet(PDF) 1 Page - Texas Instruments |
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OPA388IDBVT Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 50 page  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 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-to- digital 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 packages. All versions are specified over the industrial temperature range of –40°C to +125°C. Device Information PART NUMBER PACKAGE(1) BODY SIZE (NOM) OPA388 SOIC (8) 4.90 mm × 3.90 mm SOT-23 (5) 2.90 mm × 1.60 mm VSSOP (8) 3.00 mm × 3.00 mm OPA2388 SOIC (8) 4.90 mm × 3.90 mm VSSOP (8) 3.00 mm × 3.00 mm OPA4388 SOIC (14) 8.65 mm x 3.90 mm TSSOP (14) 5.00 mm x 4.40 mm (1) For all available packages, see the package option addendum at the end of the data sheet. GND R 2 25 k R G R 3 25 k + ± OPA388 GND 5 V R 4 100 k REF5025 5 V + ± OPA388 GND 5 V R2 10 k GND V OUT R 4 100 k 5 V G = 5 + 200 NŸ R G +SENSE ±SENSE Load Cell The OPA388 in a High-CMRR, Instrumentation Amplifier Application -3 -2 -1 0 1 2 3 2.47 2.48 2.49 2.5 2.51 2.52 2.53 ± 100 ±80 ±60 ±40 ±20 0 20 40 60 80 100 û55 SSP C001 R G = 1 kŸ The OPA388 Allows Precision, Low-Error Measurements OPA388, OPA2388, OPA4388 SBOS777D – NOVEMBER 2016 – REVISED JULY 2020 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. |
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