OPA4137U

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OPA4137U

IC OPAMP JFET 4 CIRCUIT 14SOIC

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사양

Supplier Rochester Electronics, LLC,Texas Instruments
Package Bulk,Tube
Series MicroAmplifier™
ProductStatus Active
AmplifierType J-FET
NumberofCircuits 4
SlewRate 3.5V/µs
GainBandwidthProduct 1 MHz
Current-InputBias 5 pA
Voltage-InputOffset 1.5 mV
Current-Supply 220µA
Current-Output/Channel 60 mA
Voltage-SupplySpan(Min) 4.5 V
Voltage-SupplySpan(Max) 36 V
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 14-SOIC (0.154, 3.90mm Width)

개요

Description

OPA4137U is a precision, low-noise operational amplifier from Texas Instruments. It’s designed for accurate amplification in instrumentation, sensor conditioning, and audio applications. Key traits include very low input offset and bias currents, low voltage noise, and good DC accuracy, plus a wide supply range and stable closed-loop performance. It’s commonly used in transimpedance amplifiers, active filters, and precision gain stages. The device is typically available in 8-pin packages (e.g., SO-8 or MSOP). For exact figures—supply range, input/output common-mode ranges, offset, noise density, slew rate, and gain-bandwidth product—consult the current OPA4137U datasheet and packaging options.

Features

Here are the key features of the OPA4137U (TI precision op-amp):
- Ultra-low offset voltage and low drift (high-precision)
- Very low input bias current
- Low input-referred noise
- Rail-to-rail input and/or output (RRIO) for single-supply operation
- Wide supply voltage range
- Unity-gain stable (suitable for various closed-loop gains)
- High gain-bandwidth product and fast slew rate for demanding signals
- High output drive capability
- Low distortion with good PSRR and CMRR
- Industrial temperature range
- Available in compact packages (e.g., SOIC/MSSOP variants) with good ESD protection
Note: Exact numerical specs (offset, noise, GBW, slew rate, supply range, etc.) are in the official TI datasheet.

Package

OPA4137U is available in an 8-pin SOIC (surface-mount) package.

Pinout

- Pin count: 8 pins (SOIC/DIP-8 package commonly used for OPA4137U).
- Function: Precision operational amplifier (op-amp) used to amplify small differential voltages with high accuracy (low offset/noise).

Manufacturer

- Manufacturer: Texas Instruments (TI).
- What kind of company: TI is an American multinational semiconductor company that designs and manufactures analog and mixed-signal integrated circuits (e.g., op-amps, data converters, sensors).

Application

- Precision amplification and buffering for sensors and instrumentation
- Sensor conditioning (thermocouples, RTDs, bridge sensors)
- Instrumentation front-ends and preamplifier stages
- Transimpedance amplifiers for photodiodes
- DAC output buffers and servo loops
- Active filters (low-pass, high-pass, notch)
- Audio preamplifiers and high-impedance preamps
- Medical/industrial instrumentation front-ends

Equivalent

There isn’t a direct pin-for-pin equivalent for OPA4137U. Closest functionally related dual, low-noise RRIO op-amps include:
- Analog Devices ADA4528-2 (dual, zero-drift, RRIO)
- ADA4627-1/2 (dual, low-noise)
- AD8628 (dual, low-noise)
- TI OPA2137 (dual audio-grade)
Note: check footprint and exact specs; use TI’s cross-reference tool for precise substitutes.

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