OPA4191IDR

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OPA4191IDR

IC CMOS 4 CIRCUIT 14SOIC

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規格

Supplier Texas Instruments
Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
AmplifierType CMOS
NumberofCircuits 4
OutputType Rail-to-Rail
SlewRate 5V/µs
GainBandwidthProduct 2.5 MHz
Current-InputBias 5 pA
Voltage-InputOffset 5 µV
Current-Supply 140µA (x4 Channels)
Current-Output/Channel 65 mA
Voltage-SupplySpan(Min) 4.5 V
Voltage-SupplySpan(Max) 36 V
OperatingTemperature -40°C ~ 125°C
MountingType Surface Mount
Package/Case 14-SOIC (0.154, 3.90mm Width)

概述

Description

OPA4191IDR is Texas Instruments’ precision operational amplifier (op-amp) in an 8‑pin package. It’s designed for DC accuracy with low offset voltage and drift, low input bias current, and low noise, making it suitable for instrumentation, sensor conditioning, and transimpedance applications. The IDR suffix indicates the tape‑and‑reel version in an RoHS‑compliant package (typically 8‑pin VSSOP/SOIC). It is unity‑gain stable and supports single or dual-supply operation within TI’s specified ranges, making it a good choice for precision buffering, ADC front‑ends, and other high‑accuracy signal‑conditioning duties.

Package

8-pin SOIC (small-outline) package (D) with Tape & Reel packaging.

Pinout

- Pin count: 8 pins (8-pin package such as SOIC-8/MSOP-8/VSSOP-8).
- Function: OPA4191IDR is a precision operational amplifier with rail-to-rail input/output. It provides amplification for signal conditioning in single- or dual-supply configurations.
- Pin roles: In a typical TI 8-pin op-amp package, there are two inputs (non-inverting +IN and inverting −IN), one output (OUT), and two supply pins (+V and −V); the remaining pins are often offset-null or not connected, depending on the specific package variant. For exact pinout, consult the OPA4191IDR datasheet.

Manufacturer

- Manufacturer: Texas Instruments (TI).
- What kind of company: TI is an American multinational semiconductor company that designs and manufactures analog, mixed-signal, and digital integrated circuits, headquartered in Dallas, Texas. It is one of the world’s largest producers of semiconductors.

Application

OPA4191IDR is a precision, low-noise, rail-to-rail input/output op-amp. Common application areas include:
- Sensor signal conditioning (thermocouples, RTDs, strain gauges)
- Transimpedance amplifiers for photodiodes
- DAC/ADC front-end buffering and reference scaling
- Active filters and instrumentation amplifiers
- Low-noise preamps for medical, portable instrumentation, and data acquisition
- Any single- or dual-supply precision amplification needing rail-to-rail IO.

Equivalent

Equivalent products depend on required specs. Cross‑vendor substitutes with similar performance include:
- Analog Devices: ADA4528‑2 (dual, zero‑drift RRIO), ADA4522‑1/2
- TI: OPA2333 (dual RRIO precision), OPA2376 (low‑noise precision, dual)
Note: verify packaging, supply voltage, offset, drift, bandwidth, and pinout. Use TI/AD cross-reference tools for exact equivalents.

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