OPA381AIDGKR The Texas Instruments OPA381AIDGKR is a precision, low power, high-speed transimpedance amplifier. It offers an 18MHz gain bandwidth and operates over a supply range of 2.7V to 5.5V.
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OPA381AIDGKR

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments OPA381AIDGKR is a precision, low power, high-speed transimpedance amplifier. It offers an 18MHz gain bandwidth and operates over a supply range of 2.7V to 5.5V.
✓ Total Stock: 53 pcs
$ Price Range: $1.04

OPA381AIDGKR Available from 1 distributor

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✓ Non-Authorised
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OPA381AIDGKR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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OPA381AIDGKR Description

Short technical summary and product information.

The OPA381AIDGKR from Texas Instruments is a precision transimpedance amplifier designed for high-speed applications. It provides an 18MHz gain bandwidth (GBW) with excellent long-term stability and very low 1/f noise.

 

Key electrical characteristics include a low offset voltage of 25µV (max), an offset drift of 0.1µV/°C (max), and a bias current of only 3pA. The amplifier operates from a supply voltage range of 2.7V to 5.5V and consumes a quiescent current of 800µA.

 

This device is housed in a VSSOP (DGK) 8-pin package and is suitable for precision I/V conversion, photodiode monitoring, optical amplifiers, and CAT-scanner front-ends. It offers a dynamic range of 5 decades and fast overload recovery.

 

The operating temperature range is -40°C to 125°C. The OPA381 family exceeds the performance of conventional JFET op amps in terms of offset, drift, and noise.

OPA381AIDGKR Quick Information

Product Type: Transimpedance Amplifier
Series: OPA381
Canonical Name: OPA381 Precision, Low Power, High-Speed Transimpedance Amplifier
Subcategory: Transimpedance Amplifier

OPA381AIDGKR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

OPA381AIDGKR Estimated Pricing

Qty Low High
1+ $1.04 $1.04

Estimated market price range - modelled values for guidance only, not live distributor offers.

OPA381AIDGKR Features

  • 18MHz gain bandwidth amplifier.
  • Very low 3pA bias current.
  • High precision 25µV offset voltage.
  • Wide 2.7V to 5.5V supply range.
  • Operates -40°C to 125°C.

OPA381AIDGKR Applications

  • Precision I/V conversion.
  • Photodiode monitoring.
  • Optical amplifier front-ends.
  • CAT-scanner applications.
  • Photo lab equipment.

OPA381AIDGKR FAQs

5 frequently asked questions generated from this part’s specifications.
What is the gain bandwidth of the OPA381AIDGKR?

The OPA381AIDGKR has a gain bandwidth of 18MHz.

What is the typical bias current for the OPA381AIDGKR?

The OPA381AIDGKR has a typical bias current of 3pA.

What is the maximum offset voltage of the OPA381AIDGKR?

The OPA381AIDGKR has a maximum offset voltage of 25µV.

What is the operating temperature range for the OPA381AIDGKR?

The OPA381AIDGKR operates from -40°C to 125°C.

What is the package type for the OPA381AIDGKR?

The OPA381AIDGKR is supplied in a VSSOP (DGK) package.

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