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OPA857IRGTT AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

OPA857IRGTT product

OPA857IRGTT

Amplifiers

transimpedance amplifierphotodiodewidebandlow noiseVQFN-16

OPA857IRGTT is a 16-pin VQFN transimpedance amplifier for high-speed photodiode interfaces, offering selectable 5-kOhm and 20-kOhm internal gain.

Best for

  • High-speed photodiode monitoring
  • Optical receiver front ends
  • High-speed current-to-voltage conversion

Avoid if

  • A general-purpose voltage amplifier is required
  • The design cannot control input capacitance or high-frequency layout

Check before use

  • Photodiode bias polarity
  • Input capacitance
  • Output loading
  • Gain-control and test-mode pin connections

Key specifications

Supply voltage
2.7 V to 3.6 V
Gain
5 kOhm or 20 kOhm internal; 4.5 kOhm or 18.2 kOhm effective into 500 Ohm
Bandwidth
125 MHz at 5 kOhm; 105 MHz at 20 kOhm
Package
16-pin VQFN, 3.1 mm × 3.1 mm, 1 mm maximum height

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
-
MSL
Level-2-260C-1 YEAR
ECCN
-
HTSUS
-

Application

Photodiode monitoringOptical receiver front ends

Datasheet

Texas-Instruments-company-64.pdf

800 KB

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CAD Models

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Where to Buy

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Alternative components

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Design and risk insights

Questions & answers

It is a Texas Instruments wideband transimpedance amplifier with selectable 5-kOhm and 20-kOhm gain configurations, pseudo-differential output, and integrated input protection.