For BusinessPricing
Request a demo

LOG114AIRGVR AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

LOG114AIRGVR product

LOG114AIRGVR

Amplifiers

logarithmic amplifierlog-ratio amplifierphotodiode interface0.375 V/decade2.5 V referenceVQFN-16

LOG114AIRGVR is a precision logarithmic current and log-ratio amplifier for photodiode and other positive-current measurements over a wide dynamic range.

Best for

  • Wide-dynamic-range photodiode current measurement
  • Optical power and absorbance log-ratio measurement
  • Analog dynamic-range compression before an ADC

Avoid if

  • The input signal is a negative current without an added current inverter
  • Guaranteed accuracy is required above 3.5 mA
  • A rail-to-rail low-voltage logarithmic solution is required

Check before use

  • Reference current generation and stability
  • Single-supply common-mode and Com biasing
  • QFN exposed-pad connection to V−
  • Output range required by the following ADC or analog stage

Key specifications

Log scale factor
0.375 V/decade
Input current capability
100 pA to 10 mA
Specified accuracy range
100 pA to 3.5 mA
Supply range
4.8 V to 11 V single supply or ±2.4 V to ±5.5 V dual supply
Reference
2.5 V internal bandgap reference
Package
16-pin VQFN (RGV), 4 mm × 4 mm

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
-
MSL
MSL 2, 260 °C, 1 year
ECCN
-
HTSUS
-

Application

Photodiode signal compressionOptical density and absorbance measurementFiber optic power controlIndustrial current measurement

Datasheet

Texas-Instruments-company-64.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for LOG114AIRGVR: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
Get Files
PCB Footprint
Land pattern for PCB layout
Get Files
3D Model
STEP file for mechanical design
Get Files
KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
Generate library

Login required · CAD models billed separately as an add-on

Where to Buy

Real-time and catalog pricing from verified distributors

Live prices updated on demand · Catalog (~) prices may differ

Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

LOG114AIRGVR is a Texas Instruments precision logarithmic amplifier in a 16-pin RGV VQFN package. It generates a voltage proportional to log10(I1/I2) and includes an internal 2.5 V reference plus two auxiliary op amps.