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Texas Instruments LOG114AIRGVT — Logic ICs

LOG114AIRGVT Logarithmic Amplifier, 5 MHz Bandwidth, 16-VQFN

MPNLOG114AIRGVT
End of Life

Texas Instruments LOG114AIRGVT logarithmic amplifier, single-circuit, 5 MHz -3dB bandwidth, 5V/µs slew rate, 4.8 V to 11 V supply, 16-VQFN Exposed Pad package, surface mount.

$12.12Ref. price · indicative, final on quote
Texas Instruments LOG114AIRGVT datasheet (PDF)
Packaging16-VQFN Exposed Pad
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LOG114AIRGVT specifications
ParameterValue
MountingSurface Mount
Amplifier typeLogarithmic
Voltage - input offset100 µV
Voltage - supply span4.8 V
Current - supply10mA
Current - input bias5 pA
Current - output (Channel)18 mA
Operating temperature-5°C ~ 75°C
-3db bandwidth5 MHz
Gain bandwidth product15 MHz
PackageTape & Reel (TR); Cut Tape (CT)
Slew rate5V/µs
Case16-VQFN Exposed Pad
Number of circuits1

Product details

Logarithmic amplifier for wide-dynamic-range signal conditioning

The LOG114AIRGVT: It converts input currents or voltages over multiple decades into a linearized output voltage, making it the natural choice for photodiode front-ends, optical power monitoring, and any application where the signal spans a wide dynamic range. The -3 dB bandwidth is 5 MHz and the slew rate is 5 V/µs, so it handles modulated optical signals up into the low-MHz region without losing the log conformance. Input bias current is 5 pA, which keeps the error negligible when working with photodiode currents in the nanoamp range.

Supply range, offset, and output drive

Input offset voltage is 100 µV. Supply current is 10 mA.

Temperature range — indoor and controlled environments

The operating temperature range is -5°C to 75°C.

ROHS3 compliant.

Frequently asked questions

What is LOG114AIRGVT used for?

It is a logarithmic amplifier used in photodiode signal conditioning, optical power measurement, wide-dynamic-range current-to-voltage conversion, and any application that requires compressing a multi-decade input range into a linear output voltage.

Is LOG114AIRGVT RoHS compliant?

Yes, it is ROHS3 compliant.

Is LOG114AIRGVT compatible with 3.3V logic?

The supply range is 4.8 V to 11 V, so it cannot run from a 3.3 V rail. If the ADC or controller uses 3.3 V logic, the output will need level translation or the supply must be at least 4.8 V.