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LOG114 Datasheet PDF

Part Series:
LOG114 Series
Category:
Amplifiers,Buffers
Description:
TEXAS INSTRUMENTS LOG114AIRGVT Logarithmic Amplifier, Single-Supply, 5 Amplifier, 8 Decades, 375mV / Decade, 1.5µs, VQFN, 16Pins
Updated Time: 2023/01/13 02:34:21 (UTC + 8)

LOG114 Datasheet PDF Amplifiers,Buffers

30 Pages
TI
IC OPAMP LOG 15MHz 16VQFN

LOG114AIRGVT - TI Specifications

TYPE
DESCRIPTION
Mounting Style
Surface Mount
Number of Pins
16 Pin
Case/Package
VQFN-16
Supply Current
10 mA
Number of Circuits
1 Circuit
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LOG114AIRGVT - TI Function Overview

The LOG114AIRGVT is a precision high-speed Logarithmic Amplifier designed for measuring low-level and wide dynamic range currents in communications and lasers. The device computes the logarithm or log-ratio of an input current or voltage relative to a reference current or voltage (logarithmic transimpedance amplifier). High precision is ensured over a wide dynamic range of input signals on either bipolar (±5V) or single (+5V) supply. Special temperature drift compensation circuitry is included on-chip. In log-ratio applications, the signal current may be from a high impedance source such as a photodiode or resistor in series with a low impedance voltage source. The reference current is provided by a resistor in series with a precision internal voltage reference, photo diode or active current source. The output signal at VLOGOUT has a scale factor of 0.375V out per decade of input current, which limits the output so that it fits within a 5 or 10V range.
Tiny for high density systems
Precision on one supply
Fast over eight decades
Fully-tested function
Stabile over temperature
Green product and no Sb/Br
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