See datasheet for actual packaging/pinout drawings

Package | PIN:

RGV | 16


C (0 to 70)

ECO Plan:

Green (RoHS & no Sb/Br)

TI Store Price:

1 - 9 $ 8.79
10 - 24 $ 8.17
25 - 99 $ 7.89
100 - 249 $ 6.89
250 - 499 $ 6.56
500 - 749 $ 6.04
750 - 999 $ 5.42
1000 - 9999 $ 5.40
  View datasheet for LOG114AIRGVT View product folder for LOG114AIRGVT

Adjust your quantity during checkout

LOG114AIRGVT-Precision High-Speed Logarithmic Amplifier with 2.5V Reference and Uncommitted Output Op Amps

The LOG114 is specifically designed for measuring low-level and wide dynamic range currents in communications, lasers, medical, and industrial systems. 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 5V or 10V range. The output can be scaled and offset with one of the available additional amplifiers, so it matches a wide variety of ADC input ranges. Stable dc performance allows accurate measurement of low-level signals over a wide temperature range. The LOG114 is specified over a -5°C to +75°C temperature range and can operate from -40°C to +85°C.

View datasheet
View product folder
Order SummaryEdit >
Subtotal: $0.00
Shipping & Handling: -
Total (USD): $0.00