Product Summary

The LOG104AID is a logarithmic and log ratio amplifier. The LOG104AID is a versatile integrated circuit that computes the logarithm or log ratio of an input current relative to a reference current. The LOG104AID is tested over a wide dynamic range of input signals. In log ratio applications, a signal current can come from a photodiode, and a reference current from a resistor in series with a precision external reference.

Parametrics

LOG104AID absolute maximum ratings: (1)Supply Voltage, V+ to V-: 36V; (2)Input Voltage: V- (-0.5) to V+ (+0.5V); (3)Input Current: ±10mA; (4)Output Short-Circuit: Continuous; (5)Operating Temperature: -40℃ to +85℃; (6)Storage Temperature: -55℃ to +125℃; (7)Junction Temperature: +150℃; (8)Lead Temperature (soldering, 10s): +300℃.

Features

LOG104AID features: (1)Easy-to-use complete core function; (2)High accuracy: 0.01% FSO Over 5 Decades; (3)Wide input dynamic range: 7.5 Decades, 100pA to 3.5mA; (4)Low quiescent current: 1mA; (5)Wide supply range: ±4.5V to ±18V.

Diagrams

LOG104AID block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LOG104AID
LOG104AID
Texas Instruments
Logarithmic Amplifiers LOGARITHMIC AMP
Data Sheet
0-1: $9.91
1-10: $9.02
10-25: $8.33
25-50: $8.05
LOG104AIDE4
LOG104AIDE4
Texas Instruments
Logarithmic Amplifiers LOGARITHMIC AMP
Data Sheet
0-41: $8.33
41-50: $8.05
50-100: $6.05
100-250: $5.97
LOG104AIDG4
LOG104AIDG4
Texas Instruments
Logarithmic Amplifiers LOGARITHMIC AMP
Data Sheet
0-41: $8.33
41-50: $8.05
50-100: $6.05
100-250: $5.97
LOG104AIDRE4
LOG104AIDRE4
Texas Instruments
Logarithmic Amplifiers LOGARITHMIC AMP
Data Sheet
Negotiable 
LOG104AIDR
LOG104AIDR
Texas Instruments
Logarithmic Amplifiers LOGARITHMIC AMP
Data Sheet
Negotiable