LOG104AID
ActivePRECISION LOGARITHMIC AND LOG RATIO AMPLIFIER WITH SCALE FACTOR OF 0.5-V/DECADE
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LOG104AID
ActivePRECISION LOGARITHMIC AND LOG RATIO AMPLIFIER WITH SCALE FACTOR OF 0.5-V/DECADE
Deep-Dive with AI
Technical Specifications
Parameters and characteristics for this part
| Specification | LOG104AID |
|---|---|
| -3db Bandwidth | 45 kHz |
| Amplifier Type | Logarithmic and Log Ratio |
| Current - Input Bias | 5 pA |
| Current - Output / Channel | 18 mA |
| Current - Supply | 1 mA |
| Mounting Type | Surface Mount |
| Number of Circuits | 1 |
| Operating Temperature [Max] | 75 ░C |
| Operating Temperature [Min] | -5 °C |
| Package / Case | 8-SOIC |
| Package / Case [x] | 0.154 in |
| Package / Case [y] | 3.9 mm |
| Supplier Device Package | 8-SOIC |
| Voltage - Input Offset | 300 çV |
| Voltage - Supply Span (Max) [Max] | 36 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 1 | $ 17.84 | |
| 10 | $ 16.40 | |||
| 75 | $ 15.72 | |||
| 150 | $ 13.85 | |||
| 300 | $ 13.17 | |||
| 525 | $ 12.32 | |||
| Texas Instruments | TUBE | 1 | $ 16.06 | |
| 100 | $ 14.03 | |||
| 250 | $ 10.81 | |||
| 1000 | $ 9.67 | |||
Description
General part information
LOG104 Series
The LOG104 is a versatile integrated circuit that computes the logarithm or log ratio of an input current relative to a reference current.
The LOG104 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.
The output signal at VOUTis trimmed to 0.5V per decade of input current, allowing seven decades of input current, dynamic range.
Documents
Technical documentation and resources
