Study of Logarithmic and Anti-Logarithmic Amplifier Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12094
Indian Lab Suppliers supplies the Study of Logarithmic and Anti-Logarithmic Amplifier (Product ID: 12094) as part of its electronics engineering lab equipment range. It is a board for studying temperature-compensated logarithmic and anti-logarithmic amplifiers built with op-amps and transistors.
Quick Answer
A log amplifier uses the exponential current-voltage law of a transistor junction in the op-amp feedback path, so the output is proportional to the logarithm of the input; the antilog amplifier reverses this. Because that law depends on temperature, both circuits here are temperature compensated. Students set an input from the ±1 V, 10 mA adjustable source, read input and output on two ±1.999 V digital voltmeters and plot the transfer curve, then check each circuit’s frequency response with a 20 MHz CRO. Four op-amps, transistors, a ±12 V, 100 mA regulated supply and a +12 V reference are on board.
Key Specifications
| Parameter | Detail |
|---|---|
| Circuits | Temperature-compensated log and antilog amplifiers |
| Active parts | 4 op-amps, transistors |
| DC supply | ±12 V at 100 mA, IC regulated; +12 V reference |
| Input source | ±1 V DC at 10 mA, adjustable |
| Meters | 2 digital DC voltmeters, ±1.999 V (input and output) |
| Mains | 230 V ±10%, 50 Hz |
| Size / weight | 340 x 125 x 210 mm; about 2.1 kg |
| Accessories | 4 mm patch cords, 50 cm: 2 red, 2 black |
| Also required | 20 MHz CRO |
Where This Is Used
Used in linear IC and analog signal-processing labs, following the Application Using OP-AMP IC-741 (Product ID: 12092) and Op-Amp Trainer (Product ID: 12076). Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
Why is temperature compensation needed?
The transistor junction law that gives the log response changes with temperature.
How are input and output read?
On two built-in ±1.999 V digital voltmeters.
Is a CRO needed?
Yes, a 20 MHz CRO for the frequency response.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Engineering Lab Equipment
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