Logarithmic Amplifiers Design & Test (Using IC-741 Op-Amp) Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12336
Indian Lab Suppliers supplies the Logarithmic Amplifiers Design & Test (Using IC-741 Op-Amp) (Product ID: 12336) as part of its electronics engineering lab equipment range. It is a board for designing and testing a logarithmic amplifier built on an IC 741 op-amp.
Quick Answer
A log amplifier places a diode or transistor junction in the op-amp feedback path, so the output voltage varies with the logarithm of the input voltage. The board provides a 0-10 V, 50 mA continuously variable DC input source, ±15 V DC (50 mA) regulated rails for the op-amp and a 3½-digit DC voltmeter with 200 mV and 20 V ranges for reading the small output changes. A 20 MHz dual-trace oscilloscope is also listed for waveform observation.
Key Specifications
| Parameter | Detail |
|---|---|
| Op-amp | IC 741 |
| Input source | 0-10 V DC at 50 mA, continuously variable |
| Op-amp supply | ±15 V DC at 50 mA, IC regulated |
| Voltmeter | 3½-digit DC, 200 mV / 20 V |
| Mains | 230 V AC ±10%, 50 Hz, with ON/OFF switch, fuse and indicator lamp |
| Size / weight | W 340 x H 125 x D 210 mm; about 2.6 kg |
| Also listed | 20 MHz dual-trace oscilloscope (not included) |
Where This Is Used
Used in linear IC and instrumentation courses; for log and antilog circuits together see the Study of Logarithmic and Anti-Logarithmic Amplifier (Product ID: 12094). Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
What does a log amplifier do?
Its output voltage is proportional to the logarithm of its input voltage.
Which op-amp is used?
The IC 741.
Why does the voltmeter have a 200 mV range?
The log output changes only by tens of millivolts per decade of input, so a low range gives useful resolution.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Engineering Lab Equipment
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