Differential Amplifier with power supply Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12152
Indian Lab Suppliers supplies the Differential Amplifier with power supply (Product ID: 12152) as part of its electronics engineering lab equipment range. It is a solid-state training board for studying the transistor differential amplifier, the input stage of an operational amplifier.
Quick Answer
The board uses three NPN transistors with an IC-regulated ±9 V DC, 100 mA supply. Students study how the circuit amplifies the difference between two inputs, measure the differential-mode gain and common-mode gain, and calculate the common-mode rejection ratio, CMRR = Ad/Ac (often given in dB). An audio frequency generator, AC millivoltmeter and 20 MHz oscilloscope are needed. Weight and size are not listed; please confirm at quotation.
Key Specifications
| Parameter | Detail |
|---|---|
| Circuit | Transistor differential amplifier |
| Transistors | Three NPN |
| Built-in supply | ±9 V DC, 100 mA, IC regulated |
| Mains input | 230 V ±10%, 50 Hz AC, with mains switch, fuse and pilot lamp |
| Experiments | Differential-mode gain, common-mode gain, CMRR |
| Connections | 4 mm terminals; stackable spring-loaded patch cords, 0.5 m |
| Also required | AF generator, AC millivoltmeter, 20 MHz CRO |
Where This Is Used
A lead-in to IC op-amp work on the Study of Operational Amplifier (UA 741) with power supply (Product ID: 12185). The unit is mains powered; switch off before rewiring. Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
What is CMRR?
The ratio of differential-mode gain to common-mode gain.
What supply rails are on the board?
±9 V DC at 100 mA, IC regulated.
How many transistors are used?
Three NPN transistors.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Electricity and Magnetism
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