Study of Operational Amplifier as Voltage Comparator Manufacturer,Supplier and Exporter in India
Product Code : EL-COA-1144
Jlab Export is a leading Study of Operational Amplifier as Voltage Comparator Manufacturer,and suppliers in India
Study of Operational Amplifier as Voltage Comparator (code EL-COA-1144) is an electronics trainer for studying the IC 741 op amp used as a voltage comparator, which switches its output according to whether an input is above or below a reference. A +15 V DC regulated supply, one meter, a combination of resistances, a Zener diode and the IC 741 are connected inside, with connections brought out to terminals. It is made by Jain Laboratory Instruments Pvt Ltd (JLab) at its works in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Circuit studied | Operational amplifier as a voltage comparator |
| Op amp | IC 741, connected inside |
| Power supply | +15 V DC regulated (as listed) |
| Meter | One meter |
| Components | Combination of resistances and a Zener diode, connected inside |
| Connections | Brought out to terminals |
| Quality check | Each trainer is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 7–10 working days |
| Product code | EL-COA-1144 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the Voltage Comparator Trainer Used For?
It is used for the comparator practical in B.Sc. electronics, engineering, polytechnic and ITI/TVET labs. A comparator is an op amp used without negative feedback: its very high open-loop gain drives the output to one saturation level when the input is above the reference and to the other when it is below. Feeding the signal to the non-inverting input gives a non-inverting comparator; swapping the inputs inverts the response. The reference is typically taken from a resistor divider, and a Zener diode is commonly used either to give a stable reference voltage or to limit the output swing — ask JLab how it is wired on this panel.
Students vary the input voltage, note the point at which the output switches on the meter, and relate it to the reference. Comparators are the basis of level detectors and analogue-to-digital converters. Because a plain comparator has no hysteresis, a noisy input near the reference can make the output chatter, which is the reason for the Schmitt trigger.
What to Specify When Ordering
- Quantity — the minimum order is 10 trainers.
- Supply and meter — confirm the supply arrangement and the meter type and range if your syllabus specifies them.
- Companion trainers — the Schmitt trigger and sine to square converter complete a comparator set.
Frequently Asked Questions
What does a voltage comparator do?
It compares an input voltage with a reference and switches its output to one of two levels depending on which is higher. This trainer uses an IC 741 for the purpose.
What is the Zener diode for?
The listing includes a Zener diode with the resistances inside the trainer but does not state its role. In comparator circuits a Zener commonly provides a stable reference voltage or limits the output swing; JLab can confirm the exact circuit.
What supply and meter does it have?
A +15 V DC regulated power supply and one meter, as listed. The meter type and range are not given, so ask for them in the quotation if needed.
How is it different from the Schmitt trigger trainer?
This trainer shows a comparator switching at a single reference. The Schmitt trigger adds positive feedback, giving two thresholds so that noise does not cause repeated switching.
What should an export enquiry include?
The quantity, destination country and port or city, delivery terms such as FOB or CIF, packing or labelling needs and any tender reference.
Who manufactures this trainer?
Jain Laboratory Instruments Pvt Ltd, trading as JLab, at its works in Ambala, Haryana, India.
OEM Manufacturer
JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, a manufacturer of electronics and physics laboratory instruments in India, incorporated in 2017 and based on Hargolal Road, Ambala, Haryana. The comparator trainer is assembled at JLab’s own works instead of being bought from a trader, so institutions, dealers and importers buy from the source, each unit is inspected visually before dispatch, and repeat orders are handled by the maker. JLab holds MSME Udyam registration UDYAM-HR-01-0003849 (manufacturing enterprise) and Importer-Exporter Code 3317504552. JLab exports worldwide and ships to buyers in every region — for example Rwanda in East Africa, Angola in Central Africa, Jamaica in Central America and the Caribbean, Argentina in South America and Ghana in West Africa. Tender buyers can see the lab tenders page.
Related Trainers and Instruments
- Study of Operational Amplifier as Schmitt Trigger — the comparator with hysteresis.
- Study of Operational Amplifier as Sine to Square Wave Converter — a zero-crossing comparator.
- Study Characteristics of Operational Amplifier — measures the IC 741’s own offset, slew rate and bandwidth.
- Digital Multimeter — for reading input and reference voltages.
See the Characteristics Operational Amplifiers category or the Scientific Instrument range.
Request a Quote
Quotes come direct from the manufacturer. Use the Add To Cart enquiry button on this page, or send the quantity (minimum 10 units), any supply or meter requirements and your delivery location through the contact page.
Last updated: 9 October 2026
