CA has gate protected MOSFETs (PMOS) transistors in the input circuit to provide very high input impedance typically around T Ohms. The IC requires. Renesas Electronics CAE Operational Amplifiers – Op Amps are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for Renesas. CAE datasheet, CAE pdf, CAE data sheet, datasheet, data sheet, pdf, Harris Semiconductor, MHz, BiMOS operational amplifier with MOSFET.

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This is a general-purpose operational amplifier with a JFET input, which is even better because its input impedance will be high. This one is the most affordable I could find from Farnell at just 38p each or 29p when you buy Here is a list showing the approximate price for one at Farnell.

Obviously, it will be cheaper for bulk purchase. The common mode input voltage range will go 0.

However, Farnell have the LFN, which is an equivalent for 38p. This is one of my favourites as it is almost identical to the old in technology. The CAE is a direct replacement for theand the manufacturers designed it with this being the main purpose.

HARRIS CA3140E BiMOS Operational Amplifier 4.5MHz, Dip-8

You can make your budget stretch further if you look for cheaper equivalents. Almost all the modern 8-pin operational amplifiers take their architecture from the earlier chip. You can pick one of these up from Maplin for around 62p whilst you are on your way to the chip shop. I have compiled a list of my favourite chips that are readily available and affordable. These are ideal for battery powered circuits and portable devices. These CMOS operational amplifiers will operate on a voltage as low as 2.


CAE Datasheet(PDF) – Intersil Corporation

Both chips are pin identical toexcept the MCP has cx3140e chip select on pin 8. Mr Vis Education Donate. The LM is a classic op amp chip and as you can see, it has a very simple and standard layout that is identical to all the chips mentioned on this page. Texas Instruments have one of the largest ranges of integrated circuits that are pin compatible, with JFET inputs.

The is the one everyone thinks of when looking for a general-purpose amplifier, however, if you rely too much on the same chip and seller, they will sometimes artificially hike up their prices.

Many manufacturers have made minor changes to the original design, however for the most part they are pinout equivalents, and the same formula for gain calculation applies.

caa3140e CAE is pin equivalent to the LM If you were using an op amp for simple educational experiments to calculate the gain, or perhaps for simple basic op amp circuits, then many cheaper equivalents would perform just as effectively, and save you money. Even with all the modern day equivalents, the LMCN is still a very cost effective chip at ca3140ee 54p each or 32p when you buy from Farnell.

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Your basic op amp circuit configurations will be the same and you will be using the same formulas. This means you could connect the inputs directly to a signal source with minimal impedance issues. This is useful if you wanted to switch audio signals, otherwise, you could always tie it permanently to ground. TLCN is another favourite of mine because it is affordable.

This is the low noise version, which is extremely useful for high-fidelity audio applications. Consequently, some chips have been getting expensive due to students relying too much on one model and manufacturer.

This is a general-purpose amplifier utilising bipolar junction transistor technology. There are many compatible chips readily obtainable; however, the problem is that many students and colleges are not aware of the different manufacturers and the model numbers.

If you required high-speed and precision, and money was no object, then this IC is ideal for precision instrumentation, medical equipment, and professional audio.

Harris CA IC | IBS Electronics

You can get these from RS at very affordable prices. There is a minor difference in that pin 8 is for the strobe function, which controls the output, however, for basic op amp circuits it is not used. It has JFET inputs and is pin compatible with the