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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I have compiled a list of my favourite chips that are readily available and affordable. Almost all the modern 8-pin operational amplifiers take their architecture from the earlier chip. These are ideal for battery powered circuits and portable devices.
The CAE is a direct replacement for theand the manufacturers designed it with this being the main purpose. It has JFET inputs and is pin compatible with the Obviously, it will be cheaper for bulk purchase. This is one of my favourites as it is almost identical to the old in technology.
CA3140E Intersil,, Op Amp, 3.7MHz, 5 V, 9 V, 12 V, 15 V, 18 V, 24 V, 28 V, 8-Pin PDIP
There is a minor difference in that ca3140ee 8 is for the strobe function, which controls the output, however, for cca3140e op amp circuits it is not used. These CMOS operational amplifiers will operate on a voltage as low as 2.
This is useful if you wanted to switch audio signals, otherwise, you could always tie it permanently to ground. 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. You can get these from RS at very affordable 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.
If you were using an op amp for simple educational experiments to calculate the gain, or ca31440e for simple basic op amp circuits, then many cheaper equivalents would perform just as effectively, and save you money.
ca310e 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.
This is a general-purpose amplifier utilising bipolar junction transistor technology. 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.
Even with all the modern day equivalents, the LMCN is still a very cost effective chip at around 54p each or 32p when you buy caa3140e Farnell.
Here is a list ca340e the approximate price for one at Farnell. Consequently, some chips have been getting expensive due to students relying too much on one model and manufacturer.
CAE Datasheet(PDF) – Intersil Corporation
You can make your budget stretch further if you look for cheaper equivalents. Mr Vis Education Donate. Both chips are pin identical toexcept the MCP has a chip select on pin 8.
Your basic op amp circuit configurations will be the same ca314e you will be using the same formulas.
Harris CA IC | IBS Electronics
This means you could connect the inputs directly to a signal source with minimal impedance issues. This is the low noise version, which is extremely useful for high-fidelity audio applications.
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. However, Farnell have the LFN, which is an equivalent for 38p. This is a general-purpose operational amplifier with a JFET input, which is even better because its input impedance will be high. TLCN is another favourite of mine because it is affordable.
Texas Instruments have one of the largest ranges of integrated circuits that are pin compatible, with JFET inputs.
You can pick one of these up from Maplin for around 62p whilst you are on your way to the chip shop. This one is the most affordable I could find from Farnell at just 38p each or 29p when you buy CAE is pin equivalent to the LM The common mode input voltage range will c3140e 0.