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 useful if you wanted to switch audio signals, otherwise, you could always tie it permanently to ground.
You can make your budget stretch further fa3140e you look for cheaper equivalents. This one is the most affordable I could find from Farnell at just 38p each or 29p when you buy TLCN is another favourite of mine because it is affordable.
These CMOS operational amplifiers will operate on a voltage as low as 2. This is the low noise version, which is extremely useful for high-fidelity audio applications. Obviously, it will be cheaper for bulk purchase.
You can pick one of these up from Maplin for around 62p whilst you are on your way to the chip shop. Consequently, some chips have been getting expensive due to students relying too much on one model and manufacturer. Almost all the modern 8-pin operational amplifiers take their architecture from the earlier chip. I have compiled a list of my favourite chips that are readily available and affordable. 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. Here is a list showing the approximate price for one at Farnell. The common mode input voltage range will go 0.
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. This is one of my favourites as it is almost identical to the old in technology.
CAE Datasheet(PDF) – Intersil Corporation
Texas Instruments have one of the largest ranges of integrated circuits that are pin compatible, with JFET inputs. These are ideal for battery powered circuits c3a140e portable devices. Mr Vis Education Donate. Your basic op amp circuit configurations will be the same and you will be using the same formulas. The LM is a classic op amp chip and as you can see, it xa3140e a very simple and standard layout that is identical to all the chips mentioned on this page. It has JFET inputs and is pin compatible with the You can get these from RS at very affordable prices.
Pin Compatible Equivalent Op Amps
Both chips are pin identical toexcept the MCP has a chip select on pin 8. 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 from Farnell.
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. 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 CA3140E BiMOS Operational Amplifier 4.5MHz, Dip-8
This is a general-purpose operational amplifier with a JFET input, which is even better because its input impedance will be high. This means you could connect the inputs directly to a signal source with minimal impedance issues. CAE is pin equivalent to the LM 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 ca310e not used.
The CAE is a direct replacement for theand the manufacturers designed it with this being the main purpose. This is a general-purpose amplifier utilising bipolar junction transistor technology.