Updated readme and datasheets

README.md

@@ -1,5 +1,5 @@
 # Op-Amp AC amplifier with highpass and lowpass filters
-* For use with MCP6001 or similar amplifier
+* For use with [MCP6001](https://ww1.microchip.com/downloads/en/DeviceDoc/MCP6001-1R-1U-2-4-1-MHz-Low-Power-Op-Amp-DS20001733L.pdf) or similar amplifier
 * Works with mV inputs centered around GND
 * Few components, 0603 passives for easy soldering
 
@@ -39,18 +39,25 @@ Note! The MCP6001 has a GBW of 1MHz. This means, if the gain is set to 100x, the
 * Gain = R2/R1 + 1
 * Gain is limited by the GBW (gain-bandwidth product) of the op-amp used
 * MCP6001 has a GBW of 1MHz, so max frequency = 1MHz / gain (3db loss at that frequency)
+* If you need higher frequencies / more gain, you can use a different op-amp, like an LMV721
 
 ## C2 makes the output centered around the biasing frequency
 * Whatever voltage Rb+ and Rb- form, will be the center frequency of the output
 * In essance, the gain for DC is 0 (since the gain resistors R1 and R2 have not DC path to GND)
 * C2 just needs to be big enough, when it is big enough it does not affect filtering
 
-## Rlp and Cout can be used for an output lowpass
+## Rout and Clp can be used for an output lowpass
 * Classic low pass filter, nothing to see here
 
-## Rlp and Cout can instead be used for an output highpass
+## Rout and Clp can instead be used for an output highpass
 * Just swap the position of the capacitor and resistor. It's ok, they fit.
 
+## Cbypass must be between 100nF and 1uF
+* This is to ensure stable operation of the op-amp
+
+## An additional bypass near the VCC / GND pins of the header
+* An additional bypass capacitor may be placed there, if necessary
+
 # Soldering tips
 
 ![Soldered board](images/soldered.jpg)
@@ -64,4 +71,4 @@ Note! The MCP6001 has a GBW of 1MHz. This means, if the gain is set to 100x, the
 # Simulation
 
 ![Simulation](images/simulation.png)
-[Falstad simulation available here (https://www.falstad.com/circuit/circuitjs.html?ctz=CQAgjCAMB0l3BWEDYCYDMqDsrUE4AOLSAgsJANiSQBZ1kBTAWjDACgBDEXG8CyEOnQU+AvMijh48btAR48WAnnQIMqGpAR1Z8wnHR5IRinSxTpbAO7cN4GrzwiwDqGwBOIJ-cciCAgXJ4Dy9nV29UEkkguDYAY1CfPiTeGGlICFRoGgV-BCxVBTAcIihYDLcAc0TIghq7ALYAJUT-RJo6gJBNCS6YBGtbXmKRHiG3TzGxoVGGi1ibGfGlsH4J8bHVgTHA4IStwUjRbgQRVPL4BSvrm4UQJiyclQINCnQS9EhzuAhINmqDphAmslo1FsJjsI6gc-p4occ6Khjrs-glEQjMONhswwEj0NB+OgCAgCMIEFoaBpFGUflVupixujUKdJH8AB73KjIXgUJFKbrgOoASQAdgAHACuABcADoAZwAFgBLSoKsUcOVymUykUcEUAE3lACMlRr5XEAPYAWyNFrYHNwSE+Akw5k+9GGdQAglaxQAbJUAMyVcQ4UqVFpF9qk5jAkHoYAhcbOgpATSNTGjrGBsZ0xQEnrTRplYujefIIGI4DAdULAGElVGHRRxFTuHgkcykYWmuwOTXO2puFoTrRU01UIMDps1syROzwFg3cVhy6jvXJxyicMVzQl+B16mAPLSyWyuXBv1ShjuQbog4dYGNDk5WPyZDoYa8gU1kBHgCqAAqbD5skLi8EwphJEi5IgP4cBlL8aBsBa3DmEiBbGOIWDQGAeAdDg2D5AQvLYDStKBGwQA)]
+[Falstad simulation available here CLICK CLICK](https://www.falstad.com/circuit/circuitjs.html?ctz=CQAgjCAMB0l3BWEDYCYDMqDsrUE4AOLSAgsJANiSQBZ1kBTAWjDACgBDEXG8CyEOnQU+AvMijh48btAR48WAnnQIMqGpAR1Z8wnHR5IRinSxTpbAO7cN4GrzwiwDqGwBOIJ-cciCAgXJ4Dy9nV29UEkkguDYAY1CfPiTeGGlICFRoGgV-BCxVBTAcIihYDLcAc0TIghq7ALYAJUT-RJo6gJBNCS6YBGtbXmKRHiG3TzGxoVGGi1ibGfGlsH4J8bHVgTHA4IStwUjRbgQRVPL4BSvrm4UQJiyclQINCnQS9EhzuAhINmqDphAmslo1FsJjsI6gc-p4occ6Khjrs-glEQjMONhswwEj0NB+OgCAgCMIEFoaBpFGUflVupixujUKdJH8AB73KjIXgUJFKbrgOoASQAdgAHACuABcADoAZwAFgBLSoKsUcOVymUykUcEUAE3lACMlRr5XEAPYAWyNFrYHNwSE+Akw5k+9GGdQAglaxQAbJUAMyVcQ4UqVFpF9qk5jAkHoYAhcbOgpATSNTGjrGBsZ0xQEnrTRplYujefIIGI4DAdULAGElVGHRRxFTuHgkcykYWmuwOTXO2puFoTrRU01UIMDps1syROzwFg3cVhy6jvXJxyicMVzQl+B16mAPLSyWyuXBv1ShjuQbog4dYGNDk5WPyZDoYa8gU1kBHgCqAAqbD5skLi8EwphJEi5IgP4cBlL8aBsBa3DmEiBbGOIWDQGAeAdDg2D5AQvLYDStKBGwQA)