The 4N25 is an optocoupler for general purpose applications. It contains a light emitting diode optically coupled to a photo-transistor.

TC 4427 is a dual high speed power mosfet driver. ThIS device IS highly latch-up resistant under any conditions within their power and voltage ratings. All terminals are fully protected against Electrostatic Discharge (ESD).

It is an integrated circuit that converts the signals from the RS232 serial port to the proper signal which is used in the TTL compatible digital logic circuits. The MAX232 can convert the signals like RX, TX, CTS, and RTS and it is a dual driver/receiver.

The Exclusive OR gates are monolithic complementary MOS (CMOS) integrated circuits constructed with N-Channel and P-Channel enhancement mode transistors. All inputs are protected against static discharge with diodes to VDD and VSS.

• Guaranteed zero reading for 0 V input on all scales
• True polarity at zero for precise null detection
• 1pA typical input current
• True differential input and reference, direct display drive – LED lCL7107
• Low noise – less than 15 VP-P
• On-chip clock and reference
• Low power dissipation – typically less than 10mW
• No additional active circuits required
• Enhanced display stability
• Pb-free (RoHS compliant)

This device is designed for use where the output voltage is a product of an input voltage (signal) and a switching function (carrier). Typical applications include suppressed carrier and amplitude modulation, synchronous detection, FM detection, phase detection, and chopper applications.