IS 12970 : Part 5 : Sec 6 : 1993 Semiconductor devices - Integrated circuits: Part 5 Analogue integrated circuits - Essential ratings and characteristics, Sec 6 Analogue signal switching circuits

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This standard ( Part S/Section 6 ) gives ratings and characteristics that are required to specify integrated circuits in which certain terminals, designated switch output terminals, can be caused either to reproduce the signal at the designated switch input terminals, or to be isolated from them by application of suitable electrical control signal(s) to the control terminal( s). The integrated circuit package contains switching element(s) and the associated control circuit(s). The switching elements may be controlled by one or more inputs and the control input may be analogue (differential ) or digital. Examples of analogue switching circuits are as follows:

1) Single analogue switching circuits having one switching element controlled by one control circuit.

2) Multiple-channel analogue switching circuits:

a) In which the switches are independent and each switching element is controlled by its own separate control circuit.

b) In which a group of analogue switching circuit is controlled by a single control circuit. The circuit may contain one or more groups of switching elements.

3) Multiplexing or demultiplexing analogue switching circuits having one or more analogue signal input terminals that can be selectively connected by a switch control circuit to one or more analogue signal output terminals.

It is possible that other types of analogue signal switching circuits will either be covered by lhis section or by others.

This; standard covers both bipolar and FET switches.

This standard should not be used when the constituent parts of the circuit can be specified adequately by other existing sections of Publications on essential ratings and characteristics. For example, transistors that, while within the package, can be accessed separately via available terminations, should be specified separately according to the relevant specification.