CD22M3494

Features:

• 128 Analog Switches
• Low R_ON
• Guaranteed R_ON Matching
• Analog Signal Input Voltage Equal to the Supply Voltage
• Wide Operating Voltage . . . . . . . . . . . . . . . . . . 4V to 15V
• Parallel Input Addressing
• High Latch Up Current . . . . . . . . . . . . . . . . . . 50mA (Min)
• Very Low Crosstalk
• Pin and Functionally Compatible with the Following Types: SGS M3494 and Mitel MT8816




Application

• PBX Systems
• Instrumentation
• Analog and Digital Multiplexers
• Video Switching Networks




Pinout






Specifications

DC Supply Voltage (V_DD)
Voltages Referenced to V_EE. . . . . . . . . . . . . . . . . . . . . -0.5 to 16V
DC Supply Voltage (V_DD)
Voltages Referenced to V_SS. . . . . . . . . . . . . . . . . . . . . . -0.5, 16V
DC Input Diode Current, I_IN
For VI, Digital < VSS -0.5V or VI,
Analog < V_EE -0.5V or V_I > V_DD 0.5V . . . . . . . . . . . . . . . .±20mA
DC Output Diode Current, I_OK
For V_O, Digital < V_SS -0.5V or V_O,
Analog < V_EE -0.5V or V_O > V_DD 0.5V . . . . . . . . . . . . . . . ..±20mA
DC Transmission Gate Current . . . . . . . . . . . . . . . . . . . .±25mA
Power Dissipation Per Package (Po)
For T_A = -40 to 85 (PDIP) . . . . . . . . . . . . . . . . . . . .. . 500mW
For T_A = 60 to 85 Derate Linearly . . . . . . 12mW/ to 200mW
For T_A = -40 to 85 (PLCC). . . . . . . . . . . . . . . . . . . . . . 600mW




Description

The Intersil CD22M3494 is an array of 128 analog switches capable of handling signals from DC to video. Because of the switch structure, input signals may swing through the total supply voltage range, VDD to VEE. Each of the 128 switches may be addressed via the ADDRESS input to the 7 to 128 line decoder. The state of the addressed switch is established by the signal to the DATA input. A low or zero input will open the switch, while a high logic level or a one will result in closure of the addressed switch when the STROBE input goes high from its normally low state. Any number or combination of connections may be active at one time. Each connection, however, must be made or broken individually in the manner previously described. CD22M3494 switches may be reset by taking the RESET input from a zero state to a one state and then returning it to its normal low state. CS allows crosspoint array to be cascaded for matrix expansion.