Low Charge Injection 8-Channel High Voltage Analog Switch - Clare - #1

T A n r CPC7220

An IXYS Company High Voltage Analog Switch

• Processed with BCDMOS on SOI (Silicon On Insulator)

• DC to 10MHz analog signal frequency

• Surface mount package available

• Low quiescent power dissipation (< 1uA typical)

• Output on-resistance typically 20Q

• TTL I/O's for 3.3V interface

• Adjustable high voltage supplies

The CPC7220 is a low charge injection 8-channel high-voltage analog switch integrated circuit (IC) for use in applications requiring high voltage switching. Control of the high voltage switching is via low voltage TTL logic level compatible inputs for direct connectivity to the system controller.

Switch manipulation is managed by an 8-bit serial to parallel shift register whose outputs are buffered and stored by an 8-bit transparent latch. Level shifters buffer the latch outputs and operate the high voltage switches.

Because the CPC7220 is capable of switching high load voltages and has a flexible load voltage range, e.g. V_PP/V_NN : +40V/-160V or +100V/-100V, it is well suited for many medical and industrial applications such as medical ultrasound imaging, printers, and industrial measurement equipment.

• Ultrasound imaging

• Printers

• Industrial controls and measurement

SHIFT REGISTER

LATCHES _SH_|^EVTER_S SWITCHES

Construction of the high voltage switches using Clare's reliable BCDMOS process technology on SOI (Silicon On Insulator) allow the switches to be organized as solid state switches with direct gate drive.

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