Low-Charge Injection, 16-Channel,

High-Voltage Analog Switches

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11

DATA BITS

CONTROL

BITS

FUNCTION

D8

D9

D10

D11

D12

D13

D14

D15

(MSB)

LE

CLR SW8

SW9

SW10

SW11 SW12

SW13

SW14

SW15

L

L

L

OFF

HL

L

ON

L

L

L

OFF

HL

L

ON

L

L

L

OFF

HL

L

ON

L

L

L

OFF

HL

L

ON

L

L

L

OFF

HL

L

ON

L

L

L

OFF

HL

L

ON

L

L

L

OFF

HL

L

ON

L

L

L

OFF

HL

L

ON

X

X

X

X

X

X

X

X

H

L

HOLD PREVIOUS STATE

X

X

X

X

X

X

X

X

X

H

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

Table 1. Serial Interface Programming (Notes 5–10) (continued)

X = Don’t care.

Note 5:

The 16 switches operate independently.

Note 6:

Serial data is clocked in on the rising edge of CLK.

Note 7:

The switches go to a state retaining their present condition on the rising edge of LE. When LE is low, the shift register data

flows through the latch.

Note 8:

DOUT is high when switch 15 is on.

Note 9:

Shift register clocking has no effect on the switch states if LE is high.

Note 10: The CLR input overrides all other inputs.