LTC1391CS datasheet(4/9 Pages) LINER

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LTC1391

TYPICAL PERFORMANCE CHARACTERISTICS

TEMPERATURE (

°C)

–40

–20

300

250

200

150

100

1391 G01

V+ = 2.7V

V – = 0V

VS = 1.2V

V+ = 5V

V – = –5V

VS = 0V

On-Resistance vs Temperature

TEMPERATURE (

°C)

–40

0.65

0.60

0.55

0.50

0.45

0.40

0.35

0.30

0.25

0.20

0.15

0.10

1391 G03

–20

020

V+ = 5V

V – = –5V

IO = 1.8mA

V+ = 2.7V

V – = 0V

IO = 400µA

OUTPUT CURRENT (mA)

0.4

0.8 1.0

2.0

1.8

1391 G02

0.2

0.6

1.2 1.4 1.6

1.2

1.1

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

TA = 25°C

V+ = 2.7V

V – = 0V

V+ = 5V

V – = –5V

Driver Output Low Voltage

vs Output Current

Driver Output Low Voltage

vs Temperature

OUTPUT VOLTAGE (V)

2.0

2.5

3.0

4.0

3.5

4.5

5.0

1391 G04

–0.5

–1.0

–1.5

–2.0

–2.5

–3.0

–3.5

–4.0

V+ = 5V

V – = –5V

TA =25°C

V+ = 2.7V

V – = 0V

TEMPERATURE (

°C)

–40

5.0

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

1391 G05

–20

020

V+ = 5V

V – = –5V

IO = 1.6mA

V+ = 2.7V

V – = 0V

IO = 400µA

PIN FUNCTIONS

S0, S1, S2, S3, S4, S5, S6, S7 (Pins 1, 2, 3, 4, 5, 6, 7,

8): Analog Multiplexer Inputs.

GND (Pin 9): Digital Ground. Connect to system ground.

CLK (Pin 10): System Clock (TTL/CMOS Compatible). The

clock synchronizes the channel selection bits and the

serial data transfer from DIN to DOUT.

CS (Pin 11): Channel Select Input (TTL/CMOS Compat-

ible). A logic high on this input enables the LTC1391 to

read in the channel selection bits and allows digital data

transfer from DIN to DOUT. A logic low on this input puts

DOUT into three-state and enables the selected channel for

analog signal transmission.

DIN (Pin 12): Digital Input (TTL/CMOS Compatible). Input

for the channel selection bits.

DOUT (Pin 13): Digital Output (TTL/CMOS Compatible).

Output from the internal shift register.

V – (Pin 14): Negative Supply.

D (Pin 15): Analog Multiplexer Output.

V + (Pin 16): Positive Supply.

Driver Output High Voltage

vs Output Current

Driver Output High Voltage

vs Temperature

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