LTC1446LIN8 datasheet(5/12 Pages) LINER

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LTC1446/LTC1446L

TYPICAL PERFORMANCE CHARACTERISTICS

LTC1446L Supply Current vs Logic

Input Voltage

LOGIC INPUT VOLTAGE (V)

0.5

1.0

1.1

1.2

1446/46L G10

0.9

0.8

1.0

1.5

2.0

2.5

3.0

0.7

0.6

0.5

LTC1446 Supply Current vs

Temperature

TEMPERATURE (

°C)

–55

660

670

680

105

1446/46L G12

650

640

620

–15

– 35

125

630

700

690

VCC = 3.3V

VCC = 2.7V

VCC = 3V

LTC1446L Supply Current

vs Temperature

PIN FUNCTIONS

CLK: The Serial Interface Clock.

DIN: The Serial Interface Data.

CS/LD: The Serial Interface Enable and Load Control.

When CS/LD is low the CLK signal is enabled, so the data

can be clocked in. When CS/LD is pulled high data is

loaded from the shift register into the DAC registers,

updating the DAC outputs.

DOUT: The output of the shift register which becomes valid

on the rising edge of the serial clock.

GND: Ground.

VOUT A,VOUT B: Buffered DAC Outputs.

VCC: Positive Supply Input.

4.5V

≤ VCC ≤ 5.5V (LTC1446), 2.7V ≤ VCC ≤ 5.5V

(LTC1446L). Requires a bypass capacitor to ground.

TEMPERATURE (

°C)

–55 –35 –15

85 105

900

910

930

940

970

1446/46L G11

920

125

950

960

VCC = 5.5V

VCC = 4.5V

VCC = 5V

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