LTC1257CS8-PBF 查看數據表（PDF） - Linear Technology

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LTC1257CS8-PBF

Complete Single Supply 12-Bit Voltage Output DAC in SO-8

Linear Technology 

BLOCK DIAGRAM

LOGIC

SUPPLY

5V REGULATOR

CLK

DIN

LOAD

REF

12-BIT

SHIFT REGISTER

12

12-BIT LATCH

12

2.048V REFERENCE

DAC

+

–

LTC1257

VCC

DOUT

GND

VOUT

1257 BD

TIMING DIAGRAM

t1

t2

CLK

DIN

B11

MSB

t4

B10

LOAD

DOUT

B11

(PREVIOUS WORD)

t8

B10

t6

t7

t3

B1

B0

LSB

t5

B1

B11

B0

CURRENT WORD

1257 TD

1257fc

7

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