LTC1285CS8 Ver la hoja de datos (PDF) - Linear Technology

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LTC1285CS8

3V Micropower Sampling 12-Bit A/D Converters in SO-8 Packages

Linear Technology 

LTC1285/LTC1288

BLOCK DIAGRAM

IN+ (CH0)

IN– (CH1)

VCC (VCC/ V REF)

CS/SHDN

(DIN)

CLK

BIAS AND

SHUTDOWN CIRCUIT

CSAMPLE

–

+

MICROPOWER

COMPARATOR

CAPACITIVE DAC

SERIAL PORT

SAR

DOUT

GND

VREF

PIN NAMES IN PARENTHESES REFER TO THE LTC1288

LTC1285/88 • BD

TEST CIRCUITS

Load Circuit for tdDO, tr and tf

1.4V

DOUT

3k

100pF

TEST POINT

LTC1285/88 • TC01

Voltage Waveforms for DOUT Rise and Fall Times, tr, tf

DOUT

VOH

VOL

tr

tf

LTC1285/88 • TC02

Voltage Waveforms for DOUT Delay Times, tdDO

CLK

DOUT

VIL

tdDO

VOH

VOL

LTC1285/88 • TC03

Load Circuit for tdis and ten

TEST POINT

DOUT

3k

100pF

VCC tdis WAVEFORM 2, ten

tdis WAVEFORM 1

LTC1285/88 • TC04

8

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