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LTC1287BCJ8

3V Single Chip 12-Bit Data Acquisition System

Linear Technology 

LTC1287

TYPICAL PERFOR A CE CHARACTERISTICS

Supply Current vs Supply Voltage

2.8

2.6 CLK = 500kHz

TA = 25°C

2.4

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6

SUPPLY VOLTAGE (V)

LTC1287 G1

Change in Linearity vs Reference

Voltage

0.5

VCC = 3V

0.4

0.3

0.2

0.1

0

0 0.5 1.0 1.5 2.0 2.5 3.0

REFERENCE VOLTAGE (V)

LTC1287 G4

Change in Linearity vs

Temperature

0.5

VCC = 3V

VREF = 2.5V

0.4 CLK = 500kHz

0.3

0.2

0.1

0

–40 –20 0 20 40 60 80 100

AMBIENT TEMPERATURE (°C)

LTC1287 G7

Supply Current vs Temperature

1.9

CLK = 500kHz

1.8

VCC = 3V

1.7

1.6

1.5

1.4

1.3

–40 –25 –10 5 20 35 50 65 80 95

TEMPERATURE (°C)

LTC1287 G2

Change in Gain vs Reference

Voltage

0

VCC = 3V

–0.1

–0.2

–0.3

–0.4

–0.5

0

0.5 1.0 1.5 2.0 2.5 3.0

REFERENCE VOLTAGE (V)

LTC1287 G5

Change in Gain vs Temperature

0.5

VCC = 3V

VREF = 2.5V

0.4 CLK = 500kHz

0.3

0.2

0.1

0

–40 –20 0 20 40 60 80 100

AMBIENT TEMPERATURE (°C)

LTC1287 G8

4

Unadjusted Offset Voltage vs

Reference Voltage

0.9

VCC = 3V

0.8

0.7

VOS = 0.250mV

0.6

0.5

0.4

0.3

VOS = 0.125mV

0.2

0.1

0

0 0.5 1.0 1.5 2.0 2.5 3.0

REFERENCE VOLTAGE (V)

LTC1287 G3

Change in Offset vs Temperature

0.5

VCC = 3V

VREF = 2.5V

0.4 CLK = 500kHz

0.3

0.2

0.1

0

–40 – 20 0 20 40 60 80 100

AMBIENT TEMPERATURE (°C)

LTC1287 G6

DOUT Delay Time vs Temperature

350

VCC = 3V

300

MSB-FIRST DATA

250

200

LSB-FIRST DATA

150

100

50

0

–40 –20 0 20 40 60 80 100

AMBIENT TEMPERATURE (°C)

LTC1287 G9

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