LTC1257CS8 datasheet(4/12 Pages) LINER

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LTC1257

TYPICAL PERFORMANCE CHARACTERISTICS

TEMPERATURE (°C)

–50

0.38

0.37

0.36

0.35

0.34

0.33

0.32

0.31

1257 G03

–25

100

125

VCC = 5.25V

VCC = 5V

VCC = 4.75V

Supply Current vs Temperature

OUTPUT SINK CURRENT (

µA)

1000

100

0.1

100

1000

1257 G06

HOT

COLD

ROOM

Pull-Down Voltage vs Output Sink

Current Capability

TEMPERATURE (°C)

–50

2.0495

2.0490

2.0485

2.0480

2.0475

2.0470

2.0465

1257 G07

–25

100

125

VCC = 5V

INTERNAL REFERENCE

OUTPUT LOAD CURRENT (mA)

0.01

0.1

1257 G01

5.0

4.8

4.6

4.4

4.2

4.0

3.8

3.6

3.4

3.2

3.0

VREF = INTERNAL

VOUT = FULL SCALE

TA = 25°C

Minimum Supply Voltage

vs Load Current #1

LOGIC VOLTAGE (V)

0.59

0.54

0.49

0.44

0.39

0.34

1257 G04

VCC = 5V

TA = 25°C

Minimum Supply Voltage

vs Load Current #2

OUTPUT LOAD CURRENT (mA)

0.01

0.1

1257 G02

15.0

14.5

14.0

13.5

13.0

12.5

12.0

11.5

11.0

VREF = 10V

VOUT = FULL SCALE

TA = 25°C

LOAD RESISTANCE (

Ω)

100

10k

1257 G05

5.0

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

FULL SCALE

RL TIED TO GND

ZERO SCALE

RL TIED TO VCC

VCC = 5V

Output Swing vs Load Resistance

Supply Current vs

Logic Input Voltage

Full-Scale Voltage vs

Temperature

TEMPERATURE (°C)

–50

–25

100

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

1257 G08

125

VCC = 5V

INTERNAL REFERENCE

Zero-Scale Voltage vs

Temperature

CODE

2.0

1.6

1.2

0.8

0.4

–0.4

–0.8

–1.2

–1.6

–2.0

1024

2048 2560

1257 G09

512

1536

3072 3584 4096

VCC = 5V

INTERNAL REFERENCE

TA = 25°C

Integral Nonlinearity (INL)

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