LTC2493 datasheet(7/32 Pages) LINER

Part #	LTC2493

Description	24-Bit 2-/4-Channel ADC with Easy Drive Input Current Cancellation and I2C Interface

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Manufacturer	LINER [Linear Technology]

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LTC2493

2493fa

INPUT DIFFERENTIAL VOLTAGE (V)

0.4

0.6

0.8

1.0

0.5

0.7

0.9

–1.5

–0.5

0.5

1.5

2493 G10

2.5

–2

–2.5

–1

0

1

2

VCC = 5V

VREF = 5V

VIN(CM) = 2.5V

TA = 25°C

FO = GND

VIN(CM) (V)

–1

0.8

0.9

1.0

2

4

2493 G11

0.7

0.6

0

1

3

5

6

0.5

0.4

VCC = 5V

VREF = 5V

VIN = 0V

TA = 25°C

FO = GND

TEMPERATURE (

°C)

–45

0.4

0.5

0.6

0.7

0.8

1.0

–30 –15

15

0

30 45 60

2493 G12

75 90

0.9

VCC = 5V

VREF = 5V

VIN = 0V

VIN(CM) = GND

FO = GND

VCC (V)

2.7

0.8

0.9

1.0

3.9

4.7

2493 G13

0.7

0.6

3.1

3.5

4.3

5.1

5.5

0.5

0.4

VREF = 2.5V

VIN = 0V

VIN(CM) = GND

TA = 25°C

FO = GND

VREF (V)

0

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1

2

3

4

2493 G14

5

VCC = 5V

VIN = 0V

VIN(CM) = GND

TA = 25°C

FO = GND

VIN(CM) (V)

–1

0.1

0.2

0.3

2

4

2493 G15

0

–0.1

0

1

3

5

6

–0.2

–0.3

VCC = 5V

VREF = 5V

VIN = 0V

TA = 25°C

FO = GND

TEMPERATURE (

°C)

–45

–0.3

–0.2

0

0.1

0.2

–15

15 30

90

2493 G16

–0.1

–30

0

45 60 75

0.3

VCC = 5V

VREF = 5V

VIN = 0V

VIN(CM) = GND

FO = GND

VCC (V)

2.7

0.1

0.2

0.3

3.9

4.7

2493 G17

0

–0.1

3.1

3.5

4.3

5.1

5.5

–0.2

–0.3

REF+ = 2.5V

REF– = GND

VIN = 0V

VIN(CM) = GND

TA = 25°C

FO = GND

VREF (V)

0

–0.3

–0.2

–0.1

0

0.1

0.2

0.3

1

2

3

4

2493 G18

5

VCC = 5V

REF– = GND

VIN = 0V

VIN(CM) = GND

TA = 25°C

FO = GND

Typical perForMance characTerisTics

RMS Noise

vs Input Differential Voltage

RMS Noise vs VIN(CM)

RMS Noise vs Temperature (TA)

RMS Noise vs VCC

RMS Noise vs VREF

Offset Error vs VIN(CM)

Offset Error vs Temperature

Offset Error vs VCC

Offset Error vs VREF

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