LTC1290BMJ datasheet(6/32 Pages) LINER

Part #	LTC1290BMJ

Description	Single Chip 12-Bit Data Acquisition System

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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6

LTC1290

1290fe

CC

HARA TERISTICS

A

TYPICALPERFOR

CE

Change in Offset vs Temperature

Change in Linearity vs Reference

Voltage

REFERENCE VOLTAGE, VREF (V)

0

1.25

1.00

0.75

0.50

0.25

0

4

1290 • TPC04

1

2

3

5

VCC = 5V

Change in Gain vs Reference

Voltage

REFERENCE VOLTAGE, VREF (V)

1

–0.2

–0.1

0

5

1290 • TPC05

–0.3

–0.4

–0.5

2

3

4

VCC = 5V

AMBIENT TEMPERATURE, TA (°C)

–50

0.5

0.4

0.3

0.2

0.1

0

–10

30

50

130

1290 • TPC06

–30

10

70

90 110

ACLK = 4MHz

VCC = 5V

VREF = 5V

Change in Gain Error vs

Temperature

AMBIENT TEMPERATURE, TA (°C)

–50

0.5

0.4

0.3

0.2

0.1

0

–10

30

50

130

1290 • TPC08

–30

10

70

90 110

ACLK = 4MHz

VCC = 5V

VREF = 5V

Change in Linearity Error vs

Temperature

AMBIENT TEMPERATURE, TA (°C)

–50

0

0.1

0.3

0.4

0.5

–10

30

50

130

1290 • TPC07

0.2

–30

10

70

90 110

0.6

ACLK = 4MHz

VCC = 5V

VREF = 5V

Maximum ACLK Frequency vs

Source Resistance

RSOURCE (Ω)

100

0

4

5

1k

10 k

100k

1290 • TPC09

3

2

1

VCC = 5V

VREF = 5V

TA = 25°C

+

–

INPUT

VIN

RSOURCE–

* MAXIMUM ACLK FREQUENCY REPRESENTS THE

ACLK FREQUENCY AT WHICH A 0.1LSB SHIFT IN

THE ERROR AT ANY CODE TRANSITION FROM ITS

4MHz VALUE IS FIRST DETECTED.

Supply Current vs Temperature

Supply Current vs Supply Voltage

Unadjusted Offset Voltage vs

Reference Voltage

SUPPLY VOLTAGE, VCC (V)

46

8

10

1290 • TPC01

26

22

18

14

10

6

2

ACLK = 4MHz

TA = 25°C

AMBIENT TEMPERATURE, TA (°C)

–50

30

10

9

8

7

6

5

4

3

LT1290 • TPC02

–10

70

–30

50

10

90 110 130

ACLK = 4MHz

VCC = 5V

REFERENCE VOLTAGE, VREF (V)

1

5

1290 • TPC03

2

3

4

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

VOS = 0.25mV

VOS = 0.125mV

VCC = 5V

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