LTC2655 View Datasheet(PDF) - Linear Technology

Part Name

Description

MFG CO.

LTC2655

Quad I2C 16-/12-Bit Rail-to-Rail DACs with 10ppm/°C Max Reference

Linear Technology 

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LTC2655

TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted.

LTC2655

Offset Error vs Reference Input

2.0

VCC = 5V

1.5 OFFSET ERROR OF 4 CHANNELS

1.0

0.5

0

–0.5

–1.0

–1.5

–2

0.5

1

1.5

2

REFERENCE VOLTAGE (V)

2.5

2655 G24

Gain Error vs Reference Input

64

LTC2655-16

48 VCC = 5.5V

GAIN ERROR OF 4 CHANNELS

32

16

0

–16

–32

–48

–64

0.5

1

1.5

2

REFERENCE VOLTAGE (V)

2.5

2655 G25

ICC Shutdown vs VCC

450

400

350

300

250

200

150

100

50

0

2.5 3 3.5 4 4.5

VCC (V)

5 5.5

2655 G26

Supply Current vs Logic Voltage

2.6

SWEEP SCL AND SDA

BETWEEN

2.4 0V AND VCC

2.2

VCC = 5V

(LTC2655-H)

2.0

1.8

VCC = 3V

(LTC2655-L)

1.6

1.4

0

1

2

3

4

5

LOGIC VOLTAGE (V)

2655 G27

Supply Current vs Temperature

3.0

2.5

LTC2655-H

2.0 VCC = 5V, CODE = MS

INTERNAL REFERENCE

1.5

LTC2655-L

VCC = 3V, CODE = MS

INTERNAL REFERENCE

1.0

–50 –30 –10 10 30 50 70 90 110 130

TEMPERATURE (°C)

2655 G28

ICC Shutdown vs Temperature

5

4

LTC2655-H

3

VCC = 5V

2

1

LTC2655-L

VCC = 3V

0

–50 –30 –10 10 30 50 70 90 110 130

TEMPERATURE (°C)

2655 G29

Multiplying Bandwidth

8

6

4

2

0

–2

–4

–6

–8

VS = 5V

VREF(DC) = 2V

–10 VREF(AC) = 0.2VP-P

CODE = FULL-SCALE

–12

1k

10k

100k

FREQUENCY (Hz)

Large-Signal Response

VCC = 5V, VREF = 2.048V

ZERO-SCALE TO FULL-SCALE

VOUT

1V/DIV

1M

2655 G30

2μs/DIV

14

Mid-Scale Glitch Impulse

SCL

5V/DIV

9TH CLOCK OF

3RD DATA BYTE

VOUT

5mV/DIV

LTC2655-H16, VCC = 5V

7nV-s TYP

LTC2655-L16, VCC = 3V

4nV-s TYP

2655 G31

2μs/DIV

2655 G32

2655f

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