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.

LTC2655-12

Integral Nonlinearity (INL)

1.0

VCC = 5V

VREF = 2.048V

0.5

0

–0.5

–1.0

8

LTC2655

1024

2048

CODE

3072

4095

2655 G15

Load Regulation

10

INTERNAL REF

8 CODE = MID-SCALE

6

4

2

0

–2

–4

–6

–8

VCC = 5V (LTC2655-H)

VCC = 3V (LTC2655-L)

–10

–50 –40 –30 –20 –10 0 10 20 30 40 50

IOUT (mA)

2655 G18

Differential Nonlinearity (INL)

1.0

VCC = 3V

VREF = 1.25V

0.5

Settling to ±1LSB Falling

SCL

3V/DIV

4.0μs

0

VOUT

1mV/DIV

–0.5

–1.0

8

1024

2048

CODE

3072

4095

2655 G16

3/4 TO 1/4 SCALE STEP

VCC = 3V, VFS = 2.5V

RL = 2k, CL = 200pF

AVERAGE OF 2048 EVENTS

2μs/DIV

2655 G17

Current Limiting

0.20

INTERNAL REF

0.15 CODE = MID-SCALE

0.10

0.05

0

–0.05

–0.10

–0.15

–0.20

–50 –40 –30 –20 –10

VCC = 5V (LTC2655-H)

VCC = 3V (LTC2655-L)

0 10 20 30 40 50

IOUT (mA)

2655 G19

Headroom at Rails

vs Output Current

5.0

4.5 5V (LTC2655-H) SOURCING

4.0

3.5

3.0 3V (LTC2655-L) SOURCING

2.5

2.0

1.5

1.0

5V (LTC2655-H) SINKING

0.5 3V (LTC2655-L) SINKING

0

0 1 2 3 4 5 6 7 8 9 10

IOUT (mA)

2655 G20

Offset Error vs Temperature

3

2

1

0

–1

–2

–3

–50 –30 –10 10 30 50 70 90 110 130

TEMPERATURE (°C)

2655 G21

Zero-Scale Error vs Temperature

3.0

2.5

2.0

1.5

1.0

0.5

0

–50 –30 –10 10 30 50 70 90 110 130

TEMPERATURE (°C)

2655 G22

Gain Error vs Temperature

64

LTC2655-16

48

32

16

0

–16

–32

–48

–64

–50 –30 –10 10 30 50 70 90 110 130

TEMPERATURE (°C)

2655 G23

2655f

13

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