LTC1661CMS8 データシートの表示（PDF） - Linear Technology

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LTC1661CMS8

Micropower Dual 10-Bit DAC in MSOP

Linear Technology 

TYPICAL PERFORMANCE CHARACTERISTICS

LTC1661

Integral Nonlinearity (INL)

2.0

1.5

1.0

0.5

0

–0.5

–1.0

–1.5

–2.0

0

256

512

768

1023

CODE

1661 G01

Minimum VOUT vs Load Current

(Output Sinking)

1400

VCC = 5V

1200 CODE = 0

125°C

1000

800

25°C

600

–55°C

400

200

0

0

2

4

6

8

10

| | IOUT (mA) (SINKING)

1661 G04

Load Regulation

vs Output Current

2.0 VCC = VREF = 5V

1.5 CODE = 512

1.0

0.5

0

–0.5

–1.0

–1.5

–2.0

SOURCE

SINK

–2

–1

0

1

IOUT (mA)

2

1661 G07

Differential Nonlinearity (DNL)

0.75

0.60

0.40

0.20

0

–0.20

–0.40

–0.60

–0.75

0

256

512

768

1023

CODE

1661 G02

Mid-Scale Output Voltage

vs Load Current

3.0

2.9

VREF = VCC

CODE = 512

2.8

VCC = 5.5V

2.7

2.6

2.5

VCC = 5V

2.4

2.3

VCC = 4.5V

2.2

2.1

2.0

SOURCE

SINK

–30 –20 –10 0 10

IOUT (mA)

20 30

1661 G05

Load Regulation

vs Output Current

2.0 VCC = VREF = 3V

1.5 CODE = 512

1.0

0.5

0

–0.5

–1.0

–1.5

–2.0

SOURCE

SINK

–500

0

IOUT (µA)

500

1661 G08

Minimum Supply Headroom vs

Load Current (Output Sourcing)

1400

1200

VREF = 4.096V

∆VOUT < 1LSB

CODE = 1023

1000

125°C

800

25°C

600

–55°C

400

200

0

0

2

4

6

8

10

| | IOUT (mA) (Sourcing)

1661 G03

Mid-Scale Output Voltage

vs Load Current

2.0

1.9

VREF = VCC

CODE = 512

1.8

1.7

VCC = 3.6V

1.6

1.5

VCC = 3V

1.4

1.3

VCC = 2.7V

1.2

1.1

1.0

SOURCE SINK

–15 –12 –8 –4 0 4 8

IOUT (mA)

12 15

1661 G06

Large-Signal Step Response

5

VCC = VREF = 5V

4

CODE = 922

10% TO

90% STEP

3

2

1

CODE = 102

0

0

20

40

60

TIME (µs)

80

100

1661 G09

1661fa

5

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