LTC1454L データシートの表示（PDF） - Linear Technology

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LTC1454L

Dual 12-Bit Rail-to-Rail Micropower DACs

Linear Technology 

LTC1454/LTC1454L

TYPICAL PERFORMANCE CHARACTERISTICS

LTC1454

Differential Nonlinearity

0.5

0.4

0.3

0.2

0.1

0

–0.1

–0.2

–0.3

–0.4

–0.5

0 512 1024 1536 2048 2560 3072 3584 4095

CODE

1454 G08

LTC1454 Minimum Output

Voltage vs Output Sink Current

1000

900 REFLO = GND

X1/X2 = GND 125°C

25°C

800

700

600

–55°C

500

400

300

200

100

0.1

0

5 10 15 20 25 30

OUTPUT SINK CURRENT (mA)

1454 G04

LTC1454 Full-Scale Voltage vs

Temperature

4.110

4.105

4.100

4.095

4.090

4.085

4.080

–55 –25

5 35 65

TEMPERATURE (°C)

95 125

1454 G02

LTC1454

Integral Nonlinearity

2.0

1.6

1.2

0.8

0.4

0

–0.4

–0.8

–1.2

–1.6

–2.0

0 512 1024 1536 2048 2560 3072 3584 4095

CODE

1454 G07

LTC1454 Output Swing vs

Load Resistance

4.5

REFLO = GND

4.0 X1/X2 = GND

3.5

3.0

2.5

2.0

RL

1.5

1.0

0.5

0

10

100

1k

LOAD RESISTANCE (Ω)

10k

1454 G05

LTC1454

Supply Current vs Temperature

760

750

740

VCC = 5.5V

730

720

VCC = 5V

710

700

690

–55 –25

VCC = 4.5V

5 35 65

TEMPERATURE (°C)

95 125

1454 G01

Minimum Supply Headroom for

Full Output Swing vs Load Current

1.0

∆VOUT < 1LSB

REFLO = GND

0.8 X1/X2 = GND

CODE: ALL 1's

VOUT = 4.095V

0.6

0.4

0.2

0

0 5 10 15 20 25 30

LOAD CURRENT (mA)

1454 G03

LTC1454 Output Swing vs

Load Resistance

4.5

REFLO = GND

4.0

X1/X2 = GND

3.5

3.0

VCC

2.5

RL

2.0

1.5

1.0

0.5

0

10

100

1k

10k

LOAD RESISTANCE (Ω)

1458 G06

LTC1454 Supply Current vs

Logic Input Voltage

2.6

2.1

1.6

1.1

0.6

0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

LOGIC INPUT VOLTAGE (V)

1454 G09

4

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