LTC1454CS datasheet(4/12 Pages) LINER

4 / 12 page

LTC1454/LTC1454L

TYPICAL PERFORMANCE CHARACTERISTICS

Minimum Supply Headroom for

Full Output Swing vs Load Current

LTC1454 Output Swing vs

Load Resistance

CODE

0.5

0.4

0.3

0.2

0.1

–0.1

–0.2

–0.3

–0.4

–0.5

1024

2048 2560

1454 G08

512

1536

3072 3584 4095

CODE

2.0

1.6

1.2

0.8

0.4

–0.4

–0.8

–1.2

–1.6

–2.0

1024

2048 2560

1454 G07

512

1536

3072 3584 4095

LOAD CURRENT (mA)

1.0

0.8

0.6

0.4

0.2

1454 G03

∆VOUT < 1LSB

REFLO = GND

X1/X2 = GND

CODE: ALL 1's

VOUT = 4.095V

LTC1454 Minimum Output

Voltage vs Output Sink Current

LTC1454 Output Swing vs

Load Resistance

OUTPUT SINK CURRENT (mA)

1000

900

800

700

600

500

400

300

200

100

0.1

1454 G04

125

°C

REFLO = GND

X1/X2 = GND

–55

°C

LOAD RESISTANCE (

Ω)

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

100

10k

1454 G05

REFLO = GND

X1/X2 = GND

LOAD RESISTANCE (

Ω)

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

100

10k

1458 G06

REFLO = GND

X1/X2 = GND

VCC

LTC1454 Full-Scale Voltage vs

Temperature

TEMPERATURE (

°C)

–55

–25

1454 G02

125

4.110

4.105

4.100

4.095

4.090

4.085

4.080

TEMPERATURE (

°C)

–55

–25

1454 G01

125

760

750

740

730

720

710

700

690

VCC = 5.5V

VCC = 5V

VCC = 4.5V

LTC1454

Supply Current vs Temperature

LOGIC INPUT VOLTAGE (V)

2.6

2.1

1.6

1.1

0.6

1.0

2.0 2.5

4.5 5.0

1454 G09

0.5

1.5

3.0 3.5 4.0

LTC1454 Supply Current vs

Logic Input Voltage

LTC1454

Differential Nonlinearity

LTC1454

Integral Nonlinearity

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