Digital Potentiometers

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5

SUPPLY CURRENT

vs. TEMPERATURE

TEMPERATURE (

°C)

60

35

10

-15

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

0

-40

85

0

100

50

200

150

300

250

350

450

400

500

064

96

32

128 160 192 224 256

WIPER RESISTANCE

vs. INPUT CODE

INPUT CODE

TAP-TO-TAP SWITCHING TRANSIENT

MAX5477/78/79 toc03

1

µs/div

SDA

2V/div

W_

20mV/div

MAX5478

FROM TAP 00 TO TAP 04

TAP-TO-TAP SWITCHING TRANSIENT

MAX5477/78/79 toc04

400ns/div

SDA

2V/div

W_

20mV/div

MAX5479

FROM TAP 00 TO TAP 04

WIPER TRANSIENT AT POWER-ON

MAX5477/78/79 toc05

4

µs/div

2V/div

W_

1V/div

MAX5478

TAP = 128

WIPER TRANSIENT AT POWER-ON

MAX5477/78/79 toc06

2

µs/div

2V/div

W_

1V/div

MAX5479

TAP = 128

-0.3

-0.2

-0.1

0

0.1

0.2

0.3

064

32

96

128 160 192 224 256

INTEGRAL NONLINEARITY

vs. CODE (VDM MODE)

CODE

MAX5478

-0.3

-0.2

-0.1

0

0.1

0.2

0.3

064

32

96

128 160 192 224 256

DIFFERENTIAL NONLINEARITY

vs. CODE (VDM MODE)

CODE

MAX5478

-0.3

-0.2

-0.1

0

0.1

0.2

0.3

064

32

96

128 160 192 224 256

INTEGRAL NONLINEARITY

vs. CODE (VRM MODE)

CODE

MAX5478

Typical Operating Characteristics