Rainbow-electronics MAX5419 Manual do Utilizador descarregar pdf (Página 5)

MAX5417/MAX5418/MAX5419

256-Tap, Nonvolatile, I

C-Interface,

Digital Potentiometers

_______________________________________________________________________________________ 5

TAP-TO-TAP SWITCHING TRANSIENT

MAX5417 toc04

10mV/div

SDA

2V/div

1µs/div

MAX5417

= 10pF

FROM TAP 127

TO TAP 128

H = V

WIPER TRANSIENT AT POWER-ON

(MAX5417)

MAX5417 toc05

1V/div

2V/div

4µs/div

= 10pF

TAP = 128

H = V

STANDBY SUPPLY CURRENT

vs. TEMPERATURE

MAX5417 toc01

TEMPERATURE (°C)

STANDBY SUPPLY CURRENT (µA)

603510-15

0.2

0.4

0.6

0.8

1.0

-40 85

WIPER RESISTANCE vs. TAP POSITION

(MAX5417)

MAX5417 toc02

TAP POSITION

RESISTANCE (Ω)

224192160128966432

100

200

300

400

500

600

700

0 256

= 2.7V

SRC

= 50µA

END-TO-END RESISTANCE % CHANGE

vs. TEMPERATURE

MAX5417 toc03

TEMPERATURE (°C)

END-TO-END RESISTANCE % CHANGE

603510-15

-0.8

-0.6

-0.4

-0.2

0.2

0.4

0.6

0.8

1.0

-1.0

-40 85

Typical Operating Characteristics

= +5V, T

= +25°C, unless otherwise noted.)

MIDSCALE WIPER RESPONSE vs. FREQUENCY

(MAX5417)

MAX5417 toc06

FREQUENCY (kHz)

WIPER RESPONSE (dB)

10010

-25

-20

-10

-15

-5

MAX5417

TAP = 128

= 50pF

= 10pF

-30

1 1000

DNL vs. TAP POSITION

(MAX5417)

MAX5417 toc07

TAP POSITION

RESISTANCE DNL (LSB)

224192160128966432

-0.2

-0.1

0.1

0.2

0.3

0.4

0.5

-0.3

0 256

VARIABLE-RESISTOR MODE

1 2 3 4 5 6 7 8 9 10 ... 13 14

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