AD5247BKS50-RL7 datasheet(10/20 Pages) AD

No de pièce	AD5247BKS50-RL7

Description	128-Position I2C Compatible Digital Potentiometer

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Fabricant	AD [Analog Devices]

Site Internet	http://www.analog.com

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AD5247

FREQUENCY (Hz)

1k

0.25

0.20

0.15

0.30

0.10

0.05

10k

100k

1M

0

C

TA = 25°C

A - VDD = 5.5V

CODE = 0x55

B - VDD = 5.5V

CODE = 0x7F

C - VDD = 2.7V

CODE = 0x55

D - VDD = 2.7V

CODE = 0x7F

D

B

A

Figure 20. IDD vs. Frequency

CODE (Decimal)

0

125

100

75

150

50

25

16

80

128

0

TA = 25°C

RAB = 50kΩ

VDD = 2.7V

VDD = 5.5V

32

48

64

96

112

Figure 21. Wiper Resistance vs. Code vs. VDD

VDD = 5.5V

VA = 5.0V

VB = 0V

VW

CLK

TA = 25°C

RAB = 10kΩ

FCLK = 100kHz

5V

0V

1

µs/DIV

Figure 22. Digital Feedthrough

VDD = 5.5V

VA = 5.0V

VB = 0V

CODE 0x40 to 0x3F

TA = 25°C

RAB = 10kΩ

VW

200ns/DIV

Figure 23. Midscale Glitch, Code 0x40 to 0x3F

VDD = 5.5V

VA = 5.0V

VB = 0V

CODE 0x00 to 0x7F

TA = 25°C

RAB = 10kΩ

VW

4

µs/DIV

Figure 24. Large Signal Settling Time

Rev. 0 | Page 10 of 20

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