AD7843ARQ-REEL7 datasheet(7/16 Pages) AD

部件名	AD7843ARQ-REEL7

功能描述	Touch Screen Digitizer

Download	16 Pages

Scroll/Zoom	100%

制造商	AD [Analog Devices]

网页	http://www.analog.com

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7 / 16 page

REV. 0

AD7843

–7–

SAMPLE RATE – kHz

7.5

130

3.5

2.5

1.5

0.5

115

85

70

55

40

25

10

6.5

5.5

4.5

100

TPC 7. Reference Current vs. Sample Rate

+VCC –V

10

5.5

7

6

5

4

4.5

4.0

3.5

3.0

2.5

2.0

9

8

5.0

Y+

X+

X–

Y–

TPC 8. Switch-On-Resistance vs. +VCC (X+, Y+: +VCC to

Pin; X–, Y–: Pin to GND)

SAMPLING RATE – kSPS

2.0

195

1.0

0.2

0

175

115

95

75

55

35

15

1.4

1.2

135

155

0.4

0.6

0.8

1.6

1.8

INL: R = 2k

INL: R = 500

DNL: R = 500

DNL: R = 2k

TPC 9. Maximum Sampling Rate vs. RIN

TEMPERATURE – C

14

6

4

3

2

60

40

20

0

–20

–40

10

8

80

12

13

5

9

7

11

TPC 10. Reference Current vs. Temperature

TEMPERATURE – C

9

100

6

5

4

3

60

40

20

0

–20

–40

8

7

80

Y+

X+

X–

Y–

TPC 11. Switch-On-Resistance vs. Temperature (X+, Y+:

+VCC to Pin; X–, Y–: Pin to GND)

FREQUENCY – kHz

0

60.0

60

80

100

120

52.5

45.0

30.0

22.5

15.0

7.50

0

20

40

37.5

fSAMPLE = 125kHz

fIN = 15kHz

SNR = 68.34dB

TPC 12. Auxiliary Channel Dynamic Performance

类似零件编号 - AD7843ARQ-REEL7

制造商	部件名	数据表	功能描述
Analog Devices	AD7843ARQ-REEL7	440Kb / 21P	Touch Screen Digitizer REV. B
Analog Devices	AD7843ARQ-REEL7	304Kb / 21P	Touch Screen Digitizer

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