ADS-953MC データシートの表示（PDF） - Murata Power Solutions

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ADS-953MC

18-Bit, 1MHz, Low-Distortion Sampling A/D Converters

Murata Power Solutions 

®

®

ADS-953

Pin 5 (ADS-953)

+5V DIGITAL

10kΩ

14

6

GAIN

ADJUST

10µF

–15V

10µF

10µF

+15V

0.1µF 13 DIGITAL

GROUND

8

0.1µF

0.1µF

12 ANALOG

GROUND

9

+5V ANALOG

–5V ANALOG

+

10µF

+

0.1µF

10µF 0.1µF

10

3 ANALOG

GROUND

11

0.1µF 10µF

5 +5V

REF. OUT

15

EOC

ADS-953

2 BIT 1 (MSB)

1 BIT 2

32 BIT 3

31 BIT 4

30 BIT 5

29 BIT 6

28 BIT 7

27 BIT 8

26 BIT 9

25 BIT 10

24 BIT 11

23 BIT 12

22 BIT 13

21 BIT 14

20 BIT 15

19 BIT 16

18 BIT 17

17 BIT 18 (LSB)

16

START CONVERT

COMPENSATION 7

47µF

+

4

ANALOG INPUT

Figure 2. Typical ADS-953 Connection Diagram

N

N+1

START

CONVERT

500ns typ.

INTERNAL S/H

5ns typ.

740ns typ.

Hold

Acquisition Time

260ns typ.

EOC

65ns typ.

Conversion Time

730ns typ.

20ns typ.

Invalid Data

20ns

OUTPUT

DATA

Data N-2 Valid

Data N-1 Valid

N

980ns typ.

Scale is approximately 50ns per division.

Figure 3. ADS-953 Timing Diagram

5

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