ADS-119ME Просмотр технического описания (PDF) - DATEL Data Acquisition products

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производитель

ADS-119ME

12-Bit, 10MHz, Low-Power Sampling A/D Converters

DATEL Data Acquisition products  

Table 1. Output Coding for Bipolar Operation

BIPOLAR SCALE

+FS–1 LSB

+3/4 FS

+1/2 FS

0

–1/2 FS

–3/4 FS

–FS +1 LSB

–FS

ADS-118 INPUT

RANGE (±1V)

+1.49927V

+1.12500V

+0.75000V

0.00000V

–0.75000V

–1.12500V

–1.49927V

–1.50000V

OUTPUT CODING

OFFSET BINARY

MSB LSB

1111 1111 1111

1110 0000 0000

1100 0000 0000

1000 0000 0000

0100 0000 0000

0010 0000 0000

0000 0000 0001

0000 0000 0000

ADS-119

12-Bit, 10MHz, Low-Power Sampling A/D Converters

GAIN

ADJUST

SIGNAL

INPUT

507

1.98k7

2k7

+15V

To Pin 19

of ADS-119

–15V

Figure 3. Optional Calibration Circuit, ADS-119

+5V ~

4.7μF

0.1μF

13, 20

14

–5V

4.7μF

0.1μF

+5V

20

18, 20

OFFSET

ADJUST

17

20k7

–5V

ADS-119

12 BIT 1 (MSB)

11 BIT 2

10 BIT 3

9 BIT 4

8 BIT 5

7 BIT 6

6 BIT 7

5 BIT 8

4 BIT 9

3 BIT 10

2 BIT 11

1 BIT 12 (LSB)

15 DATA VALID

19 ANALOG INPUT

16 START CONVERT

~ A single +5V supply should be used for both the +5V analog and +5V digital.

If separate supplies are used, the difference between the two cannot exceed 100mV.

Figure 4. Typical Connection Diagram

DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: help@datel.com

26 Jun 2015 MDA_ADS-119.C02 Page 5 of 10

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