ADS-928MM 데이터 시트보기 (PDF) - DATEL Data Acquisition products
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ADS-928MM Datasheet PDF : 4 Pages
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ADS-928
500kHz, 14-Bit Sampling A/D Converters
UNIPOLAR
SCALE
FS -1 LSB
7/8 FS
3/4 FS
1/2 FS
1/4 FS
1/8 FS
1 LSB
0
INPUT RANGES, Vdc
0 to ·10V
-9.999390
-8.750000
-7.500000
-5.000000
-2.500000
-1.250000
-0.000610
0.000000
STRAIGHT BIN. COMP. BINARY
OUTPUT CODING COMP. BINARY
MSB
LSB MSB
LSB MSB
LSB
11 1111 1111 1111 00 0000 0000 0000 01 1111 1111 1111
11 1000 0000 0000 00 0111 1111 1111 01 1000 0000 0000
11 0000 0000 0000 00 1111 1111 1111 01 0000 0000 0000
10 0000 0000 0000 01 1111 1111 1111 00 0000 0000 0000
01 0000 0000 0000 10 1111 1111 1111 10 0000 0000 0000
00 1000 0000 0000 11 0111 1111 1111 10 1000 0000 0000
00 0000 0000 0001 11 1111 1111 1110 10 0000 0000 0001
00 0000 0000 0000 11 1111 1111 1111 10 0000 0000 0000
OFF. BINARY COMP. OFF. BIN.
Table 3. Output Coding for Unipolar Operation
INPUT RANGE
±5Vdc
-4.99939
-3.75000
-2.50000
0.00000
+2.50000
+3.75000
+4.99939
+5.00000
BIPOLAR
SCALE
+FS -1 LSB
+3/4 FS
+1/2 FS
0
-1/2 FS
-3/4 FS
-FS +1 LSB
-FS
+15V
-15V +5V
4.7μF 4.7μF
+
+
4.7μF
+
0.1μF 0.1μF
0.1μF
+15V
GAIN
ADJUST
12
15
13
10
11
20KΩ
6
GAIN ADJUST
-15V
1
+
0.1μF
4.7μF
2
+10V REF. OUT
BIPOLAR
ADS-928
0 to -10V
+5V DC
3
ANALOG INPUT
8
COMP BIN
32
START CONVERT
14
4 NO CONNECTION
SIGNAL GROUND
5
09 ENABLE
31 BIT 1 (MSB)
30 BIT 1 (MSB)
29 BIT 2
28 BIT 3
27 BIT 4
26 BIT 5
25 BIT 6
24 BIT 7
23 BIT 8
22 BIT 9
21 BIT 10
20 BIT 11
19 BIT 12
18 BIT 13
17 BIT 14 (LSB)
07 OVERFLOW
16 EOC
-15V
20KΩ
+15V
ZERO/OFFSET ADJUST
Figure 3. Typical ADS-928 Connection Diagram
0.235 MAX.
(5.969)
0.035/0.015
(0.889/0.381)
0.021/0.016
(0.534/0.406)
0.100 BSC
(2.54)
0.045/0.035
(1.143/0.889)
0.11/0.09
(2.80/2.28)
0.190 MAX.
(4.826)
PIN 1
INDEX
1 32
2 31
3 30
4 29
5 28
6 27
7 26
8 25
9 24
10 23
11 22
12 21
13 20
14 19
15 18
16 17
0.200/0.175
(5.08/4.44)
SEATING
PLANE
1.11/1.08
(28.20/27.43)
0.015/0.009
(0.381/0.228)
0.92/0.89
(23.37/22.60)
MECHANICAL DIMENSIONS
INCHES (mm)
Figure 4. ADS-928 FFT Analysis
MODEL OPERATING
NUMBER TEMP. RANGE
ORDERING INFORMATION
SEAL
ACCESSORIES
ADS-928MC 0 to +70°C Hermetic ADS-EVAL1 Evaluation Board (without ADS-928)
ADS-928MM -55 to +125°C
Hermetic
Receptacle for PC board mounting can be ordered
through AMP Inc., Part # 3-331272-8 (Component Lead
Socket), 32 required.
For availibility of MIL-STD-883B versions, contact DATEL.
DATEL is a registered trademark of DATEL, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
ITAR and ISO 9001/14001 REGISTERED
DATEL, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information
contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of
licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice.
© 2015 DATEL, Inc.
www.datel.com • e-mail: help@datel.com
27 Jul 2015 MDA_ADS-928.B02 Page 4 of 4
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