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ADC-304-3 View Datasheet(PDF) - DATEL Data Acquisition products

Part NameDescriptionManufacturer
ADC-304-3 8-Bit, 20MHz, Low-Power Flash A/D Converters Datel
DATEL Data Acquisition products  Datel
ADC-304-3 Datasheet PDF : 5 Pages
1 2 3 4 5
ADC-304
®
®
Table 1. Output Coding for +5V Power Supply Operation (+3 to +5V Signal Input)
Unipolar
Scale
+FS – 1SLB
+7/8FS
+3/4FS
+1/2FS
+1/4FS
+1/8FS
+1LSB
Zero
MINV
LINV
+4.9922V
+4.7500V
+4.5000V
+4.0000V
+3.5000V
+3.2500V
+3.0078V
+3.0000V
Straight
Binary
0
0
11111111
11011111
10111111
01111111
00111111
00011111
00000001
00000000
Complementary
Two’s
Two’s Complement Complement
0
1
10000000
10100000
11000000
00000000
01000000
01100000
01111110
01111111
1
0
01111111
01011111
00111111
11111111
10111111
10011111
10000001
10000000
Complementary
Binary
1
1
00000000
00100000
01000000
10000000
11000000
11100000
11111110
11111111
Table 2. Output Coding for ±5V Power Supply Operation (0 to –2V Signal Input)
Unipolar
Scale
Zero
–1LSB
–1/8FS
–1/4FS
–1/2FS
–3/4FS
–7/8FS
–FS + 1SLB
MINV
LINV
0.0000V
–0.0078V
–0.2500V
–0.5000V
–1.0000V
–1.5000V
–1.7500V
–1.9922V
Straight
Binary
0
0
11111111
11111110
11011111
10111111
01111111
00111111
00011111
00000000
Complementary
Two’s
Two’s Complement Complement
0
1
10000000
10000001
10100000
11000000
00000000
01000000
01100000
01111111
1
0
01111111
01111110
01011111
00111111
11111111
10111111
10011111
10000000
Complementary
Binary
1
1
00000000
00000001
00100000
01000000
10000000
11000000
11100000
11111111
APPLICATION CIRCUITS
+5V
+5V
+5V
(MSB)
BIT 1
BIT 2
BIT 3
BIT 4
LINV
BIT 5
BIT 6
BIT 7
BIT 8
(LSB)
1 BIT 1(MSB)
MINV 28
2 BIT 2
VM 27
3 BIT 3
VB 26
4 BIT 4
ANA GND 25
5 DIG GND
N.C. 24
6 +5V
ANA IN 23
7 –5.2V
N.C. 22
8 –5.2V
9 –5.2V
ANA IN 21
N.C. 20
10 +5V
ANA GND 19
11 DIG GND
VT 18
12 LINV
CLOCK 17
13 BIT 5
(LSB) BIT 8 16
14 BIT 6
BIT 7 15
MINV
+3V
VIN
ANALOG INPUT
+3 to +5V
CLOCK
(TTL LEVEL)
NOTE: 28-pin DIP package shown
Figure 4. Connections for +5V Power Supply Operation
(MSB)
BIT 1
BIT 2
BIT 3
BIT 4
LINV
BIT 5
BIT 6
BIT 7
(LSB)
BIT 8
1 BIT 1(MSB)
MINV 28
2 BIT 2
VM 27
3 BIT 3
VB 26
4 BIT 4
ANA GND 25
5 DIG GND
N.C. 24
6 +5V
ANA IN 23
7 –5.2V
N.C. 22
8 –5.2V
9 –5.2V
ANA IN 21
N.C. 20
10 +5V
ANA GND 19
11 DIG GND
VT 18
12 LINV
CLOCK 17
13 BIT 5
(LSB) BIT 8 16
14 BIT 6
BIT 7 15
MINV
–2V
VIN
ANALOG INPUT
0 to –2V
CLOCK
(TTL LEVEL)
–5.2V
NOTE: 28-pin DIP package shown
Figure 5. Connections for ±5V Power Supply Operation
4
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