ADS8472I BURR-BROWN [Burr-Brown Corporation], ADS8472I Datasheet - Page 9

• Manufacturer Part Number: ADS8472I
• Description: 16-BIT, 1-MSPS, PSEUDO-BIPOLAR, FULLY DIFFERENTIAL INPUT, MICROPOWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH PARALLEL INTERFACE, REFERENCE
• Manufacturer: BURR-BROWN [Burr-Brown Corporation]

NAME
DB2
DB1
DB0
–IN
+IN
NC
REFIN
REFOUT
REFM
RD
+VA
+VBD
4.09714
4.09719
4.09718
4.09717
4.09716
4.09715
4.09713
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4.0972
5000
4500
4000
3500
3000
2500
2000
1500
1000
500
INTERNAL REFERENCE VOLTAGE
0
(8192 Conversion Outputs, Code
4.75
-5
0
15, 46, 47
21, 22, 25
7, 10, 16,
T = 25°C
-4
0
A
11, 12
1, 36
4.85
SUPPLY VOLTAGE
NO
43
44
45
19
18
13
14
5
DC HISTOGRAM
-3
0
Transition)
Supply Voltage - V
-2
0
Output Code
Figure 1.
Figure 4.
4224
4.95
-1
vs
I/O
O
O
O
O
–
–
I
I
I
I
I
3968
0
5.05
+VA = 5 V,
+VBD = 5 V,
T = 25 C,
f = 1 MSPS,
V
Input = Midscale
s
1
D2
D1
D0 (LSB)
Inverting input channel
Noninverting input channel
No connection
Reference input
Reference output. Add 1- F capacitor between the REFOUT pin and REFM pin when internal reference is used.
Reference ground
Synchronization pulse for the parallel output. When CS is low, this serves as output enable and puts the previous
conversion results on the bus.
Analog power supplies, 5-V DC
Digital power supply for bus
A
ref
0
= 4.096 V,
2
0
5.15
°
3
0
4
0
5.25
TERMINAL FUNCTIONS (continued)
TYPICAL CHARACTERISTICS
5000
4000
3000
9000
2000
1000
8000
7000
6000
45.6
45.2
44.8
44.4
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46
44
(8192 Conversion Outputs, Center
-40
0
-4
0
FREE-AIR TEM PERATURE
+VA = 5 V,
+VBD = 5 V,
f = 1 MSPS,
V
s
-25
ref
All ones
All ones
All ones
-3
T - Free-Air Temperature - C
= 4.096 V
0
SUPPLY CURRENT
A
-10
DC HISTOGRAM
-2
0
Output Code
of Code)
5
Figure 2.
Figure 5.
-1
73
vs
8045
20
0
35
74
1
+VA = 5 V,
+VBD = 5 V,
T = 25 C,
f = 1 MSPS,
V
Input = Midscale
s
A
ref
DESCRIPTION
50
= 4.096 V,
0
2
°
º
65
3
0
80
0
4
D2
D1
D0 (LSB)
4.0955
4.0965
4.0975
45.6
45.2
44.8
44.4
4.095
4.098
4.097
4.096
46
44
INTERNAL REFERENCE VOLTAGE
4.75
-40
T = 25 C,
f = 1 MSPS,
V
s
FREE-AIR TEMPERATURE
A
ref
-25 -10
4.85
= 4.096 V
SUPPLY CURRENT
SUPPLY VOLTAGE
T - Free-Air Temperature - °C
°
A
Supply Voltage - V
SLAS514 – DECEMBER 2006
4.95
Figure 3.
Figure 6.
5
vs
vs
20
5.05
35
ADS8472
+VA = 5 V,
+VBD = 5 V
50
5.15
65
5.25
80
9