Datasheet

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TYPICAL CHARACTERISTICS
0 6
196
36
1 0
0
500
1000
1500
2000
2500
3000
3500
4000
-4 -3 -2 -1 0 1 2 3 4 5
OutputCode
Frequency
2383
481
+VA =5V,
+VBD=5V,
T =25 C,
f=1.25MSPS,
V =4.096V,
Input=Midscale
A
ref
°
3615
1474
4.09713
4.09714
4.09715
4.09716
4.09717
4.09718
4.09719
4.0972
4.75 4.85 4.95 5.05 5.15 5.25
SupplyVoltage-V
ReferenceVoltage-V
T =25°C
A
4.095
4.0955
4.096
4.0965
4.097
4.0975
4.098
-40 -25 -10 5 20 35 50 65 80
T -Free-AirTemperature-°C
A
ReferenceVoltage-V
+VA =5V,
+VBD=5V
ADS8484
SLAS511 – NOVEMBER 2007
TERMINAL FUNCTIONS (continued)
NAME NO I/O DESCRIPTION
DB9 38 O D9 All ones All ones D9 All ones D9
DB8 39 O D8 All ones All ones D8 All ones D8
DB7 40 O D7 All ones All ones D7 All ones D7
DB6 41 O D6 All ones All ones D6 All ones D6
DB5 42 O D5 All ones All ones D5 All ones D5
DB4 43 O D4 All ones All ones D4 All ones D4
DB3 44 O D3 All ones All ones D3 D1 D3
DB2 45 O D2 All ones All ones D2 D0 (LSB) D2
DB1 46 O D1 All ones All ones D1 All ones D1
DB0 47 O D0 (LSB) All ones All ones D0 (LSB) All ones D0 (LSB)
– IN 19 I Inverting input channel
+IN 18 I Noninverting input channel
NC 15 No connection
REFIN 13 I Reference input
REFOUT 14 O Reference output. Add 1- µ F capacitor between the REFOUT pin and REFM pin when internal reference is used.
REFM 11, 12 I Reference ground
Synchronization pulse for the parallel output. When CS is low, this serves as output enable and puts the previous
RD 5 I
conversion results on the bus.
7, 10, 16,
+VA – Analog power supplies, 5-V DC
21, 22, 25
+VBD 1, 36 – Digital power supply for bus
INTERNAL REFERENCE VOLTAGE INTERNAL REFERENCE VOLTAGE
DC HISTOGRAM vs vs
(8192 Conversion Outputs) FREE-AIR TEMPERATURE SUPPLY VOLTAGE
Figure 1. Figure 2. Figure 3.
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