Functional Description (Continued)
TABLE 1. DECODING THE DIGITAL OUTPUT LEDs
OUTPUT VOLTAGE
FRACTIONAL BINARY VALUE FOR CENTER VALUES
HEX BINARY WITH
V
REF
/2
=
2.560 V
DC
MS GROUP LS GROUP VMS
GROUP
(Note 15)
VLS
GROUP
(Note 15)
F 1111 15/16 15/256 4.800 0.300
E 1110 7/8 7/128 4.480 0.280
D 1101 13/16 13/256 4.160 0.260
C 1100 3/4 3/64 3.840 0.240
B 1011 11/16 11/256 3.520 0.220
A 1010 5/8 5/128 3.200 0.200
9 1001 9/16 9/256 2.880 0.180
8 10001/2 1/32 2.560 0.160
7 0111 7/16 7/256 2.240 0.140
6 0110 3/8 3/128 1.920 0.120
5 0101 5/16 2/256 1.600 0.100
4 0100 1/4 1/64 1.280 0.080
3 0011 3/16 3/256 0.960 0.060
2 0010 1/8 1/128 0.640 0.040
1 0001 1/16 1/256 0.320 0.020
0 0000 00
Note 15: Display Output
=
VMS Group + VLS Group
DS005671-89
FIGURE 10. A/D Tester with Analog Error Output
DS005671-90
FIGURE 11. Basic “Digital” A/D Tester
ADC0801/ADC0802/ADC0803/ADC0804/ADC0805
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