Rainbow Electronics MAX1464 User Manual
Page 33
MAX1464
Low-Power, Low-Noise Multichannel
Sensor Signal Processor
______________________________________________________________________________________
33
RESn[2:0]
RESOLUTION (BITS)
NO. OF f
ADC
CLOCKS PER
CONVERSION
000
9
256
001
10
320
010
12
512
011
13
640
100
14
800
101
15
1280
110
16
2048
Table 16. ADC Resolution (RESn[2:0],
Where n = 1, 2, or T)
COARSE OFFSET ADDED AS % OF ADC REFERENCE*
ADC REFERENCE EQUAL TO V
DD
or 2 x V
REF
ADC REFERENCE EQUAL TO 4 x V
BG
PGAn = 1 TO 59
PGAn = 71 TO 114
PGAn = 137 TO 220
PGAn = 1 TO 59
PGAn = 71 TO 114 PGAn = 137 TO 220
COn
[3:0]
00000 TO 01000
01010 TO 10000
10100 TO 11110
00000 TO 01000
01010 TO 10000
10100 TO 11110
0111
+147
+291
+578
+137
+270
+539
0110
+124
+245
+487
+116
+229
+456
0101
+104
+206
+409
+97
+192
+383
0100
+82
+162
+322
+76
+151
+300
0011
+64
+126
+251
+59
+116
+231
0010
+41
+81
+160
+38
+75
+148
0001
+21
+41
+83
+19
+38
+76
0000
-1
-2.4
-4
-1.7
-3.3
-7
1000
-10
-19
-38
-4.6
-9
-19
1001
-30
-61
-120
-26
-51
-101
1010
-50
-100
-199
-44
-87
-174
1011
-73
-145
-287
-65
-129
-257
1100
-91
-181
-360
-82
-163
-326
1101
-113
-225
-447
-104
-205
-409
1110
-133
-264
-526
-122
-242
-482
1111
-156
-309
-614
-143
-283
-565
Table 18. Coarse-Offset DAC (3 Bits Plus Sign, Where n = 1, 2, or T)
CONVERSION TIME (ms)
RESOLUTION
(BITS)
CLKn[2:0] =
000
CLKn[2:0] =
100
CLKn[2:0] =
111
9
0.256
4.096
32.768
10
0.320
5.120
40.960
12
0.512
8.192
65.536
13
0.640
10.240
81.920
14
0.800
12.800
102.400
15
1.280
20.480
163.840
16
2.048
32.768
262.140
Table 17. ADC Conversion Time
(RESn[2:0] and CLKn[2:0], Where
n = 1, 2, or T)
*Measured at the ADC input.