User guide

MAX1464
Low-Power, Low-Noise Multichannel
Sensor Signal Processor
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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.