MAX1463 Datasheet, PDF (3/49 Pages) Maxim Integrated Products – Low-Power Two-Channel Sensor Signal Processor

Low-Power Two-Channel Sensor
Signal Processor
ELECTRICAL CHARACTERISTICS (continued)
(V_DD = 5.0V, V_SS = 0V, f_CLK = 4.0MHz, T_A = T_MIN to T_MAX. Typical values are at T_A = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
Single-Sided Input Impedance
(INP1 to V_SS, INM1 to V_SS,
INP2 to V_SS, INP2 to V_SS)
Common-Mode Rejection Ratio
Differential Signal-Gain Range
Differential Signal Gain
Gain-Error Temperature
Coefficient
COARSE-OFFSET DAC
Resolution
SYMBOL
R_SIN
CMRR
A_VDIFF
CONDITIONS
PGA[4:0] = 00000, CLK[2:0] = 000
PGA[4:0] = 01010_, CLK[2:0] = 000
PGA[4:0] = 11110, CLK[2:0] = 000
PGA[4:0] = 00000, CLK[2:0] = 011
PGA[4:0] = 01010, CLK[2:0] = 011
PGA[4:0] = 11110, CLK[2:0] = 011
PGA[4:0] = 00000, CLK[2:0] = 110
PGA[4:0] = 01010, CLK[2:0] = 110
PGA[4:0] = 01000, CLK[2:0] = 110
Common-mode voltage V_CM = V_SS to V_DD
Selectable in 17 steps (Note 5)
PGA[4:0] = 00000
PGA[4:0] = 00001
PGA[4:0] = 01010
PGA[4:0] = 10100
PGA[4:0] = 11110
GETC_ADC PGA[4:0] = 00000
3-bit plus sign
PGA[4:0] =
00000 to 01000
MIN TYP MAX
2
50
31.2
16
400
250
128
3.2
2
90
0.94–240
0.90 0.94 1.0
7.0
7.4
8.0
68
73
78
125
133
143
220
240
260
-8
4
130
135
140
COREF = V_DD,
CO[3:0] = 0111
PGA[4:0] =
01010 to 10000
256
266
276
PGA[4:0] =
10100 to 11110
450
481
510
PGA[4:0] =
00000 to 01000
55
60
65
Effective Offset Adjustment at the
ADC Input
OA_ADC
COREF = V_DD,
CO[3:0] = 0011
PGA[4:0] =
01010 to 10000
107
117
127
PGA[4:0] =
10100 to 11110
180
210
240
PGA[4:0] =
00000 to 01000
0
5
10
COREF = V_DD,
CO[3:0] = 0000
PGA[4:0] =
01010 to 10000
3
9
15
PGA[4:0] =
10100 to 11110
-4
+8
+20
UNITS
MΩ
kΩ
MΩ
kΩ
MΩ
dB
V/V
ppm/°C
Bits
% of
ADC
Ref
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