MAX1415 Datasheet, PDF (6/36 Pages) Maxim Integrated Products – 16-Bit, Low-Power, 2-Channel, Sigma-Delta ADCs

16-Bit, Low-Power, 2-Channel,
Sigma-Delta ADCs
ELECTRICAL CHARACTERISTICS—MAX1416 (continued)
(V_DD = 5V, GND = 0, V_REF+ = 2.5V, V_REF- = GND, f_CLKIN = 2.4576MHz, CLKDIV bit = 0, C_REF+ to GND = 0.1µF, C_REF- to GND =
0.1µF, T_A = T_MIN to T_MAX, unless otherwise noted.)
PARAMETER
Positive Full-Scale Error
Full-Scale Drift
Gain Error
SYMBOL
CONDITIONS
After calibration
(Notes 2, 4)
After calibration
Gain Drift
(Notes 2, 6)
Bipolar Negative Full-Scale Error
After calibration
Bipolar Negative Full-Scale Drift
(Note 2)
Gain = 1 to 4
Gain = 8 to 128
ANALOG INPUTS (AIN1+, AIN1-, AIN2+, AIN2-)
AIN Differential Input Voltage
Range (Note 7)
Unipolar input range
Bipolar input range
AIN Absolute Input Voltage
Range (Note 8)
AIN DC Leakage Current
AIN Input Capacitance
AIN Input Sampling Rate
Input Common-Mode Rejection
Normal-Mode 50Hz Rejection
Normal-Mode 60Hz Rejection
Common-Mode 50Hz Rejection
Common-Mode 60Hz Rejection
Unbuffered
f_s
CMR
Buffered
Unselected input channel
Gain = 1
Gain = 2
Gain = 4
Gain = 8 to 128
Gain = 1 to 128
Gain = 1
Gain = 2
Gain = 4
Gain = 8 to 128
For filter notches of 25Hz, 50Hz,
±0.02 × f_NOTCH
For filter notches of 20Hz, 60Hz,
±0.02 × f_NOTCH
For filter notches of 25Hz, 50Hz,
±0.02 × f_NOTCH
For filter notches of 20Hz, 60Hz,
±0.02 × f_NOTCH
MIN TYP MAX
(Notes 1, 3)
0.5
(Notes 1, 5)
0.5
±0.003
1
0.6
UNITS
µV
µV/°C
µV
ppm of
FSR/°C
%FSR
µV/°C
0
-V_REF /
GAIN
GND -
30mV
GND +
50mV
V_REF /
GAIN
V
V_REF /
GAIN
V_DD +
30mV
V
V_DD -
1.5V
1
nA
34
38
pF
45
60
f_CLKIN /
64
MHz
96
105
dB
110
130
98
dB
98
dB
150
dB
150
dB
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