Datasheet
MAX1415/MAX1416
16-Bit, Low-Power, 2-Channel,
Sigma-Delta ADCs
6 _______________________________________________________________________________________
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 SYMBOL CONDITIONS MIN TYP MAX UNITS
Positive Full-Scale Error After calibration (Notes 1, 3) µV
Full-Scale Drift (Notes 2, 4) 0.5 µV/°C
Gain Error After calibration (Notes 1, 5) µV
Gain Drift (Notes 2, 6) 0.5
ppm of
FSR/°C
Bipolar Negative Full-Scale Error After calibration ±0.003 %FSR
Gain = 1 to 4 1
Bipolar Negative Full-Scale Drift
(Note 2)
Gain = 8 to 128 0.6
µV/°C
ANALOG INPUTS (AIN1+, AIN1-, AIN2+, AIN2-)
Unipolar input range 0
V
REF
/
GAIN
AIN Differential Input Voltage
Range (Note 7)
Bipolar input range
-V
REF
/
GAIN
V
REF
/
GAIN
V
Unbuffered
GND -
30mV
V
DD
+
30mV
AIN Absolute Input Voltage
Range (Note 8)
Buffered
GND +
50mV
V
DD
-
1.5V
V
AIN DC Leakage Current Unselected input channel 1 nA
Gain = 1 34
Gain = 2 38
Gain = 4 45
AIN Input Capacitance
Gain = 8 to 128 60
pF
AIN Input Sampling Rate f
s
Gain = 1 to 128
f
CLKIN
/
64
MHz
Gain = 1 96
Gain = 2 105
Gain = 4 110
Input Common-Mode Rejection CMR
Gain = 8 to 128 130
dB
Normal-Mode 50Hz Rejection
For filter notches of 25Hz, 50Hz,
±0.02 × f
NOTCH
98 dB
Normal-Mode 60Hz Rejection
For filter notches of 20Hz, 60Hz,
±0.02 × f
NOTCH
98 dB
Common-Mode 50Hz Rejection
For filter notches of 25Hz, 50Hz,
±0.02 × f
NOTCH
150 dB
Common-Mode 60Hz Rejection
For filter notches of 20Hz, 60Hz,
±0.02 × f
NOTCH
150 dB