MAX1415 Datasheet, PDF (3/36 Pages) Maxim Integrated Products – 16-Bit, Low-Power, 2-Channel, Sigma-Delta ADCs

16-Bit, Low-Power, 2-Channel,
Sigma-Delta ADCs
ELECTRICAL CHARACTERISTICS—MAX1415 (continued)
(V_DD = 3V, GND = 0, V_REF+ = 1.225V, V_REF- = GND, external 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
AIN Input Capacitance
SYMBOL
CONDITIONS
Gain = 1
Gain = 2
Gain = 4
Gain = 8 to 128
AIN Input Sampling Rate
f_s
Gain = 1 to 128
Input Common-Mode Rejection
CMR
Normal-Mode 50Hz Rejection
Normal-Mode 60Hz Rejection
Common-Mode 50Hz Rejection
Common-Mode 60Hz Rejection
EXTERNAL REFERENCE (REF+, REF-)
REF Differential Input Range
V_REF
REF Absolute Input Voltage
Range
REF Input Capacitance
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
(Note 9)
Gain = 1 to 128
REF Input Sampling Rate
f_s
DIGITAL INPUTS (DIN, SCLK, CS, RESET)
Input High Voltage
V_IH
Input Low Voltage
Input Hysteresis
V_IL
V_HYST
DIN, CS, RESET
SCLK
Input Current
I_IN
Input Capacitance
CLKIN INPUT
CLKIN Input High Voltage
V_CLKINH
CLKIN Input Low Voltage
V_CLKINL
CLKIN Input Current
I_CLKIN
DIGITAL OUTPUTS (DOUT, DRDY, CLKOUT)
Output-Voltage Low
V_OL
DOUT and DRDY, I_SINK = 100µA
CLKOUT, I_SINK = 10µA
MIN TYP MAX UNITS
34
38
pF
45
60
f_CLKIN /
64
MHz
105
110
dB
120
130
98
dB
98
dB
150
dB
150
dB
1.00
GND
1.75
V
V_DD
V
10
pF
f_CLKIN / _MHz
64
2.0
V
0.4
V
250
mV
500
±1
µA
5
pF
2.5
V
0.4
V
±10
µA
0.4
V
0.4
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