
Power-Supply Rejection V+
(Note 16)
dB
PSR
MAX1400
+5V, 18-Bit, Low-Power, Multichannel,
Oversampling (Sigma-Delta) ADC
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V+ = +5V ±5%, VDD = +2.7V to +5.25V, VREFIN+ = +2.50V, REFIN- = AGND, fCLKIN = 2.4576MHz, TA = TMIN to TMAX, unless other-
wise noted. Typical values are at TA = +25°C.)
CONDITIONS
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
0.8
All inputs except
CLKIN
0.4
A
-10
+10
IIN
Input Current
200
CLKIN only
All inputs except
CLKIN
mV
200
VHYS
Input Hysteresis
DOUT
and INT
0.4
pF
9
CO
Floating State Output
Capacitance
A
-10
+10
IL
Floating State Leakage Current
V
0.4
VIL
Input Low Voltage
±5% for specified performance; functional with
lower VREF (Note 13)
V
2.50
REFIN+ - REFIN- Voltage
VDD = 5V
VDD = 3.3V
VDD = 5V
VDD = 3.3V
VDD = 5V
VDD = 3.3V
VDD = 5V
VDD = 3.3V
2
3.5
All inputs except
CLKIN
2
CLKIN only
V
2.4
VIH
Input High Voltage
VDD = 5V
VDD = 3.3V
A
0.1
IBO
Current
%
±10
Initial Tolerance
%/°C
±0.05
Drift
Hz
(Table 15)
fS
AIN and REFIN Input Sampling
Frequency
CLKOUT
V
0.4
VOL
Output Low Voltage (Note 14)
VDD = 5V, ISINK = 800A
VDD = 3.3V, ISINK = 100A
VDD = 5V, ISINK = 10A
VDD = 3.3V, ISINK = 10A
CLKOUT
V
VDD - 0.3
VOH
Output High Voltage (Note 14)
4
VDD = 5V, ISOURCE = 200A
VDD = 3.3V, ISOURCE = 100A
VDD = 5V, ISOURCE = 10A
DOUT
and INT
VDD - 0.3
4
VDD = 3.3V, ISOURCE = 10A
For specified performance
V
4.75
5.25
V+
V+ Voltage
V
2.7
5.25
VDD
VDD Voltage
(Note 16)
dB
(Note 17)
PSR
Power-Supply Rejection V+
TRANSDUCER BURN-OUT (Note 15)
LOGIC OUTPUTS
LOGIC INPUTS
POWER REQUIREMENTS