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| MAX1400_02 Datasheet, PDF (4/34 Pages) Maxim Integrated Products – +5V, 18-Bit, Low-Power, Multichannel, Oversampling (Sigma-Delta) ADC | |||
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+5V, 18-Bit, Low-Power, Multichannel,
Oversampling (Sigma-Delta) ADC
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.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
AIN and REFIN Input Sampling
Frequency
fS
(Table 15)
Hz
REFIN+ - REFIN- Voltage
LOGIC INPUTS
Input Current
IIN
Input Low Voltage
VIL
Input High Voltage
VIH
Input Hysteresis
LOGIC OUTPUTS
VHYS
Output Low Voltage (Note 14)
VOL
Output High Voltage (Note 14)
VOH
Floating State Leakage Current
IL
Floating State Output
Capacitance
CO
TRANSDUCER BURN-OUT (Note 15)
Current
IBO
Initial Tolerance
Drift
POWER REQUIREMENTS
V+ Voltage
V+
VDD Voltage
Power-Supply Rejection V+
Power-Supply Rejection V+
VDD
PSR
±5% for specified performance; functional with
lower VREF (Note 13)
2.50
All inputs except
CLKIN
CLKIN only
All inputs except
CLKIN
CLKIN only
All inputs except
CLKIN
VDD = 5V
VDD = 3.3V
VDD = 5V
VDD = 3.3V
VDD = 5V
VDD = 3.3V
VDD = 5V
VDD = 3.3V
VDD = 5V
VDD = 3.3V
-10
+10
0.8
0.4
0.8
0.4
2
2
3.5
2.4
200
200
DOUT
and INT
VDD = 5V, ISINK = 800µA
VDD = 3.3V, ISINK = 100µA
0.4
CLKOUT VDD = 5V, ISINK = 10µA
0.4
VDD = 3.3V, ISINK = 10µA
DOUT
and INT
VDD = 5V, ISOURCE = 200µA
VDD = 3.3V, ISOURCE = 100µA
4
VDD - 0.3
CLKOUT VDD = 5V, ISOURCE = 10µA
VDD = 3.3V, ISOURCE = 10µA
4
VDD - 0.3
-10
+10
9
For specified performance
PSR
(Note 16)
0.1
±10
±0.05
4.75
5.25
2.7
5.25
(Note 16)
(Note 17)
V
µA
V
V
mV
V
V
µA
pF
µA
%
%/°C
V
V
dB
dB
4 _______________________________________________________________________________________
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