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| MAX1402 Datasheet, PDF (4/40 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
(Note 13)
±5% for specified performance; functional
with lower VREF
2.50
V
LOGIC INPUTS
Input Current
Input Low Voltage
Input High Voltage
Input Hysteresis
LOGIC OUTPUTS
IIN
VIL
VIH
VHYS
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
µA
0.8
0.4
V
0.8
0.4
2
2
V
3.5
2.4
200
mV
200
Output Low Voltage (Note 14)
Output High Voltage (Note 14)
Floating-State Leakage Current
DOUT
VDD = 5V, ISINK = 800µA
and INT
VDD = 3.3V, ISINK = 100µA
VOL
CLKOUT VDD = 5V, ISINK = 10µA
VDD = 3.3V, ISINK = 10µA
VOH
DOUT
and INT
CLKOUT
VDD = 5V, ISOURCE = 200µA
VDD = 3.3V, ISOURCE = 100µA
VDD = 5V, ISOURCE = 10µA
VDD = 3.3V, ISOURCE = 10µA
4
VDD - 0.3
4
VDD - 0.3
IL
-10
0.4
V
0.4
V
10
µA
Floating-State Output
Capacitance
CO
9
pF
TRANSDUCER BURN-OUT (Note 15)
Current
IBO
Initial Tolerance
Drift
TRANSDUCER EXCITATION CURRENTS
Current
IEXC
Initial Tolerance
Drift
Match
Drift Match
Compliance Voltage Range
OUT1 to OUT2
0.1
±10
±0.05
µA
%
%/°C
200
µA
15
%
100
ppm/°C
±1
%
5
ppm/°C
VAGND
V+ - 1.0 V
4 _______________________________________________________________________________________
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