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MAX1403_02 Datasheet, PDF (5/36 Pages) Maxim Integrated Products – +3V, 18-Bit, Low-Power, Multichannel, Oversampling (Sigma-Delta) ADC
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+3V, 18-Bit, Low-Power, Multichannel,
Oversampling (Sigma-Delta) ADC
ELECTRICAL CHARACTERISTICS (continued)
(V+ = +2.7V to +3.6V, VDD = +2.7V to +3.6V, VREFIN+ = +1.25V, REFIN- = AGND, fCLKIN = 2.4576MHz, TA = TMIN to TMAX, unless
otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
ANALOG POWER-SUPPLY CURRENT (Measured with digital inputs at either DGND or VDD, external CLKIN, burn-out and
transducer excitation currents disabled, X2CLK = 0, CLK = 0 for 1.024MHz, CLK = 1 for 2.4576MHz.)
V+ Standby Current (Note 19)
V+ Current
PD bit = 1, external clock stopped
Normal mode,
MF1 = 0,
MF0 = 0
1.024MHz
2.4576MHz
Buffers off
Buffers on
Buffers off
Buffers on
2X mode,
MF1 = 0,
MF0 = 1
IV+
4X mode,
MF1 = 1,
MF0 = 0
Buffers off
1.024MHz
Buffers on
Buffers off
2.4576MHz
Buffers on
Buffers off
1.024MHz
Buffers on
Buffers off
2.4576MHz
Buffers on
8X mode,
MF1 = 1,
MF0 = 1
Buffers off
1.024MHz
Buffers on
Buffers off
2.4576MHz
Buffers on
1
10
µA
175
210
370
420
250
300
µA
610
700
245
610
0.42 0.55
1.2
1.5
0.42
1.2
1.8
2.2
mA
4.8
6
1.8
4.8
1.8
2.2
4.8
6
DIGITAL POWER-SUPPLY CURRENT (Measured with digital inputs at either DGND or VDD, external CLKIN, burn-out and
transducer excitation currents disabled, X2CLK = 0, CLK = 0 for 1.024MHz, CLK = 1 for 2.4576MHz.)
VDD Standby Current (Note 19)
Digital Supply Current
PD bit = 1, external clock stopped
Normal mode,
MF1 = 0, MF0 = 0
1.024MHz
2.4576MHz
2X mode,
MF1 = 0, MF0 = 1
IDD
4X mode,
MF1 = 1, MF0 = 0
1.024MHz
2.4576MHz
1.024MHz
2.4576MHz
8X mode,
MF1 = 1, MF0 = 1
1.024MHz
2.4576MHz
1
10
µA
70
200
µA
150
300
0.08
0.17 0.35
0.11
mA
0.22 0.40
0.15
0.32 0.50
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