FS1 = 0; MF1, MF0 = 1,
MAX1403
+3V, 18-Bit, Low-Power, Multichannel,
Oversampling (Sigma-Delta) ADC
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V+ = +2.7V to +3.6V, V
DD
= +2.7V to +3.6V, V
REFIN+
= +1.25V, REFIN- = AGND, f
CLKIN
= 2.4576MHz, T
A
= T
MIN
to T
MAX
, unless
otherwise noted. Typical values are at T
A
= +25°C.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
V+ to AGND, DGND.................................................-0.3V to +6V
V
DD
to AGND, DGND...............................................-0.3V to +6V
AGND to DGND.....................................................-0.3V to +0.3V
Analog Inputs to AGND................................-0.3V to (V+ + 0.3V)
Analog Outputs to AGND.............................-0.3V to (V+ + 0.3V)
Reference Inputs to AGND...........................-0.3V to (V+ + 0.3V)
CLKIN and CLKOUT to DGND...................-0.3V to (V
DD
+ 0.3V)
All Other Digital Inputs to DGND..............................-0.3V to +6V
All Digital Outputs to DGND.......................-0.3V to (V
DD
+ 0.3V)
Maximum Current Input into Any Pin ..................................50mA
Continuous Power Dissipation (T
A
= +70°C)
28-Pin SSOP (derate 9.52mW/°C above +70°C) ........524mW
Operating Temperature Ranges
MAX1403CAI .....................................................0°C to +70°C
MAX1403EAI...................................................-40°C to +85°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
µV/°C
For gains of 1, 2, 4
No missing codes guaranteed by design;
for filter settings with FS1 = 0
For gains of 1, 2, 4, 8, 16, 32, 64
For gain of 128
For gains of 1, 2, 4, 8, 16, 32, 64
For gain of 128
For gains of 1, 2, 4, 8, 16, 32, 64
For gain of 128
For gains of 1, 2, 4
For gains of 1, 2, 4, 8, 16, 32, 64
For gains of 8, 16, 32, 64, 128
For gains of 1, 2, 4
Depends on filter setting and selected gain
Relative to nominal of 1% FSR
For gains of 8, 16, 32, 64, 128
CONDITIONS
0.8
%FSR
-2.5 2.5
Bipolar Negative Full-Scale Error
ppm/°C
5
Gain-Error Drift (Note 6)
1
%FSR
-3 3
Gain Error (Note 5)
-2 2
%FSR
-3.5 3.5
-2.5 2.5
Positive Full-Scale Error
(Note 3)
0.3
Bipolar Zero Drift
Bits16Noise-Free Resolution
0.8
%FSR-2.0 2.0Bipolar Zero Error
µV/°C
0.3
Unipolar Offset Drift
0.5
(Tables 16a, 16b)Output Noise
%FSR
-0.0015 0.0015
INL
Integral Nonlinearity
(Note 1)
0.98Nominal Gain (Note 2)
%FSR-1 2Unipolar Offset Error
UNITSMIN TYP MAXSYMBOLPARAMETER
For gains of 8, 16, 32, 64, 128
µV/°C
0.3
Bipolar Negative Full-Scale Drift
For gains of 8, 16, 32, 64, 128
For gains of 1, 2, 4
µV/°C
0.3
0.8
Full-Scale Drift (Note 4)
For gain of 128 -3.5 3.5
±0.001
STATIC PERFORMANCE
FS1 = 0; MF1, MF0 = 1, 2, 3
Bipolar mode; FS1 = 0; MF1, MF0 = 0
