Datasheet

MAX1112/MAX1113
+5V, Low-Power, Multi-Channel,
Serial 8-Bit ADCs
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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
DD
to AGND............................................................-0.3V to +6V
AGND to DGND.....................................................-0.3V to +0.3V
CH0–CH7, COM, REFIN,
REFOUT to AGND ...................................-0.3V to (V
DD
+ 0.3V)
Digital Inputs to DGND.............................................-0.3V to +6V
Digital Outputs to DGND............................-0.3V to (V
DD
+ 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
QSOP (derate 8.30mW/°C above +70°C).....................667mW
SSOP (derate 8.00mW/°C above +70°C) .....................640mW
Operating Temperature Ranges
MAX1112CAP/MAX1113CEE...............................0°C to +70°C
MAX1112EAP/MAX1113EEE ............................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
ELECTRICAL CHARACTERISTICS
(V
DD
= 4.5V to 5.5V; unipolar input mode; V
COM
= 0V; f
SCLK
= 500kHz, external clock (50% duty cycle); 10 clocks/conversion cycle
(50ksps); 1µF capacitor at REFOUT; T
A
= T
MIN
to T
MAX
; unless otherwise noted.)
-3dB rolloff MHz1.5Small-Signal Bandwidth
kHz800
V
CH_
= 4.096V
P-P
, 25kHz (Note 3)
External reference, 4.096V
No missing codes over temperature
CONDITIONS
Full-Power Bandwidth
±1Internal or external reference LSBGain Error (Note 2)
dB-75Channel-to-Channel Crosstalk
dB68SFDRSpurious-Free Dynamic Range
dB-70THD
Total Harmonic Distortion
(Up to the 5th Harmonic)
LSB±0.1
Channel-to-Channel
Offset Matching
ppm/°C±0.8Gain Temperature Coefficient
LSB±1DNLDifferential Nonlinearity
UNITSMIN TYP MAXSYMBOLPARAMETER
LSB±0.3 ±1TUETotal Unadjusted Error
Bits8Resolution
dB49SINAD
Signal-to-Noise
and Distortion Ratio
LSB±0.1 ±0.5INLRelative Accuracy (Note 1)
LSB±0.3 ±1Offset Error
DC ACCURACY
DYNAMIC SPECIFICATIONS (10.034kHz sine-wave input, 4.096V
P-P
, 50ksps, 500kHz external clock)