MAX1227/MAX1229/MAX1231
12-Bit 300ksps ADCs with FIFO,
Temp Sensor, Internal Reference
2
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ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VDD = +2.7V to +3.6V, fSAMPLE = 300kHz, fSCLK = 4.8MHz (50% duty cycle), VREF = 2.5V, TA = TMIN to TMAX, unless otherwise
noted. Typical values are at TA = +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.
VDD to GND ..............................................................-0.3V to +6V
CS, SCLK, DIN, EOC, DOUT to GND.........-0.3V to (VDD + 0.3V)
AIN0–AIN13, REF-/AIN_, CNVST/AIN_,
REF+ to GND.........................................-0.3V to (VDD + 0.3V)
Maximum Current into Any Pin............................................50mA
Continuous Power Dissipation (TA = +70°C)
16-Pin QSOP (derate 8.3mW/°C above +70°C)...........667mW
20-Pin QSOP (derate 9.1mW/°C above +70°C)...........727mW
24-Pin QSOP (derate 9.5mW/°C above +70°C)...........762mW
28-Pin TQFN 5mm x 5mm
(derate 20.8mW/°C above +70°C) ........................1667mW
Operating Temperature Ranges
MAX12__C__.......................................................0°C to +70°C
MAX12__E__ ....................................................-40°C to +85°C
Storage Temperature Range .............................-60°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DC ACCURACY (NOTE 1)
Resolution
RES
12
Bits
Integral Nonlinearity
INL
±1.0
LSB
Differential Nonlinearity
DNL
No missing codes over temperature
±1.0
LSB
Offset Error
±0.5
±4.0
LSB
Gain Error
(Note 2)
±0.5
±4.0
LSB
Offset Error Temperature
Coefficient
±2
ppm/°C
FSR
Gain Temperature Coefficient
±0.8
ppm/°C
Channel-to-Channel Offset
Matching
±0.1
LSB
DYNAMIC SPECIFICATIONS (30kHz sine wave input, 2.5VP-P, 300ksps, fSCLK = 4.8MHz)
Signal-to-Noise Plus Distortion
SINAD
71
dB
Total Harmonic Distortion
THD
Up to the 5th harmonic
-80
dBc
Spurious-Free Dynamic Range
SFDR
81
dBc
Intermodulation Distortion
IMD
fIN1 = 29.9kHz, fIN2 = 30.2kHz
76
dBc
Full-Power Bandwidth
-3dB point
1
MHz
Full-Linear Bandwidth
S/(N + D) > 68dB
100
kHz