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| MAX1144-MAX1145 Datasheet, PDF (2/18 Pages) Maxim Integrated Products – 14-Bit ADCs, 150ksps, 3.3V Single Supply | |||
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14-Bit ADCs, 150ksps, 3.3V Single Supply
ABSOLUTE MAXIMUM RATINGS
AVDD to AGND, DVDD to DGND ..............................-0.3V to +6V
AGND to DGND.....................................................-0.3V to +0.3V
AIN to AGND ....................................................................±16.5V
CREF, REF to AGND ................................-0.3V to (AVDD + 0.3V)
Digital Inputs to DGND.............................................-0.3V to +6V
Digital Outputs to DGND .........................-0.3V to (DVDD + 0.3V)
Continuous Power Dissipation (TA = +70°C)
20-Pin SSOP (derate 8.00mW/°C above +70°C) .........640mW
Operating Temperature Ranges
MAX114_ _CAP...................................................0°C to +70°C
MAX114_ _EAP ................................................-40°C to +85°C
Storage Temperature Range .............................-60°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under âAbsolute Maximum Ratingsâ 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.
ELECTRICAL CHARACTERISTICS
(AVDD = DVDD = 3.3V ±5%, fSCLK = 3.6MHz, external clock (50% duty cycle), 24 clocks/conversion (150ksps), bipolar input, VREF =
2.048V, CREF = 4.7µF, CCREF = 1µF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
DC ACCURACY (Note 1)
Resolution
14
Bits
Relative Accuracy
INL
Bipolar mode (Note 2)
MAX114_A
MAX114_B
±1
LSB
±2
No Missing Codes
14
Bits
Differential Nonlinearity
Transition Noise
DNL Bipolar mode
MAX114_A
MAX114_B
-1
-1.00
0.47
+1
+1.75
LSB
LSBRMS
Offset Error
Unipolar
Bipolar
±4
mV
±6
Gain Error (Note 3)
Unipolar
Bipolar
±0.2
%FSR
±0.3
Offset Drift (Bipolar and Unipolar)
Excluding reference drift
±1
ppm/°C
Gain Drift (Bipolar and Unipolar)
Excluding reference drift
±4
ppm/°C
DYNAMIC SPECIFICATIONS (5kHz SINE-WAVE INPUT, 150ksps, 3.6MHZ CLOCK, BIPOLAR INPUT MODE. MAX1144, 12VP-P. MAX1145,
4.096VP-P.)
Signal-to-Noise Plus Distortion
(SINAD)
Signal-to-Noise Ratio
(SNR)
Total Harmonic Distortion
(THD)
Spurious-Free-Dynamic Range
(SFDR)
ANALOG INPUT
fIN = 5kHz
fIN = 75kHz
fIN = 5kHz
fIN = 75kHz
fIN = 5kHz
fIN = 75kHz
fIN = 5kHz
fIN = 75kHz
78
82
dB
81
78
82
dB
81
-100 -90
dB
-94
92
105
dB
98
Input Range
MAX1144
MAX1145
Unipolar
Bipolar
Unipolar
Bipolar
0
-6
0
-2.048
+6
+6
V
+2.048
+2.048
2 _______________________________________________________________________________________
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