Rainbow Electronics MAX1145 - Manual (Page 2)

MAX1144/MAX1145
14-Bit ADCs, 150ksps, 3.3V Single Supply
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(AV DD = DV DD = 3.3V ±5%, f SCLK = 3.6MHz, external clock (50% duty cycle), 24 clocks/conversion (150ksps), bipolar input, V REF =
2.048V, C REF = 4.7µF, C CREF = 1µF, 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.
AV DD to AGND, DV DD 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 (AV
DD
+ 0.3V)
Digital Inputs to DGND.............................................-0.3V to +6V
Digital Outputs to DGND .........................-0.3V to (DV
DD + 0.3V)
Continuous Power Dissipation (T A = +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
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
DC ACCURACY (Note 1)
Resolution 14 Bits
MAX114_A ±1
Relative Accuracy INL Bipolar mode (Note 2)
MAX114_B ±2
LSB
No Missing Codes 14 Bits
MAX114_A -1 +1
Differential Nonlinearity DNL Bipolar mode
MAX114_B -1.00 +1.75
LSB
Transition Noise 0.47 LSB
RMS
Unipolar ±4
Offset Error
Bipolar ±6
mV
Unipolar ±0.2
Gain Error (Note 3)
Bipolar ±0.3
%FSR
Offset Drift (Bipolar and Unipolar) Excluding reference drift ±1 ppm/°C
Gain Drift (Bipolar and Unipolar) Excluding reference drift ±4 ppm/°C
D YNA M IC SPEC IF IC A T IO N S ( 5 k Hz SINE- WAVE IN PU T, 1 50 k s ps , 3 .6M H Z C L O CK , BIPO LA R IN PU T M O DE. M A X1 14 4 , 1 2 V P-P . M A X1 14 5 ,
4 .09 6 V P-P .)
f IN = 5kHz 78 82 Signal-to-Noise Plus Distortion
(SINAD)
f IN = 75kHz 81
dB
f IN = 5kHz 78 82 Signal-to-Noise Ratio
(SNR)
f IN = 75kHz 81
dB
f IN = 5kHz -100 -90 Total Harmonic Distortion
(THD)
f IN = 75kHz -94
dB
f IN = 5kHz 92 105 Spurious-Free-Dynamic Range
(SFDR)
f IN = 75kHz 98
dB
ANALOG INPUT
Unipolar 0 +6
MAX1144
Bipolar -6 +6
Unipolar 0 +2.048
Input Range
MAX1145
Bipolar -2.048 +2.048
V