Rainbow Electronics MAX1273 - Manual (Page 2)

MAX1272/MAX1273
Fault-Protected, 12-Bit ADCs
with Software-Selectable Input Range
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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 GND ..............................................................-0.3V to +6V
AIN to GND (MAX1272) ...................................................... ±12V
AIN to GND (MAX1273) ........................................................ ±6V
DOUT, CS, DIN, SCLK, REF to GND..........-0.3V to (V
DD + 0.3V)
Maximum Current into Any Pin............................................50mA
Continuous Power Dissipation (T
A = +70°C)
8-Pin Plastic DIP (derate 9.1mW/°C above +70°C) ......727mW
8-Pin µMAX (derate 4.5mW/°C above +70°C) ..............362mW
Operating Temperature Ranges
MAX127_ C_ _ .....................................................0°C to +70°C
MAX127_ E_ _...................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................+300°C
Junction Temperature .....................................................+150°C
ELECTRICAL CHARACTERISTICS
(V DD = 4.75V to 5.25V, unipolar/bipolar input range, external reference mode, V REF = 4.096V, C REF = 1.0µF, f SCLK = 1.4MHz,
50% duty cycle, C LOAD = 50pF, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)
PARAMETERS SYMBOL CONDITIONS MIN TYP MAX UNITS
ACCURACY (Note 1)
Resolution 12 Bits
Integral Nonlinearity INL ±0.3 ± 1.0 LSB
Differential Nonlinearity DNL No missing codes over temperature ±0.35 ± 1.00 LSB
Unipolar ± 5
Offset Error
Bipolar ± 10
LSB
Unipolar ± 10
Gain Error (Note 2)
Bipolar ± 10
LSB
Unipolar ± 3 Gain Error Temperature
Coefficient (Note 2)
Bipolar ± 5
ppm/°C
DYNAMIC SPECIFICATIONS (10kHz sine-wave input, ±10V P-P (MAX1272), or ±4.096V P-P (MAX1273), f SAMPLE = 87ksps)
Signal-to-Noise + Distortion Ratio SINAD 69 72 dB
Total Harmonic Distortion THD Up to the 5th harmonic -87 -78 dB
Spurious-Free Dynamic Range SFDR 80 88 dB
Aperture Delay t AD 15 ns
Aperture Jitter t AJ <50 ps
ANALOG INPUT
T/H Acquisition Time t ACQ 2.85 µs