MAX1272EPA datasheet(2/20 Pages) MAXIM

2 / 20 page

Fault-Protected, 12-Bit ADCs

with Software-Selectable Input Range

_______________________________________________________________________________________

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.

VDD 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 (VDD + 0.3V)

Maximum Current into Any Pin............................................50mA

Continuous Power Dissipation (TA = +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

(VDD = 4.75V to 5.25V, unipolar/bipolar input range, external reference mode, VREF = 4.096V, CREF = 1.0µF, fSCLK = 1.4MHz,

50% duty cycle, CLOAD = 50pF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)

PARAMETERS

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

ACCURACY (Note 1)

Resolution

Bits

Integral Nonlinearity

INL

±0.3

1.0

LSB

Differential Nonlinearity

DNL

No missing codes over temperature

±0.35

1.00

LSB

Unipolar

Offset Error

Bipolar

LSB

Unipolar

Gain Error (Note 2)

Bipolar

LSB

Unipolar

Gain Error Temperature

Coefficient (Note 2)

Bipolar

ppm/°C

DYNAMIC SPECIFICATIONS (10kHz sine-wave input, ±10VP-P (MAX1272), or ±4.096VP-P (MAX1273), fSAMPLE = 87ksps)

Signal-to-Noise + Distortion Ratio

SINAD

Total Harmonic Distortion

THD

Up to the 5th harmonic

-87

-78

Spurious-Free Dynamic Range

SFDR

Aperture Delay

tAD

Aperture Jitter

tAJ

<50

ANALOG INPUT

T/H Acquisition Time

tACQ

2.85

µs

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