Rainbow-electronics MAX1143 Manual de usuario descargar pdf (Pagina 2)

MAX1142/MAX1143

14-Bit ADC, 200ksps, +5V Single-Supply

with Reference

2 _______________________________________________________________________________________

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.

to AGND, DV

to DGND .............................-0.3V to +6V

AGND to DGND.....................................................-0.3V to +0.3V

AIN to AGND.....................................................................±16.5V

REFADJ, CREF, REF to AGND.................-0.3V to (AV

+ 0.3V)

Digital Inputs to DGND.............................................-0.3V to +6V

Digital Outputs to DGND .........................-0.3V to (DV

+ 0.3V)

Continuous Power Dissipation (T

= +70°C)

20-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

ELECTRICAL CHARACTERISTICS

(AV

= DV

= +5V ±5%, f

SCLK

= 4.8MHz, external clock (50% duty cycle), 24 clocks/conversion (200ksps), bipolar input, external

REF

= +4.096V, V

REFADJ

= AV

, C

REF

= 2.2µF, C

CREF

= 1µF, T

= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at

= +25°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

DC ACCURACY (Note 1)

Resolution 14 Bits

Unipolar Mode MAX114_A ±1

Relative Accuracy (Note 2) INL

MAX114_B ±2

LSB

Differential Nonlinearity DNL Unipolar Mode ±1 LSB

Transition Noise 0.34 LSB RMS

Unipolar ±4

Offset Error

Bipolar ±6

Unipolar ±0.2

Gain Error (Note 3)

Bipolar ±0.3

%FSR

Offset D r i ft ( Bi p ol ar and U ni p ol ar ) Excluding reference drift ±1 ppm/

G ai n D r i ft ( Bi p ol ar and U ni p ol ar ) Excluding reference drift ±1 ppm/

DYNAMIC SPECIFICATIONS (5kHz sine-wave input, 200ksps, 4.8MHz clock, bipolar input mode).

(MAX1142, 24Vp-p. MAX1143, 8.192Vp-p)

= 5kHz 81

SINAD

= 100kHz 82

= 5kHz 82

SNR

= 100kHz 82

= 5kHz -88

THD

= 100kHz 91

= 5kHz 90

SFDR

= 100kHz 95

ANALOG INPUT

Unipolar 0 12

MAX1142

Bipolar -12 12

Unipolar 0 4.096

Input Range

MAX1143

Bipolar - 4.096 4.096

1 2 3 4 5 6 7 ... 19 20

MAX1142/MAX1143 1
SSOP.EPS 20

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Rainbow-electronics MAX1143 Manual de usuario Pagina 2

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