MAX1144BCAP datasheet(2/18 Pages) MAXIM

2 / 18 page

14-Bit ADCs, 150ksps, 3.3V Single Supply

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ABSOLUTE MAXIMUM RATINGS

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.)

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.

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

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

DC ACCURACY (Note 1)

Resolution

Bits

MAX114_A

±1

Relative Accuracy

INL

Bipolar mode (Note 2)

MAX114_B

±2

LSB

No Missing Codes

Bits

MAX114_A

-1

Differential Nonlinearity

DNL

Bipolar mode

MAX114_B

-1.00

+1.75

LSB

Transition Noise

0.47

LSBRMS

Unipolar

±4

Offset Error

Bipolar

±6

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

DYNAMIC SPECIFICATIONS (5kHz SINE-WAVE INPUT, 150ksps, 3.6MHZ CLOCK, BIPOLAR INPUT MODE. MAX1144, 12VP-P. MAX1145,

4.096VP-P.)

fIN = 5kHz

Signal-to-Noise Plus Distortion

(SINAD)

fIN = 75kHz

fIN = 5kHz

Signal-to-Noise Ratio

(SNR)

fIN = 75kHz

fIN = 5kHz

-100

-90

Total Harmonic Distortion

(THD)

fIN = 75kHz

-94

fIN = 5kHz

105

Spurious-Free-Dynamic Range

(SFDR)

fIN = 75kHz

ANALOG INPUT

Unipolar

MAX1144

Bipolar

-6

Unipolar

+2.048

Input Range

MAX1145

Bipolar

-2.048

+2.048

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