MAX1239EEE datasheet(2/22 Pages) MAXIM

2 / 22 page

2.7V to 3.6V and 4.5V to 5.5V, Low-Power,

4-/12-Channel, 2-Wire Serial, 12-Bit ADCs

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VDD = 2.7V to 3.6V (MAX1237/MAX1239), VDD = 4.5V to 5.5V (MAX1236/MAX1238), VREF = 2.048V (MAX1237/MAX1239), VREF =

4.096V (MAX1236/MAX1238), CREF = 0.1µF, fSCL = 1.7MHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at

TA = +25°C, see Tables 1–5 for programming notation.)

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

AIN0–AIN11,

REF to GND ............-0.3V to the lower of (VDD + 0.3V) and 6V

SDA, SCL to GND.....................................................-0.3V to +6V

Maximum Current Into Any Pin .........................................±50mA

Continuous Power Dissipation (TA = +70°C)

8-Pin µMAX (derate 4.5mW/°C above +70°C) .............362mW

16-Pin QSOP (derate 8.3mW/°C above +70°C)........666.7mW

Operating Temperature Range ...........................-40°C to +85°C

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-60°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

DC ACCURACY (Note 1)

Resolution

Bits

Relative Accuracy

INL

(Note 2)

±1

LSB

Differential Nonlinearity

DNL

No missing codes over temperature

±1

LSB

Offset Error

±4

LSB

Offset-Error Temperature

Coefficient

Relative to FSR

0.3

ppm/

°C

Gain Error

(Note 3)

±4

LSB

Gain-Temperature Coefficient

Relative to FSR

0.3

ppm/

°C

Channel-to-Channel Offset

Matching

±0.1

LSB

Channel-to-Channel Gain

Matching

±0.1

LSB

DYNAMIC PERFORMANCE (fIN(SINE-WAVE) = 10kHz, VIN(P-P) = VREF, fSAMPLE = 94.4ksps)

Signal-to-Noise Plus Distortion

SINAD

Total Harmonic Distortion

THD

Up to the 5th harmonic

-78

Spurious-Free Dynamic Range

SFDR

Full-Power Bandwidth

SINAD > 68dB

MHz

Full-Linear Bandwidth

-3dB point

MHz

CONVERSION RATE

Internal clock

7.5

Conversion Time (Note 4)

tCONV

External clock

10.6

µs

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