MAX125_08 datasheet(2/15 Pages) MAXIM

2 / 15 page

2x4-Channel, Simultaneous-Sampling

14-Bit DAS

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(AVDD = +5V ±5%, AVSS = -5V ±5%, DVDD = +5V ±5%, VREFIN = 2.5V, AGND = DGND = 0V, 4.7µF capacitor from REFOUT to

AGND, 0.1µF capacitor from REFIN to AGND, fCLK = 16MHz, external clock, 50% duty cycle, TA = TMIN to TMAX, unless otherwise

noted.)

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 ...........................................................-0.3V to 6V

AVSS to AGND ............................................................0.3V to -6V

DVDD to DGND ...........................................................-0.3V to 6V

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

CH_ _ to AGND....................................................................±17V

REFIN, REFOUT to AGND ..........................................-0.3V to 6V

Digital Inputs/Outputs to DGND ..............-0.3V to (DVDD + 0.3V)

Continuous Power Dissipation (TA = +70°C)

SSOP (derate 11.8mW/°C above +70°C) ....................941mW

Operating Temperature Ranges

MAX125CCAX/MAX126CCAX ............................0°C to +70°C

MAX125CEAX/MAX126CEAX ..........................-40°C to +85°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10sec)................................300°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

DC ACCURACY (Note 1)

Resolution

All channels

Bits

Integral Nonlinearity

INL

(Note 2)

±2

±4

LSB

No Missing Codes

Bits

TA = +25°C

±5

±15

Bipolar Zero Error

TA = TMIN to TMAX

±25

Bipolar Zero-Error Match

Between all channels

1.2

Zero-Code Tempco

±5

ppm/°C

TA = +25°C

±5

±10

Gain Error

TA = TMIN to TMAX

±15

Gain-Error Match

Between all channels

1.2

Gain-Error Tempco

±5

ppm/°C

DYNAMIC PERFORMANCE (fCLK = 16MHz, fIN = 10.06kHz (Notes 1, 3)

MAX125

Signal-to-Noise Plus Distortion

SINAD

Single-channel mode,

channel 1A, 250ksps (Note

MAX126

Total Harmonic Distortion

THD

Single-channel mode, channel 1A,

250ksps (Notes 4, 5)

-89

-80

Spurious-Free Dynamic Range

SFDR

Single-channel mode, channel 1A,

250ksps (Note 4)

Channel-to-Channel Isolation

Single-channel mode, channel 1A,

250ksps (Note 6)

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