MAX1321 datasheet(2/27 Pages) MAXIM

2 / 27 page

8-/4-/2-Channel, 14-Bit, Simultaneous-Sampling ADCs

with ±10V, ±5V, and 0 to +5V Analog Input Ranges

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VAVDD = +5V, VDVDD = +3V, VAGND = VDGND = 0, VREF = VREFMS = +2.5V (external reference), CREF = CREFMS = 0.1µF, CREF+ =

CREF- = 0.1µF, CREF+-to-REF- = 2.2µF || 0.1µF, CCOM = 2.2µF || 0.1µF, CMSV = 2.2µF || 0.1µF (unipolar devices, MAX1316/

MAX1317/MAX1318), MSV = AGND (bipolar devices, MAX1320/MAX1321/MAX1322/MAX1324/MAX1325/MAX1326), fCLK = 10MHz,

50% duty cycle, INTCLK/EXTCLK = AGND (external clock), SHDN = DGND, TA = TMIN to TMAX, unless otherwise noted. Typical val-

ues 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 .........................................................-0.3V to +6V

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

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

CH0–CH7, I.C. to AGND (MAX1316/MAX1317/MAX1318)...±6.0V

CH0–CH7, I.C. to AGND (MAX1320/MAX1321/MAX1322).±16.5V

CH0–CH7, I.C. to AGND (MAX1324/MAX1325/MAX1326).±16.5V

INTCLK/EXTCLK to AGND .......................-0.3V to (AVDD + 0.3V)

EOC, EOLC, WR, RD, CS to DGND.........-0.3V to (DVDD + 0.3V)

CONVST, CLK, SHDN,

ALLON to DGND..................................-0.3V to (DVDD + 0.3V)

MSV, REFMS, REF to AGND.....................-0.3V to (AVDD + 0.3V)

REF+, COM, REF- to AGND.....................-0.3V to (AVDD + 0.3V)

D0–D13 to DGND ....................................-0.3V to (DVDD + 0.3V)

Maximum Current into Any Pin Except AVDD, DVDD,

AGND, DGND...............................................................±50mA

Continuous Power Dissipation

LQFP (derate 22.7mW/°C above +70°C) ...................1818mW

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

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

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

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

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

STATIC PERFORMANCE (Note 1)

Resolution

Bits

Integral Nonlinearity

INL

(Note 2)

±0.8

±2.0

LSB

Differential Nonlinearity

DNL

No missing codes (Note 2)

±0.5

±1

LSB

Unipolar devices

±40

Offset Error

Bipolar devices

±40

LSB

Unipolar devices

-4

Offset Drift

Bipolar devices

-4

ppm/

°C

Unipolar devices between all channels

Channel Offset Matching

Bipolar devices between all channels

LSB

Gain Error

(Note 3)

±8

±40

LSB

Channel Gain-Error Matching

Between all channels

LSB

Gain Temperature Coefficient

ppm/

°C

DYNAMIC PERFORMANCE (at fIN = 100kHz, -0.4dB FS)

Unipolar

74.5

Signal-to-Noise Ratio

SNR

Bipolar

76.5

Unipolar

74.5

Signal-to-Noise and Distortion

Ratio

SINAD

Bipolar

76.5

Spurious-Free Dynamic Range

SFDR

dBc

Total Harmonic Distortion

THD

-90

-83

dBc

Channel-to-Channel Isolation

ANALOG INPUTS (CH0–CH7)

MAX1316/MAX1317/MAX1318

MAX1320/MAX1321/MAX1322

-5

Input Voltage Range

MAX1324/MAX1325/MAX1326

-10

+10

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