MAX186ACAP datasheet(2/24 Pages) MAXIM

2 / 24 page

Relative Accuracy (Note 2)

Low-Power, 8-Channel,

Serial 12-Bit ADCs

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VDD = 5V ±5%; VSS = 0V or -5V; fCLK = 2.0MHz, external clock (50% duty cycle); 15 clocks/conversion cycle (133ksps); MAX186—

4.7µF capacitor at VREF pin; MAX188—external reference, VREF = 4.096V applied to VREF pin; 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.

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

±1.0

LSB

±0.75

±1.0

±0.5

Differential Nonlinearity

DNL

±1

LSB

±2.0

±3.0

Resolution

Bits

±0.5

Offset Error

±3.0

LSB

±3.0

±1.5

±2.0

Gain Error (Note 3)

±3.0

LSB

Gain Temperature Coefficient

±0.8

ppm/°C

±0.1

LSB

SINAD

THD

-80

Spurious-Free Dynamic Range

SFDR

Channel-to-Channel Crosstalk

-85

CONDITIONS

MAX186D/MAX188D

MAX186 (all grades)

MAX188C

MAX186C

MAX186B/MAX188B

No missing codes over temperature

MAX186A/MAX188A

MAX186B/MAX188B

MAX186C/MAX188C

External reference

4.096V (MAX188)

External reference, 4.096V

MAX186A/MAX188A

65kHz, VIN = 4.096VP-P (Note 4)

VDD to AGND............................................................-0.3V to +6V

VSS to AGND ............................................................+0.3V to -6V

VDD to VSS ..............................................................-0.3V to +12V

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

CH0–CH7 to AGND, DGND .............(VSS - 0.3V) to (VDD + 0.3V)

CH0–CH7 Total Input Current ..........................................±20mA

VREF to AGND ...........................................-0.3V to (VDD + 0.3V)

REFADJ to AGND.......................................-0.3V to (VDD + 0.3V)

Digital Inputs to DGND...............................-0.3V to (VDD + 0.3V)

Digital Outputs to DGND ............................-0.3V to (VDD + 0.3V)

Digital Output Sink Current .................................................25mA

Continuous Power Dissipation (TA = +70°C)

Plastic DIP (derate 11.11mW/°C above +70°C) ...........889mW

SO (derate 10.00mW/°C above +70°C) ........................800mW

SSOP (derate 8.00mW/°C above +70°C) .....................640mW

CERDIP (derate 11.11mW/°C above +70°C) ................889mW

Operating Temperature Ranges:

MAX186_C/MAX188_C ........................................0°C to +70°C

MAX186_E/MAX188_E......................................-40°C to +85°C

MAX186_M/MAX188_M ..................................-55°C to +125°C

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

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

MAX188A

MAX188B

MAX188C

MAX188D

Channel-to-Channel

Offset Matching

Signal-to-Noise + Distortion Ratio

Total Harmonic Distortion

(up to the 5th harmonic)

DC ACCURACY (Note 1)

DYNAMIC SPECIFICATIONS (10kHz sine wave input, 4.096VP-P, 133ksps, 2.0MHz external clock, bipolar input mode)

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