MAX191AMRG datasheet(2/24 Pages) MAXIM

Part #	MAX191AMRG

Description	Low-Power, 12-Bit Sampling ADC with Internal Reference and Power-Down

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Manufacturer	MAXIM [Maxim Integrated Products]

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Low-Power, 12-Bit Sampling ADC

with Internal Reference and Power-Down

2

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VDD = 5V ±5%, VSS = 0V or -5V ±5%, fCLK = 1.6MHz, 50% duty cycle, AIN- = AGND, BIP = 0V, slow-memory mode, internal-reference

mode, reference compensation mode—external, synchronous operation, Figure 6, TA = TMIN to TMAX, unless otherwise noted.) (Note 1)

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 DGND............................................................-0.3V to +7V

VSS to AGND ............................................................-7V to +0.3V

VDD to VSS ..............................................................................12V

AGND, VREF, REFADJ to DGND................-0.3V to (VDD + 0.3V)

AIN+, AIN-, PD to VSS.................................-0.3V to (VDD + 0.3V)

CS, RD, CLK, BIP, HBEN, PAR, to DGND....-0.3V to (V

DD + 0.3V)

BUSY, D0–D7 to DGND..............................-0.3V to (V

DD + 0.3V)

Continuous Power Dissipation (TA = +70°C)

Narrow Plastic DIP (derate 13.33mW/°C above +70°C)....1067mW

Wide SO (derate 11.76mW/°C above +70°C) ......................941mW

Narrow CERDIP (derate 12.50mW/°C above +70°C) ........1000mW

Operating Temperature Ranges

MAX191_C_ _ ................................................................0°C to +70°C

MAX191_E_ _ .............................................................-40°C to +85°C

MAX191_M_ _ ..........................................................-55°C to +125°C

Storage Temperature Range.....................................-65°C to +160°C

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

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Offset Error

MAX191B

±2

LSB

MAX191A

±1

Differential Nonlinearity

No missing codes over temperature

±1

LSB

Integral Nonlinearity

MAX191B

±1

LSB

MAX191A

±2

Gain Error (Note 3)

MAX191B

±3

LSB

Resolution

12

Bits

MAX191A

±1/2

Gain-Error Tempco (Note 4)

Excludes internal-reference drift

±0.2

ppm/°C

1kHz input signal, TA = +25°C

70

dB

1kHz input signal, TA = +25°C

-80

dB

Spurious-Free Dynamic Range

1kHz input signal, TA = +25°C

80

dB

Synchronous CLK (12 to 13 CLKs)

Conversion Time (Note 5)

Internal CLK, CL = 120pF

6

12

18

µs

Track/Hold Acquisition Time

2

µs

Aperture Delay

25

ns

Aperture Jitter

50

ps

0.1

1.6

MHz

Signal-to-Noise plus Distortion

Ratio

Total Harmonic Distortion

(up to the 5th Harmonic)

External Clock Frequency

Range (Note 6)

SYMBOL

DNL

INL

SINAD

SFDR

THD

tCONV

fCLK

7.50

8.125

DC ACCURACY (Note 2)

DYNAMIC ACCURACY (sample rate = 100kHz, VIN = 4Vp-p)

CONVERSION RATE

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