MAX1231(2003) Ver la hoja de datos (PDF) - Maxim Integrated

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MAX1231
(Rev.:2003)

12-Bit 300ksps ADCs with FIFO, Temp Sensor, Internal Reference

Maxim Integrated 

12-Bit 300ksps ADCs with FIFO,

Temp Sensor, Internal Reference

ABSOLUTE MAXIMUM RATINGS

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

CS, SCLK, DIN, EOC, DOUT to GND.........-0.3V to (VDD + 0.3V)

AIN0–AIN13, REF-/AIN_, CNVST/AIN_,

REF+ to GND.........................................-0.3V to (VDD + 0.3V)

Maximum Current into Any Pin............................................50mA

Continuous Power Dissipation (TA = +70°C)

16-Pin QSOP (derate 8.3mW/°C above +70°C)...........667mW

20-Pin QSOP (derate 9.1mW/°C above +70°C)...........727mW

24-Pin QSOP (derate 9.5mW/°C above +70°C)...........762mW

28-Pin QFN 5mm x 5mm

(derate 20.8mW/°C above +70°C) ........................1667mW

Operating Temperature Ranges

MAX12__C__.......................................................0°C to +70°C

MAX12__E__ ....................................................-40°C to +85°C

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

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

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

ELECTRICAL CHARACTERISTICS

(VDD = +2.7V to +3.6V, fSAMPLE = 300kHz, fSCLK = 4.8MHz (50% duty cycle), VREF = 2.5V, TA = TMIN to TMAX, unless otherwise

noted. Typical values are at TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

DC ACCURACY (NOTE 1)

Resolution

RES

12

Integral Nonlinearity

INL

Differential Nonlinearity

DNL No missing codes over temperature

Bits

±1.0 LSB

±1.0 LSB

Offset Error

Gain Error

(Note 2)

±0.5 ±4.0 LSB

±0.5 ±4.0 LSB

Offset Error Temperature

Coefficient

±2

ppm/°C

FSR

Gain Temperature Coefficient

±0.8

ppm/°C

Channel-to-Channel Offset

Matching

±0.1

LSB

DYNAMIC SPECIFICATIONS (10kHz sine wave input, 2.5VP-P, 300ksps, fSCLK = 4.8MHz)

Signal-to-Noise Plus Distortion

SINAD

70

dB

Total Harmonic Distortion

Spurious-Free Dynamic Range

Intermodulation Distortion

Full-Power Bandwidth

THD

SFDR

IMD

Up to the 5th harmonic

fin1 = 9.9kHz, fin2 = 10.2kHz

-3dB point

-82

dBc

80

dBc

76

dBc

1

MHz

Full-Linear Bandwidth

S / (N + D) > 68dB

25

kHz

2 _______________________________________________________________________________________

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