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Rainbow Electronics MAX1231 User Manual

Page 2

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MAX1227/MAX1229/MAX1231

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

2

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(V

DD

= +2.7V to +3.6V, f

SAMPLE

= 300kHz, f

SCLK

= 4.8MHz (50% duty cycle), V

REF

= 2.5V, T

A

= T

MIN

to T

MAX

, unless otherwise

noted. Typical values are at T

A

= +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.

V

DD

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

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

DD

+ 0.3V)

AIN0–AIN13, REF-/AIN_, CNVST/AIN_,

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

DD

+ 0.3V)

Maximum Current into Any Pin............................................50mA
Continuous Power Dissipation (T

A

= +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

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

DC ACCURACY (NOTE 1)

Resolution

RES

12

Bits

Integral Nonlinearity

INL

±1.0

LSB

Differential Nonlinearity

DNL

No missing codes over temperature

±1.0

LSB

Offset Error

±0.5

±4.0

LSB

Gain Error

(Note 2)

±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, 2.5V

P-P

, 300ksps, f

SCLK

= 4.8MHz)

Signal-to-Noise Plus Distortion

SINAD

70

dB

Total Harmonic Distortion

THD

Up to the 5th harmonic

-82

dBc

Spurious-Free Dynamic Range

SFDR

80

dBc

Intermodulation Distortion

IMD

f

in1

= 9.9kHz, f

in2

= 10.2kHz

76

dBc

Full-Power Bandwidth

-3dB point

1

MHz

Full-Linear Bandwidth

S / (N + D) > 68dB

25

kHz