MAX1298 datasheet(2/20 Pages) MAXIM

2 / 20 page

12-Bit Serial-Output Temperature Sensors

with 5-Channel ADC

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VDD = 4.75V to 5.25V (MAX1298), VDD = +2.7V to 3.6V (MAX1299), external reference, VREF = +2.5V (MAX1298), VREF = +1.2V

(MAX1299), fSCLK = 2.5MHz, TA = TMIN to TMAX, unless otherwise noted. Typical values 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.

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

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

Analog Inputs to GND

(AIN0, AIN1, AIN2, AIN3, AIN4,

AIN5, REF).............................................-0.3V to (VDD + 0.3V)

Digital Inputs to GND (DIN, SCLK, CS)......-0.3V to (VDD + 0.3V)

Digital Outputs to GND (DOUT, SSTRB) ....-0.3V to (VDD + 0.3V)

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

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

Continuous Power Dissipation (TA = +70°C)

16-Pin SSOP (derate 7.1mW/°C above +70°C) .......571.4mW

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

Soldering Temperature (reflow) ..........……………………+260°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

DC ACCURACY (Note 1)

Resolution

RES

Bits

Relative Accuracy (Note 2)

INL

±1

LSB

Differential Nonlinearity

DNL

±1

LSB

Offset Error

Inputs AIN0

−AIN5

±2

LSB

Offset Temperature Coefficient

±10

µV/°C

Gain Error

Inputs AIN0

−AIN5, offset nulled

±4

LSB

VDD/4 Absolute Error

±2

LSB

Gain Temperature Coefficient

±2

ppm/

°C

Channel-to-Channel Offset

Matching

±0.5

LSB

CONVERSION RATE

Voltage measurement

1.1

Conversion Time (Note 3)

tCONV

Temperature measurement

2.2

Track/Hold Acquisition Time

tACQ

µs

Aperture Delay

tAPR

Internal Clock Frequency

fCLK

57.6

62.3

65.5

kHz

ANALOG INPUTS (AIN0

−AIN5)

Input Voltage Range (Note 4)

Measurement with respect to IN-, Figure 1

-2VREF

+2VREF

Common-Mode Range

0VDD

Input Current (Note 5)

0.1

µA

Input Capacitance

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