MAX1298 Datasheet, PDF (2/20 Pages) Maxim Integrated Products – 12-Bit Serial-Output Temperature Sensors with 5-Channel ADC

12-Bit Serial-Output Temperature Sensors
with 5-Channel ADC
ABSOLUTE MAXIMUM RATINGS
V_DD to GND.……………………………………………-0.3V to +6V
SHO to GND ...............................................-0.3V to (V_DD + 0.3V)
Analog Inputs to GND
(AIN0, AIN1, AIN2, AIN3, AIN4,
AIN5, REF).............................................-0.3V to (V_DD + 0.3V)
Digital Inputs to GND (DIN, SCLK, CS)......-0.3V to (V_DD + 0.3V)
Digital Outputs to GND (DOUT, SSTRB) ....-0.3V to (V_DD + 0.3V)
Digital Output Sink Current ..…………………………………25mA
Maximum Current into Any Pin……………………………….50mA
Continuous Power Dissipation (T_A = +70°C)
16-Pin SSOP (derate 8.00mW/°C above +70°C) ........667mW
Operating Temperature Range
MAX129_ _EAE ...............................................-40°C to +85°C
Junction Temperature....……………………………………+150°C
Storage Temperature Range .............................-65°C to +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
(V_DD = 4.75V to 5.25V (MAX1298), V_DD = +2.7V to 3.6V (MAX1299), external reference, V_REF = +2.5V (MAX1298), V_REF = +1.2V
(MAX1299), f_SCLK = 2.5MHz, T_A = T_MIN to T_MAX, unless otherwise noted. Typical values are at T_A = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
DC ACCURACY (Note 1)
Resolution
RES
12
Bits
Relative Accuracy (Note 2)
Differential Nonlinearity
Offset Error
INL
DNL
Inputs AIN0−AIN5
±1
LSB
±1
LSB
±2
LSB
Offset Temperature Coefficient
Gain Error
V_DD/4 Absolute Error
Gain Temperature Coefficient
Inputs AIN0−AIN5, offset nulled
±10
µV/°C
±4
LSB
±2
LSB
±2
ppm/ °C
Channel-to-Channel Offset
Matching
±0.5
LSB
CONVERSION RATE
Conversion Time (Note 3)
t_CONV
Voltage measurement
Temperature measurement
1.1
ms
2.2
Track/Hold Acquisition Time
Aperture Delay
Internal Clock Frequency
ANALOG INPUTS (AIN0−AIN5)
t_ACQ
t_APR
f_CLK
16
µs
30
ns
57.6 62.3 65.5 kHz
Input Voltage Range (Note 4)
Common-Mode Range
Input Current (Note 5)
Measurement with respect to IN-, Figure 1
-2V _REF
+2V _REF
V
0
V_DD
V
0.1
5
µA
Input Capacitance
16
pF
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