MAX1618 Datasheet, PDF (2/20 Pages) Maxim Integrated Products – Remote Temperature Sensor with SMBus Serial Interface

Remote Temperature Sensor
with SMBus Serial Interface
ABSOLUTE MAXIMUM RATINGS
V_CC to GND ..............................................................-0.3V to +6V
DXP, ADD_ to GND ....................................-0.3V to (V_CC + 0.3V)
DXN to GND ..........................................................-0.3V to +0.8V
SMBCLK, SMBDATA, ALERT, STBY to GND ...........-0.3V to +6V
SMBDATA Current.................................................-1mA to 50mA
DXN Current. ......................................................................±1mA
ESD Protection (all pins, Human Body Model).. .............± 2000V
Continuous Power Dissipation (T_A = +70°C)
µMAX (derate 5.6mW/°C above +70°C) ....................444mW
Operating Temperature Range (extended) ......-55°C to +125°C
Junction Temperature. ....................................................+150°C
Storage Temperature Range ............................-65°C to +150°C
Lead Temperature (soldering, 10sec) ............................+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_CC = +3.3V, configuration byte register = X8h, T_A = 0°C to +85°C, unless otherwise noted.)
PARAMETER
ADC AND POWER SUPPLY
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Temperature Resolution
(Note 1)
Temperature Error,
Remote Diode (Note 2)
Supply-Voltage Range
Undervoltage Lockout
Threshold
V_CC
UVLO
Monotonicity guaranteed
T_R = +60°C to +100°C
T_R = +55°C to +125°C
V_CC input, disables A/D conversion,
rising edge
8
Bits
-3
3
°C
-5
5
3
5.5
V
2.6
2.8
2.95
V
Undervoltage Lockout Hysteresis
Power-On Reset Threshold
POR Threshold Hysteresis
Standby Supply Current
V_CC, falling edge
SMBus static
50
mV
1
1.7
2.5
V
50
mV
3
10
µA
Standby Supply Current
Hardware or software standby,
SMBCLK at 10kHz
5
µA
Average Operating
Supply Current
Autoconvert mode, average meAaustoucreodnvoevret r
4sec, 16 conv/sec
mode, average
450
900
µA
Conversion Time
Conversion Rate Timing Error
t_CONV
From stop bit to conversion complete
Autoconvert mode
47
62
-25
78
ms
25
%
Remote-Diode Source Current
DXP forced to DXN + 0.65V,
ID = 1 (high)
High level 80
100
120
µA
Low level
8
10
12
DXN Source Voltage
0.7
V
ADDO, ADD1 Bias Current
Momentary upon power-on reset
160
µA
SMBus INTERFACE
STBY SMBCLK, SMBDATA
Input High Voltage
V_IH
V_CC = 3.0V
2.2
V
STBY, SMBCLK, SMBDATA
Input Low Voltage
V_IL
V_CC = 3.0V to 5.5V
0.8
V
STBY, SMBCLK, SMBDATA
Input Current
Logic inputs forced to V_CC or GND
-1
1
µA
SMBCLK, SMBDATA
Output Low Sink Current
SMBCLK, SMBDATA forced to 0.4V
6
mA
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