MAX1668_00 Datasheet, PDF (2/16 Pages) Maxim Integrated Products – Multichannel Remote/Local Temperature Sensor

Multichannel Remote/Local
Temperature Sensor
ABSOLUTE MAXIMUM RATINGS
V_CC to GND ..............................................................-0.3V to +6V
DXP_, ADD_, STBY to GND........................-0.3V to (V_CC + 0.3V)
DXN_ to GND ........................................................-0.3V to +0.8V
SMBCLK, SMBDATA, ALERT to GND ......................-0.3V to +6V
SMBDATA, ALERT Current .................................-1mA to +50mA
DXN_ Current......................................................................±1mA
Continuous Power Dissipation (T_A = +70°C)
QSOP (derate 8.30mW/°C above +70°C) .....................667mW
Operating Temperature Range .........................-55°C to +125°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_CC = +3.3V, STBY = V_CC, configuration byte = X0XXXX00, T_A = 0°C to +125°C, unless otherwise noted.)
PARAMETER
CONDITIONS
MIN TYP
ADC AND POWER SUPPLY
Temperature Resolution (Note 1) Monotonicity guaranteed
8
Initial Temperature Error,
Local Diode (Note 2)
Temperature Error, Remote Diode
(Notes 2 and 3)
Temperature Error, Local Diode
(Notes 1 and 2)
Supply-Voltage Range
T_A = +60°C to +100°C
T_A = 0°C to +125°C
T_R = +60°C to +100°C
T_R = -55°C to +125°C
Including long-term drift
-2
-3
-3
-5
T_A = +60°C to +100°C -2.5
T_A = 0°C to +85°C
-3.5
3.0
Undervoltage Lockout Threshold
Undervoltage Lockout Hysteresis
V_CC input, disables A/D conversion, rising edge
2.60
2.8
50
Power-On Reset Threshold (POR)
POR Threshold Hysteresis
V_CC, falling edge
1.3
1.8
50
Logic inputs SMBus static
3
Standby Supply Current
forced to V_CC
or GND
Hardware or software standby, SMB-
CLK at 10kHz
5
Average Operating Supply Current
Average measured over 4s; logic inputs forced
V_CC or GND
400
Conversion Time
From stop bit to conversion complete (all channels)
260
320
High level (POR state) 70
100
Low level (POR state)
7
10
Remote-Diode Source Current
DXP_ forced to 1.5V
Configuration byte =
X0XXXX10, high level
200
Configuration byte =
X0XXXX01, high level
50
DXN_ Source Voltage
0.7
Address Pin Bias Current
ADD0, ADD1; momentary upon power-on reset
160
MAX UNITS
Bits
2
°C
3
3
°C
5
2.5
°C
3.5
5.5
V
2.95
V
mV
2.3
V
mV
10
µA
12
700
µA
380
ms
130
13
µA
V
µA
2 _______________________________________________________________________________________