Datasheet

LM82
SNIS113D –JANUARY 2000–REVISED MARCH 2013 www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Absolute Maximum Ratings
(1)
Supply Voltage −0.3 V to 6.0 V
Voltage at SMBData,
SMBCLK, T_CRIT_A & INT pins −0.5V to 6V
Voltage at Other Pins −0.3 V to (V
CC
+ 0.3 V)
D− Input Current ±1 mA
Input Current at All Other Pins
(2)
5 mA
Package Input Current
(2)
20 mA
SMBData, T_CRIT_A, INT Output Sink Current 10 mA
Storage Temperature −65°C to +150°C
Soldering Information, Lead Temperature
SSOP Package
(3)
Vapor Phase (60 seconds) 215°C
Infrared (15 seconds) 220°C
ESD Susceptibility
(4)
Human Body Model 2000 V
Machine Model 250 V
(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not
apply when operating the device beyond its rated operating conditions.
(2) When the input voltage (V
I
) at any pin exceeds the power supplies (V
I
< GND or V
I
> V
CC
), the current at that pin should be limited to 5
mA. The 20 mA maximum package input current rating limits the number of pins that can safely exceed the power supplies with an input
current of 5 mA to four. Parasitic components and or ESD protection circuitry are shown in the figure below for the LM82's pins. The
nominal breakdown voltage of the zener D3 is 6.5 V. Care should be taken not to forward bias the parasitic diode, D1, present on pins:
D+, D−, ADD1 and ADD0. Doing so by more than 50 mV may corrupt a temperature or voltage measurement.
(3) See the section titled “Surface Mount” found in a current Texas Instruments Linear Data Book for other methods of soldering surface
mount devices.
(4) Human body model, 100 pF discharged through a 1.5 kΩ resistor. Machine model, 200 pF discharged directly into each pin.
Operating Ratings
Specified Temperature Range T
MIN
to T
MAX
LM82 −40°C to +125°C
Supply Voltage Range (V
CC
) +3.0V to +3.6V
Temperature-to-Digital Converter Characteristics
Unless otherwise noted, these specifications apply for V
CC
=+3.0 Vdc to 3.6 Vdc. Boldface limits apply for T
A
= T
J
= T
MIN
to
T
MAX
; all other limits T
A
= T
J
=+25°C, unless otherwise noted.
Typical
(1)
Limits
(2)
Units
Parameter Conditions
(Limit)
Temperature Error using Local Diode
(3)
T
A
= 0 °C to +85°C, ±1 ±3 °C (max)
V
CC
=+3.3V
T
A
= −40 °C to +125°C, ±4 °C (max)
V
CC
=+3.3V
Temperature Error using Remote Diode
(3)
T
A
= +60 °C to +100°C, ±3
°C (max)
V
CC
=+3.3V
T
A
= 0 °C to +100°C, ±3 °C (max)
V
CC
=+3.3V
T
A
= 0 °C to +125°C, ±4 °C (max)
V
CC
=+3.3V
Resolution 8 Bits
1 °C
(1) Typicals are at T
A
= 25°C and represent most likely parametric norm.
(2) Limits are ensured to AOQL (Average Outgoing Quality Level).
(3) The Temperature Error will vary less than ±1.0°C for a variation in V
CC
of 3V to 3.6V from the nominal of 3.3V.
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