Datasheet

LM95172
SNOSB33B –DECEMBER 2009–REVISED MARCH 2013 www.ti.com
Temperature-to-Digital Converter Characteristics
Unless otherwise noted, these specifications apply for V
DD ANALOG
= V
DD IO
= 3.0V to 3.6V.
(1)
Boldface limits apply for T
A
=−40°C to +200°C; all other limits T
A
= 25°C, unless otherwise noted.
LM95172EWG Units
Parameter Conditions Typical
(2)
Limits
(3)
(Limit)
T
A
= +175°C to +200°C ±3.0
T
A
= +130°C to +160°C ±1.0
Temperature
T
A
= +120°C to +130°C ±2.0
Accuracy
(1)
°C (max)
T
A
= +160°C to +175°C ±2.0
T
A
= −40°C to +120°C ±3.5
Res 1 Bit Res 0 Bit 13 Bits
0 0 0.0625 °C
14 Bits
0 1
0.03125 °C
Resolution
15 Bits
1 0
0.015625 °C
16 Bits
1 1
0.0078125 °C
For 13 Bits Resolution 43
(5)
Temperature
For 14 Bits Resolution 87
(5)
Conversion ms (max)
For 15 Bits Resolution 175
(5)
Time
(4)
For 16 BIts Resolution 350
(5)
T
A
= −40°C to 400 456
140°C
Bus Inactive T
A
= −40°C to 510
Continuous Conversion Mode 175°C
T
A
= −40°C to 500 650
μA (max)
200°C
Total Quiescent
Current
(6)
T
A
= −40°C to 4
140°C
T
A
= −40°C to 12
Shutdown Mode
175°C
T
A
= −40°C to 28 75
200°C
0.9 V (min)
T
A
= −40°C to 140°C
2.1 V (max)
0.8 V (min)
Power-On Reset
T
A
= −40°C to 175°C
Threshold
2.1 V (max)
0.3 V (min)
T
A
= −40°C to 200°C
2.1 V (max)
(1) The LM95172EWG will operate properly over the V
DD ANALOG
= 3.0V to 5.5V and V
DD IO
= 3.0V to 5.5V supply voltage ranges.
(2) Typical values represent most likely parametric norms at specific conditions (Example Vcc; specific temperature) and at the
recommended Operating Conditions at the time of product characterizations and are not ensured.
(3) The Electrical characteristics tables list ensured specifications under the listed Operating Ratings except as otherwise modified or
specified by the Electrical Characteristics Conditions and/or Notes. Typical specifications are estimations only and are not ensured.
(4) This specification is provided only to indicate how often temperature data is updated. The LM95172EWG can be read at any time
without regard to conversion state (and will yield last conversion result). A conversion in progress will not be interrupted. The output shift
register will be updated at the completion of the read and a new conversion restarted.
(5) Specification is ensured by characterization and is not tested in production
(6) Total Quiescent Current includes the sum of the currents into the V
DD ANALOG
and the V
DD IO
pins.
4 Submit Documentation Feedback Copyright © 2009–2013, Texas Instruments Incorporated
Product Folder Links: LM95172