Datasheet
LM95214
SNIS146A –MARCH 2007–REVISED MARCH 2013
www.ti.com
Temperature-to-Digital Converter Electrical Characteristics (continued)
Unless otherwise noted, these specifications apply for V
DD
= +3.0Vdc to 3.6Vdc. Boldface limits apply for T
A
= T
J
= T
MIN
≤
T
A
≤ T
MAX
; all other limits T
A
= T
J
= +25°C, unless otherwise noted.
Parameter Conditions Typical
(1)
Limits
(2)
Units
(Limit)
Local Diode Measurement Resolution 11 Bits
0.125 °C
Remote Diode Measurement Resolution Digital Filter Off 11 Bits
0.125 °C
Digital Filter On (Remote Diodes 1 and 2 13 Bits
only)
0.03125 °C
Conversion Time of All Temperatures at the All Channels are Enabled in Default State 1100 1210 ms (max)
Fastest Setting
(5)
1 External Channel 31 34 ms (max)
Local only 30 33 ms (max)
Quiescent Current
(6)
SMBus Inactive, 1Hz Conversion Rate, 570 800 µA (max)
channels in default state
Shutdown 360 µA
D− Source Voltage 0.4 V
Remote Diode Source Current High level 160 230 µA (max)
Low level 10
Power-On Reset Threshold Measured on V
DD
input, falling edge 2.8 V (max)
1.6 V (min)
TCRIT1 Pin Temperature Threshold Default Diodes 1 and 2 only +110 °C
TCRIT2 Pin Temperature Threshold Default all channels +85 °C
TCRIT3 Pin Temperature Threshold Default Diodes 3 and 4 only +85 °C
(5) This specification is provided only to indicate how often temperature data is updated. The LM95214 can be read at any time without
regard to conversion state (and will yield last conversion result).
(6) Quiescent current will not increase substantially with an SMBus communication.
Logic Electrical Characteristics
DIGITAL DC CHARACTERISTICS
Unless otherwise noted, these specifications apply for V
DD
= +3.0Vdc to 3.6Vdc. 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.
Symbol Parameter Conditions Typical
(1)
Limits
(2)
Units
(Limit)
SMBDAT, SMBCLK INPUTS
V
IN(1)
Logical “1” Input Voltage 2.1 V (min)
V
IN(0)
Logical “0”Input Voltage 0.8 V (max)
V
IN(HYST)
SMBDAT and SMBCLK Digital Input Hysteresis 400 mV
I
IN(1)
Logical “1” Input Current V
IN
= V
DD
0.005 10 µA (max)
I
IN(0)
Logical “0” Input Current V
IN
= 0V −0.005 -10 µA (max)
C
IN
Input Capacitance 5 pF
A0 DIGITAL INPUT
V
IH
Input High Voltage 0.90 × V
DD
V (min)
V
IM
Input Middle Voltage 0.57 × V
DD
V (max)
0.43 × V
DD
V (min)
V
IL
Input Low Voltage 0.10 × V
DD
V (max)
I
IN(1)
Logical "1" Input Current V
IN
= V
DD
−0.005 −10 µA (min)
I
IN(0)
Logical "0" Input Current V
IN
= 0V 0.005 10 µA (max)
C
IN
Input Capacitance 5 pF
(1) Typicals are at T
A
= 25°C and represent most likely parametric norm.
(2) Limits are specified to AOQL (Average Outgoing Quality Level).
6 Submit Documentation Feedback Copyright © 2007–2013, Texas Instruments Incorporated
Product Folder Links: LM95214