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LMT70A Datasheet(PDF) 7 Page - Texas Instruments

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Part # LMT70A
Description  Precision Analog Temperature Sensor, RTD and Precision NTC Thermistor IC
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LMT70A Datasheet(HTML) 7 Page - Texas Instruments

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-0.60
-0.50
-0.40
-0.30
-0.20
-0.10
0.00
0.10
0.20
0.30
0.40
0.50
0.60
±60 ±40 ±20
0
20
40
60
80
100 120 140 160
DUT Temperature (
ƒC)
C001
Max Limit
Min Limit
Accuracy (
SC)
C005
-0.5
+0.5
0
-0.33°C
Min Limit
0.33°C
Max Limit
VDD
TAO
tPOWER
99%
2V
T_ON
TAO
tT_ON
99%
0.66xVDD
LMT70, LMT70A
www.ti.com
SNIS187A – MARCH 2015 – REVISED JULY 2015
8.7 Switching Characteristics
Limits apply for TA = TJ = TMIN to TMAX and VDD of 2.00V to 5.5V and VDD ≥ VTAO + 1V, unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Power-on Time to 99% of final
CL=0 pF to 1100 pF; VDD
tPOWER
0.6
1
ms
voltage value
connected T_ON
T_ON Time to 99% of final voltage
tT_ON
value (note dependent on RON and
CL=150pF
30
500
µs
C load)
CT_ON
T_ON Digital Input Capacitance
2.2
pF
Figure 1. Definition of tT_ON
Figure 2. Definition of tPOWER
8.8 Typical Performance Characteristics
VDD=2.7V
using LUT (Look-Up Table) and linear interporlation for conversion
VDD=2.7V
of voltage to temperature
using LUT table for conversion of voltage to temperature
Figure 3. Temperature Accuracy
Figure 4. Accuracy Histogram at -55°C
Copyright © 2015, Texas Instruments Incorporated
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