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LTC2997 Datasheet(PDF) 5 Page - Linear Technology

Part # LTC2997
Description  Remote/Internal Temperature Sensor
PDF  18 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC2997 Datasheet(HTML) 5 Page - Linear Technology

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LTC2997
5
2997fa
LTC2997 Internal Sensor
Thermal Step Response
TYPICAL PERFORMANCE CHARACTERISTICS
Load Regulation of VPTAT –
Voltage vs Current
Supply Current vs Temperature
Load Regulation of VREF –
Voltage vs Current
LOAD CURRENT (mA)
1.780
1.800
1.790
0
2997 G10
1.820
1.810
–4
–2
2
4
VCC = 2.5V
VCC = 3.5V
VCC = 4.5V
VCC = 5.5V
TIME (s)
AIR
0
–50
–25
0
100
75
50
25
5
2997 G13
125
LTC2997 CONNECTED VIA 5 INCH
30AWG WRAPPING WIRES
12
3
4
ICE
WATER
BOILING
WATER
TA (°C)
–50
150
160
190
180
170
50
100
2997 G12
200
–25
0
25
75
125 150
TA = 25°C, VCC = 3.3V unless otherwise noted.
LOAD CURRENT (mA)
–4
1.22
1.23
1.26
1.25
1.24
–2
0
4
2997 G11
1.27
1.28
2
VCC = 2.5V
VCC = 3.5V
VCC = 4.5V
VCC = 5.5V
ILEAKAGE (nA)
–200
–6
4
2
0
–2
–4
0
100
2997 G14
6
–100
200
Remote Temperature Error vs
Leakage Current at D+ with
Remote Diode at 25°C, TRMT
Single Wire Remote Temperature
Error vs Potential Difference Between
Remote and Local Ground (VAC)
FREQUENCY (kHz)
0.1
0.01
1
0.1
10
1000
2997 G15
10
1
100
VAC = 50mVP-P



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