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LF298MX Arkusz danych(PDF) 4 Page - Texas Instruments

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Numer części LF298MX
Szczegółowy opis  Monolithic Sample-and-Hold Circuits
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LF198-N, LF298, LF398-N
LF198A-N, LF398A-N
SNOSBI3B – JULY 2000 – REVISED NOVEMBER 2015
www.ti.com
6 Specifications
6.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)
(1) (2)
MIN
MAX
UNIT
Supply voltage
±18
V
Power dissipation
(Package limitation, see (3))
500
mW
LF198-N, LF198A-N
–55
125
°C
Operating ambient temperature
LF298
–25
85
°C
LF398-N, LF398A-N
0
70
°C
Input voltage
±18
V
Logic-to-logic reference differential voltage (see (4))
7
−30
V
Output short circuit duration
Indefinite
Hold capacitor short circuit duration
10
sec
H package (soldering, 10 sec.)
260
°C
N package (soldering, 10 sec.)
260
°C
Lead temperature
M package: vapor phase (60 sec.)
215
°C
Infrared (15 sec.)
220
°C
Storage temperature, Tstg
–65
150
°C
(1)
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended
Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2)
If Military/Aerospace specified devices are required, please contact the TI Sales Office/ Distributors for availability and specifications.
(3)
The maximum power dissipation must be derated at elevated temperatures and is dictated by TJMAX, RθJA, and the ambient
temperature, TA. The maximum allowable power dissipation at any temperature is PD = (TJMAX − TA) / RθJA, or the number given in the
Absolute Maximum Ratings, whichever is lower. The maximum junction temperature, TJMAX, for the LF198-N and LF198A-N is 150°C;
for the LF298, 115°C; and for the LF398-N and LF398A-N, 100°C.
(4)
Although the differential voltage may not exceed the limits given, the common-mode voltage on the logic pins may be equal to the
supply voltages without causing damage to the circuit. For proper logic operation, however, one of the logic pins must always be at least
2 V below the positive supply and 3 V above the negative supply.
6.2 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
MIN
NOM
MAX
UNIT
Supply voltage
±15
V
LF198-N, LF198A-N
–55
125
TJ
Ambient temperature
LF298
–25
85
°C
LF398-N, LF398A-N
0
70
6.3 Thermal Information
LF398-N
LF298, LF398-N
LFx98x
THERMAL METRIC(1)
P (PDIP)
D (SOIC)
LMC (TO-99)
UNIT
8 PINS
14 PINS
8 PINS
RθJA
Junction-to-ambient thermal resistance
48.9
80.6
85(2)
°C/W
RθJC(top)
Junction-to-case (top) thermal resistance
37.3
38.1
20
°C/W
RθJB
Junction-to-board thermal resistance
26.2
35.4
°C/W
ψJT
Junction-to-top characterization parameter
14.3
5.8
°C/W
ψJB
Junction-to-board characterization parameter
26.0
35.1
°C/W
(1)
For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report, SPRA953.
(2)
Board mount in 400 LF/min air flow.
4
Submit Documentation Feedback
Copyright © 2000–2015, Texas Instruments Incorporated
Product Folder Links: LF198-N LF298 LF398-N LF198A-N LF398A-N


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