OPA145 Datasheet, PDF (7/40 Pages) Texas Instruments – High-Precision, Low-Noise, Rail-to-Rail Output, 5.5-MHz JFET Operational Amplifiers

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OPA145, OPA2145, OPA4145
SBOS427 – JUNE 2017
7.5 Thermal Information: OPA2145
THERMAL METRIC⁽¹⁾
D (SOIC)
OPA2145
DGK (VSSOP)
DSD (SON)
UNIT
8 PINS
8 PINS
8 PINS
R_θJA
R_θJC(top)
R_θJB
Ψ_JT
Ψ_JB
R_θJC(bot)
Junction-to-ambient thermal resistance
Junction-to-case (top) thermal resistance
Junction-to-board thermal resistance
Junction-to-top characterization parameter
Junction-to-board characterization parameter
Junction-to-case (bottom) thermal resistance
136
74
62
19.7
54.8
N/A
143
47
64
5.3
62.8
N/A
47
°C/W
47
°C/W
22
°C/W
0.7
°C/W
22.6
°C/W
9.5
°C/W
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report.
7.6 Thermal Information: OPA4145
THERMAL METRIC⁽¹⁾
D (SOIC)
OPA4145
PW (TSSOP)
RUM (QFN)
UNIT
14 PINS
14 PINS
16 PINS
R_θJA
R_θJC(top)
R_θJB
Ψ_JT
Ψ_JB
R_θJC(bot)
Junction-to-ambient thermal resistance
Junction-to-case (top) thermal resistance
Junction-to-board thermal resistance
Junction-to-top characterization parameter
Junction-to-board characterization parameter
Junction-to-case (bottom) thermal resistance
86
46
41
11.3
40.7
N/A
93
28
34
1.9
33.1
N/A
35
°C/W
33
°C/W
13
°C/W
0.3
°C/W
13.0
°C/W
3.3
°C/W
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report.
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