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參數資料
| 型號： | 660025 |
| 廠商： | Linear Technology Corporation |
| 元件分類： | 差分放大器 |
| 英文描述： | Very Low Noise, Differential Amplifier and 2.5MHz Lowpass Filter |
| 中文描述： | 極低噪聲，差分放大器和2.5MHz的低通濾波器 |
| 文件頁數： | 10/12頁 |
| 文件大小： | 177K |
| 代理商： | 660025 |
LT6600-2.5
10
660025i
Currents), the load impedance is small and the ambient
temperature is maximum. To compute the junction tem-
perature, measure the supply current under these worst-
case conditions, estimate the thermal resistance from
Table 2, then apply the equation for T
J
. For example, using
the circuit in Figure 3 with DC differential input voltage of
1V, a differential output voltage of 4V, no load resistance
and an ambient temperature of 85
°
C, the supply current
APPLICATIU
W
U
U
(current into Pin 3) measures 37.6mA. Assuming a PC
board layout with a 35mm
2
copper trace, the
θ
JA
is
100
°
C/W. The resulting junction temperature is:
T
J
= T
A
+ (P
D
θ
JA
) = 85 + (5 0.0376 100) = 104
°
C
When using higher supply voltages or when driving small
impedances, more copper may be necessary to keep T
J
below 150
°
C.
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