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參數(shù)資料
| 型號： | OPA2680U |
| 英文描述： | Voltage-Feedback Operational Amplifier |
| 中文描述： | 電壓反饋運算放大器 |
| 文件頁數(shù)： | 10/12頁 |
| 文件大?。?/td> | 210K |
| 代理商： | OPA2680U |
OPA2604
10
Copper leadframe construction used in the OPA2604 im-
proves heat dissipation compared to conventional plastic
packages. To achieve best heat dissipation, solder the device
directly to the circuit board and use wide circuit board traces.
OUTPUT CURRENT LIMIT
Output current is limited by internal circuitry to approxi-
mately
±
40mA at 25
°
C. The limit current decreases with
increasing temperature as shown in the typical curves.
FIGURE 4. Three-Pole Generalized Immittance Converter (GIC) Low-Pass Filter.
R
5
2k
V
O
C
1000pF
Low-pass
3-pole Butterworth
f
–3dB
= 40kHz
R
1
6.04k
V
IN
R
2
4.02k
R
2
4.02k
C
1000pF
C
1000pF
R
4
5.36k
See Application Bulletin AB-026
for information on GIC filters.
1 2
OPA2604
1 2
OPA2604
1 2
OPA2604
FIGURE 3. Three-Pole Low-Pass Filter.
POWER DISSIPATION
The OPA2604 is capable of driving 600
loads with power
supply voltages up to
±
24V. Internal power dissipation is
increased when operating at high power supply voltage. The
typical performance curve, Power Dissipation vs Power Sup-
ply Voltage, shows quiescent dissipation (no signal or no
load) as well as dissipation with a worst case continuous sine
wave. Continuous high-level music signals typically produce
dissipation significantly less than worst case sine waves.
R
4
22k
R
3
10k
V
O
C
2000pF
R
2
22k
C
3000pF
R
1
2.7k
V
IN
f
p
= 20kHz
C
3
100pF
1 2
OPA2604
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