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參數(shù)資料
| 型號(hào)： | MAX4233 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | High-Output-Drive, 10MHz, 10V/Us, Rail-to-Rail I/O Op Amps with Shutdown in SC70 |
| 中文描述： | 高輸出驅(qū)動(dòng)、10MHz、10V/µs、滿擺幅輸入/輸出運(yùn)算放大器，帶有關(guān)斷，SC70封裝 |
| 文件頁(yè)數(shù)： | 9/18頁(yè) |
| 文件大?。?/td> | 529K |
| 代理商： | MAX4233 |
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For example, the circuit in Figure 1 has a package
power dissipation of 196mW:
where:
V
DC
= the DC component of the output voltage.
I
DC
= the DC component of the output current.
V
PEAK
= the highest positive excursion of the AC com-
ponent of the output voltage.
I
PEAK
= the highest positive excursion of the AC com-
ponent of the output current.
Therefore:
P
IC(DISS)
= V
RMS
I
RMS
COS
θ
= 196mW
Adding a coupling capacitor improves the package
power dissipation because there is no DC current to
the load, as shown in Figure 2:
Therefore:
P
IC(DISS)
= V
RMS
I
RMS
COS
θ
= 15.6mW
If the configuration in Figure 1 were used with all four of
the MAX4234 amplifiers, the absolute maximum power-
dissipation rating of this package would be exceeded
(see the
Absolute Maximum Ratings
section).
60mW Single-Supply Stereo
Headphone Driver
Two MAX4230/MAX4231s can be used as a single-sup-
ply, stereo headphone driver. The circuit shown in
Figure 2 can deliver 60mW per channel with 1% distor-
tion from a single 5V supply.
The input capacitor (C
IN
), in conjunction with R
IN
, forms
a highpass filter that removes the DC bias from the
incoming signal. The -3dB point of the highpass filter is
given by:
f
R C
2
π
dB
3
=
1
V
I
+ I
2
RMS
RMS
PEAK
=
=
=
+
=
.
.
.
/
.
V
V
V
I
A
V
mA
PEAK
2
1 0
2
RMS
DC
RMS
0 707
0
1 0
32
2
22 1
RMS
DD
DC
RMS
I
PEAK
2
mA
V
V
+ I
)
+
=
+
=
=
+
=
3 6
1 8
.
2 507
.
.
/
2
.
V
V
V
V
V
I
V
V
PEAK
2
1 0
2
1 8
32
RMS
DC
RMS
1 0
32
78 4
M
High-Output-Drive, 10MHz, 10V/μs,
Rail-to-Rail I/O Op Amps with Shutdown in SC70
_______________________________________________________________________________________
9
RIGHT
AUDIO INPUT
LEFT
AUDIO INPUT
C
IN
C
IN
R
IN
R
IN
R
F
C
OUT
V
BIAS
C
OUT
HEADPHONE JACK
TO 32
STEREO
HEADSET
R
F
MAX4230
Figure 2. Circuit Example: Adding a Coupling Capacitor
Greatly Reduces Power Dissipation of its Package
3.6V
V
IN
= 2V
P-P
R
C
32
R
MAX4230
MAX4231
Figure 1. MAX4230/MAX4231 Used in Single-Supply Operation
Circuit Example
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX4234 | High-Output-Drive, 10MHz, 10V/Us, Rail-to-Rail I/O Op Amps with Shutdown in SC70 |
| MAX4230AXK-T | High-Output-Drive, 10MHz, 10V/Us, Rail-to-Rail I/O Op Amps with Shutdown in SC70 |
| MAX4231AXT-T | High-Output-Drive, 10MHz, 10V/Us, Rail-to-Rail I/O Op Amps with Shutdown in SC70 |
| MAX4237AEUA | SOT23, Very High Precision, 3V/5V Rail-to-Rail Op Amps |
| MAX4236AEUA | LJT 100C 100#22D PIN PLUG |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX4233ABC | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX4233ABC+ | 制造商:Maxim Integrated Products 功能描述:OP AMP DUAL GP R-R I/O 2.5V/5.5V 10UCSP - Rail/Tube |
| MAX4233ABC+G45 | 制造商:Maxim Integrated Products 功能描述:HIGH-OUTPUT-DRIVE, 10MHZ, 10V/?S, RAIL-TO-RAIL I/O OP AMPS W - Rail/Tube |
| MAX4233ABC+T | 功能描述:運(yùn)算放大器 - 運(yùn)放 10MHz 10V/us Rail-Rail I/O RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| MAX4233ABC+TG45 | 功能描述:運(yùn)算放大器 - 運(yùn)放 10MHz 10V/us Rail-Rail I/O RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
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