- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄376243 > OP275GS (ANALOG DEVICES INC) Dual Bipolar/JFET, Audio Operational Amplifier PDF資料下載
參數(shù)資料
| 型號(hào)： | OP275GS |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | Dual Bipolar/JFET, Audio Operational Amplifier |
| 中文描述： | AUDIO AMPLIFIER, PDSO8 |
| 封裝： | SOIC-8 |
| 文件頁(yè)數(shù)： | 7/12頁(yè) |
| 文件大小： | 189K |
| 代理商： | OP275GS |
OP275
REV. A
–7–
APPLICATIONS
Short Circuit Protection
The OP275 has been designed with inherent short circuit pro-
tection to ground. An internal 30
resistor, in series with the
output, limits the output current at room temperature to I
SC
+
= 40 mA and I
SC
– = –90 mA, typically, with
±
15 V supplies.
However, shorts to either supply may destroy the device when
excessive voltages or currents are applied. If it is possible for a
user to short an output to a supply, for safe operation, the out-
put current of the OP275 should be design-limited to
±
30 mA,
as shown in Figure 1.
Total Harmonic Distortion
Total Harmonic Distortion + Noise (THD + N) of the OP275
is well below 0.001% with any load down to 600
. However,
this is dependent upon the peak output swing. In Figure 2 it is
seen that the THD + Noise with 3 V rms output is below
0.001%. In the following Figure 3, THD + Noise is below
0.001% for the 10 k
and 2 k
loads but increases to above
0.1% for the 600
load condition. This is a result of the output
swing capability of the OP275. Notice the results in Figure 4,
showing THD vs. V
IN
(V rms). This figure shows that the THD
+ Noise remains very low until the output reaches 9.5 volts rms.
This performance is similar to competitive products.
R
FB
FEEDBACK
R
X
332
A1
V
OUT
A1 = 1/2 OP275
Figure 1. Recommended Output Short Circuit Protection
R
L
= 600
, 2k, 10k
V
S
=
±
15V
V
IN
= 3V rms
A
V
= +1
0.010
0.001
0.0005
20
100
1k
10k
20k
FREQUENCY – Hz
T
Figure 2. THD + Noise vs. Frequency vs. R
LOAD
1
0.001
0.0001
20
100
10k
20k
T
FREQUENCY – Hz
A
V
= +1
V
S
=
±
18V
V
= 10V rms
80kHz FILTER
600
2k
10k
0.1
0.010
Figure 3. THD + Noise vs. R
LOAD
; V
IN
=10 V rms,
±
18 V Supplies
V
S
=
±
18V
R
L
= 600
0.010
0.001
0.0001
0.5
1
10
T
OUTPUT SWING – V rms
Figure 4. Headroom, THD + Noise vs. Output Amplitude
(V rms); R
LOAD
= 600
, V
SUP
=
±
18 V
The output of the OP275 is designed to maintain low harmonic
distortion while driving 600
loads. However, driving 600
loads with very high output swings results in higher distortion if
clipping occurs. A common example of this is in attempting to
drive 10 V rms into any load with
±
15 volt supplies. Clipping
will occur and distortion will be very high.
To attain low harmonic distortion with large output swings,
supply voltages may be increased. Figure 5 shows the perfor-
mance of the OP275 driving 600
loads with supply voltages
varying from
±
18 volts to
±
20 volts. Notice that with
±
18 volt
supplies the distortion is fairly high, while with
±
20 volt supplies
it is a very low 0.0007%.
SUPPLY VOLTAGE – V
0.0001
0.001
T
0
±
17
±
22
±
18
±
19
±
20
±
21
0.01
0.1
R
L
= 600
V
OUT
= 10 Vrms @ 1kHz
Figure 5. THD + Noise vs. Supply Voltage
Noise
The voltage noise density of the OP275 is below 7 nV/
√
Hz
from
30 Hz. This enables low noise designs to have good perfor-
mance throughout the full audio range. Figure 6 shows a typical
OP275 with a 1/f corner at 2.24 Hz.
10 Hz
0 Hz
CH A: 80.0 μV FS
10.0 μV/DIV
MKR: 45.6 μV/
√
Hz
BW: 0.145 Hz
MKR: 2.24 Hz
Figure 6. 1/f Noise Corner, V
S
=
±
15 V, A
V
= 1000
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| OP275GSR | Dual Bipolar/JFET, Audio Operational Amplifier |
| OP275GBC | Dual Bipolar/JFET, Audio Operational Amplifier |
| OP279 | Rail-to-Rail High Output Current Operational Amplifier(滿幅度高輸出電流運(yùn)放) |
| OP27 | Low-Noise, Precision Operational Amplifier |
| OP27GJ | Low-Noise, Precision Operational Amplifier |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| OP275GSR | 制造商:AD 制造商全稱:Analog Devices 功能描述:Dual Bipolar/JFET, Audio Operational Amplifier |
| OP275GS-REEL | 功能描述:IC AMP AUDIO STER CLASS AB 8SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 放大器類型:通用 電路數(shù):1 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.11 V/µs 增益帶寬積:350kHz -3db帶寬:- 電流 - 輸入偏壓:4nA 電壓 - 輸入偏移:20µV 電流 - 電源:260µA 電流 - 輸出 / 通道:20mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 36 V，±1.35 V ~ 18 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SO 包裝:帶卷 (TR) |
| OP275GS-REEL7 | 功能描述:IC AMP AUDIO STER CLASS AB 8SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 放大器類型:通用 電路數(shù):1 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.11 V/µs 增益帶寬積:350kHz -3db帶寬:- 電流 - 輸入偏壓:4nA 電壓 - 輸入偏移:20µV 電流 - 電源:260µA 電流 - 輸出 / 通道:20mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 36 V，±1.35 V ~ 18 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SO 包裝:帶卷 (TR) |
| OP275GSZ | 功能描述:IC AMP AUDIO STER CLASS AB 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 產(chǎn)品培訓(xùn)模塊:Differential Circuit Design Techniques for Communication Applications 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類型:RF/IF 差分 電路數(shù):1 輸出類型:差分 轉(zhuǎn)換速率:9800 V/µs 增益帶寬積:- -3db帶寬:2.9GHz 電流 - 輸入偏壓:3µA 電壓 - 輸入偏移:- 電流 - 電源:40mA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-VQFN 裸露焊盤(pán)，CSP 供應(yīng)商設(shè)備封裝:16-LFCSP-VQ 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:551 (CN2011-ZH PDF) 其它名稱:ADL5561ACPZ-R7CT |
| OP275GSZ-REEL | 功能描述:IC AMP AUDIO STER CLASS AB 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:160 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:10 V/µs 增益帶寬積:9MHz -3db帶寬:- 電流 - 輸入偏壓:1pA 電壓 - 輸入偏移:250µV 電流 - 電源:730µA 電流 - 輸出 / 通道:28mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 5.5 V，±1.35 V ~ 2.75 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC N 包裝:管件 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。