參數(shù)資料
型號： OPA2376AIDGKT
英文描述： Precision, Low Noise, Low Quiescent Current, Operational Amplifier
中文描述： 精密，低噪聲，低靜態(tài)電流，運算放大器
文件頁數(shù)： 12/23頁
文件大小： 759K
代理商： OPA2376AIDGKT
www.ti.com
C
1
0.1 F
m
R
100
W
1
(1)
+5V
V
IN
ADS8327
Low Power
16-Bit
500kSPS
C
3
(1)
1.2nF
C
4
100nF
+5V
REF IN
-
IN
+IN
REF5040
4.096V
+5V
OPA376
PHANTOM-POWERED MICROPHONE
+
+
+
+
+
m
+
m
100
W
R
6
100
W
1k
W
1k
W
1/2
OPA2376
1/2
OPA2376
10
m
F
10
m
F
C
2
33 F
10 F
m
10k
W
+
R
1
2.7k
W
R
9
4.7k
W
R
8
4.7k
W
33 F
m
D
1
5.1V
2
R
7
100
W
C
3
33 F
3
2
3
1
1
R
G
R
10
6.8k
W
R
11
6.8k
W
3.3k
W
3.3k
W
Phantom Power
(Provides power source for microphone)
48V
1 F
m
INA163
-
15V
+15V
Microphone
Typical microphone input circuit used in mixing consoles.
Low-level differential audio signal
is transmitted differentially on the
same cable as power to the microphone.
Panasonic
WM-034CY
OPA376
OPA2376
OPA4376
SBOS406B–JUNE 2007–REVISED SEPTEMBER 2007
NOTE: (1) Suggested value; may require adjustment based on specific application.
Figure 27. Driving an ADS8327
reduced to 5.1V by the series 6.8k
resistors on the
output side of the cable, and the 4.7k
and zener
diode on the input side of the cable. AC coupling is
used to block the different dc voltage levels from
each other on each end of the cable.
The circuit provided in
Figure 28
depicts how a
remote microphone amplifier can be powered by a
phantom source on the output side of the signal
cable. The cable serves double duty, carrying both
the differential output signal from, and dc power to
the microphone amplifier stage.
An
differential inputs and receives the balanced audio
signals from the cable. The INA163 gain may be set
from 0dB to 80dB by selecting the R
G
value. The
INA163 circuit is typical of the input circuitry used in
mixing consoles.
INA163
instrumentation
amplifier
provides
An OPA2376 serves as a single-ended input, to
differential
output
amplifier
Common-mode bias for the two op amps is provided
by the dc voltage developed across the electret
microphone element. A 48V phantom supply is
with
a
6dB
gain.
Figure 28. Phantom-Powered Electret Microphone
12
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Copyright 2007, Texas Instruments Incorporated
Product Folder Link(s):
OPA376 OPA2376 OPA4376
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相關代理商/技術參數(shù)
參數(shù)描述
OPA2376AIDGKTG4 功能描述:運算放大器 - 運放 Prec Lo Noise Lo Quies Current Op Amp 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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel
OPA2376AIDR 功能描述:運算放大器 - 運放 Precision Lo Noise Low Quies Current 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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel
OPA2376AIDRG4 功能描述:運算放大器 - 運放 Prec Lo Noise Lo Quies Current Op Amp 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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel
OPA2376AIYZDR 功能描述:運算放大器 - 運放 Prec/Low noise Op- Amp 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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel
OPA2376AIYZDT 功能描述:運算放大器 - 運放 Prec/Low noise Op- Amp 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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel
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