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)： 10/23頁
文件大?。?/td> 759K
代理商： OPA2376AIDGKT
www.ti.com
APPLICATION INFORMATION
OPERATING CHARACTERISTICS
The OPA376 family of amplifiers has parameters that
are fully specified from +2.2V to +5.5V. Many of the
specifications
apply
from
Parameters that can exhibit significant variance with
regard to operating voltage or temperature are
presented in the
Typical Characteristics
.
COMMON-MODE VOLTAGE RANGE
The
input
common-mode
OPA376 series extends 100mV beyond the supply
rails. The offset voltage of the amplifier is very low,
from approximately (V–) to (V+) – 1V, as shown in
Figure
23
.
The
offset
common-mode
voltage
Common-mode rejection is specified from (V–) to
(V+) – 1.3V.
GENERAL LAYOUT GUIDELINES
For best operational performance of the device, good
printed circuit board (PCB) layout practices are
required. Low-loss, 0.1
μ
F bypass capacitors must be
connected between each supply pin and ground as
close to the device as possible. A single bypass
capacitor
from
V+
to
ground
single-supply applications.
BASIC AMPLIFIER CONFIGURATIONS
The OPA376 family is unity-gain stable. It does not
exhibit output phase inversion when the input is
overdriven. A typical single-supply connection is
shown in
Figure 22
. The OPA376 is configured as a
basic inverting amplifier with a gain of –10V/V. This
single-supply connection has an output centered on
the common-mode voltage, V
CM
. For the circuit
shown, this voltage is 2.5V, but may be any value
within the common-mode input voltage range.
O
-
0.5
3
2
1
0
-
1
-
2
-
3
Common-Mode (V)
6.0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
+
V
-
V
INPUT AND ESD PROTECTION
The OPA376 family incorporate internal electrostatic
discharge (ESD) protection circuits on all pins. In the
case of input and output pins, this protection primarily
consists
of
current
steering
between the input and power-supply pins. These ESD
protection
diodes
also
overdrive protection, provided that the current is
limited to 10mA as stated in the
Absolute Maximum
Ratings
.
Figure 24
shows how a series input resistor
may be added to the driven input to limit the input
current. The added resistor contributes thermal noise
at the amplifier input and its value should be kept to a
minimum in noise-sensitive applications.
C
1
100nF
R
2
10k
W
R
1
1k
W
+5V
V
OUT
V
IN
V
= 2.5V
CM
OPA376
5k
W
OPA376
10mA max
V+
V
IN
V
OUT
I
OVERLOAD
OPA376
OPA2376
OPA4376
SBOS406B–JUNE 2007–REVISED SEPTEMBER 2007
voltage
range
of
the
–40
°
C
to
+125
°
C.
voltage
exceeds
increases
(V+)
as
–1V.
is
applicable
to
Figure 23. Offset and Common-Mode Voltage
diodes
connected
provide
in-circuit,
input
Figure 22. Basic Single-Supply Connection
Figure 24. Input Current Protection
10
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Copyright 2007, Texas Instruments Incorporated
Product Folder Link(s):
OPA376 OPA2376 OPA4376
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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(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
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(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
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(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
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(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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