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參數(shù)資料
| 型號： | OPA820IDBVT |
| 英文描述： | Unity-Gain Stable, Low-Noise, Voltage-Feedback Operational Amplifier |
| 中文描述： | 單位增益穩(wěn)定，低噪聲，電壓反饋運(yùn)算放大器 |
| 文件頁數(shù)： | 22/25頁 |
| 文件大小： | 427K |
| 代理商： | OPA820IDBVT |
"#$
SBOS303A JUNE 2004 REVISED JULY 2004
www.ti.com
22
INPUT AND ESD PROTECTION
The OPA820 is built using a very high-speed complementary
bipolar process. The internal junction breakdown voltages are
relatively low for these very small geometry devices. These
breakdowns are reflected in the Absolute Maximum Ratings
table. All device pins are protected with internal ESD
protection diodes to the power supplies, as shown in
Figure 13.
External
Pin
+V
CC
V
CC
Figure 13. Internal ESD Protection
These diodes provide moderate protection to input overdrive
voltages above the supplies as well. The protection diodes
can typically support 30mA continuous current. Where higher
currents are possible (for example, in systems with
±
15V
supply parts driving into the OPA820), current-limiting series
resistors should be added into the two inputs. Keep these
resistor values as low as possible since high values degrade
both noise performance and frequency response. Figure 14
shows an example protection circuit for I/O voltages that may
exceed the supplies.
OPA820
+5V
5V
50
50
Powersupply
decoupling not shown.
174
D1
D2
V
1
R
G
301
50
R
F
301
V
O
D1 = D2 IN5911 (or equivalent)
50
Source
Figure 14. Gain of +2 with Input Protection
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| OPA820IDBVTG4 | 功能描述:高速運(yùn)算放大器 Unity Gain Stable Lo Noise Vltg Feedback RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| OPA820IDG4 | 功能描述:高速運(yùn)算放大器 Unity Gain Stable Lo Noise Vltg Feedback RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| OPA820IDR | 功能描述:高速運(yùn)算放大器 Unity Gain Stable Lo Noise Vltg Feedback RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| OPA820IDRG4 | 功能描述:高速運(yùn)算放大器 Unity Gain Stable Lo Noise Vltg Feedback RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| OPA820SKD3 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:UNITY-GAIN STABLE, LOW-NOISE, VOLTAGE-FEEDBACK OPERATIONAL AMPLIFIER |
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