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參數(shù)資料
| 型號(hào)： | OPA843IDR |
| 元件分類： | 運(yùn)算放大器 |
| 英文描述： | Wideband, Low Distortion, Medium Gain, Voltage-Feedback OPERATIONAL AMPLIFIER |
| 中文描述： | 寬帶，低失真，中等增益，電壓反饋運(yùn)算放大器 |
| 文件頁數(shù)： | 19/22頁 |
| 文件大小： | 377K |
| 代理商： | OPA843IDR |
OPA843
SBOS268A
19
www.ti.com
INPUT AND ESD PROTECTION
The OPA843 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 protec-
tion diodes to the power supplies, as shown in Figure 16.
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 (e.g., in systems with
±
15V supply parts
driving into the OPA843), 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 17 shows
one example of an overdrive protection circuit added to a
G = +5V/V design.
External
Pin
Internal
Cicuitry
+V
CC
–
V
CC
OPA843
+5V
–
5V
50
50
Power-supply
decoupling not shown.
125
D1
D2
R
G
126
50
R
F
505
V
O
D1 = D2 IN5911 (or equivalent)
50
Source
FIGURE 17. Gain of +5 with Input Protection.
FIGURE 16. Internal ESD Protection.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| OPA843IDRG4 | 功能描述:高速運(yùn)算放大器 Wideband Lo-Distort Med Gain Vltg Feedbk 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 |
| OPA846 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Wideband, Low-Noise, Voltage-Feedback OPERATIONAL AMPLIFIER |
| OPA846ID | 功能描述:高速運(yùn)算放大器 Wideband Low Noise Voltage 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 |
| OPA846ID | 制造商:Texas Instruments 功能描述:OP AMP WIDEBAND VFB SOIC8 846 |
| OPA846IDBVR | 功能描述:高速運(yùn)算放大器 Wideband Low Noise Voltage 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 |
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