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參數(shù)資料
| 型號： | OPA337_OPA338 |
| 英文描述： | Microsize. single-supply cmos operational amplifiers microamplifier series-Opa337. opa2337. opa338. opa2338 |
| 中文描述： | Microsize。單電源CMOS運算放大器microamplifier系列Opa337。 opa2337。 opa338。 opa2338 |
| 文件頁數(shù)： | 11/17頁 |
| 文件大?。?/td> | 329K |
| 代理商： | OPA337_OPA338 |
OPA355, 2355, 3355
SBOS195C
11
www.ti.com
The Enable input can be modeled as a CMOS input gate with
a 100k
pull-up resistor to V+. Left open, the Enable pin will
assume a logic HIGH, and the amplifier will be on.
The Enable time is 100ns and the disable time is only 30ns.
This allows the OPA355 to be operated as a
“
gated
”
amplifier,
or to have its output multiplexed onto a common output bus.
When disabled, the output assumes a high-impedance state.
OUTPUT DRIVE
The output stage can supply high short-circuit current (typi-
cally over 200mA). Therefore, an on-chip thermal shutdown
circuit is provided to protect the OPA355 from dangerously
high junction temperatures. At 160
°
C, the protection circuit
will shut down the amplifier. Normal operation will resume
when the junction temperature cools to below 140
°
C.
NOTE: it is not recommended to run a continuous DC current
in excess of
±
60mA. Refer to the Typical Characteristics
“
Output Voltage Swing vs Output Current.
”
VIDEO
The OPA355 output stage is capable of driving a standard
back-terminated 75
video cable. By back-terminating a
transmission line, it does not exhibit a capacitive load to its
driver. A properly back-terminated 75
cable does not ap-
pear as capacitance; it presents only a 150
resistive load to
the OPA355 output.
The OPA355
’
s rail-to-rail input and output capabilities make
possible its use as an amplifier for RGB graphic signals,
which have a voltage of zero at the video black level, as
shown in Figure 1.
WIDEBAND VIDEO MULTIPLEXING
One common application for video speed amplifiers which
include an enable pin is to wire multiple amplifier outputs
together, then select which one of several possible video
inputs to source onto a single line. This simple
“
Wired-OR
Video Multiplexer
”
can be easily implemented using the
OPA357, see Figure 2.
INPUT AND ESD PROTECTION
All OPA355 pins are static protected with internal ESD
protection diodes tied to the supplies, see Figure 3.
These diodes will provide overdrive protection if the current
is externally limited to 10mA by the source or by a resistor.
FIGURE 1. RGB Cable Driver.
1/3
OPA3355
604
1
μ
F
75
10nF
+3V
75
Red
Green
Blue
604
Red
D/A
Converter
Green
D/A
Converter
Blue
D/A
Converter
75
604
75
75
1/3
OPA3355
1/3
OPA3355
604
75
604
75
604
75
75
+
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| OPA336UA | B140 DIODES INC, SMA |
| OPA2336 | SINGLE-SUPPLY, MicroPOWER CMOS OPERATIONAL AMPLIFIERS MicroAmplifier ⑩ Series |
| OPA2336P | SINGLE-SUPPLY, MicroPOWER CMOS OPERATIONAL AMPLIFIERS MicroAmplifier ⑩ Series |
| OPA2336PA | SINGLE-SUPPLY, MicroPOWER CMOS OPERATIONAL AMPLIFIERS MicroAmplifier ⑩ Series |
| OPA2336U | SINGLE-SUPPLY, MicroPOWER CMOS OPERATIONAL AMPLIFIERS MicroAmplifier ⑩ Series |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| OPA337PA | 功能描述:運算放大器 - 運放 Singly Sup CMOS 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(fēng)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 |
| OPA337PAG4 | 功能描述:運算放大器 - 運放 MicroSIZE Sngl-Sply CMOS 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(fēng)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 |
| OPA337UA | 功能描述:運算放大器 - 運放 Singly Sup CMOS 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(fēng)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 |
| OPA337UA | 制造商:Texas Instruments 功能描述:OP AMP CMOS RRO/P SMD SOIC8 337 |
| OPA337UA/2K5 | 功能描述:運算放大器 - 運放 Singly Sup CMOS 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(fēng)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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