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參數資料
| 型號： | TLC277MP |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | LinCMOSE PRECISION DUAL OPERATIONAL AMPLIFIERS |
| 中文描述： | LinCMOSE精密雙運算放大器 |
| 文件頁數： | 29/36頁 |
| 文件大?。?/td> | 588K |
| 代理商： | TLC277MP |
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TLC272, TLC272A, TLC272B, TLC272Y, TLC277
LinCMOS
PRECISION DUAL OPERATIONAL AMPLIFIERS
SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994
29
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
single-supply operation
While the TLC272 and TLC277 perform well using dual power supplies (also called balanced or split supplies),
the design is optimized for single-supply operation. This design includes an input common-mode voltage range
that encompasses ground as well as an output voltage range that pulls down to ground. The supply voltage
range extends down to 3 V (C-suffix types), thus allowing operation with supply levels commonly available for
TTL and HCMOS; however, for maximum dynamic range, 16-V single-supply operation is recommended.
Many single-supply applications require that a voltage be applied to one input to establish a reference level that
is above ground. A resistive voltage divider is usually sufficient to establish this reference level (see Figure 38).
The low input bias current of the TLC272 and TLC277 permits the use of very large resistive values to implement
the voltage divider, thus minimizing power consumption.
The TLC272 and TLC277 work well in conjunction with digital logic; however, when powering both linear devices
and digital logic from the same power supply, the following precautions are recommended:
1.
Power the linear devices from separate bypassed supply lines (see Figure 39); otherwise, the linear
device supply rails can fluctuate due to voltage drops caused by high switching currents in the digital
logic.
2.
Use proper bypass techniques to reduce the probability of noise-induced errors. Single capacitive
decoupling is often adequate; however, high-frequency applications may require RC decoupling.
–
+
C
0.01
μ
F
R3
VREF
VI
R1
R2
VDD
VO
R4
VREF
VDD
R3
R1
R3
VO
(VREF
VI)R2
VREF
Figure 38. Inverting Amplifier With Voltage Reference
(b) SEPARATE BYPASSED SUPPLY RAILS (preferred)
(a) COMMON SUPPLY RAILS
–
+
–
+
Logic
Logic
Logic
Power
Supply
Supply
Power
Logic
Logic
Logic
OUT
OUT
Figure 39. Common vs Separate Supply Rails
相關PDF資料 |
PDF描述 |
|---|---|
| TLC272MD | LinCMOSE PRECISION DUAL OPERATIONAL AMPLIFIERS |
| TLC272MFK | LinCMOSE PRECISION DUAL OPERATIONAL AMPLIFIERS |
| TLC272MP | LinCMOSE PRECISION DUAL OPERATIONAL AMPLIFIERS |
| TLC272Y | LinCMOSE PRECISION DUAL OPERATIONAL AMPLIFIERS |
| TLC27M | LinCMOSE PRECISION DUAL OPERATIONAL AMPLIFIERS |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TLC279CD | 功能描述:運算放大器 - 運放 LiNCMOS High Bias RoHS:否 制造商:STMicroelectronics 通道數量: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 |
| TLC279CDB | 制造商:Texas Instruments 功能描述:OP Amp Quad GP 16V 14-Pin SSOP |
| TLC279CDBR | 功能描述:運算放大器 - 運放 Quad Precision Single Supply RoHS:否 制造商:STMicroelectronics 通道數量: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 |
| TLC279CDBRG4 | 功能描述:運算放大器 - 運放 Quad Precision Single Supply RoHS:否 制造商:STMicroelectronics 通道數量: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 |
| TLC279CDG4 | 功能描述:運算放大器 - 運放 Quad Precision Single Supply RoHS:否 制造商:STMicroelectronics 通道數量: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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