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參數(shù)資料
| 型號： | THS4130EVM |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | HIGH SPEED LOW NOISE, FULLY DIFFERENTIAL I/O AMPLIFIERS |
| 中文描述： | 高速低噪音，完全不同的I / O功放 |
| 文件頁數(shù)： | 14/27頁 |
| 文件大?。?/td> | 569K |
| 代理商： | THS4130EVM |
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SLOS318E MAY 2000 REVISED JANUARY 2004
14
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
resistor matching
Resistor matching is important in fully differential amplifiers. The balance of the output on the reference voltage
depends on matched ratios of the resistor. CMRR, PSRR, and cancellation of the second harmonic distortion
will diminish if resistor mismatch occurs. Therefore, it is recommended to use 1% tolerance resistors or better
to keep the performance optimized.
V
OCM
sets the dc level of the output signals. If no voltage is applied to the V
OCM
pin, it will be set to the midrail
voltage internally defined as:
VCC
VCC
–
2
In the differential mode, the V
OCM
on the two outputs cancel each other. Therefore, the output in the differential
mode is the same as the input in the gain of 1. V
OCM
has a high bandwidth capability up to the typical operation
range of the amplifier. For the prevention of noise going through the device, use a 0.1
μ
F capacitor on the V
OCM
pin as a bypass capacitor. The following graph shows the simplified diagram of the THS413x.
_
+
x1
Output Buffer
Vcm Error
Amplifier
C
R
C
R
x1
Output Buffer
VCC+
VOUT+
VOUT
VCC+
VCC
VIN
VIN+
30 k
30 k
VCC
VOCM
Figure 29. THS413x Simplified Diagram
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| THS4130ID | 功能描述:差分放大器 Ln Diff. In/Out RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 Channel 帶寬:2.4 GHz 可用增益調(diào)整:6 dB to 26 dB 輸入補償電壓: 共模抑制比（最小值）:- 40 dB 工作電源電壓:4.75 V to 5.25 V 電源電流:100 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:WQFN-24 封裝:Reel |
| THS4130ID | 制造商:Texas Instruments 功能描述:IC AMP DIFF SMD 4130 SOIC8 |
| THS4130IDG4 | 功能描述:差分放大器 Fully Differential I/O Low Noise RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 Channel 帶寬:2.4 GHz 可用增益調(diào)整:6 dB to 26 dB 輸入補償電壓: 共模抑制比（最小值）:- 40 dB 工作電源電壓:4.75 V to 5.25 V 電源電流:100 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:WQFN-24 封裝:Reel |
| THS4130IDGK | 功能描述:差分放大器 Fully Differential I/O Low Noise RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 Channel 帶寬:2.4 GHz 可用增益調(diào)整:6 dB to 26 dB 輸入補償電壓: 共模抑制比（最小值）:- 40 dB 工作電源電壓:4.75 V to 5.25 V 電源電流:100 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:WQFN-24 封裝:Reel |
| THS4130IDGKG4 | 功能描述:差分放大器 Fully Differential I/O Low Noise RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 Channel 帶寬:2.4 GHz 可用增益調(diào)整:6 dB to 26 dB 輸入補償電壓: 共模抑制比（最小值）:- 40 dB 工作電源電壓:4.75 V to 5.25 V 電源電流:100 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:WQFN-24 封裝:Reel |
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