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參數資料
型號: THS4601CDDARG3
廠商: TEXAS INSTRUMENTS INC
元件分類: 音頻/視頻放大
英文描述: 1 CHANNEL, VIDEO AMPLIFIER, PDSO8
封裝: GREEN, PLASTIC, SOP-8
文件頁數: 10/33頁
文件大?。?/td> 886K
代理商: THS4601CDDARG3
THS4601
SLOS388B OCTOBER 2001 REVISED JUNE 2002
18
www.ti.com
APPLICATION INFORMATION
alternative transimpedance configurations (continued)
The third configuration uses a capacitive T-network to achieve fine control of the compensation capacitance.
The capacitor CF3 can be used to tune the total effective feedback capacitance to a very fine degree. This circuit
behaves the same as the basic transimpedance configuration, with the effective CF given by equation 4.
1
C
FEQ
+ 1
C
F1
1
)
C
F3
C
F2
_
+
CF2
RL
RF
VBias
CF1
CF3
NOTE: A capacitive T-network enables fine control of the effective
feedback capacitance using relatively large capacitor values.
λ
Figure 35. Alternative Transimpedance Configuration #3
summary of key decisions in transimpedance design
The following is a quick, simplified process for basic transimpedance circuit design. This process gives a quick
start to the design process, though it does ignore some aspects that may be critical to the circuit.
Step 1:
Determine the capacitance of the source.
Step 2:
Calculate the total source capacitance, including the amplifier input capacitance, CICM and CIDIFF.
Step 3:
Determine the magnitude of the possible current output from the source, including the minimum
signal current anticipated and maximum signal current anticipated.
Step 4:
Choose a feedback resistor value such that the input current levels create the desired output signal
voltages, and ensure that the output voltages can accommodate the dynamic range of the input
signal.
Step 5:
Calculate the optimum feedback capacitance using equation 1.
Step 6:
Calculate the bandwidth given the resulting component values.
Step 7:
Evaluate the circuit to see if all design goals are satisfied.
(4)
相關PDF資料
PDF描述
THS4601IDRG4 1 CHANNEL, VIDEO AMPLIFIER, PDSO8
THS5641AIDW PARALLEL, 8 BITS INPUT LOADING, 0.035 us SETTLING TIME, 8-BIT DAC, PDSO28
THS5641AIPW PARALLEL, 8 BITS INPUT LOADING, 0.035 us SETTLING TIME, 8-BIT DAC, PDSO28
THS5641AIPWG4 PARALLEL, 8 BITS INPUT LOADING, 0.035 us SETTLING TIME, 8-BIT DAC, PDSO28
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相關代理商/技術參數
參數描述
THS4601CDG4 功能描述:高速運算放大器 Wideband FET-Input Op Amp RoHS:否 制造商:Texas Instruments 通道數量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉換速度: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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
THS4601EVM 功能描述:放大器 IC 開發工具 THS4601 Eval Mod RoHS:否 制造商:International Rectifier 產品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V
THS4601ID 功能描述:高速運算放大器 Wideband FET-Input Op Amp RoHS:否 制造商:Texas Instruments 通道數量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉換速度: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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
THS4601IDDA 功能描述:高速運算放大器 Wideband FET In RoHS:否 制造商:Texas Instruments 通道數量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉換速度: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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
THS4601IDDAG3 功能描述:高速運算放大器 Wideband FET-Input Op Amp RoHS:否 制造商:Texas Instruments 通道數量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉換速度: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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
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