參數(shù)資料
型號： THS4120EVM
廠商： Texas Instruments, Inc.
英文描述： THS4120 Evalutation Module(THS4120評估板)
中文描述： THS4120 Evalutation模塊（THS4120評估板）
文件頁數(shù)： 23/28頁
文件大?。?/td> 278K
代理商： THS4120EVM
2-5
Using the THS4120 EVM
2.5
Power Down Verification
This EVM is used to evaluate devices with or without the shutdown function.
Therefore, this step is only applicable if the device has a shutdown function.
Please see the data sheet for power-down verification.
1)
Insert the jumper JU1 to power down the device. The current consumption
(dc current meters) should drop to less than 1 mA. Remember to discount
the current flow through the 10-k
pullup resistor on the EVM when calcu-
lating the device current consumption in the shutdown mode.
2)
Turn off the power supply and disconnect the wiring.
3)
Turn off the function generator and disconnect the wiring.
4)
Basic operation of the operational amplifier and its EVM is complete.
2.6
Measuring the Frequency Response
This EVM is designed to easily interface with network analyzers. Jumpers J3
and J4 facilitate the use and insertion of the differential probes at the input and
output nodes. It is important to consider the following steps to ensure optimal
performance in terms of bandwidth, phase margin, gain, and peaking
1)
Connect the power supply according to the power supply set up (section
2.2)
2)
Use proper load values. Loads directly effect the performance of the
differential operational amplifier (the suggested value is 800
differentially, 400
on each output node).
Caution:
Incorrect connections cause excessive current flow and may damage
the device.
3)
Place the GND connection of the probe as close as possible to the output
nodes. Use the GND holes on the EVM. The GND holes create a shorter
route to the GND plane and output nodes.
4)
Place the probe at the input nodes, set the power level of the network
analyzer to the proper level (information in the data sheet typically is
produced at
–
20 dBm
power level), and calibrate the network analyzer.
Note:
If a differential probe is used, verify that resistors R1a, R1b, R4b, and R4a
are in place. The 0-
resistors provide the path to the differential probe termi-
nals.
5)
Place the probe at the output nodes (if a differential probe is used, insert
the probe into the provided jumper), and measure the frequency
response.
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THS4120ID 功能描述:特殊用途放大器 Fully Differential CMOS RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel
THS4120IDG4 功能描述:特殊用途放大器 Fully Differential CMOS RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel
THS4120IDGK 功能描述:特殊用途放大器 Fully Differential CMOS RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel
THS4120IDGKG4 功能描述:特殊用途放大器 Fully Differential CMOS RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel
THS4120IDGKR 功能描述:特殊用途放大器 Fully Differential CMOS RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel
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