7 GHZ ADC driver for AC DC coupled applications arising from the performance and performance
TI fully differential amplifier can improve radar, measurement testing equipment as well as the performance of wireless base stations and performance
On November 24, 2014, Beijing
Recently, Texas instruments (TI) announced two all-new fully differential amplifier (FDA), can be provide industry best AC DC coupling application enhance the system performance. Compared with existing ADC driver, the FDA can provide higher bandwidth LMH3401 and LMH5401, pressure rate and lower distortion. LMH3401 and LMH5401 can support radar system, not only help protect the security of the residents, but also support wireless base stations, can help reduce the call drop, at the same time also can provide a faster upload speed. If you would like to know more details about LMH3401 and LMH5401, please visit: www.ti.com.cn/lmh3401-pr-cn.
LMH3401 can reduce 30% of the size and power consumption under the premise of providing better than similar to the FDA's performance, 16 db gain. At the same time it can also provide 7 under 16 db gain GHZ - 3 db bandwidth, place rate of up to 18000 V/us pressure, as well as the 500 MHZ - 77 DBC low harmonic distortion.
LMH5401 can be configured to 6 db gain or higher, which can provide the 6.2 GHz under 12 db gain - 3 db bandwidth. It provides industry-leading performance, support 17500 V/under us pressure pendulum rate, 200 MHZ - 90 DBC harmonic distortion and 200 MHZ - 90 DBC IMD3.
LMH3401 and LMH5401 main advantages:
Under low power consumption, provide industry best bandwidth and rate of pressure swing: not only help system designers tracking radar pulse type system such as the quick edge rate, but also for the wireless base station for RF waveform environments such as zoom in high frequency, and maintain a low power consumption;
, a high signal quality: helps system under the condition of the large blockers can still receive the signal;
Without a balanced converter: signal can be converted into difference from the single end, converter without balance. It can reduce the overall bill of materials, to achieve greater bandwidth, decrease the size of the system, and simplify the design. If you would like to further understand about LMH3401 and LMH5401 relative to the imbalance of the converter advantages, please read this blog post.
Complementary devices to maximize performance of the system
LMH3401 and LMH5401 can minimize the data in the sending and receiving applications converter distortion, can be true DC into above 1 GHZ. It can help system designers to optimize TI all kinds of the high speed data converter performance, such as 12 4 GSPS ADC12J4000, 16 370 installed base ADC16DX370 and 16-bit 2.5 GSPS DAC38J84, etc.
TI low pressure drop stabilizer (they) provide the noise of the positive and negative power rail, helps to maximize LMH3401 and LMH5401 performance. LP5907 provide low noise, high power supply rejection ratio, low static current and fast line and load transient response, helps LMH3401 meet the demand of current RF and analog circuit. TPS7A3001 "upstream ripple attenuation, the dual power supply can generate clean the negative rail.
To accelerate the design tools and support
LMH3401 and LMH5401 assessment board has now begun to provide. In addition, TINA - TI SPICE model and the reference design can also be quick simulation system performance.
Texas instruments online support community send amplifier BBS can provide powerful technical support for engineers, where they can interact with fellow engineers and TI experts, to search for solutions, get help, Shared knowledge, and help to solve technical problems.
The supply position and encapsulation
LMH3401 and LMH5401 has now begun supply, adopting the 14 pins, 2.5 mm x 2.5 mm QFN packages.
Through the following link to know more details about TI high speed amplifier product series:
• view LMH3401 or LMH5401 product manuals;
, know how to reduce the common mode noise on the influence of the difference signal path;
Read, understand how to use "reduce high-speed power problem;
, about how to manage the filter loss of skills in communication system.