Now I am designing a 16-bits A to D PCI-E card, I plan to use ADA4817 (1st stage), ADA4938 (2nd stage, ADC driver), AD9650 (ADC, 16 bits, 80M).
For powering OP, I need +/- 5V.
Before I did it with linear regulation, then I notice ADI application note…
如果对于开关电源的外围元器件的选择感兴趣的话，您可以参考一下某些产品的数据手册，里面会给出关键元器件计算的公式，当然也包括了输出纹波和输出电容，电感和开关频率等的关系。如您可以参考一下ADP2114中第27～28页的部分。
轻载时，纹波比较大，是由于开关器件的工作模式从CCM变成了DCM。
Some of the legacy products (ADP182x family) use the voltage mode control. Few variants of Current mode control architecture are predominantly used in all the recently released controllers and regulators from ADI. These variants are:
Peak current mode…
| LTM8045 |
| LTM8049 |
| LTM4651 |
| LTM4661 |
| LTM4686 |
| LTM4676 |
| LTM4686-1 |
| LTM4676A |
| LTM4675 |
| LTM4677 |
| LTM4678 |
| LTM8062 |
| LTM8061 |
| LTM8052 |
| LTM8026 |
| LTM8056 |
| LTM8064 |
| LTM8054 |
| LTM8055 |
| LTM4600 |
| LTM4600HV |
| LTM4608A |
| LTM4604A |
| LTM8032 |
Hi Maurizio,
I have simulated and tested the filter circuit and yes it works better.
The resistance helps to damp the over shoot in the transition region of the filter, I wonder can't we use a moderate ESR electrolyte that may serve both the purposes…
这篇文章版主在微信上看过N次媒体转发分享，大家有没有也被他刷过屏？
确实是图文并茂的好文章，版主必须在论坛分享下。
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Hello,
I am working on the RF receiving coil of MRI scanner, and a magnetic compatible low noise amplifier is required to work as pre-amplifier inside the magnetic body. The magnetic field could be 1.5T or maybe up to 7T. I noticed that ADI has a document…
The most sensitve supply if CVDD18. On our latest eval board we use the ADP2114 synchronous step-down, switching regulator and derive all supplies from this regulator with separate routing and decoupling. We do not have power supply ripple rejection specs…
