The THS4140EVM is a good example of PCB design and layout for high-speed operational amplifier applications. It is a complete circuit for the high-speed operational amplifier. The EVM is made of the THS4140 high-speed operational amplifier, a number of passive components, and various features and footprints that enable the user to experiment, test, and verify various operational amplifier circuit implementations. The board measures 4.5 inches in length by 2.5 inches in width. Initially, this board is populated for a single-ended input amplifier. The outputs (Vo+ and Vo-) can be tested differentially or single ended. Gain is set to one and can be changed by changing the ratios of the feedback and gain resistors (see the device datasheet for recommended resistor values). The user may populate various footprints on the evaluation module board to verify filter designs or perform other experiments. Each input is terminated with a 50 ohm resistor to provide correct line-impedance matching.
THS4140 high-speed operational amplifier EVM features include:
| Type | Title | Date | ||
|---|---|---|---|---|
| * | EVM User's guide | THS4140 EVM User's Guide for High-Speed Fully Differential Amplifier | 02 Feb 2001 | |
| Certificate | THS4140EVM EU Declaration of Conformity (DoC) | 02 Jan 2019 | ||
| Data sheet | High-Speed Fully Differential I/O Amplifiers datasheet (Rev. F) | 31 Jan 2006 |
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