File size: 280.42 KB
File type: pdf
Last download on: Sat Feb 18, 2017 12:39:53 AM
Single Supply versus Dual Supply, When op amps are powered from dual supplies (see Figure 4–1), the supplies are normally equal in magnitude, opposing in polarity, and the center tap of the supplies is connected to ground. Any input sources connected to ground are automatically referenced to the center of the supply voltage, so the output voltage is automatically referenced to ground.
Single-supply op amp design is more complicated than split-supply op amp design, but with a logical design approach excellent results are achieved. Single-supply design used to be considered technically limiting because older op amps had limited capability. The new op amps, such as the TLC247X, TLC07X, and TLC08X have excellent single-supply parameters; thus when used in the correct applications these op amps yield rail-to-rail performance equal to their split-supply counterparts.
Single-supply op amp design usually involves some form of biasing, and this requires more thought, so single-supply op amp design needs discipline and a procedure. The recommended design procedure for single-supply op amp design is:
- Substitute the specification data into simultaneous equations to obtain m and b (the slope and intercept of a straight line).
- Let m and b determine the form of the circuit.
- Choose the circuit configuration that fits the form.
- Using the circuit equations for the circuit configuration selected, calculate the resistor values.
- Build the circuit, take data, and verify performance.
- Test the circuit for nonstandard operating conditions (circuit power off while interface power is on, over/under range inputs, etc.)
- Add protection components as required.
When this procedure is followed, good results follow. As single-supply circuit designers expand their horizon, new challenges require new solutions. Remember, the only equation a linear op amp can produce is the equation of a straight line. That equation only has four forms. The new challenges may consist of multiple inputs, common-mode voltage rejection, or something different, but this method can be expanded to meet these challenges.
Bookmark or share this info on Google+ and leave comment at below :
Someone reported the link was broken, but we have fixed it ! Click download below
People who downloaded this also viewed in this sites:
Lessons In Electric Circuits, Volume VI – Experiments. By Tony R. Kuphaldt. First Edition, last update January 18, 2010 ...
Audio and. Hi-Fi Handbook. Third Edition. Editor. IAN R. SINCLAIR. OXFORD BOSTON JOHANNESBURG MELBOURNE NEW DELHI SINGAPORE ...
Lessons In Electric Circuits, Volume III –. Semiconductors. By Tony R. Kuphaldt. Fifth Edition, last update April 05, 2009...
Leave comment :
"Single-Supply Op Amp Design Techniques"
Related Free Files
The OP AMP... - Download: 409 times
BASIC ELECTRONICS... - Download: 294 times
POWER ELECTRONICS THE HANDBOOK... - Download: 647 times
TECHNOLOGY PLC CONCEPTS BASIC ELECTRONICS... - Download: 876 times
Lessons In Electric Circuits, Volume II AC... - Download: 1766 times
Best Basic Electronics... - Download: 261 times
Lessons In Electric Circuits, Volume V... - Download: 518 times
Engineering Electronics... - Download: 486 times
Fundamentals of Engineering Electronics... - Download: 613 times
Lessons In Electric Circuits, Volume III... - Download: 1022 times