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AN-589: Ways to Optimize the Performance of a Difference Amplifier
- AN-589 Analog Devices Application Notes (app note added
6/06)This Application Note presents several ways to build and optimize
performance of a discrete difference amplifier. It also recommends
amplifiers....
Analog-input circuit serves any microcontroller - 20-Dec-01
Issue of EDN The simple ADC in Figure 1 is perfect for getting
analog signals into a purely digital microcontroller. Using just five
surface-mount parts, you can assemble it for less than 50 cents
(1000], which is approximately half the cost of a single-chip-ADC....
[Design Idea by Steven Hageman, Agilent Technologies, Santa Rosa, CA]
Circuit performs high-speed voltage-to-current, current to current conversion -
25-Jul-02 Issue of EDN The circuit in Figure 1performs active voltage-to-current
conversion or acts as a variable-gain current mirror with high precision and bandwidth. A
typical application is testing high-speed ICs or other devices that have inputs designed
to be driven from current-steering DACs to enable a modulated voltage source to control
the devices.... [Design Idea by Ali Mehmed, Nokia UK Ltd, Southwood, UK]
High Gain Amplifier Circuit - In this project a 2-transistor amplifier is built
on the first section of the Printed Circuit Board and a touch plate is connected to it so
that the LED turns on when the plate is touched….(project added 04/09)
LED driver delivers constant luminosity - 12-Jun-03 Issue of EDN The
circuit in Figure 1 is similar in principle to that of a previous Design Idea (Reference
1] but offers improved,reproducible performance. The output current is almost constant
over an input-voltage range of 1.2 to 1.5V and is insensitive to variations of transistor
gain. Transistors Q1 and Q2 form an astable flip-flop.... [Design Idea by Israel
Schleicher, Bakersfield, CA]
Network imitates thermocouples - 8-Nov-01 Issue of EDN Thermocouples find
widespread use for temperature measurement in systems. During system design or testing,
you must observe the system's response at different temperatures. However, it's
inconvenient to heat a thermocouple every time you need to check a system's performance.
You can use the simple trick of touching the thermocouple with a hot soldering iron, but
this method provides only.... [Design Idea by By Abel Raynus, Armatron International,
Melrose, MA]
