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Amplifier Circuits: Transimpedance
Current to Voltage Converters
Last Updated on:
Thursday, May 15, 2008 09:21 AM
Tramsimpedance Amplifiers: # - A
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Amplifier -- Main Page |
| Circuits Designed by Dave
Johnson, P.E. : |
- LASER/LED LIGHT OUTPUT INTENSITY METER
This circuit uses a large 1cm X 1cm silicon PIN photo diode and a transimpedance amplifier to measure the light power output of infrared and
visible LEDs and laser diodes. It can be modified to produce almost any milliwatts to volts scale factor. It can be connected to either a
multi-meter or an oscilloscope.
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- LIGHT RECEIVER WORKS FROM 1KHz TO OVER 70MHz
This circuit uses one tiny C-MOS inverter IC to form a modulated light receiver with a very fast response. It is designed around a PIN photo
diode that is packaged for use with plastic optical fibers. It can be used as an optical fiber receiver. By using the open end of the optical
fiber it can "sniff" out any modulated light signals.
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- OPTICAL RFID TEST CIRCUIT
I designed this test the concept of using light techniques to send identification data instead of RF. A more detailed discussion on this scheme
can be found in the Imagineered new products section.
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- SINGLE IC FORMS SENSITIVE MODULATED LIGHT RECEIVER
The circuit uses a very inexpensive C-MOS IC that is connected to a small photodiode. Using a unique inductive feedback network, the circuit
provides high sensitivity under high ambient light conditions. It is a great circuit when you want to extend the range of an optical remote
control transmitter.
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- Xenon Lamp Flash Detector
This circuit has a very low standby current requirement yet has very high sensitivity toward the light flashes
from a xenon lamp. When connected to a flip/flop it can serve as an on on/off controller.
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Links to
electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:
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High Precision Current-to-Voltage Converters: Circuit Ideas for Designers - Application Notes - Advanced Linear Devices, Inc. (app note added 6/06) |
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Photo-Diode Current-To-Voltage Converters:
National Semiconductor - Application Note (app note added 6/06) |
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Transimpedance Amp Covers DC to Gigahertz Range:
07/08/99 EDN Design Ideas / (schematic / circuit added 10/06) [Note: File contains multiple circuits. Scroll to find this one.] To convert
the weak, broadband signal from a fiber-optic transmission channel into electrical form, you can use a high-impedance receiver or a
transimpedance amplifier. Either method provides the desired gain and bandwidth but removes any dc and low-frequency components of the signal,
because both methods require ac coupling. In a situation in which.... |
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Wide-Range Current-To-Frequency Converters:
National Semiconductor - Application Note (app note added 2/06) |
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Tramsimpedance Amplifiers: # - A
B - G H - Z |
