Sensors & Electronics
Electronics & Systems
Low-Noise Electronics for IR Sensors (144)
Low- and High-Frequency Preamplifiers
Prototype Current DriverProblem: Provide low-noise electronics to allow development of state-of-the-art infrared-based sensors
Project Activity Scope (from Technical Overview Chart): Interaction Mechanisms through Controls & Measurements
PNNL Solution:
- Specified operational requirements
- Evaluated commercial options
- Developed very low-noise current drivers and signal preamplifiers
- Demonstrated operation with quantum cascade lasers and several infrared sensing modalities
- Implemented as small PC boards for laboratory and field use
Capabilities Employed to Meet Client Needs: Analog circuit design with an emphasis on low-noise performance; printed circuit board layout design for surface mount components for low-noise performance and compact size; packaging for noise isolation and ease of assembly; noise spectral analysis; laboratory demonstration of superior performance compared to respected commercial options. Current driver specifics: relatively high compliance voltage and current levels for semiconductor laser applications; complementary designs for positive and negative polarity drivers; designs for manual and computer-controlled operation.
Selected Links to Related Information:
- Related Examples (Same Project)
Contact: Tim Stewart
