High Bandwidth Differential Amplifier for Shock Experiments
Abstract
We developed a high bandwidth differential amplifier for gas gun shock experiments/applications. The circuit has a bandwidth > 1 GHz, and is capable of measuring signals of ≤1.5 V with a common mode rejection of 250 V. Conductivity measurements of gas gun targets are measured by flowing high currents through the targets. The voltage is measured across the target using a technique similar to a four-point probe. Because of the design of the current source and load, the target voltage is approximately 250 V relative to ground. Since the expected voltage change in the target is < 1 V, the differential amplifier must have a large common mode rejection. High pass filters suppress internal ringing of operational amplifiers. Results of bench tests are shown.
- Authors:
- Publication Date:
- Research Org.:
- Nevada Test Site (NTS), Mercury, NV (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1057096
- Report Number(s):
- DOE/NV/25946-1504
- DOE Contract Number:
- DE-AC52-06NA25946
- Resource Type:
- Conference
- Resource Relation:
- Conference: 19th Topical Conference: High-Temperature Plasma Diagnostics
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; shock experiments, differential amplifier
Citation Formats
Ross, P. W., Tran, V., Chau, R. High Bandwidth Differential Amplifier for Shock Experiments. United States: N. p., 2012.
Web.
Ross, P. W., Tran, V., Chau, R. High Bandwidth Differential Amplifier for Shock Experiments. United States.
Ross, P. W., Tran, V., Chau, R. 2012.
"High Bandwidth Differential Amplifier for Shock Experiments". United States. https://www.osti.gov/servlets/purl/1057096.
@article{osti_1057096,
title = {High Bandwidth Differential Amplifier for Shock Experiments},
author = {Ross, P. W., Tran, V., Chau, R.},
abstractNote = {We developed a high bandwidth differential amplifier for gas gun shock experiments/applications. The circuit has a bandwidth > 1 GHz, and is capable of measuring signals of ≤1.5 V with a common mode rejection of 250 V. Conductivity measurements of gas gun targets are measured by flowing high currents through the targets. The voltage is measured across the target using a technique similar to a four-point probe. Because of the design of the current source and load, the target voltage is approximately 250 V relative to ground. Since the expected voltage change in the target is < 1 V, the differential amplifier must have a large common mode rejection. High pass filters suppress internal ringing of operational amplifiers. Results of bench tests are shown.},
doi = {},
url = {https://www.osti.gov/biblio/1057096},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Apr 30 00:00:00 EDT 2012},
month = {Mon Apr 30 00:00:00 EDT 2012}
}