Amplifying the voltage drop across a manganin shunt is a common technique for current sensing. Micro Oscillator, Inc.’s family of sMart shunts provides a simplified alternative. The high-side precision current sense amplifier circuit has a built-in sense resistor. The patent pending product family provides a high-precision voltage or 20 mA current loop output while maintaining […]
Signal Conditioning
In-Line Amplifier Targets Strain Gauges
If you work with strain gauges, you usually have to amplify the output to achieve a useable signal for the rest of the system. FUTEK’s recently improved its CSG110 Strain Gauge Amplifier to simplify the process and improve the matching requirements of the amplifier to the application for full-bridge strain-gauge sensors with a mV/V output. […]
Low-Power, High-Accuracy Instrumentation Amplifier with On-Chip Calibration
Surprisingly, with all of the system technology that Microchip Technology offers, it never had an instrumentation amplifier. With the introduction of the MCP6N11 instrumentation amplifier, that has changed. The design uses Microchip’s mCal technology, an on-chip calibration circuit that enables low initial offset voltage and a means to control offset drift. This results in higher […]
Strain Gauge Amplifier Offers Improved Performance
Completely overhauling an application-proven part can provide a lot of new system advantages, especially if the original design was ten years old. That’s the story for FUTEK’s CSG110 Strain Gauge Signal Amplifier. The newest version is now CE approved to the highest criteria, making it compliant for all medical, industrial and consumer applications. Additional design […]
Hi-Res Signal Conditioning IC Targets Piezoresistive MEMS Sensors
Anyone who follows Sensor Tips knows that I am always interested in signal conditioning ICs for sensors. When this involves a company that I have not known about, it gets even more interesting. This week’s pleasant surprise comes from Micro Analog Systems Oy from Finland. The MAS6502 is a 16-bit piezoresistive sensor signal interface IC […]
Innovative Sensing Interface Circuits for Harsh Environments
The latest interface circuit technology from Micro Oscillator, Inc. includes three GaAs sensor versions that accept differing sensing inputs. One addresses capacitive inputs for touch, proximity, & humidity. The second handles inductive inputs for proximity, & metal detection. The third addresses resistive inputs for pressure, temperature, humidity, and strain gage applications. A different technology implementation of the […]
Increase Sensor Performance with 14-Bit Capacitive Sensor Conditioning IC
Designed for low-power operation, ZMDI’s ZSSC3123 complements the small size and lower power consumption capabilities of capacitive sensors. The chip delivers 14-bit resolution and 0.25 % accuracy over a wide range of sensor capacitances and temperatures. Operating power consumption is 60 µA with a sleep mode to lower to less than 1µA. The IC has […]
Sensor Analog Front-Ends Simplify System Design
National’s LMP900xx sensor Analog Front-Ends (AFE integrated circuits (ICs) target precision sensing systems used to monitor and control temperature, pressure, load, force, motion/position and voltage inindustrial, medical, and test and measurement applications. For example, the conversion (ADC) and op amps for pressure sensors and op amps and current sources for RTDs. The LMP900xx family features […]
Sensor Signal Conditioner IC Addresses Resistive Bridge Circuits
If you have found the right pressure sensor for your application but it needs addition signal conditioning, the ZMDI ZSSC3008 may solve your problem. The first requirement is a pressure sensor with an intrinsically low temperature coefficient (TC). If that’s the case, the rest of the IC’s features come into play. These features include offset […]
