High-Performance Charge Amplifiers

Designed for use with charge accelerometers and pressure sensors

IMI's range of charge amplifiers is specifically designed to enhance the performance of charge mode accelerometers and pressure sensors. These devices convert high impedance signal outputs into low impedance signal outputs, ensuring clear and precise measurements even in extreme conditions, including temperatures up to +500 °F. This capability is critical as it allows charge amplifiers to operate efficiently with high-temperature charge-mode sensors that exhibit lower insulation resistance values.

Single-ended vs. differential charge amplifiers

Single ended charge amplifiers are ideal for setups using single-ended sensors with coaxial cables, where the pin or cable conductor carries the signal and the connector shell or cable shield serves as the ground. This is particularly suited for environments where simplicity and cost-effectiveness are priorities.

Differential charge amplifiers are designed for more demanding applications, where charge amplifiers accept simultaneous positive and negative signals. These signals are equal in amplitude but opposite in phase, allowing common-mode noise to affect both signals equally, thereby enhancing the signal integrity even in noisy environments.

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