Mxtronics Signal Conditioning

Mxtronics offers comprehensive signal conditioning solutions: Precision operational amplifiers with low offset (<100μV) for sensor interfaces, High-speed op-amps (>10MHz) for fast signal processing, Comparators for threshold detection and zero-crossing, Isolation amplifiers for high-voltage safety and noise isolation. All products feature extended temperature ranges (-55°C to +125°C) with radiation tolerance options. The MXA series covers general-purpose to precision applications, MXC series focuses on comparators, and MXI series provides galvanic isolation.

Choose precision op-amps for sensor interfaces. Choose high-speed for fast signals. Choose isolation amps for safety-critical applications.

For precision applications, prioritize these parameters: 1) Offset voltage - lower is better for DC accuracy. Mxtronics MXA211 offers 50μV max offset. 2) Offset drift - critical for temperature stability. Look for <1μV/°C. 3) Input bias current - important for high-impedance sources. 4) Open-loop gain - higher gain improves accuracy in closed-loop circuits. 5) CMRR and PSRR - high values reject common-mode and power supply noise. For aerospace applications, also consider radiation-induced offset shift. Mxtronics provides radiation test data showing offset change vs TID.

Focus on offset voltage and drift for precision. Check radiation-induced offset for space applications.

Isolation amplifiers provide galvanic isolation between input and output circuits, offering several advantages: 1) Safety - protects low-voltage control circuits from high-voltage power circuits. 2) Noise rejection - breaks ground loops and rejects common-mode interference. 3) Signal integrity - preserves signal accuracy across isolation barrier. Mxtronics MXI series offers 5kVrms isolation with 0.05% linearity. Common applications include motor drives, power supplies, medical equipment, and industrial sensors. Isolation amplifiers are essential when measuring signals in high-voltage environments or when ground potentials differ between circuits.

Use isolation amplifiers for high-voltage safety, ground loop elimination, or when measuring across potential differences.

Radiation affects op-amps through several mechanisms: 1) Total Ionizing Dose (TID) - causes offset voltage shift and increased bias current. Mxtronics rad-tolerant op-amps are characterized for offset shift vs TID. 2) Single Event Effects (SEE) - transient disturbances or latch-up. Mxtronics op-amps are tested for SEL immunity. 3) Displacement Damage - from neutrons, affects minority carrier lifetime. For precision applications, use op-amps with low initial offset to accommodate radiation-induced shift. Mxtronics provides radiation test reports showing parameter shifts at various TID levels. Design margin should account for end-of-life parameter shifts.

Account for radiation-induced offset shift in design. Use parts with characterized radiation performance. Include design margin.

Key comparator specifications: 1) Propagation delay - time from input crossing to output change. Mxtronics MXC series offers <100ns delay. 2) Input offset voltage - determines accuracy of threshold detection. 3) Hysteresis - built-in or external, prevents oscillation near threshold. 4) Output type - open-collector, push-pull, or complementary. 5) Input common-mode range - should include threshold voltage. For aerospace applications, also consider radiation effects on offset voltage and propagation delay. Mxtronics comparators are characterized for radiation performance.

Select propagation delay based on speed requirements. Include hysteresis for noise immunity. Check radiation performance for space.