STMicroelectronics has introduced the new TSX7 series of precision 16 V op amps that combine very high accuracy with a wide operating-voltage range and excellent robustness. The low input-offset voltage, Common Mode Rejection Ratio (CMRR), and temperature drift eliminate any need for trimming or calibration in the assembled circuit while ensuring consistent performance over a wide automotive-grade temperature range from –40 °C to 125 °C.
The new devices build on ST’s advanced 18 V analog manufacturing technology and the success of its TSX5, TSX6, and TSX9 series of low-power op amps.
The low input-bias current and the energy-efficient combination of low power consumption and gain bandwidth make the TSX7 series ideal for use in power-constrained sensor-signal-conditioning applications, while the wide supply-voltage range, stability in challenging operating conditions, and tolerance of electrostatic discharge (ESD) up to 4 kV (Human Body Model) fit well in applications such as industrial equipment, building automation, medical instrumentation, LED lighting, and automotive Electronic Control Units (ECUs). In addition, the rail-to-rail input and output functionality allow the TSX7 op amps to be used for low-side and high-side current measurements without limitation.
Key technical features include:
- Input offset voltage no more than 200 µV at 25 °C;
- Minimum guaranteed Common Mode Rejection Ratio (CMRR) of 91 dB
- Maximum temperature drift of 2.5 µV/°C;
- Excellent energy-efficient combination of power consumption and gain bandwidth (GBW) with maximum Icc of 850 µA for 2.7 MHz GBW and 9 MHz GBW for Gain ≥10.
The TSX7 op amps are in volume production, with prices starting from $0.52 for 1,000 units.
