NOVOSENSE Microelectronics has launched its new NSOPA series of general purpose operational amplifiers. Designed for automotive and industrial applications, these amplifiers can be widely used for signal conditioning of voltage, current, temperature and other signals, OBC/DC-DC/PDU, traction inverters, BMS, thermal management, BCM, industrial automation, inverters photovoltaics, motor drivers, digital power supplies and charging stations.
The inaugural product line, the NSOPA9xxx series, addresses high voltage applications up to 40V. In addition, a series of low-voltage products operating at 5.5V will be launched soon. Within each series, a wide range of models are available, with bandwidth options of 1 MHz, 5 MHz or 10 MHz, with 1, 2 or 4 channel configurations. Additionally, industrial and automotive-grade versions are offered for each model, ensuring comprehensive coverage of diverse market needs.
The automotive version of the NSOPA9xxx series meets AEC-Q100 Grade 1 reliability requirements and can operate in harsh environments from -40°C to 125°C. Different package versions are available to meet different customer needs: SOT23-5, SOIC-8 for 1 channel; MSOP-8, SOP-8 for 2 channels; and TSSOP-14, SOP-14 for 4 channels.
Focusing on automotive electronics and renewable energy, the introduction of the NSOPA series significantly strengthens NOVOSENSE's product offerings in these critical sectors. The series' naming convention provides clear insights into its functionalities: “OPA” designates its role as an operational amplifier; the first digit, 9 for high voltage (40 V) or 8 for low voltage (5.5 V); the next two digits denote the bandwidth; and the last digit indicates the number of channels. For example, NSOPA9052 stands for a 40V (withstand voltage), 5MHz (bandwidth), 2-channel operational amplifier, simplifying identification for customers regarding its function, bandwidth, and channel count.
The NSOPA9xxx series achieves exceptional performance with low displacement and minimal runout. Take, for example, the NSOPA905x model, boasting an offset voltage of just 200μV and a drift as low as 0.5μV/°C. The series also has built-in EMI/RFI filters to strengthen the suppression of space radiation interference, ensuring good anti-interference and robustness of devices in practical applications.
When the power supply exceeds 4 V, the typical DC power supply rejection ratio (PSRR) exceeds 130 dB, while AC PSRR reaches 85 dB at 1 kHz and 65 dB at 10 kHz. These numbers surpass the industry standard, setting a new standard of performance by improving performance stability and the coupling of inhibition interference to the acquisition loop via the power path.
The NSOPA9xxx series provides customers with rail-to-rail input and output performance, with an input common mode range of V–0.1 to V++0.1. The DC common mode rejection ratio (DC PSRR) is 110 dB minimum and 120 dB typical over the main input pair range of a 40 V power supply. CMRR is also very effective in suppressing mode jitter common at high frequencies.
The NSOPA9xxx series excels in AC parameter performance, offering versatile options tailored to various bandwidth requirements. Notably, the series includes three distinct versions – NSOPA901x, NSOPA905x and NSOPA910x – each corresponding to bandwidths of 1 MHz, 5 MHz and 10 MHz respectively, meeting diverse application needs. Equipped with an integrated slew boost circuit designed to handle large signals, it has an impressive 12V/μs slew rate, suitable for managing sudden pulse signals such as those encountered in overcurrent or overvoltage scenarios crucial to system safety. system. This high rate of variation facilitates faster activation of protection thresholds, thus providing crucial time for the activation of the system's protection mechanisms. Furthermore, in terms of noise performance, the NSOPA series leverages a low-noise process platform, providing a minimum output noise of 6μV in the low-frequency range of 0.1Hz to 10Hz.
The NSOPA905x adopts a unique design that ensures minimum current flow (<1μA), effectively mitigating heating issues within the operational amplifier, thus ensuring stable and reliable operation.
