In the context of advancing Industry 4.0, large-scale development of renewable energy power systems, and upgrades in high-end equipment manufacturing, data acquisition systems (DAS) – serving as the "nerve endings" of industrial control – face critical efficiency bottlenecks in sampling synchronization, precision stability, environmental adaptability, and design convenience. Current industrial scenarios confront prominent challenges: asynchronous multi-channel sampling causing data analysis deviations, increased design complexity due to external component dependency, insufficient reliability in harsh environments, poor interface compatibility driving up adaptation costs, and high power consumption failing to meet embedded system requirements.

To address these challenges, Corebai Microelectronics has introduced the CBM76AD06168-channel synchronous sampling analog-to-digital data acquisition system (DAS), a high-integration industrial-grade core component that resolves critical data acquisition challenges through its combination of high precision, high integration, high reliability, and flexible adaptability. 

Implement key industrial scenarios on the ground

Full-channel synchronous sampling with ultra-high precision: As a 16-bit resolution 8-channel synchronous sampling DAS, the CBM76AD06 enables all channels to perform synchronous sampling at a throughput rate of 200kSPS. It delivers a maximum signal-to-noise ratio (SNR) of 95.5dB, total harmonic distortion (THD) as low as-107dB, and both integration nonlinearity (INL) and differentiation nonlinearity (DNL) are controlled within ±0.5LSB, ensuring precise capture of time correlations in multi-channel signals.

The system adopts a fully integrated architecture featuring built-in analog input clamp protection (tolerant to ±16.5V overvoltage), a second-order anti-aliasing filter (with 22kHz cutoff frequency providing 40dB anti-aliasing suppression at 200kSPS sampling), and a 2.5V precision internal reference source with buffer. It requires only a single 5V analog power supply (AVCC:4.75V~5.25V) and a 2.3V~5.25V logic power supply (VDRIVE). This design eliminates external op-amps, bipolar power supplies, and independent reference sources, reducing peripheral components by over 30%. This optimization lowers BOM costs, minimizes PCB footprint, shortens design and debugging cycles, and makes the solution compatible with compact industrial control modules.

Designed for industrial environments, this device operates across a wide temperature range of-40°C to +85°C. Its analog input channel features a 7kV ESD rating and maintains stable 1MΩ impedance (unaffected by sampling frequency), with input clamping capable of withstanding transient overvoltage. In applications like monitoring renewable energy photovoltaic inverters, it withstands high temperatures and electromagnetic interference. For outdoor power line monitoring, it resists low temperatures and lightning-induced overvoltage, ensuring uninterrupted data collection.

The system offers three interface modes: parallel, serial, and parallel byte selection. It supports switching between SPI/QSPI™/MICROWIRE™/DSP interfaces via the PAR/SER/BYTESEL and DB15/BYTESEL pins. The REFSELECT pin enables switching between internal and external reference sources, supporting multi-device cascading. Without hardware modifications, it seamlessly integrates with FPGA, DSP, MCU, and other platforms. For example, it maintains compatibility with existing DSP systems during upgrades of traditional industrial instruments, while ensuring synchronization through external references when cascading multiple devices.

Smart Power Management: The CBM76AD06 optimizes power consumption across operational states. In normal operation (200kSPS sampling), it consumes 100mW; standby mode uses 25mW; and shutdown mode reduces power to μW level, with mode switching via the STBY pin. For portable data loggers, standby mode extends battery life; for intermittent sampling devices, shutdown mode minimizes non-operational energy consumption.

The CBM76AD06 supports oversampling rates from 2x to 64x via the OS[2:0] pin. With 16x oversampling, it achieves a maximum SNR of 97dB and 3dB adjustable bandwidth (6kHz). The maximum throughput dynamically adjusts according to the oversampling rate (200kSPS without oversampling, 3.125kSPS with 64x oversampling). For high-precision measurements (e.g., temperature and pressure acquisition), high oversampling enhances SNR, while high-speed applications (e.g., motor control) use no oversampling to ensure real-time performance.

application scenarios

l Power line monitoring and protection system

l Multimotor Control

l Instrumentation and Control Systems

l Multi-axis positioning system

l Data Acquisition System (DAS)