With its highly parallel processing architecture, nanosecond-level response capabilities, and exceptional timing control accuracy, CPLDs have become a core component in modern high-end instrumentation design. In the field of precision measurement and control, CPLDs are gradually shifting from their traditional supporting role to a carrier of critical system functions. The AG32, with its integrated CPLD core featuring 2K LUT logic, perfectly supports a wide range of precision instrumentation products and has been widely adopted in high-end scientific instruments in China.

Key application scenarios for CPLDs in instrumentation include:

1. Precision Timing Control

In high-speed data acquisition systems, synchronization accuracy directly determines the reliability of measurement results. CPLDs leverage hardware-level parallel processing capabilities to achieve strict synchronization of multi-channel signals, eliminating the timing jitter associated with sequential execution in traditional MCUs. For example, in a power harmonics analyzer, a CPLD can simultaneously control the sample-and-hold (S/H) registers of three voltage/current signals, ensuring synchronization errors of in-phase voltage and current within 71.02μs.

2. Interface Expansion and Protocol Implementation

Instrumentation typically requires connectivity to a variety of sensors, actuators, and communication modules. CPLDs play a key role as a hardware abstraction layer, significantly simplifying system architecture.

3. High-Speed Signal Preprocessing

The CPLD's hardware parallel processing capabilities enable it to directly process the digital logic portion of high-speed analog signal chains, effectively offloading the computational load from the main processor.

Electronic analytical balances (with 0.01mg accuracy) are a benchmark application of CPLDs in precision measurement. These instruments demand extremely high performance indicators such as measurement stability, temperature drift, and repeatability, making them a typical application platform for CPLDs in this field. The AG32 has been widely used in domestic electronic analytical balances. Its primary functions include:

-Electromagnetic force compensation excitation and signal acquisition

-Automatic calibration and temperature compensation algorithms

AGM Micro launched the classic domestic CPLD chip, the AG256, in 2014. Subsequently, it released other classic CPLD products, including the AG576 and AG1280. These chips are particularly well-suited for high-speed data acquisition and protocol conversion in instrumentation, and were therefore widely adopted in various instrumentation solutions. After more than a decade of iteration and evolution, the AG32 series (AGRV2K) continues to serve instrumentation manufacturers both domestically and internationally, enjoying widespread adoption.

The AG32 series MCU+CPLD products have built-in CPLD logic and comparators within the chip, and can be customized to develop special functions through the CPLD logic, which can effectively meet the various customized needs of instruments and meters. In addition to using its main CPLD, customers can also take advantage of its powerful MCU functions (main frequency up to 248M), and the pins can be dynamically and flexibly configured. The price is only equivalent to that of a traditional CPLD chip, effectively reducing the customer's BOM cost.