Nisshinbo Micro Devices NA2100

The NA2100 Voltage to Frequency Converter (VFC) is engineered to provide precise and reliable voltage-to-frequency conversion, meeting the stringent demands of modern electronic applications. The device is highly versatile for applications such as simple analog-to-digital conversion and isolated signal transmission. The NA2100 is designed using advanced CMOS technology, ensuring high-performance and low-power consumption. It operates efficiently on a single power supply ranging from 3.0V to 5.25V and has a typical power usage of just 3mW, contributing to energy-efficient designs. It also includes an automatic power-down mode when the clock input (CLKIN) remains low for one millisecond, further optimizing power management in various applications. Its core functionality is defined by its ability to convert analog voltage inputs into a corresponding frequency output. The input voltage can range from 0 V to V_REF; as a result, the output frequency varies from 10% to 90% of the clock input frequency (fCLKIN). An external system clock is used up to a maximum input frequency of 1 MHz. The device includes an internal 2.5V reference voltage but can also use an external reference voltage up to V_DD. This flexibility allows it to adapt seamlessly to various system requirements. The device operates within a wide temperature range from -40°C to +125°C, making it ideal for industrial applications operating in harsh environments. The NA2100 uses a compact VSP-8-AF (MSOP8) package and complies with JEDEC MO-187-DA standards.

Key features

• Synchronous operation
• Full-scale frequency set by external system clock
• 3 V / 5 V Operation
• Low consumption: 3 mW (Typ)
• Nominal input range: 0 to V_REF
• V_REF Range: 2.5 V to V_DD
• Internal reference voltage: 2.5 V
• Maximum input frequency 1 MHz
• Operating temperature range: -40 °C to +125 °C
• Package NA2100AF: VSP-8-AF (MSOP8), compliant with JEDEC MO-187-DA standards

Applications

• Simple AD converter
• Simple isolated transmission
• Temperature controller
• Voltage to frequency conversion