| Product | Product Name | working voltage | Power Dissipation | Package | Datasheet |
| XD231 | Precision Voltage-to-Frequency Converters | 4V-40V | | DIP-8 | |
| XL331 | Precision Voltage-to-Frequency Converters | 4V-40V | | SOP-8 | |
| XD331 | Precision Voltage-to-Frequency Converters | 4V-40V | | DIP-8 | |