ISPPAC81-01SI

Overview

The ISPPAC81-01SI is a programmable analog filter device from Lattice Semiconductor designed for signal conditioning applications. It integrates a precision analog filter core with non-volatile configuration memory, allowing designers to define filter characteristics such as cutoff frequency and gain without external passive components. The device utilizes the ispPAC technology platform, enabling rapid prototyping and field reconfigurability through PC-based design software. This integration reduces board space and simplifies the design process by eliminating the need for discrete resistor and capacitor networks typically required in traditional active filter implementations.

Feature Summary

• Integrated programmable analog filter with non-volatile configuration storage
• Eliminates external passive components (resistors/capacitors) for filter definition
• Supports rapid design iteration via PC-based ispPAC Designer software
• Compact package suitable for space-constrained embedded systems

Applications

• Sensor signal conditioning and noise filtering
• Anti-aliasing filters in data acquisition systems
• Audio signal processing chains
• Industrial control system input stages

Procurement Notes

Verify the specific suffix '01SI' against the manufacturer's current datasheet to confirm pinout compatibility and operating temperature range. Ensure that the design tool version supports this legacy part number if field updates are planned. Confirm availability status as older generation ispPAC devices may have limited production runs or be subject to discontinuation notices.

Selection Notes

Select the ISPPAC81-01SI when a fixed, high-performance analog filter response is required without the tolerance drift associated with discrete passive components. Compare filter order and bandwidth requirements against other ispPAC families like the ispPAC10 series if additional I/O logic is needed. Verify supply voltage compatibility with the target system rail before finalizing the component choice.

Part Context

The ISPPAC81 belongs to the broader ispPAC family of programmable analog solutions from Lattice Semiconductor. These devices bridge the gap between fixed-function analog ICs and complex digital signal processors by offering customizable analog behavior in a small footprint. The product line focuses on simplifying mixed-signal designs by integrating precision analog blocks with non-volatile memory for persistent configuration.

Replacement Considerations

Direct pin-to-pin replacements for legacy ispPAC parts are rarely available due to proprietary architecture. Designers should evaluate newer Lattice ispPAC models or discrete active filter solutions based on updated performance specifications. Consult the manufacturer's obsolescence notices for potential end-of-life status.