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AN220E04 Datasheet Dynamically Reconfigurable FPAA
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AN220E04 Datasheet – Dynamically Reconfigurable FPAA
PRODUCT AND ARCHITECTURE OVERVIEW
The AN220E04 is the first member of Anadigm®’s second generation FPAA family – the Anadigmvortex family. Based on a fully differential switched-capacitor architecture, this new product family features higher bandwidth, improved total harmonic distortion (THD) and the ability to implement a host of advanced functions. The AN220E04 consists of a 2 x 2 matrix of fully configurable switched capacitor configurable analog blocks (CABs), enmeshed in a fabric of programmable interconnect resources. These programmable features are directed by an on-chip SRAM configuration memory. The four CABs have access to a single Look-Up Table (LUT) which can be used to implement non linear functions such as user-defined input-to-output transfer functions, and arbitrary signal waveform generation. Analog input signals come in from the outside world via the four input cells. The fourth input cell of the AN220E04 has a special ‘multiplexing’ feature which allows the connection of up to four unique signal sources. An input cell can accept either a singleended signal or a differential signal pair. The input cells each have built-in programmable anti-aliasing filters, as well as a high gain amplifier which has an optional chopper stabilized operating mode designed for use with signals requiring significant gain and hence ultra low input offset voltages. The AN220E04 is also designed to support dynamic reconfiguration. There are two memories on the AN220E04:
Figure 1: Architectural overview of the AN220E04 device
Shadow SRAM and Configuration SRAM. The new.