Fluke 2680A-FAI Fast Analog Input Module

The Fluke 2680A-FAI Fast Analog Input Module is a high-speed data acquisition component that integrates into the Fluke 2680 Series Data Acquisition Systems. Each module provides 20 universal analog input channels capable of sampling at up to 1,000 readings per second per module, with system-level throughput exceeding 3,000 channels per second per chassis. The module delivers 16-bit resolution and 0.04% accuracy at 4.5 digits of resolution, making it ideal for precise capture of transient signals across diverse measurement applications.

Technical Specifications

• Channels: 20 universal analog input channels per module; up to 120 channels in a single 2680A chassis (six modules); over 2,000 channels with linked chassis systems


• Sample Rate: Up to 1,000 readings per second per module; system throughput exceeds 3,000 channels per second per chassis


• Resolution: 16-bit with 0.04% accuracy (4.5 digits)


• Input Voltage Range: Up to +50 V DC or 30 V AC RMS on all channels


• Channel-to-Channel Isolation: 50 V maximum


• Module Weight: 0.8 kg (1.8 lb)

Key Features

• Supports universal input conditioning: DC Volts, AC Volts, RTD, Ohms, Thermocouple (types J, K, R, S, T, N, I, U, C, B), Thermistor, DC Current, AC Current, and Frequency


• Compatible with transducers including load cells, pressure sensors, and displacement sensors


• Field Effect Transistor (FET) input architecture enables voltages well above standard 15 V industry levels


• 10BaseT and 100BaseT Ethernet connectivity with TCP/IP protocol support

Typical Applications

• High-throughput transient signal acquisition


• Multi-channel data logging in laboratory and field environments


• Distributed test systems via network integration


• Mixed-signal measurement requiring varied sensor inputs

Compatibility & Integration Designed for Fluke 2680A Data Acquisition System chassis. Each chassis accommodates up to six modules in dedicated slots, with five slots supporting analog input modules (FAI or PAI). Power requirements: 100–240 V AC (50–60 Hz) or optional 9 V DC to 45 V DC.