Channel & Wiring Configuration

• 32-channel fully differential analog input, single-ended mode not supported
• Independent per-channel amplifier and filter circuitry with no shared signal paths
• Dedicated cold-junction (CJ) sensor channel for thermocouple temperature compensation
• Rear 96-pin shielded DIN connector for front SCXI-1303 terminal block mating
• All channels multiplexed to a single DAQ analog input channel via SCXI backplane

Programmable Gain & Input Range

• Only two fixed software gain gears: ×1, ×100 (no intermediate gain options)
• Gain ×1: ±10 V maximum differential input range
• Gain ×100: ±100 mV minimum measurable differential input range
• Common-mode input limit: ±10 V relative to chassis ground for all gains
• Current measurement: Supports 4-20 mA signals via external shunt resistors

Filter & Scanning Timing Parameters

• Onboard filter: Fixed 3-pole Butterworth low-pass filter, 10 kHz -3dB cutoff
• Channel settling time: 1 µs for ±0.012% full-scale accuracy (far faster than 1102/1102B)
• 60Hz CMRR: 90 dB minimum for power frequency noise suppression
• Recommended warm-up duration: 20 minutes for stable offset drift performance

Key Electrical Specifications

• Input impedance: >1 GΩ powered on; 10 kΩ powered off
• Input bias current: ±0.5 nA; Input offset current: ±1.0 nA
• Overvoltage protection: ±42 VDC powered on, ±27 VDC powered off
• Nonlinearity error: 0.005% FSR at 25℃ calibrated temperature
• Offset temperature coefficient: 20 µV/°C (×1 gain), 1 µV/°C (×100 gain)
• Typical power consumption: 2.9 W, dual ±15 V and 5 V backplane power supply

Mechanical & Environmental Specifications

• Dimension: 172×86×32 mm, standard single-slot SCXI module
• Weight: 611 g per standalone module
• Operating temperature: 0℃ ~ +50℃
• Storage temperature: -20℃ ~ +70℃
• Humidity: 10%–90% non-condensing, max working altitude 2000 m
• EMC certification: CE, FCC Class A industrial electromagnetic compliance

Compatibility Matching List

• Matched terminal block: SCXI-1303 shielded screw terminal block
• Compatible chassis: SCXI-1000, SCXI-1001
• Compatible controllers: SCXI-1600, PCI/PXI SCXI bus adapters, E-series DAQ cards
• Official status: Obsolete, only aftermarket replacement inventory available

Software Compatibility

• Drivers: NI-DAQmx, Traditional NI-DAQ (legacy version)
• Configuration tools: NI Measurement & Automation Explorer (NI MAX)
• Supported software: LabVIEW, LabWindows/CVI, Python DAQmx, C#

Pros & Limitations

• Pros: Fastest settling speed in the 1102 series, 10 kHz wide bandwidth for medium-speed transient signals, built-in CJC for thermocouple testing, high-density 32-channel layout, ultra-low input bias current
• Limitations: Only two gain settings with no flexible gain adjustment, no user-switchable filter gears, no channel-to-channel galvanic isolation, narrow operating temperature range