National Instruments SC-2040 Simultaneous sample-and-hold accessory

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National Instruments · NI DAQ

SC-2040

Name: SC-2040
Brand: National Instruments

The National Instruments SC-2040 is a simultaneous sample-and-hold accessory for DAQ systems. It provides simultaneous sampling with differential amplifiers, rather than matrix-switch routing.

ManufacturerNational Instruments

ModelSC-2040

Product TypeSimultaneous sample-and-hold accessory

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Technical Supportmodel & compatibility help

FunctionSimultaneous sample and hold

AmplifiersEight simultaneously sampling differential amplifiers

DAQ configurationAll analog input channels must use differential input mode

Driver limitationNot supported after NI-DAQmx 8.0.1

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Overview

Product overview

Key product information and technical features.

NI identifies the SC-2040 among its simultaneous-sampling accessories. This sampling method uses sample-and-hold circuitry and an independent amplifier for each channel to capture channel values at the same instant before conversion.

System integration requires attention to legacy DAQ configuration and driver support. NI documentation requires differential analog input configuration for an attached SC-2040, and its accessory support table states that SC-2040 support does not extend beyond NI-DAQmx 8.0.1.

Simultaneous sample-and-hold operation for multichannel acquisition.
Eight simultaneously sampling differential amplifiers, as described by an NI employee in NI technical support discussions.
Listed as an internal accessory option for the CA-1000 configurable connector accessory enclosure.

Verified specifications

Technical data

Verified product specifications.

Sampling method	Simultaneous sample and hold
Required DAQ analog input configuration	Differential input mode on all analog input channels
NI-DAQmx support ceiling	8.0.1; later versions are not supported

Condition & included items

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National Instruments

Manufacturer

NI DAQ / SC analog accessories

Acquisition ecosystem and accessory family

SC-2040

Simultaneous sample-and-hold accessory

Enclosure option

The CA-1000 installation guide lists the SC-2040 as a supported internal accessory.

Confirm the DAQ device, cabling, differential input configuration, and legacy driver version before integration.

Manuals & software

Technical resources

Manuals, software and technical resources for this model.

Types of Scanning Supported by NI Acquisition DevicesKnowledge Article · knowledge.ni.com

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Accessories in Traditional DAQ and NI-DAQmx (Spanish)Driver Support Reference · ni.com

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CA-1000 Configurable Connector Accessory Enclosure Installation GuideInstallation Guide · download.ni.com

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Archived LabVIEW Error Codes: SC-2040 Input and Hold Mode RequirementsTechnical resource

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FAQ

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Product-specific answers based on available technical information.

What does the SC-2040 do?

The SC-2040 provides simultaneous sample-and-hold functionality for DAQ applications. NI lists it among simultaneous-sampling hardware.

Does the SC-2040 support recent NI-DAQmx versions?

NI's accessory support reference states that the SC-2040 is not supported after NI-DAQmx 8.0.1. Do not assume support in later releases.

Which analog input mode is required?

NI's archived LabVIEW error-code reference states that all analog input channels must be configured for differential input mode when an SC-2040 is attached.