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NI (National Instruments) · PCI Express

PCIe-6341

The NI PCIe-6341 is an X Series PCI Express multifunction I/O device with 16 analog inputs, 2 analog outputs, 24 bidirectional digital channels and 4 counters/timers.

ManufacturerNI (National Instruments)

ModelPCIe-6341

Part Number781046-01

Product TypePCI Express, 16 AI (16-Bit, 500 kS/s), 2 AO (900 kS/s), 24 DIO Multifunction I/O Device

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Bidirectional Digital Channels24

Supported Power InputBus Powered

Max Single-Ended Analog Input Channels16

Number of Counters/Timers4

Max Differential Analog Input Channels8

Analog Input Absolute Accuracy2190 μV

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Overview

Product overview

Key product information and technical features.

The PCIe-6341 combines analog acquisition, analog output, digital I/O and counter/timer functions on a PCI Express DAQ device. NI part number 781046-01 identifies this X Series model.

Analog input offers 16-bit resolution and a maximum sample rate of 500 kS/s, with up to 16 single-ended or 8 differential channels. Sampling is not simultaneous. Two 16-bit analog outputs provide a ±10 V output range.

The device uses a VHDCI front connection and draws power through the host bus. Check the NI specifications, dimensional drawings and installation guide when planning host installation and signal connections.

16-bit analog input with selectable ±0.2 V, ±1 V, ±5 V and ±10 V ranges.
Up to 16 single-ended or 8 differential analog input channels; sampling is not simultaneous.
Two 16-bit analog output channels with a ±10 V range and a maximum update rate of 900 kS/s.
24 bidirectional digital I/O channels with 5 V logic levels.
Four counters/timers complement the analog and digital I/O functions.
Bus-powered PCI Express interface with a VHDCI front connection.

Verified specifications

Technical data

Verified product specifications.

Number of Bidirectional Digital Channels	24
Supported Power Input	Bus Powered
Maximum Number of Single-Ended Analog Input Channels	16
Number of Counters/Timers	4
Maximum Number of Differential Analog Input Channels	8
Analog Input Absolute Accuracy	2190 μV
Analog Input FIFO Buffer Size	2047 samples
Maximum Sample Rate	500 kS/s
Simultaneous Sampling	No
Enclosed	Yes
Analog Input Resolution	16 bits
Bus Connector	PCI Express
Front Connection Type	VHDCI
Number of Analog Output Channels	2
Maximum Analog Update Rate	900 kS/s
Reconfigurable	No
Number of Analog Input Channels	16
Maximum Digital Update Rate	1 µs
Operating Temperature Range	0 °C to 50 °C
Bus Connection	PCI Express
Digital I/O Logic Levels	5 V
Maximum Clock Rate	10 MHz
Number of External Clock Inputs	8
Signaling Type	Single-Ended
Analog Input Voltage Range	-0.2 V to 0.2 V -1 V to 1 V -5 V to 5 V -10 V to 10 V
Number of Voltage Output Channels	2
Analog Output Voltage Range	-10 V to 10 V
Analog Output Resolution	16 bits
NI part numbers	781046-01

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NI

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PCI Express

Bus Connector

PCIe-6341

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Getting Started (NI)Getting Started · ni.com

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Specifications (NI)Specifications · ni.com

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Letter Of Volatility (NI)Letter Of Volatility · ni.com

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Dimensional Drawings (NI)Dimensional Drawings · ni.com

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Product Page (NI)Product Page · ni.com

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FAQ

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Product-specific answers based on available technical information.

What is the NI part number for the PCIe-6341?

The supplied verified catalog record identifies NI part number 781046-01.

How many analog input channels does the PCIe-6341 provide?

It provides up to 16 single-ended or 8 differential analog input channels, with 16-bit resolution.

Does the PCIe-6341 sample its analog inputs simultaneously?

No. Simultaneous sampling is not supported. The listed maximum sample rate is 500 kS/s; this should not be interpreted as a simultaneous per-channel rate.

What output and digital I/O functions are included?

The device has two 16-bit analog outputs, 24 bidirectional digital I/O channels and four counters/timers.

What host interface and signal connector does it use?

The PCIe-6341 uses PCI Express for its host connection and VHDCI for its front signal connection. The device is bus powered.