LPCI-AIO16A/E Multifunction Analog I/O Card Family

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  • 16-bit resolution A/D
  • Sampling rate:
    • 16A version: 500Ksamples/sec (maximum aggregate)
    • 16E version: 250Ksamples/sec (maximum aggregate)
  • 16 single-ended or 8 differential analog inputs
  • Channel-by-channel ranges of 0-1V, 0-2V, 0-5V, 0-10V, ±0.5V, ±1V, ±2V, ±2.5V, ±5V, ±10V
  • A/D Start sources: Software, Timer, and External Trigger (rising or falling edge; software selectable)
  • A/D Modes: Single Channel or Scan
  • Offset / Gain Error Calibration
  • Noise reduction with Channel Oversampling
  • Over-voltage protection of -40V to +55V
  • First In First Out (FIFO) A/D buffer
  • Two 12-bit Digital-to-Analog (DAC) outputs
  • DAC error calibration
  • 16 high-current Digital I/O lines
  • 16-bit programmable counter/timer


  • A/D FIFO up to 32k samples
  • Factory input range / gain of 1-100
Last updated on November 2, 2023, 6:24 pm


In Stock


High-Speed, Low-Profile, Universal PCI, 16-bit Multifunction Analog I/O Board

Model LPCI-AIO16A provides 500k samples/second, with 16-bit resolution, for the board’s 16 single-ended or 8 differential analog input channels. Also included are two 12-bit analog outputs, 16 digital I/O lines and an 8254 with three 16-bit counter/timers. The board meets the MD2 Low Profile PCI Bus Specification and can be installed in any 3.3V or 5V PCI or PCI-X slot. This multifunction I/O board is useful where space is limited such as thin-client and high-density rack-mount servers and many embedded applications. Priced at just $695, the board features an excellent price/performance value for precision PC-based measurement, analysis, monitoring and control.

The LPCI-AIO16A features 10 standard analog input ranges and an extremely quiet front end. A unique channel-by-channel programmable gain feature enables measurement of an assortment of large and small signals in one scan all under hardware control at up to 500k samples/second. The board’s data FIFO and ability to trigger the A/D in real time assures synchronized sampling that is unaffected by other computer operations—an essential requirement for signal, vibration and transient analysis where high data rates must be sustained for short periods of time. Connections are made to the board via a 50 pin SCSI connector. A shielded round wire cable and screw terminal board are optionally available as accessories for bench testing or as part of an overall OEM solution.


The LPCI-AIO16A is supported for use in most operating systems and includes a DOS, Linux, and Windows 95/98/Me/NT/ 2000/2003/XP compatible software package. This contains sample programs and source code in “C” and Pascal for DOS, and Visual Basic, Delphi, C++ Builder, and Visual C++ for Windows. Also incorporated is a graphical setup program in Windows. Third party support includes a Windows standard dll interface usable from the most popular application programs, along with LabView .VI samples. Linux support consists of installation files and basic samples for programming from user level via an open source kernel driver.




Drivers and Downloads

Full list of available Downloads: Software Packages, Drivers, Manuals, and other documents

Information about our Free Software packages:

ACCES is proud to provide a full suite of software support with every Data Acquisition product. We are committed to supporting the most popular operating systems and platforms for our customers. Currently we are actively supporting XP -> 10, both 32 & 64 bit, including “Server 2008,” “Embedded,” and “Compact” flavors for all plug-and-play products including PCI, PCI Express, USB, and more. Many products continue to ship with support for additional operating systems such as DOS, Windows 95, 98, Me, NT4, and 2000.


Among the software we deliver with our products are sample programs in a wide variety of programming languages. These samples are used to demonstrate the software interfaces to our products — and many can be used as-is in your production environments, or to test functionality of the devices out-of-the-box. We’re currently actively supporting sample programs in Microsoft Visual C#, Visual Basic, Delphi, and Visual C/C++, with many devices including samples in Borland C/C++ 3.1 for DOS. Additionally we provide National Instruments LabVIEW compatible DLLs and many demonstration VIs for our devices.


Drivers for various operating systems are also provided, including active support for Windows XP -> 10 — all in both 32-bit and 64-bit flavors, and including consumer, server, and embedded varieties — as well as the 2.6 and newer Linux kernels and recent OSX / macOS versions. Many products continue to ship with driver support for Windows 95, 98, Me, NT4, and Windows 2000, but support for these operating systems is considered deprecated.

Setup Programs and Utilites

Our Data Acquisition devices also include a graphical setup utility that walks you through the process of configuring any option jumpers or switches on the device, as well as explaining a little about the various connectors present.

Many devices also include utility programs – little tools to make your use of the device easier, such as EWriter, a program that allows you to read and write data in the user-accessible EEPROM locations on all our USB data acquisitition products; or WinRISC, a “Really Incredibly Simple Communications” terminal program that lets you get started instantly with serial devices.

“Register Level” Documentation

Besides all this software in all these languages and operating systems ACCES has a policy of open and transparent development: none of our lowest-level “register” interfaces are hidden from you — we document every register in every bus card, every command in every serial board, and every usb control transfer in every USB Data Acquisition board. These lowest-level interfaces allow you to develop for our products in ANY operating system or language, regardless of our actively supporting it or having a driver for it. We have customers actively developing in ADA, Android, Python, Java, MATLAB, Solaris, and more, just by referring to our complete low-level interface documentation! And we provide the full source code to all of our drivers, regardless of operating system, to give you an even bigger head start in your own development tasks.

No Fees or Royalties

All of this software is provided at no additional charge, and is licensed under any of a variety of flexible — and royalty free — options. Check out our software license explanation if you’d like more information.

Custom Software

ACCES also offers Custom Software Services for our products. Our prices are unbelievably low, often as inexpensive as free! If you need something tweaked to support your needs, or an entire enterprise application developed from scratch, it is definitely worth your time to inquire with us, first.

Further information about available ACCES Software:

Redistributing Windows Drivers
A list of ACCES drivers and the files that compose them under different versions of Windows, so you can easily redistribute ACCES cards and drivers.


ACCES has successfully partnered with Wind River to bring our entire line of PCI and PCI Express DAQ cards to VxWorks 7!

VxWorks 7 VxBus Gen 2 drivers, with easy-to-use API-libraries, are available for this product, including full source and sample code.

Designed to be compatible with our AIOWDM.dll Windows driver & API, this kernel module adds zero% CPU-cycle overhead to your VxWorks runtimes while allowing the lowest-latency hardware register access possible.

You can find more information about our VxWorks libraries and services on our Wind River Silver Partner page.


  • Inputs: 16 single-ended or 8 differential
  • Resolution: 16-bit
  • Bipolar ranges: ±0.5V, ±1V, ±2V, ±2.5V, ±5V, ±10V
  • Unipolar ranges: 0-1V, 0-2V, 0-5V, 0-10V
  • Sampling rate: 500KHz (250kHz for “16E” version)
  • Type: Successive approximation
  • Overvoltage protection: 33V
  • Nonlinearity: ±1 LSB max, monotonic
  • A/D FIFO: 1024 16-bit wide samples
  • Calibration: Automatic with values stored in EEPROM
  • Trigger Source: Software selectable: external trigger, programmable timer, program command


  • Outputs: 2
  • Resolution: 12-bit
  • Ranges: 0-5V, 0-10V
  • Relative accuracy: ±2 LSB
  • Nonlinearity: ±0.2 LSB
  • Settling time: 8µs
  • Output current: 5mA
  • Calibration: Automatic with values stored in EEPROM

Digital I/O

  • Number of I/O: 16 (programmable in groups of eight)
  • Input voltage
    • Logic low: 0.0V min, 0.8V max
    • Logic high: 2.0V min, 5.0V max
  • Input current: ±1µA max
  • Outputs
    • Logic low: 0.0V min, 0.55V max
    • Logic high: 2.4V min, 5.0V max
  • Output current
    • Logic low: 64mA max sink
    • Logic high: 32mA max source


  • Type: 82C54
  • A/D Pacer clock: 16 or 32-bit
  • Clock Frequency: 10MHz


  • Power required: +12VDC – 25mA typical, -12VDC – 25mA typical, +5VDC – 65mA typical
  • Operating Temperature: 0° to +70°C
  • Storage Temperature: -50° to +120°C
  • Humidity: 5% to 90% RH, non-condensing

Regulatory Compliance

This product is in full compliance with CE requirements.

ModelDescriptionPrice (USD)

250ksamples/sec High-Speed, Low-Profile, Universal PCI, 16-bit Multifunction 2Analog I/O Board


500Kssamples/sec High-Speed, Low-Profile, Universal PCI, 16-bit Multifunction Analog I/O Board

CAB50-3-SCSI Three foot 50-pin SCSI round wire cable $40.00
STA-50-SCSI 50-pin screw terminal board with one 50-pin SCSI connector $99.00
A/D FIFO up to 32k samples
Factory input range / gain of 1-100