INT7 - PCI Board of A/D Integration Converters

INT7 is an internal 24-bit A/D converter for the PCI bus. Discontinued from sale as of February 2013.

INT7 is an internal 24-bit A/D converter board that measures the voltages of detectors. It contains up to 4 data-acquisition channels on one board (one and two channel versions are also available). The channels are completely independent, sigma delta integrating A/D converters, used for processing positive and negative voltages. The board includes four digital inputs and eight digital outputs. The first four digital outputs are also equipped also with relay contacts. The board is manufactured using the SMT montage and provides excellent reliability and temperature stability.

INT7 is the direct successor of our classic INT5 ISA card. The two share an identical analog channel design and thus, identical basic electric parameters.

Advantages of the INT7 A/D converter:

  • No loss of input signal during integration. There are no time delays during which the converter fails to integrate the input signal.
  • There is no continuous servicing of the input analog switches, which would otherwise cause errors (offset, noise, etc.).
  • The amount of data entering the computer is substantially smaller, since individual data items already represent partial integrals.
Manual (PDF)
Compare with other A/D converters (D029)
INT7 - internal PCI A/D Converter

Replacement options

  1. Colibrick A/D Converter

Most current PC do not have the obsolete PCI slot for this card, USB port is used instead.

Accessories:

  • Cable p/n KB71

Specification

INT7
Converter type24 bit integrating, delta-sigma integration
Analog inputsdifferential
Number of channels1, 2 or 4 fully independent, mutually isolated
Input rangeunipolar and bipolar, each channel independentely: 156, 1250 or 10 000 mV
Input impedance> 10 MOhm
Sample rate10, 25.04, 50.08, 100.16 Hz
Non-linearity 
Temperature dependence 
Digital inputs4 TTL (5 V), the first two can be controlled using the built-in opto-couplers
Digital outputs8 TTL (5V), maximum current load 20 mA), the first four control relays

Required PCI slot:

Full size PCI 2.0, 32 bit PCI slot for 5V 32 bits half-length extension card.
Low profile or PCI Express slots cannot be used.

Effective resolution for various acquisition speeds and input ranges:

 10 V1 250 mV156 mV
10 Hz20 bit19 bit16 bit
50.08 Hz18 bit17 bit15 bit
100.16 Hz17 bit15 bit14 bit

Possible combinations:

 Windows 11
(64 bit)		Windows 10
(32 and 64 bit)		Windows 8.1
(32 and 64 bit)		Windows 7SP1*
INT7Clarity
Clarity Lite
(both from 8.7)		Clarity
Clarity Lite
(both from 6.2)		Clarity
Clarity Lite
(both from 4.0.3)		Clarity
Clarity Lite

* From Clarity (Lite) 3.0 the 64-bit OS is supported.

Combinations with obsolete operating systems:

 Windows VistaSP2*Windows XPSP3Windows 2000
INT7Clarity, Clarity Lite
(both until 7.2)		Clarity, Clarity Lite
CSW32
(until 7.4.1)		Clarity, Clarity Lite
(both until 3.0)
CSW32

* From Clarity (Lite) 3.0 the 64-bit OS is supported.