Modular Systems > National Instruments > NI-660x Series

PXI-6608

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PXI-6608, 80 MHz, 8-Channel, PXI Counter/Timer Module

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National Instruments PXI-6608 PXI Counter/Timer Module

The PXI-6608 (Part Number: 777937-01) Counter/Timer Module produced by National Instruments is an enhanced version of the PXI-6602, with the addition of a high-stability clock, which is known as an oven-controlled crystal oscillator (OCXO). This module has eight up/down counters/timers, 32 bits resolution, 1 A to 2.5 A power required, 300 mV Schmitt triggers hysteresis, measure and source frequencies of 80 MHz each, 25 kΩ to 500 kΩ input impedance, and 75 Ω output impedance. A five minute warm-up time along with a temperature ranging from 0 °C to 55 °C is recommended to achieve these specifications.

A valuable feature of the National Instruments PXI-6608 module is known as duplicate count prevention or synchronous counting mode. This feature guarantees that a counter yields accurate information in applications that are an unhurried or non-periodic external source. Duplicate count prevention is only pertinent to buffered counter applications, such as measuring frequency or period. During buffered counter applications, the counter should save the number of times an external source pulses between rising edges on the Gate signal.

The OCXO on the PXI-6608 Counter/Timer Module determines the preciseness of the user’s time measurement and pulse generation. The OCXO can be operated as a GATE or SOURCE for a counter. A third option is to utilize the OCXO as the PXI backplane clock. Any modules that are phase locked to the PXI backplane clock will obtain equivalent clock steadiness as the Counter/Timer Module.  The common reference clock signal can be utilized to coordinate numerous modules in a measurement or control system.

The PXI-6608 is run using the NIDAQmx driver software which is compatible with software packages/application development environments (ADEs) such as LabVIEW, LabWindows/CVI, or Measurement Studio.

The NI device measures 16.0 x 10.0 cm in physical dimensions. It has recommended operating and storage temperature ranges of 0 °C to 55 °C and –20 °C to 70 °C respectively, and non-condensing operating and storage humidity ranges of 0% to 90% and 5% to 95% respectively.

Apex Waves will continue to Buy, Sell, and Repair EOL NI Hardware in perpetuity. While the PXI-6608 entered the NI Maintenance phase on December 30, 2022, it will remain available with Apex Waves. Request your quote today!

Model PXI-6608
Manufacturer National Instruments
Part Number 777937-01
Series NI-660x
Type PXI Counter/Timer Module
Counters/Timers 8
Measure Frequency 80 MHz
Source Frequency 80 MHz
PXI-6608 Manual User Manual and Maintenance Manual Available for Download
Price Contact a sales representative for a quote.

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National Instruments PXI-6608 Frequently Asked Questions

 

Question: Does the PXI-6608 utilize a crystal oscillator?

Answer: Yes, the PXI-6608 has a 10 MHz oven-controlled crystal oscillator (OCXO).

 

Question: Could the PXI 6608 be used in an aerospace environment?
Answer: Yes, the PXI 6608 has rugged features designed to be used in environments such as aerospace and automotive.

 

Question: What is the oscillator stability rate of the NI PXI-6608?

Answer: The oscillator stability of the NI PXI-6608 is 75 ppb.

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Common Typos:

LXI-6608, PSI-6608, PXI-Y608, PXI-66O8, PXI-660O

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