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A6907: Difference between revisions
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[[File:Tek-A6907-A6909.jpg|thumb|350px|right]] | |||
The '''Tektronix A6907 / A6909 High Voltage Isolators''' connect “floating” (not referenced to ground) signals to an oscilloscope or digitizer for measurement. | |||
The A6907 has four, the 6909 has two input channels. | |||
The A6907/A6909 include special probes with an in-cable baling for shielding against large do/dot fields, only usable with these instruments. Optionally, an [[A620|A620 current probe]] can be connected. | |||
{{BeginSpecs}} | |||
{{Spec | Bandwidth | DC to 60 MHz (100 and 200 mV ranges: 50 MHz)}} | |||
{{Spec | Deflection | 100 mV/Div to 200 V/Div, 1-2-5 (scope input @ 100 mV/Div) }} | |||
{{Spec | Normal mode voltage | max. 850 V (DC + peak AC) }} | |||
{{Spec | Common mode voltage (channel to chassis) | 850 V (DC + peak AC) or 600 V (ACRMS); derate at 20 dB/decade from 500 kHz to 60 MHz }} | |||
{{Spec | Common mode voltage (between channels) | 1700 V (DC + peak AC) or 1200 V (ACRMS) }} | |||
{{Spec | CMRR | 105 dB @ 60 Hz, 60 dB @ 1 MHz, 50 dB @ 10 MHz }} | |||
{{Spec | Common mode slew rate | 20 kV/ms }} | |||
{{Spec | Features | | |||
* Self-calibration | |||
* Portable | |||
* GPIB interface standard on the A6907 (option 10 on the A6909) | |||
}} | |||
{{EndSpecs}} | |||
==Manuals== | |||
* [http://w140.com/tek_a6907_a6909_service.pdf Tektronix A6907 A6909 Service Manual (PDF)] | * [http://w140.com/tek_a6907_a6909_service.pdf Tektronix A6907 A6909 Service Manual (PDF)] | ||
==Internals== | |||
Optical couplers, insulated transformers, and plastic barriers are used for extremely high isolation between channels and the chassis, and from channel to channel. | |||
An electrical-to-optical (E/O) converter isolates the signal and converts it to an optical analogue. An optical-to-electrical (O/E) converter demodulates the optical signal to an electrical signal whose common mode elements have been rejected. The E/O converter uses a low-contact DC to DC converter as a power source to provide a high degree of isolation. | |||
[[Category:Amplifiers]] | |||