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Instek GFG-8255A Function Generator



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 Instek GFG-8255A

GFG-8255A Datasheet

 GFG-8255A Features:
  • 0.5Hz ~ 5MHz Frequency Range
  • Sine, Square, Triangle, Ramp, TTL and CMOS Output Waveforms
  • External Voltage Controlled Frequency (VCF) Function
  • Duty Cycle Control with Signal Inversion Capability
  • Variable DC Offset Control
  • Two Step (-20dB x 2) and Variable Attenuator
  • Built-in 6 Digit Counter with INT/EXT Function up to 150MHz
  • INT/EXT AM/FM Modulation
  • LIN/LOG Sweep Mode
  • Gate Controlled Voltage (GCV) Output for Synchronisation

GFG-8255A Includes:
  • User manual x 1
  • Power cord x 1
  • GTL-101 x 2
       Test Lead


  Description

The 5MHZ GFG-8255A is one of the most feature rich function generators in the GFG-8200 range.

It is embedded with standard functions such as TTL/CMOS/Ramp output, External Voltage Controlled Frequency (VCF), as well as a built-in 6-digit counter.

The GFG-8255A is a robust instrument with Logarithmic, Linear Sweep, Generator Control Voltage (GCV) output and AM/FM modulation.

All these integrated and user-friendly functions of the GFG-8255A are made to accommodate a vast number of applications.


  Models, Options, & Accessories


Model Description List Price Sale Price
GFG-8255A Function Generator - 5MHz w/ Ext.counter, sweep, AM/FM $399.00
$359.10 


  Specifications

Main Output
Frequency Range 0.5Hz ~ 5MHz in 7 ranges
Amplitude > 10Vpp (into 50W load)
Impedance 50W ±10%
Attenuator -20dB ±1dB x 2
DC Offset <-5V ~ >+5V (into 50W load)
Duty Control 80% : 20% : 80% to 1MHz continually variable
Display 6 digit LED display
Sine Wave
Distortion £1%, 0.5Hz ~ 100kHz THD £ -30dB fundamental in all ranges (specification applied from MAX to 1/10 level)
Flatness £0.3dB, below 500kHz
Triangle Wave
Linearity ³98% 0.5Hz to 100kHz
³95% 100kHz to 5MHz
Square Wave
Symmetry ±2% 1Hz ~ 100kHz
Rise/Fall Time £50ns at maximum output (into 50W load)
CMOS Output
Level 4Vpp ±1Vpp ~ 14.5Vpp ±0.5Vpp adjustable
Rise/Fall Time £120ns
TTL Output
Level ³3Vpp
Fan Out 20 TTL Loads
Rise/Fall Time £25ns
VCF
Input Voltage 0V ~ 10V ±1V (100:1)
Input Impedance 10kW ±10%
GCV
Output Voltage To set the voltage between 0V ~ 2V as per different frequency
Sweep Operation
Sweep/Manual Switch selectable
Sweep Rate 100:1 ratio maximum adjustable
Sweep Time 0.5s ~ 30s adjustable
Sweep Mode Lin/Log switch selectable
Amplitude Modulation
Depth 0 ~ 100%
MOD Frequency 400Hz (INT), DC ~ 1MHz (EXT)
Carrier Bandwidth 100Hz ~ 5MHz (-3dB)
EXT Sensitivity £10Vpp for 100% modulation
Frequency Modulation
Deviation 0 ~ ±5%
MOD Frequency 400Hz (INT), DC ~ 20kHz (EXT)
EXT Sensitivity £10Vpp for 10% modulation
Frequency Counter
INT/EXT Switch selectable
Range 0.5Hz to 5MHz (EXT 5Hz ~ 150MHz)
Accuracy Time base accuracy ±1 count
Time Base ±20ppm (23°C ±5°C) after 30 minutes warm up
Resolution Maximum resolution is 100nHz for 1Hz and 1Hz for 100MHz
Input Impedance 1MW // 150pF
Sensitivity £35mVrms (5Hz ~ 100MHz)
£45mVrms (100MHz ~ 150MHz)
Other Details
Power Source AC 115V/230V ±15%, 50/60Hz
Dimensions 251mm (w) x 91mm (h) x 291mm (d)
Weight 2.4kg approx



 

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