GW Instek GFG-8255A

Function Generator Frequency Range 0.5Hz ~ 5MHz

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Features
* Frequency Range: 0.3Hz ~ 3MHz (GFG-8215A/8216A/8217A/8219A)
* Frequency Range: 0.5Hz ~ 5MHz (GFG-8250A/8255A)
* Waveforms: Sine, Triangle, Square,Ramp, TTL and CMOS Output
* External Voltage Controlled Frequency (VCF) Function
* Two-Steps (-20dBx2) and Variable Attenuator
* Built-In 6 Digits Counter with INT/EXT Function up to 150MHz(Except GFG-8215A)
* INT/EXT AM/FM Modulation (GFG-8219A/8255A)
* GCV Output for Synchronization (GFG-8219A/8255A)

	GFG-8215A/8216A/8217A/8219A	GFG-8250A / 8255A
MAIN
Frequency Range	0.3Hz ~ 3MHz (7 Range)	0.5Hz ~ 5MHz (7 Range)
Amplitude	>10Vpp (into 50Ω load)
Impedance	50Ω±10%
Attenuator	-20dB±1dBx2
DC Offset	<-5V ~ >5V (into 50Ω load)
Duty Control	80% ~ 20%, maximum 1MHz (continuously adjustable)
Display	6 digits LED display *GFG-8215A does not have a display
Range Accuracy	±5%+1Hz (at 3 positions) *only for GFG-8215A
SINE WAVE
Distortion	< 1%, 0.3Hz ~ 200kHz	< 1%, 0.5Hz ~ 100kHz
THD (Total Harmonic Distortion)	< 35dB, below fundamental in all ranges, from Max to 1/10 level	< 30dB, below fundamental in all ranges, from Max to 1/10 level
Flatness	< 0.3dB, 0.3Hz ~ 300kHz < 0.5dB, 300kHz ~ 3MHz	< 0.3dB, below 500kHz < 1dB, below 5MHz
TRIANGLE WAVE
Linear	> 98%, 0.3Hz ~ 100kHz > 95%, 100kHz ~ 3MHz	> 98%, 0.5Hz ~ 100kHz > 95%, 100kHz ~ 5MHz
SQUARE WAVE
Symmetry	±2%, 0.3Hz ~ 100kHz	±2%, 1Hz ~ 100kHz
Rise or Fall Time	< 100nS at maximum output (into 50Ω load)	< 50nS at maximum output (into 50Ω load)
CMOS OUTPUT
Level	4Vpp±1Vpp ~ 14.5Vpp±0.5Vpp adjustable
Rise or Fall Time	< 120nS
TTL OUTPUT
Level	> 3Vpp
Fan Out	20 TTL load
Rise or Fall Time	< 25nS
VCF (Voltage Controlled Frequency)
Input Voltage	0V ~ 10V±1V (100 : 1)
Input Impedance	10kΩ±10%
GCV (Generator Controlled Voltage) (GFG-8219A/8255A)
Output Voltage	Sets the voltage between 0V ~ 2V according to the frequency
SWEEP OPERATION (GFG-8217A/8219A/8255A)
Sweep Selection	Switch selector
Sweep Rate	Maximum 100 : 1, adjustable
Sweep Time	0.5sec ~ 30sec, adjustable
Sweep Mode	Lin/Log switch selector
AMPLITUDE MODULATION (GFG-8219A/8255A)
Depth	0 ~ 100%
MOD. Frequency	400Hz (INT), DC ~ 1MHz(EXT)
Carrier BW	100Hz ~ 3MHz (-3dB)	100Hz ~ 5MHz (-3dB)
EXT Sensitivity	< 10Vpp for 100% modulation
FREQUENCY MODULATION (GFG-8219A/8255A)
Deviation	0 ~ ±5%
MOD. Frequency	400Hz (INT), DC ~ 20kHz(EXT)
EXT. Sensitivity	< 10Vpp for 10% modulation
FREQUENCY COUNTER (GFG-8216A/8217A/8219A/8250A/8255A)
INT/EXT	Switch selector
Range	0.3Hz ~ 3MHz (5Hz ~ 150MHz EXT)	0.5Hz ~ 5MHz (5Hz ~ 150MHz EXT)
Accuracy	Time base accuracy±1 count
Time Base	±20ppm(23° C ± 5° C)after 30 minutes warm up
Resolution	100nHz for 1Hz, 1Hz for 100MHz
Input Impedance	1MΩ // 150pF
Sensitivity	< 35mVrms (5Hz ~ 100MHz) < 45mVrms (100MHz ~ 150MHz)
POWER SOURCE
	AC115V/230V±15%, 50 / 60Hz
DIMENSIONS & WEIGHT
	251(W) x 91(H) x 291(D)mm Approx. 2.0 kg(GFG-8215A) Approx. 2.1 kg(GFG-8216A) Approx. 2.15kg(GFG-8217A) Approx. 2.2 kg(GFG-8219A)	251(W) x 91(H) x 291(D)mm Approx. 2.3 kg (GFG-8250A) Approx. 2.4 kg (GFG-8255A)