My Account

Log in to Your Account

Not a member yet? It's FREE!

Join

Why Join? Gain access to exclusive pricing, rewards and more!

Member Pricing & Rewards active

Instek SFG-2004 4 Mhz DDS Function Generator

Name: Instek SFG-2004 4 Mhz DDS Function Generator
Brand: Instek
SKU: InstekSFG-2004
Price: 244.10 USD
Availability: InStock
Rating: 5.00 (3 reviews)

5 (3 Reviews) | Model: Instek SFG-2004

Compare

4MHz

DDS Technology and FPGA Chip Design
Frequency Range:0.1Hz~4MHz
High Frequency Accuracy : ± 20ppm
High Frequency Stability : ± 20ppm
Frequency Resolution :100mHz
Low Distortion Sine Wave:-55dBc,0.1Hz~200kHz
Front Panel Setting Save/Recall with 10 Groups of Setting Memories

View Product Details

List Price: $280.00

In Stock:

View Payment Options

Recommended for you

Accessories

Choose a Category

Adapter Kits
Function Generator / Frequency Counter Kits

for the Instek SFG-2004

Cal Test CT4103 Universal Adapter Kit

Catalog: CT4103

(9)

In Stock!

Add to Cart

Cal Test CT4036 Function Generator And Freq. Counter Accessory Kit

Catalog: CT4036

(8)

In Stock!

Add to Cart

Based on the Direct Digital Synthesized (DDS) technology and unique FPGA design, the SFG-2000/2100 Series Function Generators are built with exceptionally high performance far exceeding that of any conventional function generators at a very competitive price. Stable output frequency, low distortion, and fine frequency resolution are the most remarkable characteristics of this product series.

The SFG-2000/2100 Series include four members in each family at 4MHz, 7MHz, 10MHz and 20MHz bandwidth(perivd), The SFG-2100 Series have additional functions of Sweep, AM/FM modulation, and External Counter. As a result of the 20ppm stability level and output waveform accuracy, The SFG-2000/2100 Series well fit into a wide variety of applications, such as signal generator for experiment labs, reference signal for PLL (Phase Locked Loop), and calibration and adjustment source for electronic devices.

OUTPUT WAVEFORM

The SFG-2000/2100 Series provide Sine, Triangle and Square waveforms with DC offset and variable duty cycle at 20ppm frequency stability and accuracy. The low drift rate and -55dBc low sine wave distortion output significantly extend product application range in various market sectors.

The TTL/CMOS output is also available to fulfill various requirements. In addition to the basic functions, The SFG-2100 Series provide advanced functions such as AM/FM modulation, sweep mode, and Built-In Frequency Counter.

DDS FG VS. CONVENTIONAL FG

The SFG-2000/2100 Series generates signals by continuously delivering a series of sampling values from a sine waveform table (stored in RAM) to DAC (Digital to Analog Converter) for waveform construction. With a low pass filter circuit to filter out the harmonics of the DAC output and smooth the signal, the SFG-2000/2100 Series is able to provide a stable output with very low waveform distortion. This is very different from the way a conventional FG generates a signal. Since a conventional FG needs to obtain its signal by switching current sources between positive and negative directions all the time, the "Ringing" distortion occurs at the peak of the signal waveform where the switching is activated. This distortion is especially serious when the output amplitude is low. For the SFG-2000/2100 DDS FG, however, the waveform distortion remains low even when the output amplitude is at only 2mVpp.

Main
Frequency Range (For Sine, Square)	0.1Hz ~ 4MHz
Frequency Range (For Triangle)	0.1Hz ~ 1MHz
Resolution	0.1Hz
Stability	± 20ppm
Accuracy	± 20ppm
Aging	± 5ppm / year
Output Function	Sine, Square, Triangle
Amplitude Range	10Vpp (into 50Ω load)
Flatness (Sine wave relative to 1kHz)	<±0.3dB, 0.1Hz~1MHz; <±0.5dB, 1MHz~4 MHz; <± 2dB, 4MHz~10MHz
Impedance	50Ω ± 10%
Attenuator	-20dB ± 1dB x 2
DC Offset	< -5V ~ > +5V (into 50Ω load)
Duty Control Range	20% to 80% below 1MHz (Square wave only)
Resolution	1%
Display	9 digits LED display
Sine Wave
Harmonics Distortion	-55dBc, 0.1Hz~200kHz; -40dBc, 0.2MHz~4MHz; -30dBc, 4MHz~10MHz (Specification applied from MAX. to 1/10 level)
Triangle Wave
Linear	≥98%, 0.1Hz~100kHz; ≥95%, 0.1Hz~1MHz
Square Wave
Symmetry	±1% period +4ns to 0.1Hz~100Hz; Rise or Fall Time ≤25ns 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
Store / Recall Function
Size	10 groups of Setting memories
Misc
Power Source	AC 115V, 230V±15%, 50/60Hz
Accessories	Instruction Manual x 1, Power cord x 1, GTL-101 x 1
Dimensions & Weight	107(W)x266(H)x293(D) m/m; Approx. 3.1kg

Tech Specs

Generators / Counters/Function Generator Template
Frequency Maximum	4 MHz
Frequency Minimum	0.1 Hz
Functions	Sine, Square, Triangle
Max Amplitude Vpp @ 50 ohms	10 V
Arbitrary	No
Screen Type	LED Screen Type 9 digits LED display
Color Screen	No
Counter that displays frequency on screen.	No
Direct Digital Synthesis (DDS)	Yes
PC Based	No
Test Equipment General Attributes
Unique Features	* Low Distortion Sine Wave : -55dBc, 0.1Hz ~ 200kHz * DDS Technology and FPGA Chip Design
Product Weight	3.1 LBS
Product Height	107 IN
Product Length	293 IN
Product Width	266 IN
Data Logging	No
Power Supply Voltage	120V/220V Universal
Shipping Height	6.75 IN
Shipping Length	15.00 IN
Shipping Width	13.00 IN
Other Information	Frequency Range (For Sine, Square): 0.1Hz ~ 4MHz Frequency Range (For Triangle): 0.1Hz ~ 1MHz Resolution: 0.1Hz Stability: ? 20ppm Accuracy: ? 20ppm Aging: ? 5ppm / year Output Function: Sine, Square, Triangle Amplitude Range: 10Vpp (into 50O load) Flatness (Sine wave relative to 1kHz): ?0.3dB, 0.1Hz~1MHz; ?0.5dB, 1MHz~4 MHz; ? 2dB, 4MHz~10MHz /td? Impedance: 50O ? 10% Attenuator: -20dB ? 1dB x 2 DC Offset: -5V ~ +5V (into 50O load) Duty Control Range: 20% to 80% below 1MHz (Square wave only) Resolution: 1% Display: 9 digits LED display Harmonics Distortion: -55dBc, 0.1Hz~200kHz; -40dBc, 0.2MHz~4MHz; -30dBc, 4MHz~10MHz(Specification applied from MAX. to 1/10 level) Linear: =98%, 0.1Hz~100kHz; =95%, 0.1Hz~1MHz Symmetry: ?1% period +4ns to 0.1Hz~100Hz; Rise or Fall Time=25ns at maximum output. (into 50O load) Level: 4Vpp?1Vpp~ 14.5Vpp?0.5Vpp adjustable; Rise or Fall Time; =120ns Level: =3Vpp; Fan Out; 20 TTL load; Rise or Fall Time; =25ns Size: 10 groups of Setting memories

5

Out of 5

Average Customer Review

Share your thoughts with other customers

Write a Review

Displaying all 3 reviews

Most Helpful First | Newest First

Recommend to a Friend

Instek SFG-2004

5.0

I was very pleased with this excellent function generator. It came highly recommended by a friend and I was very impressed with the accuracy of the stable frequency and very simple to set output frequency with buttons or with dial. I was impressed with the ease of use and it was put together with quality materials. Overall I was very satisfied with this product. I would highly recommend the product.

diana c on Apr 17, 2015

Recommend to a Friend

Not used for ordinary use

5.0

I bought this for an unusual use, it is recommended for Rife treatment for Lyme, and I ordered this on the recommendation of a Doug Coil machine builder. It has worked flawlessly since I bought it in 2011 -- I would highly recommend this unit. Absolutely no problems in using this piece of equipment.

Anonymous on Feb 20, 2014

Recommend to a Friend

A Very Happy Customer

5.0

I ordered my 4 MHz Generator for a really great price and it was shipped to me promptly! I recommend ordering from this company and I will not hesitate from ordering from them in the future!
Thank You!

Verified Purchase Lonnie Beers on Feb 02, 2014

Compare

Real people, here to help you.

Get Connected

Join the community and find out what we're up to, experience live product releases, webinars and more!

How Can We Help You?

Questions?

Log in to Your Account

Not a member yet? It's FREE!

Top Categories

Instek SFG-2004 4 Mhz DDS Function Generator

Recommended for you

Accessories

for the Instek SFG-2004

Cal Test CT4103 Universal Adapter Kit

Cal Test CT4036 Function Generator And Freq. Counter Accessory Kit

Tech Specs

Generators / Counters/Function Generator Template

Test Equipment General Attributes

5

Featured Review

We'd love to hear from you

Real people, here to help you.

Get Connected

My Account

Promotions & Offers

Resources

Company