Digital Storage Oscilloscope
November 11th, 2009
Digital storage oscilloscope vertical resolution?
Anyone know the following specification about the vertical resolution 8 bits means? on the performance of a digital storage oscilloscope? Can someone explain it to me?
Vertical Resolution and Accuracy
The resolution and accuracy of an oscilloscope can affect measurements greatly, so it’s important to understand these limitations. An oscilloscope with an 8-bit analog-to-digital converter (ADC) has 28 (256) levels available while a 16-bit ADC has 216 (65536) levels. Thus, a 16-bit oscilloscope has 256 times more resolution than an 8-bit oscilloscope. Since only finite levels are available to represent the signal, there is a quantization error of 1 least significant bit (LSB). To find the minimum detectable voltage change (code width), divide the input range by the number of levels. Figure 1 depicts a 16-bit oscilloscope digitizing an 8 Vpp square wave with a 100 mV ripple voltage. In this case, the oscilloscope’s code width is (10/65536) 150 uV which allows it to produce a good representation of both the large and small signals. An 8-bit oscilloscope’s code width would be only (10/256) 39 mV, so it could not show the 100 mV component adequately. Changing the input range setting to 250 mVpp would improve the performance, reducing the code width to (0.25/256) 1 mV.
The dynamic range of an oscilloscope refers to how well the instrument can detect small signals in the presence of large signals and is expressed in decibels (dB). It is limited by the quantization error and all other noise sources such as background noise, distortion, spurious signals, etc. The dynamic range of an oscilloscope refers to how well the instrument can detect small signals in the presence of large signals and is expressed in decibels (dB). It is limited by the quantization error and all other noise sources such as background noise, distortion, spurious signals, etc. The equation for computing the dynamic range is:
Vmax is the maximum voltage that must be acquired and Vres is the minimum resolution that can be seen. A good rule of thumb is that every bit of resolution equals 6 dB of dynamic range. An 8-bit instrument’s theoretical maximum dynamic range is 48 dB, but it is significantly less once all limitations are considered.
Accuracy refers to the oscilloscope’s ability to represent the true value of a signal. An oscilloscope with high resolution, does not necessarily translate into giving an accurate result. Accuracy and resolution are related though, because the achievable accuracy of an instrument is limited by the resolution of the ADC.
The factors that reduce the accuracy of an oscilloscope can be mostly lumped into high- and low-frequency errors. Noise is generally the cause of high-frequency errors, while low-frequency errors are caused by drift stemming from temperature, ageing, bias currents, etc. High-frequency errors can usually be removed by oversampling and averaging. Low-frequency errors often require the calibration of the instrument, either internally or through a factory calibration.
Reference:
http://tinyurl.com/4nssc6
EEVblog #13 Part 1 of 2 – Digital storage Oscilloscope Tutorial
|
|
Leader Model 3100A Digital Storage Oscilloscope 100MHz $110.00 |
|
|
Agilent HP DSO6054A 500 MHz 4 Channel Digital Storage Oscilloscope $10,395.00 |
|
|
Owon PDS5022S Dual Channel Color Digital Storage Oscilloscope $212.50 |
|
|
TEKTRONIX 2430 DIGITAL STORAGE OSCILLOSCOPE VERY NICE CONDITION 30 DAY RTRN WRTY $675.95 |
|
|
2 Channel PC Computer Digital Storage USB Oscilloscope $28.50 |
|
|
Rigol Digital Storage Oscilloscope DS1102E 100MHz 2 Chennal OZ Seller $525.00 |
|
|
Hantek Digital Storage Oscilloscope DSO5202B 200M 1Gs/S $582.88 |
|
|
New portable DIGITAL STORAGE OSCILLOSCOPE 25MHz 2 CHs $593.99 |
|
|
New HAND HELD DIGITAL STORAGE OSCILLOSCOPE HDS1022 20M $512.49 |
|
|
UTD2025C Digital Storage Oscilloscope 25Mhz DSO $379.99 |
|
|
UTD2102CEL digital storage oscilloscope 100 MHZ 1 G sampling rate $418.00 |
|
|
Hantek 200Mhz Digital Storage Oscilloscope $499.00 |
|
|
Tektronics Digital Storage Oscilloscope 2211 w/ manual $475.00 |
|
|
Tektronix TDS2000C Series Digital Storage Oscilloscopes User Manual $29.99 |
|
|
Tenma Easy Scope 20 ~ Digital Storage Oscilloscope Portable ~ Handheld 72-6646 $199.00 |
|
|
LeCroy WaveMaster & DDA-5005 Digital Storage Oscilloscope Operator’s Manual $4.99 |
|
|
TEKTRONIX 2230 100MHz 2 CHANNEL DIGITAL STORAGE OSCILLOSCOPE $275.00 |
|
|
TEKTRONIX 7633 100MHz DIGITAL STORAGE OSCILLOSCOPE 7A26 – 7B53A $275.00 |
|
|
16 Channel Synchronized PC Computer USB Digital Storage Oscilloscope $149.99 |
|
|
5 Channel PC Computer USB Digital Storage Oscilloscope $89.99 |
|
|
250MSa/s PC USB Digital Storage Oscilloscope DSO 2250 $289.00 |
|
|
GOULD 4030 DIGITAL STORAGE OSCILLOSCOPE 2CH 20MHz $188.00 |
|
|
Tektronix TDS 1012B Two channel digital storage oscilloscope 100MHz/1GS/s $800.00 |
|
|
Tektronix TDS460A 400 MHz, 4 Channel Digital Storage Oscilloscope $3,195.00 |
|
|
Tektronix TDS2014 100 MHz Digital Storage Scope, w/TDS2CMA, w/2 P3010 (New) $1,500.00 |
|
|
Tenma Easy Scope 20 ~ Digital Storage Oscilloscope Portable ~ Handheld 72-6646 $199.00 |
|
|
LeCroy LT322 500 MHz Color Digital Storage Oscilloscope $1,950.00 |
|
|
New portable DIGITAL STORAGE OSCILLOSCOPE 100MHz UT2102 $424.99 |
|
|
NATIONAL DIGITAL STORAGE OSCILLOSCOPE VP-5730A 50 $88.00 |
|
|
OWON SDS6062 Deep Memory Digital Storage Oscilloscope $399.00 |
|
|
HP 1727A STORAGE OSCILLOSCOPE 275MHz $188.00 |
|
|
Hantek DSO-2090 100MSa/s PC USB Digital Storage Oscilloscope 2CH $175.11 |
|
|
PC 200MS/s 200MHz USB digital storage oscilloscope 5200 $348.88 |
|
|
Tektronix 468 and 5441 Digital Storage Oscilloscope model 3 kart manual included $750.00 |
|
|
Elan USB pen-style DSO (Digital Storage Oscilloscope) $190.00 |
|
|
Owon PDS5022S 25 MHz Portable Dual Channel Digital Storage 100MS/s Oscilloscope $45.00 |
|
|
Tektronix 2201 Digital Storage Oscilloscope $34.00 |
|
|
250MSa/s PC Based USB Digital Storage Oscilloscope 2250 $289.99 |
|
|
New Hot 8″ Color LCD TFT OWON PDS8102T Digital Storage Oscilloscope 100MHz 1GS/s $413.00 |
|
|
Iwatsu DS-8812 100MHz 500MS/s 2-channel Portable Digital Storage Oscilloscope $127.50 |
|
|
LEADER DIGITAL STORAGE OSCILLOSCOPE LBO-5825 LBO5825 $1,000.00 |
|
|
250MSa/s PC Based USB Digital Storage Oscilloscope 2250 $279.99 |
|
|
250/500 ms/s dual channel digital storage oscilloscope pm3320A- pm3323 service m $125.00 |
|
|
HP Agilent 54645A Dual-Channel 100MHz Digital Storage Oscilloscope $599.99 |
|
|
ADS1202CML 200Mhz Digital Storage Oscilloscope 7″ LCD $985.00 |
|
|
Digital storage oscilloscope Owon PDS5022S, PDS PDS5022 $319.00 |
|
|
2 Channel PC Computer USB Digital Storage Oscilloscope $49.99 |
|
|
5 Channel PC Computer USB Digital Storage Oscilloscope $99.99 |
|
|
Mini Digital Storage Color Oscilloscope Handheld DSO203 $205.48 |
|
|
LECROY LC684DL 1.5GHz QUAD DIGITAL STORAGE OSCILLOSCOPE – NO RESERVE $960.00 |
|
|
Oscilloscope,P-3850 – 50MS/s, Digital Storage, 2 Channels $329.00 |
|
|
100MSa/s PC USB Digital Storage Oscilloscope DSO-2090 $199.49 |
|
|
New Atten ADS1102CML 100Mhz Digital Storage Oscilloscope 7″ LCD $555.00 |
|
|
ARM NANO DSO Portable Digital Storage Oscilloscope V1.6 $78.00 |
|
|
New HP 54645A Digital Storage Oscilloscope w/ Accessories $1,349.99 |
|
|
Handheld Hantek Digital Storage Oscilloscope DSO5202B 200MHz 1GSa/s SALE New $648.98 |
|
|
Handheld Hantek Digital Storage Oscilloscope DSO5102B 100MHz 1GSa/s SALE New $530.98 |
|
|
Handheld Hantek Digital Storage Oscilloscope DSO5062B 60MHz 1GSa/s SALE New $456.99 |
|
|
2 Channel PC Computer USB Digital Storage Oscilloscope $29.90 |
|
|
100MSa/s PC USB Digital Storage Oscilloscope DSO-2090 $199.49 |
|
|
150MSa/s PC USB Digital Storage Oscilloscope DSO-2150 $275.49 |
|
|
250MSa/s PC USB Digital Storage Oscilloscope DSO-2250 $379.99 |
|
|
Lab Handheld Hantek Digital Storage Oscilloscope DSO5202B 200MHz 1GSa/s SALE $646.98 |
|
|
Lab Handheld Hantek Digital Storage Oscilloscope DSO5102B 100MHz 1GSa/s SALE $526.98 |
|
|
Lab Handheld Hantek Digital Storage Oscilloscope DSO5062B 60MHz 1GSa/s SALE $455.98 |
|
|
Gould 4030 Digital Storage Oscilloscope $15.81 |
|
|
ARM Nano Digital Storage DSO 203 Pocket-sized Oscilloscope Mini Portable DSO203 $172.89 |
|
|
NEW Digital Storage Oscilloscopes – Hickman, Ian $66.94 |
|
|
100MSa/s PC USB Digital Storage Oscilloscope DSO-2090 $199.49 |
|
|
250MSa/s PC USB Digital Storage Oscilloscope DSO-2250 $379.99 |
|
|
ARM NANO DSO Portable Digital Storage Oscilloscope DIY $64.88 |
|
|
DSO ADS1062CML 6Mhz Digital Storage Oscilloscope 7″ LCD $429.99 |
|
|
OWON HDS1022 1022M Digital Storage Oscilloscope 20Mhz $599.99 |
|
|
OWON HDS1022M-N Digital Storage Oscilloscope 20Mhz NEW $599.99 |
|
|
Portable DSO HDS1022 M-N Digital Storage Oscilloscope $599.99 |
|
|
Tektronix TDS430A 400 MHz, Digital Storage Oscilloscope $1,250.00 |
|
|
Tektronix 465 Mod UC Dual Trace Portable Oscilloscope w/Digital Storage $195.00 |
|
|
UTD2025C Digital Storage Oscilloscope 25Mhz DSO $379.99 |
|
|
Gould OS4020 Digital Storage Oscilloscope $95.00 |
|
|
2 Channel PC Computer Digital Storage USB Oscilloscope New $21.99 |
|
|
ATTEN ADS1022C Storage Digital Oscilloscope 25MHz $195.00 |
|
|
ADS1102 DIGITAL STORAGE OSCILLOSCOPE 100MHz 500MS/s USB $439.99 |
|
|
ATTEN ADS1152CA Storage Digital Oscilloscope 150MHz $508.00 |
|
|
LeCroy LC574AL 1 GHz Color Digital Storage Oscilloscope $2,950.00 |
|
|
BK PRECISION DIGITAL STORAGE OSCILLOSCOPE 2522A $79.99 |
|
|
DSO UT2202 DIGITAL STORAGE OSCILLOSCOPE 200Mhz 500Ms $819.99 |
|
|
Rigol Oscilloscope 50MHz Dual CH 2 Channels DS1052E NEW Portable Digital Storage $585.00 |
|
|
TEKTRONIX DSA-601 DIGITAL STORAGE ANALYZER WITH 2 PLUG-INS $290.00 |
|
|
Tektronix TDS6604 Digital Storage Oscilloscope 6GHz – 20GS/s $10,059.22 |
|
|
GOULD DIGITAL STORAGE OSCILLOSCOPE OS 4000 $299.00 |
|
|
ARM DSO201 Portable Pocket-sized Nano Handheld Digital Storage Oscilloscope ahn $10.50 |
|
|
New SDS6062 Deep Memory Digital Storage Oscilloscope 60MH 8″LCD $370.00 |
|
|
New SDS8102 Memory Digital Storage Oscilloscope 100MH 8″LCD 2G/S $615.00 |
|
|
ATTEN ADS1022C Digital Storage Oscilloscope 25MHz 50Msa $279.00 |
|
|
New Handheld HDS1022M-N Digital Storage Oscilloscope 20Mhz $530.00 |
|
|
New Handheld HDS2062M-N Digital Storage Oscilloscope 60Mhz $610.00 |
|
|
New Handheld HDS3102M-N Digital Storage Oscilloscope 100Mhz $800.00 |
|
|
New Handheld HDS1021M Digital Storage Oscilloscope 20Mhz $340.00 |
|
|
2 Channel PC Computer Digital Storage USB Oscilloscope US stock new 60mA 5V $29.99 |
|
|
New Handheld HDS1022M Digital Storage Oscilloscope 20Mhz $530.00 |
|
|
Oscilloscope $105.14 Oscilloscope. Clipping (audio), Eye pattern, Glitch, Heathkit, Orders of magnitude (frequency), Phonodeik, Tennis for Two, Test probe, Timedomain reflectometry, Runt pulse, Vectorscope, Waveform monitor, Electronic test equipment, Voltage, Waveform, Spectrum analyzer, Electrocardiography, Cathode ray tube, Analogtodigital converter, Digital signal processor, Personal computer. Author: Miller, Frederic P./ Vandome, Agnes F./ McBrewster, John Binding Type: Paperback Number of Pages: 140 Publication Date: 2009/10/11 Language: English Dimensions: 5.98 x 9.01 x 0.32 inches |
|
|
HP Agilent 54120A 20GHz Digital Oscilloscope Main Frame HP54120A $1155.05 HP Agilent 54120A 20GHz Digital Oscilloscope Main Frame HP54120A |
|
|
iMSO-104 iPad Oscilloscope $299.99 iMSO-104 is the first mixed signal oscilloscope designed specifically for the iPhone, iPod touch, and iPad. It is intuitive and easy to use, which is why it’s the preferred scope for the next generation of inventors. (The kind of inventors we sometimes hire here at ThinkGeek.) Intuitive hand gestures are used to navigate: Trigger Level – Setting the analog trigger level is as easy as touching the right side of the screen and swiping either up or down. Zooming – Changing the vertical & horizontal scales can be done by moving two fingers away from each other. To zoom out, simply pinch the screen moving two fingers toward each other. Repositioning Channels – Both the analog and digital channels are also easy to reposition. Touch and swipe the desired channel to any position on the screen to customize your display. But don’t take our word for it. Download iMSO in the App Store and test drive the interface for free! Oscium is making test equipment more intuitive so that the inventor can spend more time debugging than fumbling with the test equipment interface. And less time wasted fumbling with crappy test equipment equals more awesome inventions. Product Specifications iMSO-104 Mixed Signal Oscilloscope Hardware Stats for use with iPad: Display: 9.7″ Resolution: 1024×768 Analog: 1 Channel, 8 bit Analog Probe: 100 MHz (1x & 10x selectable), removable with SMB Digital: 4 Digital Probe: 4 bits, 1 Grid, 0.100″ connectors with removable SMD Grabbers Analog Bandwidth: 5 MHz Max Sample Rate 12 MSPS Sample Depth: 240 pts Horizontal Sensitivity: 2uS/div-1S/div Horizontal Position: Adjustable Trigger Position: Adjustable Vertical Sensitivity: 50mV/div to 2v/div (1x), 500mV/div to 20v/div (10x) Vertical Position: Adjustable Max Digital Input Voltage: -8v to +13v (1x), -40v to +40v (10x) Coupling: AC or DC Trigger Modes: Auto/Normal/Single/Stop Trigger Types: Analog, Digital (A, A&B, A B, A->B) Live Measurements: 6 Measurement Types: Frequency, Period, Min, Max, Mean, Peak to Peak, RMS, Positive Duty Cycle, Negative Duty Cycle, Positive Pulse Width, Negative Pulse Width, Cycle Mean, Cycle RMS, Rise Time, Fall Time Features: Screen Capture -> Email, Demo mode (analog), Horizontal/Vertical Cursor Measurements, Reference Capture, Delay (always on) ~99.99s max, Holdoff ~99.99s max, FFT & Data logging Screwdriver for Analog Waveform Compensation Adjustment Analog tip covers (2 pieces) |
|
|
1.5 Digital Photo Keychain $29.99 You probably might be accustomed to using a key chain. But have you ever thought of using a digital keychain? If not, this would be the right time! HandStands has introduced a new digital photo keychain, which allows you to take a look at your precious moments with family or friends, whenever and wherever you want |
|
|
Q:Electronics 3.5 Digital Photo Album/Frame $69.99 Show off your pictures to your friends and family with the brilliant, Ultra-Portable Digital Photo Album by OVO. With 16.7 Million display colors, the OVO Picture Viewer will dazzle your friends with the picture quality of your digital photos |
|
|
Digital Kitchen Scale $29.99 Counting calories, Avoiding carbohydrates, Experiencing special dietary needs, Watching what you eat doesnt need to be a chore. Let the new EC601-Plus Diet and Nutrition Scale accurately count your intake of Calories, Salt or Sodium, Protein, Fat, Carbohydrates, Fiber, and Cholesterol |
|
|
Using the Oscilloscope by Iddings, Ray Edition ILL, 1 $45.49 Using the Oscilloscope by Iddings, Ray |
|
|
Compact Digital Camera Case with Storage $8.55 Compact Digital Camera Case with Storage |
|
|
Cyber Gel Squeeze Ball $4.99 Consumer electronic equipment are necessity of life. Comfort and relax your life with electronic appliances. Capture your memories in Digital Video Camera. |
|
|
ToCAD Digital Media Storage $5.99 Holds up to 4 Smart Media Cards. Smart Media Card Clamshell DMSP-SM4 Digital Media Storage Memory Card Case Polypropylene ToCAD Tocad America, Inc www.tocad.com |
|
|
TOCAD / ToCAD Digital Media Storage / DMSP-SD4 $18.9 TOCAD – ToCAD Digital Media Storage – DMSP-SD4 |
|
|
ToCAD Digital Media Storage – Clamshell – Polypropylene $6.25 ToCAD Digital Media Storage – Clamshell – Polypropylene |
|
|
ToCAD Digital Media Storage – Clamshell – Plastic $6.25 ToCAD Digital Media Storage – Clamshell – Plastic |
|
|
Oscilloscope handbook $10.15 This book is in Good Used condition |
|
|
Using the Oscilloscope $129.68 No Synopsis Available |
|
|
Digital Storage Oscilloscopes $62.95 Digital storage oscilloscopes have long since completely supplanted analog storage oscilloscopes and have reached a degree of sophistication and performance which enable them to rival the most advanced real time oscilloscopes. In this comprehensive handbook, which provides a practical vade mecum for the engineer, Ian Hickman describes how they work and how to use them to best advantage. A wide range of models is available. This book includes a guide to all makes and models and will be best kept beside the instrument for instant reference. It will also be a most helpful guide to the subject for students and trainees. Ian Hickman is an experienced designer and author of best-selling titles including ‘Oscilloscopes: How to Use Them, How They Work’, Newnes Practical Radio Frequency Handbook’, ‘Analog Electronics’ and ‘Analog Circuits Cookbook’. |
|
|
Tocad America Digital Media Storage. Each $9.24 Manufacturer: Tocad America. Each. Product Type: Hard case for CompactFlash card Supported Media Qty: 4 memory cards Customers also search for: Discount ToCAD Digital Media Storage , Buy ToCAD Digital Media Storage , Wholesale ToCAD Digital Media Storage |
|
|
Ultra Compact Camera with Storage – for digital photo camera $7 Case Logic Ultra Compact Camera Case with Storage – Case for digital photo camera – dobby nylon – black |
|
|
Digital Storage in Consumer Electronics $62.95 Consumer electronics engineers, technicians, and managers, embedded engineers, system engineers, product designers & developers, network engineers and managers, programmers, marketing and sales personnel, and providers of content to electronic device end users * Presents best practices for selecting, integrating, and using storage devices to achieve higher performance, greater reliability and lower cost * Teardown photos provide rare visuals of the “guts” of the devices discussed * Covers hot topics including flash memory, DVRs, Apple iPods, home networks, and automotive electronics, from basic layouts to standards, advanced features, and exciting growth opportunities |
|
|
Injectronics INJ9240IR The CJ4 Enhanced Data Pack OBD CAN Scantool and Oscilloscope with Enhanced Applications $1337.7 The CJ4 Pro Pack (package 9240IR) is a handheld scantool ready to retrieve enhanced diagnostic information from GM Ford Chrysler Toyota Nissan Volkswagen and more. The CJ4 is a TOP 20 award winner multifunctional diagnostic tool with scanning and labscope functions. OBDII Generic scanning. Enhanced scanner. Two channels automotive labscope. Real time PC based OBDII scanning (ScanPC). Communications USB Serial and optional Bluetooth. Key reprogramming in selected vehicles. Expansion port. Mass storage SD card. Screenshot capture. Prints OBDII diagnostics reports. |
|
|
CTA Digital PS3-GDS Media Storage Rack $16.99 1 lb 12 x CD 12.50″ Height x 4.75″ Width x 7.25″ Length Declined slots for stability of games Sony PlayStation 3 Game CTA Digital CTA Digital, Inc Disc Storage Media Storage Rack PS3-GDS PS3-GDS Game Disc Stand www.ctadigital.com |