At this time, Tektronix, i.e., Tek, releases its high-performance oscilloscope: The 7 Sequence digital phosphor oscilloscope (DPO) (Determine 1).
Determine 1 The 7 Sequence DPO is engineered for a low SNR, ENOB, throughput, and user-friendly touchscreen interface. Supply: Tektronix
In a dialog with Tektronix’s Tim Bieber, Principal Product Planner, described the motivation for the brand new collection, “Each 10 to fifteen years, we’ve to replatform devices as a result of elements get previous and the know-how strikes ahead.” This scope is a direct response to the demand after conjoint evaluation, or market analysis that Tek has achieved over time with their established buyer base.
A user-friendly, high-performance Tek scope
The 7 collection DPO oscilloscope is the high-performance model of the two via 6 collection of MSOs, the place every collection is optimized for various efficiency capabilities and worth factors (Determine 2). The unifying issue throughout this complete portfolio is the consumer interface (UI) and TekScope PC evaluation software program developed over a decade in the past that enables for distant entry to the benchtop instrument in addition to offline evaluation.
Determine 2 The two via 7 Sequence of Tektronix scopes, all utilizing the identical UI and evaluation software program. Supply: Tektronix
“There are prospects that need the uncooked information and don’t do something with it, however there are different prospects that want pretty complicated measurements,” stated Bieber when highlighting the significance of the evaluation software program piece of the fashionable oscilloscope puzzle, “For instance, PCIe’s newest era electrical spec is about 1000 pages lengthy and there’s a pair chapters that undergo all of the measurements. Only a few prospects will wish to go and develop all these measurements, so they appear to the scope vendor to develop that, and we’ve had a package deal that we’ve had for 20 years.”
Specs
Desk 1 provides a comparability of the brand new 7 Sequence DPO and the Tek DPO70000 oscilloscopes. The 7 Sequence DPO is a brand new type of scope, engineered for sign readability via a excessive ENOB and low noise flooring versus solely optimizing bandwidth. It makes use of “TekConnect” channels to supply an analog bandwidth starting from DC to 25 GHz.
DPO70000 collection specifically additionally provides an Asynchronous Time Interleaving (ATI) structure, which gives a significantly bigger bandwidth by way of 1.85 mm connectors. Bieber clarified why ATI was not included within the 7 Sequence DPO, stating that for the present fashions, which vary from DC to 25 GHz, solely TekConnect channels are essential. He added that future 7 Sequence fashions will incorporate increased bandwidth connectors, reminiscent of 1.85 mm connectors.
|
7 Sequence DPO |
DPO70000 |
||
|
Channel sort |
TekConnect channels |
TekConnect channels |
ATI channels |
|
Variety of channels |
4 analog |
2 to eight analog |
1 to 2 analog |
|
ADC |
10-bit |
8-bit |
8-bit |
|
ENOB (500 mV full scale, sign 90% of full scale) |
7.5 bits at 8 GHz to six.5 bits at 25 GHz |
5.1 bits at 8 MHz and 4.8 bits at 25 GHz (for 33 GHz, 100 GS/s) |
4.9 bits at ~8 GHz and 4.6 bits at ~25 GHz (for 70 GHz, 200 GS/s ATI channel) |
|
Analog bandwidth |
8 GHz to 25 GHz (buyer upgradeable) |
13 to 33 GHz |
50 to 70 GHz |
|
Pattern price per channel |
125 GS/s on all 4 channels |
100 GS/s |
200 GS/s |
|
Report size |
500 Mpoints (as much as 2 Gpoints choice) |
62.5 Mpoints (as much as 1 Gpoints choice) |
62.5 Mpoints (as much as 1 Gpoints choice) |
|
Random noise |
0.10% of full scale to 0.23% of full scale, 500 mV full scale |
0.69% to 0.83% of full scale, 300 mV full scale |
0.43% to 0.71% of full scale, 500 mV full scale |
|
Intrinsic jitter |
60 fs (1 µs time length) and 70 fs (1 ms time length) |
100 fs (10 µs time length) |
65 fs (10 µs time length) |
|
Probe compatibility |
P7700 and P7600 Sequence TriMode |
P7500, 7600, and P7700 Sequence TriMode |
|
|
Connectivity |
LAN (10G Ethernet on SFP+ and 1000 Base-T on RJ45), USB 3.0 (7 complete), DisplayPort, HDMI |
PCIe, USB, Thunderbolt, HDMI, DisplayPort, and extra |
|
|
Display screen dimension |
15.6-inch HD touchscreen |
Not specified, however a lot smaller |
|
probe Desk 1: A comparability of the newly launched 7 collection DPO and the 70000 collection.
The enhancements within the 7 Sequence are primarily as a consequence of three key enhancements:
- Decrease studying curve with the TekScope consumer interface (UI) that will be acquainted to Tek prospects
- A quick throughput with a ten Gb Ethernet LAN SFP+ port (on the again of the oscilloscope)
- A clear sign path as a result of iterative developments, yielding two new ASICs, the Tek079 and Tek085, each designed and constructed in-house
The ten Gb Ethernet LAN SFP+ port (Determine 3) is good for brief information runs with a swift offload from the scope for parallel evaluation and off-scope processing. Moreover, the quicker CPU and on-board GPU will speed up information processing straight on the scope.
Determine 3 A picture of the again of the 7 Sequence exhibiting the ten Gb Ethernet LAN SFP+ port, which might settle for both an everyday RJ45, fiber optic, or direct-attach connection. Supply: Tektronix
The brand new ASICs
On the core of the oscilloscope are the upgrades to the customized preamplifier and ADC, as proven on the acquisition board in Determine 4. Every of those boards has two channels; the sign enters via the inputs to the preamp and ADC, and out to a big FPGA used for triggering and information storage.
Determine 4 The 7 Sequence DPO acquisition board exhibiting Tek085 preamplifiers linked on to the Tek079 ADC (black chips proven on the left-hand facet). Supply: Tektronix
“This chip (Tek85) has half the noise of the earlier preamp known as Tek61, which is in our 6 Sequence product,” stated Bieber. The Tek85 chip is fabricated utilizing GlobalFoundries’ 9HP SiGe course of. It makes use of “Quiet Channel” noise discount know-how, which basically performs the continual time linear equalization (CTLE) perform in {hardware} as a substitute of software program to push channel noise down with out rising the noise flooring (a consequence of implementing equalization strategies in software program). This, together with the 10-bit ADC, permits the oscilloscope to have a low vertical (random) noise with a excessive efficient variety of bits (ENOB).
Aalyia Shaukat, affiliate editor at EDN, holds a Bachelor’s diploma in electrical engineering and has labored within the design publishing business for almost ten years.
Associated Content material
- Oscilloscope articles by Artwork Pini
- Tektronix MDO4000 oscilloscopes go multifunction
- A brand new cost-optimized high-performance oscilloscope
- Constructing a low-cost, precision digital oscilloscope—Half 1
The publish Tektronix releases its new high-performance 7 Sequence oscilloscope appeared first on EDN.
