1. September 1st 2008 - e2v AMICSA A NEW GENERATION OF RAD HARDENED ADC TO SERVE THE SPACE INDUSTRY International Workshop on Analog and Mixed Signal Integrated Circuits for Space Applications (AMICSA 2008) JP Amblard ( jean-philippe.amblard@e2v.com )jean-philippe.amblard@e2v.com (+ e2v design & project teams) September 1st 2008

2. AMICSA 2008 e2v 2 Presentation Plan  A few words about e2v  Space Context  ADC Specification & Challenges  Radiation & Reliability  ADC Architecture overview  Packaging  Project summary

3. AMICSA 2008 e2v 3 A few words about e2v… Operations  Headquarter Chelmsford, England  Additional design, development & manufacturing facilities in Corcelles (Switzerland), Grenoble (France), Lincoln (UK), High Wycombe (UK) and assembly facilities in Mexico.  1800 employees 600 engineers and scientists  Sales & support offices in the USA, Germany, France, Hong Kong  Global network of distributors and representatives Chelmsford Lincoln High Wycombe Grenoble Corcelles

4. AMICSA 2008 e2v 4 A few words about e2v… Business overview  Electronic tubes  Thyratrons, magnetrons and compact modulators for medical radiotherapy  IOTs, Inductive Output Tubes + the Energy Saving IOT (ESCIOT®). and thyratrons for UHF digital television transmitters  Gridded tubes & thyratrons for Industrial heat treatment, welding & industrial laser drivers  Magnetrons (and receiver, receiver/protector systems) for commercial, defence and marine radar  TWTs (Traveling Wave Tubes) for defence electronic countermeasures  TWT based satellite amplifiers  Semiconductors and sensors  Broadband data converters & microprocessors for avionics, Space, Defense, Telecom, Instrumentation  CCDs and CMOS sensors and cameras for space and astronomical, medical, scientific, defence (incl. L3Vision™) and industrial process control  Mixed signal ASICs for Industrial and Automotive Sensors  Thermal imaging cameras for fire and rescue  Microwave alarms, diodes, VCOs, air quality sensors, image sensors and custom ICs for automotive systems  Gas sensors for environmental safety  X Ray detectors for x-ray spectroscopy

5. AMICSA 2008 e2v 5 Fast, Low power Broadband ADC’s in Space context  Most of the telecommunication payloads will be digitally processed  Satellite telecommunications will make use of complex multi-beam antennas carrying larger useful bandwidths  Optimizing the use of scarce spectrum is mandatory  Best operational flexibility is needed by operators and end-customers for all sort of new services  For systems designed in a tough competitive context, the European Space industry requires advanced components in terms of functional performance, low power consumption and radiation-hardening  Fast, Low Power, Broadband ADCs are key enabling strategic components

6. AMICSA 2008 e2v 6 Strategic Low-Power Broadband 10b/1.5G ADC developed by e2v  e2v has been awarded a major contract by the European Space Agency (ESA) to develop a strategic component, 10-bit 1.5 Gsps Low Power ADC  e2v track records in “State of the Art” ADC’s (example)  10b 2.2Gsps World’s fastest single core ADC  12b 500M ADC EE Times Ultimate Analog Product Award 2007  Quad 8b 5G versatile Quadruple ADC

7. AMICSA 2008 e2v 7 the Strategic Low-Power Broadband 10b/1.5G ADC developed by e2v  Key assets of the 10b 1.5GSps ADC:  superior linearity  wide analogue input bandwidth - operation up to LBand  very flat spectral response  Low Power  DMUX’ed output  European high speed fully bipolar SiGe technology  Space level reliability & radiation hardening to ensure operation under extreme conditions  Partnership with end-users TAS & EADS Astrium  The project team is at work for a winning solution

8. AMICSA 2008 e2v 8 the ADC 10b /1.5GSps Dynamic Performances Beyond specifications Parameter ESA Target Specification ConditionsComments /objectives e2v Physical bits10 Sampling rate1.5GSps Input bandwidth  1.5GHzObjective  3GHz to support L Band SFDR  60 dBFS 1 st Nyquist Excellent linearity over useful bandwidth Clock Related Spurs well below SFDR NPR  45 dB 1 st Nyquist ENOB  8.5 bit 1 st Nyquist Gain flatness  0.5dB  3.0 dB DC to 0.75GHz input >0.75 GHz - 1.5 GHz Very flat response over the full L Band, <0.5dB  1.5GHz/ <1dB  1.8GHz Analogue input1Vpp Full-Scale Differential trade-off ADC drivability & SNR Power consumption 1W (no L Band) 1:2 DMUX / LVDS output swing Power to be optimized for LBand Swing Adjust function to save power

9. AMICSA 2008 e2v 9 the ADC integrates relevant features for system manufacturers ADC gain adjustAdjustment in the range 0.9 to 1.1 Offset Error AdjustmentADC Offset can be tuned to middle code = 512 Sampling Delay adjust (SDA) to fine tune the sampling ADC aperture delay TAD around its nominal value Swing Adjust function reduce output swing when output transmission conditions are favourable - Save Power Digital output Demux option selectable 1:1 / 1:2 / 1:4 Unused ports powered off Testability Pattern generator Power supplies5.2V, 3,3V; 2,5V PackageCeramic CICGA 255 Qualification temperature range-55°C / +125°C

10. AMICSA 2008 e2v 10 Radiation & Reliability Main figures  ADC designed in B7HF200 SiGeC from Infineon derived from B7HF  fastest European technology (fT >200GHz)  excellent & reliable modelling for simulation of performances  proven reliability on existing ADC & current version of 10b/2.2G in B7HF200  Full bipolar design ensures the high level of radiation hardening  Key Target values Useful life tB20 years Early failure rate20 dpm / 1000h Radiation total dose100 Krad (Si) Latch up freeUp to 80 MeV-cm²/mg

11. AMICSA 2008 e2v 11 Architecture overview Folding/interpolation Low latency  Broadband ADC Architectures based on:  fast accurate front-end Track & Hold,  followed by fast settling Core ADCs featuring DC accuracy & low latency  T/H front-end stage is a critical part of ADC  it needs to feature the requested HF linearity and noise characteristics  determines ADC input bandwidth and band flatness  Low Power come from innovative architecture and fine optimization  All key points where e2v unique world-class design and system expertise in fast broadband accurate ADC’s are major assets

12. AMICSA 2008 e2v 12 ADC Packaging  Package for the ADC 10b/1.5GSps w/ DMUX 1:4  Baseline  Ceramic package CICGA  Size 21X21mm² / Pin count: 255  Optimized for ADC dynamic and thermal performances for Space applications  Minimal and predictable impact of package on ADC performances  Size in accordance with end-users needs  Compliant with Space level requirements  Package Modelling  extract models of the ADC package accesses, in particular the most critical ones, analogue input, clock input, data outputs  Thermal behaviour  ADC Layout division into elementary cells with estimated power consumption  Identification of the Hot Spots & critical temperature gradients, if any  Layout correction if necessary

13. AMICSA 2008 e2v 13 Summary of the 10b 1.5GSps ADC development project  Objective  to serve the Space industry with a state-of-the-art Broadband 10b/1.5GSps ADC  stay ahead competition as complex digitally processed payloads become more common place.  Key advantages of the ADC  High Dynamic Performances in full L band  Low power  Space level reliability  Radiation Hardened  European sourcing  Challenges for which e2v has key expertise  fine trade-offs between low power and high-end performances  anticipation of main matters  performance level over temperature range  Radiation  Reliability  Packaging  Timeframe  Prototypes in Q3/2009  Space Level Qualification 2010

14. AMICSA 2008 e2v 14 International Workshop on Analog and Mixed Signal Integrated Circuits for Space Applications (AMICSA 2008) Thank you for your attention Questions? jean-philippe.amblard@e2v.com