New generation of Space grade Analogue ICs Nicolas Chantier

1. New generation of Space grade Analogue ICsNicolas Chantier AMICSA 2006 October 3rd

2. National’s Space Capabilities • Continuously Supplied ICs to the space industry since Space electronics exist. • Long TiD experience, including ELDRS guarantee at 10mrad/s. • German designed libraries of SEL immune CMOS cells to enable low power, high performance space worthy ICs. • Choice of Space grade packaged IC or Space grade die products. • Self funded R&D, roadmap execution and EU job creation through creation of value for Space customers.

3. National’s Analog Capabilities National’s analogue capabilities in Space applications : • High Speed Signal Path. • Telecommunication payloads. • Radar / Lidar for scientific missions. • Precision Signal Path. • Attitude and Orbit Control System • Travelling Wave Tube Amplifiers. • Power management and distribution units • Advanced CCD Analog Front Ends. • Push-broom optical remote sensing.

4. High Speed Signal Path • Objective : To enable significantly higher revenue per kg in orbit for satellite operators! Elimination of RF downconverters in L-Band payloads using ADCs with Ultra wide input bandwidth. Highest possible ENOB to minimize the ADC resolution to the minimum necessary nb of bits. Increased number of FDMA channels in Nyquist zone, thus increased revenue per kg for satellite operators. Advanced Space grade Package design to minimize lead inductance and resistance, matched impedance lines in signal path, planes on the supply rails to minimize noise induced by digital switching. Improved thermal characteristics.

5. ADC08D1000WG-QV5962-0520601VZA • 8-bit dual, 1 GSPS, low power, CMOS ADC • 8 bits output – 7.4bit ENOB at 500MHz input • DNL : +/- 0.15LSB • Bit Error Rate 10-18 • Interleave mode (2x sample rate) • 800mW/channel at 1GSPS from single 1.9V supply (3.5mW in power down) • Multiple ADC Synchronization capability • Fine adjustement of input full-scale range and offset. • Internal sample-and-hold function • Guaranteed no missing codes

6. ADC08D1000WG-QV5962-0520601VZA • Radiation tolerance solid – see reports. • Available in Military and Space level versions • Available January 2007 • Ceramic flat package with matched impedance lines, ground plane, supply plane.

7. ADC08D1000WG-QV5962-0520601VZA For more details see : - ADC08D1000 datasheet - Euro DesignCon 2004 paper « Unique 1.6GSPS CMOS 8-bit 1.8V ADC delivers 7.26ENOB past Nyquist » Robert Taft; Maria Rosaria Tursi, Chris Menkus; Valerie Pons; Paul McCormack

8. Package of ADC08D1000WG-QV

9. ADC14155 • 14 bit 155MSPS CMOS ADC • ENOB = 11.5 bits • Low power consumption = 940 mW • Dual supplies: 1.8V and 3.3V • Solid radiation tolerance • Available in Military and Space level versions • Available July 2007 • 48 pin cerquad package (with short straight leads)

10. Precision Signal PathLMP2012 • High Precision Rail to Rail Output Operational Amplifier • Complete cancellation of 1/f noise in amplifiers for DC and near-DC signals such as AOCS sensors, thermistors. • Guaranteed low offset drift over time <0.006µV/Month; <2.5µV over lifetime. • Guaranteed low offset drift over temperature. • Power consumption : 930µA

11. Precision strain gauge Av = 60dB CMRR > 108dB (with resistor tolerance given below) Supply current = 930µA / Amplifier ½ LMP2012 + - ½ LMP2012 + - R1 R1 R2 R2 10k, 0.1% 2k, 1% 2k, 1% 10k, 0.1% R3 20Ω

12. Precision Signal PathADC124S101 • 4 Channel, 1MSPS, 12 bit ADC • 12 bits up to 1MSPS. • 4 : 1 input MUX. • 2.2 mW when sampling, 0.14µW in stand by. • High Z outputs and CS function for MUX. • Light weight 10 pin device.

13. Bringing A to D conversion closer to the sensors ADC Sampling Clock Serial Data IN (MUX select) Serial Data OUT Logic decoder 4 N analog lines from sensors Pressure IR bolometers Thermistors etc… x ADC CS lines ADC Selection ADC124S101 Large Nb of analog sensor Measurement are digitised early in the signal path. 4:1 MUX and serial output minimises ADC pin count and thus nb of interconnects ADC addressing through through CS and decoder minimises consumption No compromise on precision when Combined with LMP2012. ADC124S101

14. CCD Analog Front Ends for Pushbroom Remote Sensing • National’s technology enabled a very high number of scanned pages per minute at any resolution in heavy duty copiers. • This intellectual property is now offered to Space customers who need to achieve superior pixel rates. • Objective : To double the current levels of pixel rate in Pushbroom systems, allowing for significant increase of picture resolution.

15. CCD Analog Front Ends for Pushbroom Remote Sensing ASIC Board CCD Board CMOS Timing Current Gen. AFE Discrete build CCD ASIC Analog Data LVDS clk 1 die AFE+TG Future Gen. CCD ASIC LVDS Data • Integrates AFE and CCD Timing Generator. • Enables Higher Page Rates, and faster CCDs. • Reduces EMI Due to CMOS Clocks • Allows the AFE to move closeer to the CCD sensor.

16. CCD Analog Front Ends for Pushbroom Remote Sensing • National’s AFE integrates : • Correlated Double Sampling. • Sample and Hold • CCD input biasing • 3 channels; multiple operation modes. • For each channel : • 14 bit ADC for each channel. • 9bit PGA • Black level offset DAC. • Fully programmable timing generator. Preliminary datasheets available to customers under Non-disclosure agreement.

17. Questions ?