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The aLFA-C-ASIC product is a is a programmable interfacing ASIC for space borne infrared ROICs (read out ICs)
and other image sensors. It replaces much of the infrastructure found on classic front-end electronics (FEEs). It has the following features:
- Operate on minimally one single unregulated supply by the use of on-chip LDOs and Regulators,
- Can run on an external clock or on a crystal oscillator interface,
- The interface towards the outside world is SpaceWire,
- It has a fully programmable Sequencer towards the ROIC, with 8 levels of nesting and on the fly
reprogrammable, - It has 32 programmable level single ended digital outputs, which can be per two combined to 16 differential
outputs in CMOS, LVDS or CML format, - It has 16 programmable threshold single ended digital inputs, which can be per two be converted to a LVDS
or CML input, - It has an SPI interface towards the ROIC or image sensor,
- Analog acquisition happens over 32 (signals) +4 (references) analog channels with differential/single ended
analog inputs and 16 bit ADCs, - The SARADCs have 1.5 LSB INL, 1 LSB DNL, unsupervised-calibration and post-correction,
- The 32 100 kHz ADC channels can be parallelized or interleaved to proportionally faster ADCs, from 16
200kHz channels up to a single 3.2 MHz channel, - Al channels have programmable gain & offset, and programmable current biasing,
- Six on-board programmable LDOs (0-3.3V), of which 4 are available for external use,
- Six on-board programmable regulators (0-1.8V), of which 4 are available for external use,
- Resistance/voltage/current measurement capability on 6 pairs of measurement pins,
- 32 10bit programmable voltage sources,
- 8 7bit logarithmic programmable current sources with programmable polarity,
- TID, SEU, SEL tolerant,
- Operating temperature: 35K to 330K.