The SST Multi-G-Sample/s Switched Capacitor Array Waveform Recorder with Flexible Trigger and Picosecond-Level Timing Accuracy. Kleinfelder, SA; Chiem, E; Prakash, T

The design and performance of a multi-G-sample/s fully-synchronous analog transient waveform recorder I.C. ("SST") with fast and flexible trigger capabilities is presented. Containing 4 channels of 256 samples per channel and fabricated in a 0.25 {\mu}m CMOS process, it has a 1.9V input range on a 2.5V supply, achieves 12 bits of dynamic range, and uses ~160 mW while operating at 2 G-samples/s and full trigger speeds. With a standard 50 Ohm input source, the SST's analog input bandwidth is ~1.3 GHz within about +/-0.5 dB and reaches a -3 dB bandwidth of 1.5 GHz. The SST's internal sample clocks are generated synchronously via a shift register driven by an external LVDS oscillator, interleaved to double its speed (e.g., a 1 GHz clock yields 2 G-samples/s). It can operate over 6 orders of magnitude in sample rates (2 kHz to 2 GHz). Only three active control lines are necessary for operation: Reset, Start/Stop and Read-Clock. Each of the four channels integrates dual-threshold discrimination of signals with ~1 m...

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