An analog memory integrated circuit for waveform sampling up to 900 MHz

Conference · Mon Aug 01 00:00:00 EDT 1994 · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:6815586

Haller, G M; Wooley, B A ^[1]

---

1. Stanford Univ., CA (United States)

The potential of switched-capacitor technology for acquiring analog signals in high-energy physics (HEP) applications has been demonstrated in a number of analog memory designs. The design and implementation of a switched-capacitor memory suitable for capturing high-speed analog waveforms is described. Highlights of the presented circuit are a 900 MHz sampling frequency (generated on chip), input signal independent cell pedestal and sampling instances, and cell gains that are insensitive to component sizes. A two-channel version of the memory with 32 cells for each channel has been integrate in a 2-[mu]m complementary metal oxide semiconductor (CMOS) process with polysilicon-to-polysilicon capacitors. The measured rms cell response variation in a channel after cell pedestal subtraction is less than 0.3 mV across the full input signal range. The cell-to-cell gain matching is better than 0.01% rms, and the nonlinearity is less than 0.03% for a 2.5-V input range. The dynamic range of the memory exceeds 13 bits, and the peak signal-to-(noise + distortion) ratio for a 21.4 MHz sine wave sampled at 900 MHz is 59 dB.

• DOE Contract Number: AC03-76SF00515
• OSTI ID: 6815586
• Report Number(s): CONF-931051-; CODEN: IETNAE; TRN: 94-023097
• Journal Information: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States), Vol. 41:4Pt1; Conference: NSS-MIC '93: nuclear science symposium and medical imaging conference, San Francisco, CA (United States), 30 Oct - 6 Nov 1993; ISSN 0018-9499
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
43 PARTICLE ACCELERATORS
ACCELERATORS
BEAM MONITORS
RECORDING SYSTEMS
RADIATION DETECTORS
DESIGN
ANALOG SYSTEMS
BEAM POSITION
DATA ACQUISITION
ELECTRON BEAMS
MEMORY DEVICES
SIGNAL-TO-NOISE RATIO
BEAMS
LEPTON BEAMS
MEASURING INSTRUMENTS
MONITORS
PARTICLE BEAMS
440104* - Radiation Instrumentation- High Energy Physics Instrumentation
430300 - Particle Accelerators- Auxiliaries & Components