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

Conference · Wed Dec 01 00:00:00 EST 1993

OSTI ID:10136576

Haller, G M ^[1]; Wooley, B A ^[2]

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1. Stanford Linear Accelerator Center, Menlo Park, CA (United States)
2. Stanford Univ., CA (United States). Center for Integrated Systems

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 pedestals 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 integrated in a 2-{mu}m complementary metal oxide semiconductor (CMOS) process with poly-to-poly capacitors. The measured rms cel pedestal variation in a channel after baseline 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.

• Research Organization: Stanford Linear Accelerator Center, Menlo Park, CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 10136576
• Report Number(s): SLAC-PUB-6402; CONF-931107-36; ON: DE94009020; TRN: 94:007466
• Resource Relation: Conference: 1993 IEEE nuclear science symposium and medical imaging conference,San Francisco, CA (United States),2-5 Nov 1993; Other Information: PBD: Dec 1993
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
42 ENGINEERING
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
WAVE FORMS
DATA ACQUISITION SYSTEMS
MEMORY DEVICES
INTEGRATED CIRCUITS
MOS TRANSISTORS
430303
426000
990200
EXPERIMENTAL FACILITIES AND EQUIPMENT
COMPONENTS
ELECTRON DEVICES AND CIRCUITS
MATHEMATICS AND COMPUTERS