A battery-free multichannel digital neural/EMG telemetry system for flying insects.

Published

Journal Article

This paper presents a digital neural/EMG telemetry system small enough and lightweight enough to permit recording from insects in flight. It has a measured flight package mass of only 38 mg. This system includes a single-chip telemetry integrated circuit (IC) employing RF power harvesting for battery-free operation, with communication via modulated backscatter in the UHF (902-928 MHz) band. An on-chip 11-bit ADC digitizes 10 neural channels with a sampling rate of 26.1 kSps and 4 EMG channels at 1.63 kSps, and telemeters this data wirelessly to a base station. The companion base station transceiver includes an RF transmitter of +36 dBm (4 W) output power to wirelessly power the telemetry IC, and a digital receiver with a sensitivity of -70 dBm for 10⁻⁵ BER at 5.0 Mbps to receive the data stream from the telemetry IC. The telemetry chip was fabricated in a commercial 0.35 μ m 4M1P (4 metal, 1 poly) CMOS process. The die measures 2.36 × 1.88 mm, is 250 μm thick, and is wire bonded into a flex circuit assembly measuring 4.6 × 6.8 mm.

Full Text

Cited Authors

  • Thomas, SJ; Harrison, RR; Leonardo, A; Reynolds, MS

Published Date

  • October 2012

Published In

Volume / Issue

  • 6 / 5

Start / End Page

  • 424 - 436

PubMed ID

  • 23853229

Pubmed Central ID

  • 23853229

Electronic International Standard Serial Number (EISSN)

  • 1940-9990

International Standard Serial Number (ISSN)

  • 1932-4545

Digital Object Identifier (DOI)

  • 10.1109/tbcas.2012.2222881

Language

  • eng