A 90 nm all-digital smart temperature sensor with wireless body area network baseband transceiver for biotelemetry applications

Ching Che Chung*, Jui Yuan Yu, Shiou Ru Jang, Chen-Yi Lee

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

This work provides an all-digital smart temperature sensor with dual-mode transceiver chipset for wireless body area network (WBAN). The measurement results show that the proposed temperature sensor achieves a maximum temperature error<0.6°C within the range from 20°C to 50°C. And a phase-frequency tunable clock generator (PFTCG) is designed with frequency and phase tuning capability on the fly. This chip is manufactured on a standard 90 nm CMOS process. The supply voltage to the chip core is globally applied at 0.5 V with 12 powerdomain partitions for sleep-active and voltage-scaling management. The transceiver chipset provides maximum 7 Mbps data rate, resulting in 97.7% efficiency improvement in baseband circuit processing.

Original languageEnglish
Pages (from-to)241-248
Number of pages8
JournalJournal of Signal Processing Systems
Volume64
Issue number2
DOIs
StatePublished - 1 Aug 2011

Keywords

  • PLL
  • Power domain
  • Temperature sensor
  • Voltage scaling
  • WBAN

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