← 返回 JSSC 论文列表JSSC 2011第7期Data Converters0.16μm
A0 1 2m m 74 W Micropower Temperature Sensor With an Inaccuracy of 02 C 3 From
设计了一种用于RFID应用的CMOS智能温度传感器，具有低功耗和高精度特性。
0.12mm²面积, 7.4μW功耗, ±0.2°C精度, 15mK分辨率, 10Hz转换率
温度传感器CMOS低功耗RFIDADC
▸基于PNP的温度传感器设计
▸数字辅助读出方案降低模拟电路复杂性和面积
▸能量高效的两步式zoom ADC
Abstract
This paper describes the design of a CMOS
smart temperature sensor inte nded for RFID applications.
The PNP-based sensor uses a digit ally-assisted readout scheme
that reduces the complexity and area of the analog circuitry
and simpli fies trimming. A key feature of this scheme is an en-
ergy-efficient two-step zoom ADC that combines a coarse 5-bit
SAR conversion with a fine 10-bit conversion. After a single
trim at 30 C ,t h es e n s o ra c h i e v e sa ni n a c c u r a c yo fC
from C to 125 C. It