中国集成电路
中國集成電路
중국집성전로
CHINA INTEGRATED CIRCUIT
2012年
5期
39-43
,共5页
蒋师%杨维明%周一川%邹静
蔣師%楊維明%週一川%鄒靜
장사%양유명%주일천%추정
分压式二阶曲率补偿%运放失调电压补偿结构%高精度带隙电压源%低温度系数
分壓式二階麯率補償%運放失調電壓補償結構%高精度帶隙電壓源%低溫度繫數
분압식이계곡솔보상%운방실조전압보상결구%고정도대극전압원%저온도계수
2nd order curvature compensation of voltage divided mode%operational amplifier offset voltage compensation structure%high-precision band-gap reference voltage source%low temperature coefficient
本文提出了一种带运放失调电压补偿结构和分压式二阶曲率补偿结构的低温度系数带隙基准电路。设计目标为对便携设备提供0．8V的电压。基于华虹CZ6H工艺在CADENCE软件TT模型下仿真，仿真结果表明，带隙基准电压源在-40℃-120℃度范围内温度系数仅为1．77×10q／℃，电源抑制比（PRSS）在低频下为86．9dB。在3V-6V的电源电压工作范围内，输出电压摆幅为0．171mV。
本文提齣瞭一種帶運放失調電壓補償結構和分壓式二階麯率補償結構的低溫度繫數帶隙基準電路。設計目標為對便攜設備提供0．8V的電壓。基于華虹CZ6H工藝在CADENCE軟件TT模型下倣真，倣真結果錶明，帶隙基準電壓源在-40℃-120℃度範圍內溫度繫數僅為1．77×10q／℃，電源抑製比（PRSS）在低頻下為86．9dB。在3V-6V的電源電壓工作範圍內，輸齣電壓襬幅為0．171mV。
본문제출료일충대운방실조전압보상결구화분압식이계곡솔보상결구적저온도계수대극기준전로。설계목표위대편휴설비제공0．8V적전압。기우화홍CZ6H공예재CADENCE연건TT모형하방진，방진결과표명，대극기준전압원재-40℃-120℃도범위내온도계수부위1．77×10q／℃，전원억제비（PRSS）재저빈하위86．9dB。재3V-6V적전원전압공작범위내，수출전압파폭위0．171mV。
A low temperature coefficient band-gap reference circuit with an operational amplifier offset voltage compensation structure and 2nd order curvature compensation of voltage divided mode is put forward. Design goal voltage is 0.8 V which can be used for portable devices. Based on HuaHong CZ6H technology and simulated under CADENCE software TT model, the simulation results show that, band-gap reference voltage source＇ s temperature coefficient is 1.77 ×10-6/℃ between -40℃-125℃ temperature range. In the low frequency, the PSSR is the 86.9dB. The band-gap output voltage swing is 0.171mV in 3 V-6 V power supply voltage of the working range.
