纳米技术与精密工程
納米技術與精密工程
납미기술여정밀공정
NANOTECHNOLOGY AND PRECISION ENGINEERING
2007年
4期
293-297
,共5页
压频转换器%Σ-△调制器%高线性度%加速度计接口电路
壓頻轉換器%Σ-△調製器%高線性度%加速度計接口電路
압빈전환기%Σ-△조제기%고선성도%가속도계접구전로
voltage-to-frequency converter%Σ-△ modulator%high linearity%accelerometer interface circuit
设计了一种基于Σ-Δ调制器技术的新型电压.频率转换器,可用于加速度计接口电路将模拟电压信号转换成相应的频率输出信号,且其对于恒定输入电压具有稳定的输出频率,具有正负两种转换特性.采用中国电子科技集团二十四所的4μm阱标准CMOS工艺参数对电路进行了模拟仿真.在10V电源电压下,其时钟频率为1.04MHz,输入电压范围为1.5～8.5 V,输出频率范围为40-533 kHz,转换灵敏度约为134 kGz/V,非线性度小于0.08%.仿真结果表明,其可广泛应用于矢量传感器的模数转换接口电路.
設計瞭一種基于Σ-Δ調製器技術的新型電壓.頻率轉換器,可用于加速度計接口電路將模擬電壓信號轉換成相應的頻率輸齣信號,且其對于恆定輸入電壓具有穩定的輸齣頻率,具有正負兩種轉換特性.採用中國電子科技集糰二十四所的4μm阱標準CMOS工藝參數對電路進行瞭模擬倣真.在10V電源電壓下,其時鐘頻率為1.04MHz,輸入電壓範圍為1.5～8.5 V,輸齣頻率範圍為40-533 kHz,轉換靈敏度約為134 kGz/V,非線性度小于0.08%.倣真結果錶明,其可廣汎應用于矢量傳感器的模數轉換接口電路.
설계료일충기우Σ-Δ조제기기술적신형전압.빈솔전환기,가용우가속도계접구전로장모의전압신호전환성상응적빈솔수출신호,차기대우항정수입전압구유은정적수출빈솔,구유정부량충전환특성.채용중국전자과기집단이십사소적4μm정표준CMOS공예삼수대전로진행료모의방진.재10V전원전압하,기시종빈솔위1.04MHz,수입전압범위위1.5～8.5 V,수출빈솔범위위40-533 kHz,전환령민도약위134 kGz/V,비선성도소우0.08%.방진결과표명,기가엄범응용우시량전감기적모수전환접구전로.
A new voltage-to-frequency converter based on ∑-△ modulator technology was designed.It can convert the analog voltage signals to output signals with the corresponding frequency in micro-accelerometer interface circuit.For a constant input voltage,it can provide a stable output frequency.Furthermore,it has posifive and negative conversion characteristics.The circuit was simulated with 4 karl P-well standard CMOS process parameters provided by the 24th Institute of Electronics.The frequency of clock is 1.04 MHz.the range of input voltage detected is 1.5-8.5 V and the range of output frequency is 40-533 kHz under a 10 V power supply.The conversion sensifivity is about 134 kHz/V.nonlinearity is less than 0.08%.The simulation results show that the system Can be applied in ADC interface circuits for vector sensors.
