本文關(guān)鍵詞：一種基于開關(guān)電容的基準(zhǔn)電壓源　出處：《微電子學(xué)》2017年04期 　論文類型：期刊論文

  更多相關(guān)文章： 開關(guān)電容 帶隙基準(zhǔn) 離散時(shí)間 溫度系數(shù)

【摘要】：提出了一種基于開關(guān)電容的基準(zhǔn)電壓源,其輸出基準(zhǔn)電壓低于1.25 V。通過增加輸出級(jí)電路,保證了連續(xù)時(shí)間內(nèi)輸出穩(wěn)定的基準(zhǔn)電壓。采用開關(guān)電容電路消除了運(yùn)放輸入失調(diào)電壓的不利影響。采用SMIC 0.13μm EEPROM工藝進(jìn)行了流片,電路面積為0.007 mm~2。測(cè)試結(jié)果表明,該基準(zhǔn)電壓源在常溫下輸出的基準(zhǔn)電壓為820 m V,在1.1~1.7 V電源電壓范圍內(nèi)的電壓調(diào)整率為2.336 m V/V,在-40℃~80℃范圍內(nèi)的溫度系數(shù)為6.75×10~(-5)/℃。
[Abstract]:This paper presents a voltage reference source based on switched capacitor, whose output reference voltage is less than 1.25 V. by adding output stage circuit. The switching capacitor circuit is used to eliminate the negative effect of input offset voltage of operational amplifier. SMIC 0.13 渭 m is adopted. The flow sheet was carried out by EEPROM process. The circuit area is 0.007 mm / 2. The test results show that the reference voltage output from the reference voltage source is 820 MV at room temperature. The voltage adjustment rate is 2.336 MV / V and the temperature coefficient is 6.75 脳 10 ~ (-5) / 鈩，

本文編號(hào)：1392965