Digital 1 V 82 μW pseudo-two-stage Class-AB OTA
نویسندگان
چکیده
منابع مشابه
Two-Stage Feedforward Class-AB CMOS OTA for Low-Voltage Filtering Applications
A compact OTA suitable for low-voltage active-RC and MOSFET-C filters is presented. The input stage of the OTA utilises the NMOS pseudo-differential amplifier with PMOS active load. The output stage relies upon the dual-mode feed-forward class-AB technique (based on an inverter-type transconductor) with common-mode rejection capability that incurs no penalty on transconductance/bias-current eff...
متن کامل1-V CMOS Class AB Current Mirror
A CMOS class AB current mirror whose supply requirements are restricted to one threshold voltage plus three saturation voltages is presented. The circuit uses two poly resistors and two auxiliary differential amplifiers to achieve low-voltage operation, as well as control of quiescent currents and input bias voltage. A design example is implemented in a 0.5-μm standard technology and uses a 1-V...
متن کاملLow Voltage High Gain Linear Class AB CMOS OTA with DC Level Input Stage
This paper presents a low-voltage low-power differential linear transconductor with near rail-to-rail input swing. Based on the current-mirror OTA topology, the proposed transconductor combines the Flipped Voltage Follower (FVF) technique to linearize the transconductor behavior that leads to classAB linear operation and the virtual transistor technique to lower the effective threshold voltages...
متن کاملAn Adaptive Biasing Technique to Convert a Pseudo-Class AB Amplifier to Class AB
An essential modification to a conventional four-stage pseudo-class AB amplifier results in a true class AB amplifier. As opposed to the conventional pseudoclass AB scheme, which uses a current mirror in the third stage, our work uses an adaptive biasing circuit in the third stage in order to drastically reduce quiescent current. The pseudo-class AB and new class AB amplifiers are designed in a...
متن کاملA 0.8-V, 8-μW, CMOS OTA with 50-dB Gain and 1.2-MHz GBW in 18-pF Load
A low-power low-voltage OTA with rail-to-rail output is introduced. The proposed topology is based on the common current mirror OTA topology and provide gain enhancement without extra power consumption. Implemented in a standard 0.25μm CMOS technology, the proposed OTA achieves 50 dB DC gain in 0.8 V supply voltage. The GBW is 1.2MHz and the static power consumption is 8μW while driving 18pF lo...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Tsinghua Science and Technology
سال: 2009
ISSN: 1007-0214
DOI: 10.1016/s1007-0214(09)70123-3