A two-stage amplifier, operational at 0.8V and drawing 7μA, has been integrated in a standard digital 0.18μm CMOS process. Rail-to-rail operations at the input are enabled by complementary transistor pairs with gm control. The efficient rail-to-rail output stage is biased in class AB. The measured DC gain of the amplifier is 75dB, and the unity-gain frequency is 870kHz with a 12pF, 100kΩload. Both input and output stage transistors are biased in weak inversion.
|Title of host publication||23rd NORCHIP Conference, 2005.|
|Publication status||Published - 2005|
|Event||23rd NORCHIP Conference - Oulu, Finland|
Duration: 21 Nov 2005 → 22 Nov 2005
|Conference||23rd NORCHIP Conference|
|Period||21/11/2005 → 22/11/2005|