Abstract: A bootstrapped circuit for sampling inputs with a signal range greater than supply voltage includes: a bootstrapped switch coupled between an input node and an output node; a first transistor coupled to a control node of the bootstrapped switch; a first capacitor having a first end coupled to the first transistor; a second transistor coupled between the first transistor and a supply node, and having a control node coupled to a first clock signal node; a third transistor coupled between the first transistor and the supply node; a charge pump having an output coupled to a control node of the third transistor; a level shifter coupled to a second end of the first capacitor; a fourth transistor coupled between the supply node and a control node of the first transistor; and a fifth transistor coupled between the control node of the fourth transistor and the output of the charge pump and, having a control node coupled to the supply node; wherein the second end of the first capacitor can be charged to an input voltag

Abstract: The bootstrapping circuit capable of sampling inputs beyond supply voltage includes: a bootstrapped switch MN20 coupled between an input node and an output node; a first transistor MP13 having a first end coupled to a control node of the bootstrapped switch MN20; a clock bootstrapped capacitor C13 having a first end coupled to a second end of the first transistor MP13; a second transistor MN27 coupled between the first end of the first transistor MP13 and a supply node, and having a control node coupled to a first clock signal node PHI; a third transistor MN26 coupled between the second end of the first transistor MP13 and the supply node; a charge pump having a first output coupled to a control node of the third transistor MN26; a level shifter having a first output coupled to a second end of the clock bootstrapped capacitor C13; a fourth transistor MN25 coupled between the supply node and a control node of the first transistor MP13, and having a control node coupled to a second output of the charge pump; a

Abstract: An analog-to-digital converter device capable of measuring inputs beyond a supply voltage including: an N bit analog-to-digital converter powered by a supply voltage and a reference voltage; a range resolution stage capable of receiving inputs at higher voltages than the supply voltage, providing an input to the analog-to-digital converter, and outputting a logic value of one for the N+1th bit in response to an input signal higher than the reference voltage; and a bootstrapped input multiplexer stage for connecting low voltage input signals directly to the analog-to-digital converter and for connecting input signals that can exceed the supply voltage to the range resolution stage.

Abstract: A bootstrapping circuit capable of sampling inputs beyond a supply voltage which includes a bootstrapped switch coupled between an input node and an output node, a first transistor having a first end coupled to a control node of the bootstrapped switch, a first capacitor having a first end coupled to a second end of the first transistor, a second transistor coupled between the first end of the first transistor and a supply node, and having a control node coupled to a first clock signal node, a third transistor coupled between the second end of the first transistor and the supply node, a charge pump having an output coupled to a control node of the third transistor, a level shifter having an output coupled to a second end of the first capacitor, a fourth transistor cross-coupled with, the first transistor, a fifth transistor having a second end coupled to the first end of the fourth transistor, and having a control node coupled to the output of the level shifter, and a sixth transistor coupled between the firs