Keywords: clamp, analog clamp, ultra low leakage diode clamp, femptoamp clamp, low-cost, leakage clamps Related Parts
APPLICATION NOTE 36
Op-Amp Inputs Provide Ultra Low-Leakage Clamps
Jul 09, 1998
Abstract: A CMOS op amp is utilized to provide two-channel signal clamping with room-temperature leakage’s typically below 100fA. Costs of the dual clamping two-line circuit of <$3 compare favorably with alternate methods at double to quadruple the cost. Signal lines connect to either of the two op amp input pins, and clamping voltages are applied to the amplifier supply pins to provide bipolar clamping levels of the connected analog signal lines.
The document you have requested is available in Acrobat PDF format:
APPLICATION NOTE 36: Op-Amp Inputs Provide Ultra Low-Leakage Clamps