Patent ID: 8654600
Filing Date: 2014-02-18
Classification: G11C

Abstract:
1. An integrated circuit having a current sense amplifier (e.g., 200 ) comprising: a trans-impedance amplifier (e.g., an inverter (e.g., an output buffer (e.g., the trans-impedance amplifier comprises a current mirror that generates a bias current for a conversion device (e.g., Icas) that converts the input current signal into the first voltage signal; and the current mirror comprises: a current source (e.g., Ipbias) that generates a reference current (e.g., Ivd); a mirror device (e.g., Irdv) connected to the current source to generate the bias current by mirroring the reference current; and a regenerative device (e.g., Ilowvboost) connected between a drain of the current source and gates of the current source and the mirror device, wherein the regenerative device has a threshold voltage larger than a threshold voltage of the current source.