A L6V IO-bit 2OMHz Current-mode Sample and Hold Circuit
نویسنده
چکیده
A current mode sample and hold circuit has been designed to examine if high-precision current processing is possible simultaneously with a circu it to which current mode and switched-current circuits are applied and which operates at high-speed and with low supply voltage. The results are 1 O-bit accuracy, a 20MHz clock, and a 2 V supply voltage. Clock feedthroug h which degrades the precision of current when it is processed in a switched-current circuit is effectively canceled by the use of the newly developed differential configu ration.
منابع مشابه
A current-mode, 3 V, 20 MHz, 9-bit equivalent CMOS sample-and-hold circuit
| A new current-mode, low-power, lowvoltage and high-speed CMOS sample-and-hold circuit has been designed and fabricated. A new currentmode di erential switching scheme has been adopted to eliminate errors caused by feedthrough injection from the sample switches. The experimental result yields 9-bit resolution in 9mW power dissipation, in a 20MHz clock frequency from a 3V power supply.
متن کاملA Current-Mode Circuit With a Linearized Input V/I Conversion Scheme and the Realization of a 2-V/2.5-V Operational, 100-MS/s, MOS SHA
This paper proposes a circuit to linearize the signal current and improve the distortion characteristics at the input of a current-mode circuit. Input voltage-to-current (V/I) conversion is carried out by a resistor that connects the signal source and the current input terminal of the current-mode circuit. The signal current flowing into the current-mode circuit through this resistor is distort...
متن کاملA 1.5V,100MS/s,12-bit Current-Mode CMOSS ample-and-Hold Circuit
A high-linearity and high-speed current-mode sampleand-hold circuit is designed and simulated using a 0.25μm CMOS technology. This circuit design is based on low voltage and it utilizes a fully differential circuit. Due to the use of only two switches the switch related noise has been reduced. Signal dependent -error is completely eliminated by a new zero voltage switching technique. The circui...
متن کاملDesign of a current Mode Sample and Hold Circuit at sampling rate of 150 MS/s
A current mode sample and hold circuit is presented in this paper at 180nm technology. The major concerns of VLSI are area, power, delay and speed. Hence, we have used a MOSFET in triode region in the proposed architecture for voltage to current conversion instead of a resistor being used in previously proposed circuit. The proposed circuit achieves high sampling frequency and with more accurac...
متن کامل378 A 1 . 5 V , 30 Msps , 9 - to 10 - bit equivalent Current - mode CMOS Sample - and - hold Circuit
A new video-speed, current-mode, CMOS, sample-andhold circuit haF been developed. It operates with a supply voltage as low as 1.5 V and a signal-to-noise ratio (SIN) of 57 dB and 54 dB at clock frequencies of 20 MHz and 30 MHz. It consists of current mirror circuits with an analog switch and a capacitor placed in differential fonn to achieve high accuracy without being affected by the switch fe...
متن کامل