A single-power-supply 10-b video BiCMOS sample-and-hold IC

Author

Tsugaru, Kazunori ; Sugimoto, Yasuhiro ; Noda, Makoto ; Ito, Takao ; Suwa, Yoshito

Author_Institution

Toshiba Corp., Kawasaki, Japan

Volume

25

Issue

3

fYear

1990

fDate

6/1/1990 12:00:00 AM

Firstpage

653

Lastpage

659

Abstract

A +5-V single-power-supply 10-b video BiCMOS sample-and-hold IC is described. Video speed, low power, and 10-b accuracy sample-and-hold operation have been achieved using a complementary connected buffer format sample switch. A high-speed p-n-p transistor used in the sample switch is formed by a combination of n-p-n and PMOS transistors. The sample-and-hold operation is accomplished by feeding back the hold capacitor voltage to the sample switch inputs, so that the inputs transfer symmetrically for the hold capacitor voltage at any input level. The sample-and-hold IC has been implemented in 1.2-μm BiCMOS technology and evaluated. The following results have been obtained: 185-MHz 3-dB bandwidth at 22-pF hold capacitor, 63-dB signal-to-noise ratio at 8-MHz full-scale input, 20-ns acquisition time at 1-V step input, 15-ns switch setting time, and 0.1% linearity error. Power dissipation is 150 mW

Keywords

BIMOS integrated circuits; analogue circuits; sample and hold circuits; video signals; 1.2 micron; 150 mW; 185 MHz; 20 ns; acquisition time; complementary connected buffer format sample switch; hold capacitor voltage; linearity error; p-n-p transistor; signal-to-noise ratio; single-power-supply; switch setting time; video BiCMOS sample-and-hold IC; BiCMOS integrated circuits; Capacitance; Capacitors; High speed integrated circuits; MOSFETs; P-n junctions; Power dissipation; Power supplies; Switches; Voltage;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/4.102657

Filename

102657