Title :
A 14-bit 20-Msamples/s pipelined A/D converter with class A/B SiGe amplifier
Author :
Kinyua, M. ; Maloberti, F. ; Gosney, W.
Author_Institution :
Texas Instruments Inc., 12500 TI Blvd, MS 8755, Dallas, TX 75243
Abstract :
This paper describes a 14-bit 20MSPS switched-capacitor pipelined ADC designed in a complementary SiGe/SOI bipolar process. It features an input-to-output class A/B operational amplifier designed to drive large sampling capacitors of 10pF without consuming excessive power. Prototype implementation exhibits measured INL of +/- 2.0 LSB, DNL of +/- 0.5 LSB, SNR of 73 dB and SFDR of 85 dB with a 2MHz input signal. Analog power dissipation at lowest amplifier bias setting is 390mW with 5V supply.
Keywords :
Capacitors; Digital signal processing; Dynamic range; Germanium silicon alloys; Pipeline processing; Prototypes; Sampling methods; Semiconductor device noise; Signal resolution; Silicon germanium; Analog-to-digital converter (ADC); SOI; SiGe; class A/B; complementary bipolar;
Conference_Titel :
Electrical and Electronics Engineering, 2004. (ICEEE). 1st International Conference on
Conference_Location :
Acapulco, Mexico
Print_ISBN :
0-7803-8531-4
DOI :
10.1109/ICEEE.2004.1433884
