Referenced Items are not available for this document.
A tiny, high-speed, wide-band, voltage-feedback operational amplifier capable of driving unlimited capacitive load is described. A class AB input stage is combined with a modified dynamic Witch-Hazel current mirror to provide high slew rate and wide bandwidth with a small die area and small idle current. An RC network couples part of the capacitive load into the high-impedance node, therefore lowering the dominant pole and increasing stability as a function of capacitive load. The part was fabricated on a 3 GHz, 40 V complementary bipolar process. The quiescent current of the chip is 4.5 mA with 1500 V/μm slew rate and a -3 dB bandwidth of 235 MHz. The part is operational from ±2.5 V to ±18 V supply range. Die size is 38 mils by 46 mils and it fits into a tiny surface outline transistor (SOT) package
Published in:
Solid-State Circuits, IEEE Journal of
(Volume:31
,
Issue:
10
)
Date of Publication: Oct 1996
- Page(s):
- 1511 - 1516
- ISSN :
- 0018-9200
- INSPEC Accession Number:
- 5408646
- Digital Object Identifier :
- 10.1109/4.540063
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 August 2002
- Issue Date :
- Oct 1996
- Sponsored by :
- IEEE Solid-State Circuits Society
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