CMOS voltage references using lateral bipolar transistors

Two bandgap references are presented which make use of CMOS compatible lateral bipolar transistors. The circuits are designed to be insensitive to the low beta and alpha current gains of these devices. Their accuracy is not degraded by any amplifier offset. The first reference has an intrinsic low o...

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Veröffentlicht in:IEEE journal of solid-state circuits 1985-12, Vol.20 (6), p.1151-1157
Hauptverfasser: Degrauwe, M.G.R., Leuthold, O.N., Vittoz, E.A., Oguey, H.J., Descombes, A.
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container_end_page 1157
container_issue 6
container_start_page 1151
container_title IEEE journal of solid-state circuits
container_volume 20
creator Degrauwe, M.G.R.
Leuthold, O.N.
Vittoz, E.A.
Oguey, H.J.
Descombes, A.
description Two bandgap references are presented which make use of CMOS compatible lateral bipolar transistors. The circuits are designed to be insensitive to the low beta and alpha current gains of these devices. Their accuracy is not degraded by any amplifier offset. The first reference has an intrinsic low output impedance. Experimental results yield an output voltage which is constant within 2 mV, over the commercial temperature range (0 to 70/spl deg/C), when all the circuits of the same batch are trimmed at a single temperature. The load regulation is 3.5 /spl mu/V//spl mu/A, and the power supply rejection ratio (PSRR) at 100 Hz is 60 dB. Measurements on a second reference yield a PSRR of minimum 77 dB at 100 Hz. Temperature behaviour is identical to the first circuit presented. This circuit requires a supply voltage of only 1.7 V.
doi_str_mv 10.1109/JSSC.1985.1052453
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source IEEE Electronic Library (IEL)
subjects Analog-digital conversion
Applied sciences
Bipolar transistors
CMOS technology
Digital circuits
Electronics
Exact sciences and technology
Impedance
Integrated circuits
MOSFETs
Photonic band gap
Power supplies
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Temperature distribution
Threshold voltage
title CMOS voltage references using lateral bipolar transistors
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