Abstract
CMOS RF digitally programmable gain amplifier (RF PGA), covering various terrestrial mobile digital TV standards (DMB, ISDB-T, and DVB-H) is implemented as a part of a low-IF tuner 1C using 0.18-μm CMOS technology. An improvement of 13-dB IIP3 is attained without significant degradation of other performance criteria like gain, noise figure, common-mode rejection ratio, etc., at similar power consumption. This is achieved by applying a newly proposed differential circuit gm" (the second derivatives of transconductance) cancellation technique, called the differential multiple gated transistor (DMGTR). In the DMGTR amplifier, the negative value of gm" in the fully differential amplifier can be compensated by the positive value of gm" in the pseudo differential amplifier which is properly sized and biased. By adopting the DMGTR, a low-power highly linear RF PGA is implemented. Also, in order to have wide gain range with fine step resolution, a new RF PGA architecture is proposed. The measurement results of the proposed RF PGA exhibit 50-dB gain range with 0.25-dB resolution, 4.5-dB noise figure, a -4-dBm IIP3 (maximum 30 dBm) and 25-dB gain at 16-mW power consumption.
| Original language | English |
|---|---|
| Pages (from-to) | 945-953 |
| Number of pages | 9 |
| Journal | IEEE Journal of Solid-State Circuits |
| Volume | 41 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2006 Apr 1 |
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All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering
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A 13-dB IIP3 improved low-power CMOS RF programmable gain amplifier using differential circuit transconductance linearization for various terrestrial mobile D-TV applications. / Kim, tae wook; Kim, Bonkee.
In: IEEE Journal of Solid-State Circuits, Vol. 41, No. 4, 01.04.2006, p. 945-953.Research output: Contribution to journal › Article
TY - JOUR
T1 - A 13-dB IIP3 improved low-power CMOS RF programmable gain amplifier using differential circuit transconductance linearization for various terrestrial mobile D-TV applications
AU - Kim, tae wook
AU - Kim, Bonkee
PY - 2006/4/1
Y1 - 2006/4/1
N2 - CMOS RF digitally programmable gain amplifier (RF PGA), covering various terrestrial mobile digital TV standards (DMB, ISDB-T, and DVB-H) is implemented as a part of a low-IF tuner 1C using 0.18-μm CMOS technology. An improvement of 13-dB IIP3 is attained without significant degradation of other performance criteria like gain, noise figure, common-mode rejection ratio, etc., at similar power consumption. This is achieved by applying a newly proposed differential circuit gm" (the second derivatives of transconductance) cancellation technique, called the differential multiple gated transistor (DMGTR). In the DMGTR amplifier, the negative value of gm" in the fully differential amplifier can be compensated by the positive value of gm" in the pseudo differential amplifier which is properly sized and biased. By adopting the DMGTR, a low-power highly linear RF PGA is implemented. Also, in order to have wide gain range with fine step resolution, a new RF PGA architecture is proposed. The measurement results of the proposed RF PGA exhibit 50-dB gain range with 0.25-dB resolution, 4.5-dB noise figure, a -4-dBm IIP3 (maximum 30 dBm) and 25-dB gain at 16-mW power consumption.
AB - CMOS RF digitally programmable gain amplifier (RF PGA), covering various terrestrial mobile digital TV standards (DMB, ISDB-T, and DVB-H) is implemented as a part of a low-IF tuner 1C using 0.18-μm CMOS technology. An improvement of 13-dB IIP3 is attained without significant degradation of other performance criteria like gain, noise figure, common-mode rejection ratio, etc., at similar power consumption. This is achieved by applying a newly proposed differential circuit gm" (the second derivatives of transconductance) cancellation technique, called the differential multiple gated transistor (DMGTR). In the DMGTR amplifier, the negative value of gm" in the fully differential amplifier can be compensated by the positive value of gm" in the pseudo differential amplifier which is properly sized and biased. By adopting the DMGTR, a low-power highly linear RF PGA is implemented. Also, in order to have wide gain range with fine step resolution, a new RF PGA architecture is proposed. The measurement results of the proposed RF PGA exhibit 50-dB gain range with 0.25-dB resolution, 4.5-dB noise figure, a -4-dBm IIP3 (maximum 30 dBm) and 25-dB gain at 16-mW power consumption.
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U2 - 10.1109/JSSC.2006.870744
DO - 10.1109/JSSC.2006.870744
M3 - Article
VL - 41
SP - 945
EP - 953
JO - IEEE Journal of Solid-State Circuits
JF - IEEE Journal of Solid-State Circuits
SN - 0018-9200
IS - 4
ER -