WO2001045252A3 - Interpolator having dual transistor ranks and ratiometric control - Google Patents

Interpolator having dual transistor ranks and ratiometric control Download PDF

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Publication number
WO2001045252A3
WO2001045252A3 PCT/US2000/033881 US0033881W WO0145252A3 WO 2001045252 A3 WO2001045252 A3 WO 2001045252A3 US 0033881 W US0033881 W US 0033881W WO 0145252 A3 WO0145252 A3 WO 0145252A3
Authority
WO
WIPO (PCT)
Prior art keywords
currents
interpolator
transistors
rank
current
Prior art date
Application number
PCT/US2000/033881
Other languages
French (fr)
Other versions
WO2001045252A2 (en
Inventor
Barrie Gilbert
Original Assignee
Analog Devices Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23850248&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2001045252(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Analog Devices Inc filed Critical Analog Devices Inc
Priority to EP00984366A priority Critical patent/EP1249069B1/en
Priority to DE60009158T priority patent/DE60009158D1/en
Publication of WO2001045252A2 publication Critical patent/WO2001045252A2/en
Publication of WO2001045252A3 publication Critical patent/WO2001045252A3/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0088—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using discontinuously variable devices, e.g. switch-operated
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/24—Frequency-independent attenuators

Abstract

An interpolator utilizes two ranks of transistors to generate a plurality of interpolator currents within the confines of a low power supply voltage. The first rank of transistors are underdriven, thereby generating a plurality of partially switched currents having shallow Gaussian-shaped functions. The partially switched currents are then spatially amplified by the second rank of transistors to reduce the overlap of the currents from adjacent transistors. The first rank of transistors are driven ratiometrically by the difference of two control currents, thereby eliminating errors caused by inaccurate resistors and current sources. A biasing op-amp senses the interpolator currents and servos the first rank of transistors, thereby regulating the interpolator currents to a value determined by a reference voltage which is temperature compensated. Thus, the biasing op-amp automatically compensates for temperature variations and manufacturing uncertainties in devices throughout the entire interpolator. A current generator utilizes a current mirror scheme and current replication techniques to cancel transistor alpha effects, thereby generating precise ratiometric drive currents from a low power supply voltage.
PCT/US2000/033881 1999-12-17 2000-12-14 Interpolator having dual transistor ranks and ratiometric control WO2001045252A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP00984366A EP1249069B1 (en) 1999-12-17 2000-12-14 Interpolator having dual transistor ranks and ratiometric control
DE60009158T DE60009158D1 (en) 1999-12-17 2000-12-14 INTERPOLATOR WITH TRANSISTORS IN TWO ROWS AND PROPORTIONAL CONTROL

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/466,050 US6489849B1 (en) 1999-12-17 1999-12-17 Interpolator having dual transistor ranks and ratiometric control
US09/466,050 1999-12-17

Publications (2)

Publication Number Publication Date
WO2001045252A2 WO2001045252A2 (en) 2001-06-21
WO2001045252A3 true WO2001045252A3 (en) 2002-01-24

Family

ID=23850248

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/033881 WO2001045252A2 (en) 1999-12-17 2000-12-14 Interpolator having dual transistor ranks and ratiometric control

Country Status (5)

Country Link
US (2) US6489849B1 (en)
EP (1) EP1249069B1 (en)
CN (1) CN1173466C (en)
DE (1) DE60009158D1 (en)
WO (1) WO2001045252A2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6489849B1 (en) * 1999-12-17 2002-12-03 Analog Devices, Inc. Interpolator having dual transistor ranks and ratiometric control
KR100433409B1 (en) * 2002-03-07 2004-05-31 삼성전자주식회사 Transconductor tunning circuit
EP1645040B1 (en) * 2003-07-07 2018-09-05 Analog Devices, Inc. Variable attenuation system having continuous input steering
US7088179B2 (en) * 2003-09-15 2006-08-08 Analog Devices, Inc. Single-ended input, differential output low noise amplifier
US7196577B2 (en) * 2003-10-14 2007-03-27 Analog Devices, Inc. Amplifier with capacitor selection
US7323933B2 (en) 2005-04-07 2008-01-29 Analog Devices, Inc. Vector modulator having attenuators with continuous input steering
US7259620B2 (en) * 2005-06-27 2007-08-21 Linear Technology Corporation Wide dynamic range switching variable gain amplifier and control
US7262661B2 (en) * 2005-06-27 2007-08-28 Linear Technology Corporation Variable gain amplifier with temperature compensation and gain linearity enhancement
US7268608B2 (en) 2005-08-18 2007-09-11 Linear Technology Corporation Wideband squaring cell
TWI300287B (en) * 2006-01-27 2008-08-21 Novatek Microelectronics Corp Operational transconductance amplifier
US7659707B2 (en) * 2007-05-14 2010-02-09 Hittite Microwave Corporation RF detector with crest factor measurement
US7863985B1 (en) * 2009-07-29 2011-01-04 Texas Instruments Incorporation High frequency amplifier linearization technique
US10574247B1 (en) 2018-09-14 2020-02-25 Analog Devices Global Unlimited Company Digital-to-analog converter transfer function modification
CN114236336B (en) * 2021-12-08 2024-02-13 成都海光微电子技术有限公司 Triode amplification factor detection circuit, method and sensor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0317758A2 (en) * 1987-11-25 1989-05-31 Tektronix, Inc. Method for providing a delayed signal and controllable delay circuit
US5077541A (en) * 1990-08-14 1991-12-31 Analog Devices, Inc. Variable-gain amplifier controlled by an analog signal and having a large dynamic range
US5684431A (en) * 1995-12-13 1997-11-04 Analog Devices Differential-input single-supply variable gain amplifier having linear-in-dB gain control

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5432478A (en) 1994-01-21 1995-07-11 Analog Devices, Inc. Linear interpolation circuit
US6084472A (en) * 1997-12-15 2000-07-04 Analog Devices, Inc. Multi-tanh triplet with optimal biasing
US6489849B1 (en) * 1999-12-17 2002-12-03 Analog Devices, Inc. Interpolator having dual transistor ranks and ratiometric control

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0317758A2 (en) * 1987-11-25 1989-05-31 Tektronix, Inc. Method for providing a delayed signal and controllable delay circuit
US5077541A (en) * 1990-08-14 1991-12-31 Analog Devices, Inc. Variable-gain amplifier controlled by an analog signal and having a large dynamic range
US5684431A (en) * 1995-12-13 1997-11-04 Analog Devices Differential-input single-supply variable gain amplifier having linear-in-dB gain control

Also Published As

Publication number Publication date
US20030137354A1 (en) 2003-07-24
US6489849B1 (en) 2002-12-03
WO2001045252A2 (en) 2001-06-21
CN1173466C (en) 2004-10-27
EP1249069B1 (en) 2004-03-17
DE60009158D1 (en) 2004-04-22
US7362177B2 (en) 2008-04-22
CN1423858A (en) 2003-06-11
EP1249069A2 (en) 2002-10-16

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