WO2007125366A3 - Digital-to-analogue converters - Google Patents

Digital-to-analogue converters Download PDF

Info

Publication number
WO2007125366A3
WO2007125366A3 PCT/GB2007/050217 GB2007050217W WO2007125366A3 WO 2007125366 A3 WO2007125366 A3 WO 2007125366A3 GB 2007050217 W GB2007050217 W GB 2007050217W WO 2007125366 A3 WO2007125366 A3 WO 2007125366A3
Authority
WO
WIPO (PCT)
Prior art keywords
differential
digital
current
code
input
Prior art date
Application number
PCT/GB2007/050217
Other languages
French (fr)
Other versions
WO2007125366A2 (en
Inventor
Brian Stephen Carroll
Original Assignee
Artimi Inc
Brian Stephen Carroll
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
Priority claimed from GB0608375A external-priority patent/GB2437572B/en
Priority claimed from US11/519,201 external-priority patent/US7369077B2/en
Application filed by Artimi Inc, Brian Stephen Carroll filed Critical Artimi Inc
Publication of WO2007125366A2 publication Critical patent/WO2007125366A2/en
Publication of WO2007125366A3 publication Critical patent/WO2007125366A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4917—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes
    • H04L25/4923—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes using ternary codes
    • H04L25/4925—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes using ternary codes using balanced bipolar ternary codes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66—Digital/analogue converters
    • H03M1/74—Simultaneous conversion
    • H03M1/742—Simultaneous conversion using current sources as quantisation value generators
    • H03M1/745—Simultaneous conversion using current sources as quantisation value generators with weighted currents
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only

Abstract

Digital-to-Analogue Converters This invention generally relates to digital-to-analogue converters (DACs). More particularly it relates to differential, current-steering DACs with reduced small signal differential non-linearity. A differential current-steering digital-to-analogue converter (DAC), the DAC comprising: a digital input to receive a binary code comprising a plurality of bits defining a signed digital value for conversion into a signed differential analogue output signal; a pair of differential analogue output lines to provide said differential analogue output; and a set of binary-weighted steerable substantially constant current generators each coupled to said differential output lines and having a control input to receive a signal derived from said digital input to control current steering to said differential output lines responsive to said binary input code; wherein a said steerable substantially constant current generator comprises a ternary substantially constant current generator configured to generate a three-state differential current in response to a ternary signal on said control input; wherein each of said ternary current generators is associated with a bit of said binary code; and wherein said DAC further comprises a code converter coupled between said DAC digital input and said control inputs of said steerable current generators to convert said binary input code to a ternary code to control said steerable current generators.
PCT/GB2007/050217 2006-04-28 2007-04-26 Digital-to-analogue converters WO2007125366A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0608375.2 2006-04-28
GB0608375A GB2437572B (en) 2006-04-28 2006-04-28 Digital-to-analouge converters
US11/519,201 US7369077B2 (en) 2006-04-28 2006-09-12 Differential current-steering digital-to-analog converter
US11/519,201 2006-09-12

Publications (2)

Publication Number Publication Date
WO2007125366A2 WO2007125366A2 (en) 2007-11-08
WO2007125366A3 true WO2007125366A3 (en) 2008-04-10

Family

ID=38179763

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2007/050217 WO2007125366A2 (en) 2006-04-28 2007-04-26 Digital-to-analogue converters

Country Status (1)

Country Link
WO (1) WO2007125366A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10454460B2 (en) 2017-02-02 2019-10-22 Infineon Technologies Ag Robust trimming scheme for low power RC oscillator compatible with high temperature operation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5841384A (en) * 1994-08-18 1998-11-24 Hughes Electronics Non-linear digital-to-analog converter and related high precision current sources
US6507304B1 (en) * 2002-05-02 2003-01-14 National Semiconductor Corporation Current steering segmented DAC system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5841384A (en) * 1994-08-18 1998-11-24 Hughes Electronics Non-linear digital-to-analog converter and related high precision current sources
US6507304B1 (en) * 2002-05-02 2003-01-14 National Semiconductor Corporation Current steering segmented DAC system

Also Published As

Publication number Publication date
WO2007125366A2 (en) 2007-11-08

Similar Documents

Publication Publication Date Title
KR100824793B1 (en) Pipeline analog digital converter with self reference voltage driver
WO2007149713A3 (en) High-speed, high-resolution voltage output digital-to analog converter and method
US6329941B1 (en) Digital-to-analog converting device and method
TW200701653A (en) A digital-to-analog converter
WO2007135928A9 (en) Digital/analog conversion apparatus
WO2008146301A3 (en) Successive approximation anaglog-to-digital converter with inbuilt redundancy
CN103095303B (en) A kind of current mode and voltage-type compositive mathematical models converter
CN101084628A (en) High speed differential resistive voltage digital-to-analog converter
TW200824300A (en) Digital-to-analog converter
CN111900990A (en) Current steering type digital-to-analog converter based on hybrid coding
CN101674084A (en) Analog to digital converter
CN104426547A (en) 10-bit pipeline analogue-digital converter
WO2013063358A2 (en) Digital error correction in an analog-to-digital converter
CN102130688A (en) Resistance network type digital to analog converter structure
EP3729658A1 (en) Interpolation digital-to-analog converter (dac)
US9467161B1 (en) Low-power, high-speed successive approximation register analog-to-digital converter and conversion method using the same
US20150200681A1 (en) Segmented Digital-To-Analog Converter With Overlapping Segments
CN109309498B (en) Current steering type digital-to-analog converter based on thermometer code
WO2007125366A3 (en) Digital-to-analogue converters
CN106688185B (en) Monotonic segmented digital-to-analog converter
DE602007002990D1 (en) Circuit for high-resolution digital-to-analog conversion
Yenuchenko Alternative structures of a segmented current-steering DAC
JP2007037147A (en) Digital/analog conversion method employing multi-purpose current addition, and system thereof
AU2002366892A1 (en) Analog-to-digital converter and method of generating an intermediate code for an analog-to-digital converter
KR20190095589A (en) Bridge capacitor digital analog converter for preventing overflow

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07733638

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07733638

Country of ref document: EP

Kind code of ref document: A2