![]() |
Electronic Components Datasheet Search |
|
LTC2755 Datasheet(PDF) 20 Page - Linear Technology |
|
|
LTC2755 Datasheet(HTML) 20 Page - Linear Technology |
20 / 24 page ![]() LTC2755 20 2755f Grounding As with any high resolution converter, clean grounding is important. A low impedance analog ground plane and star grounding techniques should be used. IOUT2X must be tied to the star ground with as low a resistance as possible. When it is not possible to locate star ground close to IOUT2, a low resistance trace should be used to route this pin to star ground. This minimizes the voltage drop from this pin to ground caused by the code dependent current flowing to ground. When the resistance of this circuit board trace becomes greater than 1Ω, a force/sense am- plifier configuration should be used to drive this pin (see APPLICATIONS INFORMATION Figure 2). This preserves the excellent accuracy (1LSB INL and DNL) of the LTC2755-16. Layout Figures 3, 4, 5, and 6 show the layout for the LTC2755 evaluation board, DC1112. This shows how to route the digital signals around the device without interfering with the reference and output op amps. Complete demo board documentation is available in the DC1112 quick start guide. 1/2 LT1469 1/2 LT1469 DAC A LTC2755-16 VREF 5V 2 1 3 59 60 61 64 63 1 62 IOUT1A 15pF IOUT2A RFBA RVOSA REFA RCOM1 RIN1 ROFSA VOUTA 2 58 6 1 23 IOUT2 2 3 *SCHOTTKY BARRIER DIODE ZETEX* BAT54S LT1001 2755 F02 1000pF ALTERNATE AMPLIFIER FOR OPTIMUM SETTLING TIME PERFORMANCE 6 1 23 2,14, 34, 46 LT1468 3 ZETEX BAT54S 2 200Ω 200Ω IOUT2 150pF 3 2 DAC B DAC C DAC D – + – + – + Figure 2. Optional Circuits for Driving IOUT2 from GND with a Force/Sense Amplifier. |
Similar Part No. - LTC2755_15 |
|
Similar Description - LTC2755_15 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |