Motore di ricerca datesheet componenti elettronici |
|
ADC0816 Scheda tecnica(PDF) 11 Page - Texas Instruments |
|
ADC0816 Scheda tecnica(HTML) 11 Page - Texas Instruments |
11 / 18 page ADC0816, ADC0817 www.ti.com SNAS527C – JUNE 1999 – REVISED MARCH 2013 Figure 9. Ratiometric Conversion System The ADC0816 needs less than a milliamp of supply current so developing the supply from the reference is readily accomplished. In Figure 11 a ground references system is shown which generates the supply from the reference. The buffer shown can be an op amp of sufficient drive to supply the milliamp of supply current and the desired bus drive, or if a capacitive bus is driven by the outputs a large capacitor will supply the transient supply current as seen in Figure 12. The LM301 is overcompensated to insure stability when loaded by the 10 μF output capacitor. The top and bottom ladder voltages cannot exceed VCCand ground, respectively, but they can be symmetrically less than VCC and greater than ground. The center of the ladder voltage should always be near the center of the supply. The sensitivity of the converter can be increased, (i.e., size of the LSB steps decreased) by using a symmetrical reference system. In Figure 13, a2.5V reference is symmetrically centered about VCC/2 since the same current flows in identical resistors. This system with a 2.5V reference allows the LSB to be half the size of the LSB in a 5V reference system. Figure 10. Ground Referenced Conversion System Using Trimmed Supply Figure 11. Ground Referenced Conversion System with Reference Generating VCC Supply Copyright © 1999–2013, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Links: ADC0816 ADC0817 |
Codice articolo simile - ADC0816 |
|
Descrizione simile - ADC0816 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEETIT.COM |
Lei ha avuto il aiuto da alldatasheet? [ DONATE ] |
Di alldatasheet | Richest di pubblicita | contatti | Privacy Policy | scambio Link | Ricerca produttore 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 |