 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
THS1041CPWRG4 Datasheet(PDF) 32 Page - Texas Instruments |
|
||||||||||||||||||||||||||||||
THS1041CPWRG4 Datasheet(HTML) 32 Page - Texas Instruments |
|
|
32 / 42 page  THS1041 SLAS289C − OCTOBER 2001 − REVISED OCTOBER 2004 32 www.ti.com APPLICATION INFORMATION steady-state clamp voltage error (continued) V COS VDROOP = ∆VAIN tc td V(Clamp) VAIN VM Figure 47. Approximate Waveforms at AIN During Droop and Clamping The voltage change at AIN during acquisition has been approximated as a linear charging ramp by assuming that almost all of VCOS appears across RIN, giving a charging current VCOS/RIN (this is a reasonable approximation when VCOS is large enough to be of concern). The voltage change at AIN during clamp acquisition is then: DV AIN + V COS t d R IN C IN The peak-to-peak voltage variation at AIN must equal the clamp droop voltage at steady state. Equating the droop voltage to the clamp acquisition voltage change gives: V COS + R IN I IN t d tc Thus for low offset voltage, keep RIN low, design for low droop and ensure that the ratio td/tc is not unreasonably large. reference decoupling VREF pin When the on-chip reference generator is enabled, the VREF pin should be decoupled to the circuit board’s analog ground plane close to the THS1041 AGND pin via a 1- µF capacitor and a 0.1-µF ceramic capacitor. REFT and REFB pins In any mode of operation, the REFT and REFB pins should be decoupled as shown in Figure 48. Use short board traces between the THS1041 and the capacitors to minimize parasitic inductance. THS1041 REFT REFB 0.1 µF 10 µF 0.1 µF 0.1 µF Figure 48. Recommended Decoupling for the ADC Reference Pins REFT and REFB (19) (20) |
Similar Part No. - THS1041CPWRG4 |
|
Similar Description - THS1041CPWRG4 |
|
|
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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
