Electronic Components Datasheet Search |
|
OPAx349 Datasheet(PDF) 11 Page - Texas Instruments |
|
OPAx349 Datasheet(HTML) 11 Page - Texas Instruments |
11 / 29 page WINDOW COMPARATOR V = H R 2 R +R 1 2 ´ VS (5) V = L R 4 R +R 3 4 ´ VS (6) V S A1 A2 D1 (2) D2 (2) R 5 10kW R 6 5.1kW R 7 5.1kW R 2kW (1) IN V S V S Q1 (3) R 1 V H V L R 2 1/2 OPA2379 1/2 OPA2379 V S V OUT V IN V S R 3 R 4 OPA379 OPA2379 OPA4379 www.ti.com ................................................................................................................................................... SBOS347D – NOVEMBER 2005 – REVISED MAY 2008 The window comparator threshold voltages are set as follows: Figure 24 shows the OPA2379 used as a window comparator. The threshold limits are set by VH and VL, with VH > VL. When VIN < VH, the output of A1 is low. When VIN > VL, the output of A2 is low. Therefore, both op amp outputs are at 0V as long as VIN is between VH and VL. This architecture results in no current flowing through either diode, Q1 in cutoff, with the base voltage at 0V, and VOUT forced high. If VIN falls below VL, the output of A2 is high, current flows through D2, and VOUT is low. Likewise, if VIN rises above VH, the output of A1 is high, current flows through D1, and VOUT is low. (1) RIN protects A1 and A2 from possible excess current flow. (2) IN4446 or equivalent diodes. (3) 2N2222 or equivalent NPN transistor. Figure 24. OPA2379 as a Window Comparator Copyright © 2005–2008, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Link(s): OPA379 OPA2379 OPA4379 |
Similar Part No. - OPAx349 |
|
Similar Description - OPAx349 |
|
|
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 |