Moteur de recherche de fiches techniques de composants électroniques |
|
AD829JR Fiches technique(PDF) 11 Page - Analog Devices |
|
AD829JR Fiches technique(HTML) 11 Page - Analog Devices |
11 / 12 page AD829 REV. E –11– +15V –15V COMM 10 F EACH AMPLIFIER 10 F 0.1 F 0.1 F +VS 1 F 1 F 0.1 F 0.1 F –VS PIN 4 PIN 7 INPUT FREQUENCY CMRR 100 Hz 1 MHz 10 MHz 64.6dB 44.7dB 23.9dB AD829 +VIN 2–8pF SETTLING TIME AC CMR ADJUST 3pF AD829 3pF 1pF 1pF 2k 2k RG 210 AD848 (G = 5) A1 A2 A3 +VIN 200 200 970 50 DC CMR ADJUST 1k 3pF 2k (G = 20) (G = 20) CIRCUIT GAIN = (4000 RG + 1 ( 5 Figure 38. A High Gain, Video Bandwidth Three Op Amp In Amp Circuit FREQUENCY – Hz –47 100M 1M 10M –44 –41 –38 –35 –32 –29 –26 –23 –20 –17 VIN = –20dBM RL = 1k RF = 1k GAIN = –1 CCOMP = 4pF 15V 5V Figure 35. Closed-Loop Frequency Response vs. Supply for the Inverting Amplifier Using Current Feedback Compensation A Low Error Video Line Driver The buffer circuit shown in Figure 37 will drive a back-termi- nated 75 Ω video line to standard video levels (1 V p-p) with 0.1 dB gain flatness to 30 MHz with only 0.04 ° and 0.02% differential phase and gain at the 4.43 MHz PAL color subcarrier frequency. This level of performance, which meets the requirements for high definition video displays and test equipment, is achieved using only 5 mA quiescent current. A High Gain, Video Bandwidth Three Op Amp In Amp Figure 38 shows a three op amp instrumentation amplifier cir- cuit which provides a gain of 100 at video bandwidths. At a circuit gain of 100 the small signal bandwidth equals 18 MHz into an FET probe. Small signal bandwidth equals 6.6 MHz with a 50 Ω load. 0.1% settling time is 300 ns. 50 50 COAX CABLE 0.1 F 3pF CCOMP 0.1 F AD829 VOUT +15V VIN –15V 50 50 COAX CABLE 50 2k 2k Figure 36. Noninverting Amplifier Connection Using Current Feedback Compensation 0.1 F 30pF 0.1 F AD829 VOUT +15V VIN –15V 75 75 COAX CABLE 75 300 OPTIONAL 2 – 7pF FLATNESS TRIM CCOMP 300 75 Figure 37. A Video Line Driver with a Flatness over Frequency Adjustment The input amplifiers operate at a gain of 20, while the output op amp runs at a gain of 5. In this circuit the main bandwidth limitation is the gain/ bandwidth product of the output ampli- fier. Extra care needs to be taken while breadboarding this cir- cuit, since even a couple of extra picofarads of stray capacitance at the compensation pins of A1 and A2 will degrade circuit bandwidth. |
Numéro de pièce similaire - AD829JR |
|
Description similaire - AD829JR |
|
|
Lien URL |
Politique de confidentialité |
ALLDATASHEET.FR |
ALLDATASHEET vous a-t-il été utile ? [ DONATE ] |
À propos de Alldatasheet | Publicité | Contactez-nous | Politique de confidentialité | Echange de liens | Fabricants 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 |