Motore di ricerca datesheet componenti elettronici |
|
AD8034ART-REEL7 Scheda tecnica(PDF) 5 Page - Analog Devices |
|
AD8034ART-REEL7 Scheda tecnica(HTML) 5 Page - Analog Devices |
5 / 20 page REV. B AD8033/AD8034 –5– CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the AD8033/AD8034 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. AMBIENT TEMPERATURE – C –60 –40 –20 0 20 40 60 80 100 2.0 1.5 1.0 0.5 0.0 SOIC-8 SOT-23-8 SC70-5 Figure 2. Maximum Power Dissipation vs. Temperature for a Four-Layer Board ORDERING GUIDE WARNING! ESD SENSITIVE DEVICE MAXIMUM POWER DISSIPATION The maximum safe power dissipation in the AD8033/AD8034 packages is limited by the associated rise in junction temperature (TJ) on the die. The plastic that encapsulates the die will locally reach the junction temperature. At approximately 150 °C, which is the glass transition temperature, the plastic will change its proper- ties. Even temporarily exceeding this temperature limit may change the stresses that the package exerts on the die, permanently shifting the parametric performance of the AD8033/AD8034. Exceeding a junction temperature of 175 °C for an extended period of time can result in changes in silicon devices, potentially causing failure. The still-air thermal properties of the package and PCB ( JA), ambient temperature (TA), and the total power dissipated in the package (PD) determine the junction temperature of the die. The junction temperature can be calculated as follows TT AD A JJ =+ × () P θ The power dissipated in the package (PD) is the sum of the quiescent power dissipation and the power dissipated in the package due to the load drive for all outputs. The quiescent power is the voltage between the supply pins (VS) times the quiescent current (IS). Assuming the load (RL) is referenced to midsupply, then the total drive power is VS/2 IOUT, some of which is dissipated in the package and some in the load (VOUT IOUT). The difference between the total drive power and the load power is the drive power dissipated in the package: P Quiescent Power Total Drive Power Load Power D =+ (– ) PV I V V R V R DS S S OUT L OUT L =× []+ ()×() [] [] // – / 2 2 RMS output voltages should be considered. If RL is referenced to VS–, as in single-supply operation, then the total drive power is VS IOUT. If the rms signal levels are indeterminate, consider the worst case, when VOUT = VS /4 for RL to midsupply: PV I V R DS S S L =× ()+() // 4 2 In single-supply operation with RL referenced to VS–, worst case is VOUT = VS /2. Airflow will increase heat dissipation, effectively reducing JA. Also, more metal directly in contact with the package leads from metal traces, through holes, ground, and power planes will reduce the JA. Care must be taken to minimize parasitic capacitances at the input leads of high speed op amps as discussed in the Layout, Grounding, and Bypassing Considerations section. Figure 2 shows the maximum safe power dissipation in the package versus the ambient temperature for the SOIC-8 (125 °C/W), SC70 (210 °C/W), and SOT-23-8 (160°C/W) packages on a JEDEC standard 4-layer board. JA values are approximations. OUTPUT SHORT CIRCUIT Shorting the output to ground or drawing excessive current for the AD8033/AD8034 will likely cause catastrophic failure. Model Temperature Range Package Description Package Outline Branding Information AD8033AR +85ºC 8-Lead SOIC R-8 AD8033AR-REEL +85ºC 8-Lead SOIC R-8 AD8033AR-REEL7 +85ºC 8-Lead SOIC R-8 AD8033AKS-REEL +85ºC 5-Lead SC70 KS-5 H3B AD8033AKS-REEL7 –40ºC to +85ºC 5-Lead SC70 KS-5 H3B AD8034AR –40ºC to +85ºC 8-Lead SOIC R-8 AD8034AR-REEL7 –40ºC to +85ºC 8-Lead SOIC R-8 AD8034AR-REEL –40ºC to +85ºC 8-Lead SOIC R-8 AD8034ART-REEL +85ºC 8-Lead SOT-23 RT-8 RT-8 HZA AD8034ART -REEL7 +85ºC 8-Lead SOT-23 HZA –40ºC to –40ºC to –40ºC to –40ºC to –40ºC to –40ºC to |
Codice articolo simile - AD8034ART-REEL7 |
|
Descrizione simile - AD8034ART-REEL7 |
|
|
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 |