Os motores de busca de Datasheet de Componentes eletrônicos |
|
AD8034ART-R2 Folha de dados(PDF) 7 Page - Analog Devices |
|
AD8034ART-R2 Folha de dados(HTML) 7 Page - Analog Devices |
7 / 25 page AD8033/AD8034 Rev. D | Page 6 of 24 ABSOLUTE MAXIMUM RATINGS Table 4. Parameter Rating Supply Voltage 26.4 V Power Dissipation See Figure 5 If the rms signal levels are indeterminate, consider the worst case, when VOUT = VS/4 for RL to midsupply PD = (VS × IS) + (VS/4)2/RL In single-supply operation with RL referenced to VS−, worst case is VOUT = VS/2. Common-Mode Input Voltage 26.4 V Differential Input Voltage 1.4 V Storage Temperature Range −65°C to +125°C Operating Temperature Range −40°C to +85°C Lead Temperature (Soldering 10 sec) 300°C AMBIENT TEMPERATURE (°C) –60 –20 –40 100 60 80 2.0 1.5 1.0 0.5 0 SOIC-8 SOT-23-8 SC70-5 40 020 Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. 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 locally reaches the junction temperature. At approximately 150°C, which is the glass transition temperature, the plastic changes its properties. Even temporarily exceeding this temperature limit can 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 can result in changes in silicon devices, potentially causing failure. Figure 5. Maximum Power Dissipation vs. Ambient Temperature for a 4-Layer Board Airflow increases heat dissipation, effectively reducing θJA. In addition, more metal directly in contact with the package leads from metal traces, through holes, ground, and power planes reduces the θJA. 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 5 shows the maximum power dissipation in the package vs. the ambient temperature for the 8-lead SOIC (125°C/W), 5-lead SC70 (210°C/W), and 8-lead SOT-23 (160°C/W) packages on a JEDEC standard 4-layer board. θJA values are approximations. The still-air thermal properties of the package and PCB (θJA), 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 OUTPUT SHORT CIRCUIT Shorting the output to ground or drawing excessive current for the AD8033/AD8034 will likely cause catastrophic failure. TJ = TA + (PD × θJA) 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, 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 ESD CAUTION PD = Quiescent Power + (Total Drive Power − Load Power) PD = [VS × IS] + [(VS/2) × (VOUT/RL)] − [VOUT2/RL] RMS output voltages should be considered. If RL is referenced to −VS, as in single-supply operation, the total drive power is VS × IOUT. |
Nº de peça semelhante - AD8034ART-R2 |
|
Descrição semelhante - AD8034ART-R2 |
|
|
Ligação URL |
Privacy Policy |
ALLDATASHEETPT.COM |
ALLDATASHEET é útil para você? [ DONATE ] |
Sobre Alldatasheet | Publicidade | Contato conosco | Privacy Policy | roca de Link | Lista de Fabricantes 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 |