Moteur de recherche de fiches techniques de composants électroniques |
|
ADC12048CIV Fiches technique(PDF) 8 Page - National Semiconductor (TI) |
|
|
ADC12048CIV Fiches technique(HTML) 8 Page - National Semiconductor (TI) |
8 / 32 page Digital Timing Characteristics (Continued) The following specifications apply to the ADC12048, 13-bit data bus width, V A+=VD+ = 5V, fCLK = 12 MHz, tf = 3 ns and CL = 50 pF on data I/O lines Symbol Parameter Conditions Typical Limits Units (Note 10) (Note 11) (Limit) t CSWR Falling Edge of CS to Falling Edge of WR 0ns t WRCS Active Edge of WR to Rising Edge of CS 0ns t WR WR Pulse Width 20 30 ns (min) t WRSETFalling Write Setup Time WMODE = “1” 20 ns (min) t WRHOLDFalling Write Hold Time WMODE = “1” 5 ns (min) t WRSETRising Write Setup Time WMODE = “0” 20 ns (min) t WRHOLDRising Write Hold Time WMODE = “0” 5 ns (min) t CSRD Falling Edge of CS to Falling Edge of RD 0ns t RDCS Rising Edge of RD to Rising Edge of CS 0ns t RDDATA Falling Edge of RD to Valid Data 8-Bit Mode (BW Bit = “0”) 40 58 ns (max) t RDDATA Falling Edge of RD to Valid Data 13-Bit Mode (BW Bit = “1”) 26 44 ns (max) t RDHOLD Read Hold Time 23 32 ns (max) t RDRDY Rising Edge of RD to Rising Edge of RDY 24 38 ns (max) t WRRDY Active Edge of WR to Rising Edge of RDY WMODE = “1” 42 65 ns (max) t STNDBY Active Edge of WR to Falling Edge of STDBY WMODE = “0”. Writing the Standby Command into the Configuration Register 200 230 ns (max) t STDONE Active Edge of WR to Rising Edge of STDBY WMODE = “0”. Writing the RESET Command into the Configuration Register 30 45 ns (max) t STDRDY Active Edge of WR to Falling Edge of RDY WMODE = “0”. Writing the RESET Command into the Configuration Register 1.4 2.5 ms (max) t SYNC Minimum SYNC Pulse Width 5 10 ns (min) Notes on Specifications Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions. Note 2: All voltages are measured with respect to GND, unless otherwise specified. Note 3: When the input voltage (VIN) at any pin exceeds the power supply rails (VIN < GND or VIN > (VA+orVD+)), the current at that pin should be limited to 30 mA. The 120 mA maximum package input current limits the number of pins that can safely exceed the power supplies with an input current of 30 mA to four. Note 4: The maximum power dissipation must he derated at elevated temperatures and is dictated by TJmax, (maximum junction temperature), θJA (package junction to ambient thermal resistance), and TA (ambient temperature). The maximum allowable power dissipation at any temperature is PDmax =(TJmax −TA)/θJA or the number given in the Absolute Maximum Ratings, whichever is lower. For this device, TJmax = 150˚C, and the typical thermal resistance (θJA) of the ADC12048 in the V package, when board mounted, is 55˚C/W, and in the VF package, when board mounted, is 67.8˚C/W. Note 5: Human body model, 100 pF discharged through 1.5 k Ω resistor. Note 6: Each input and output is protected by a nominal 6.5V breakdown voltage zener diode to GND; as shown below, input voltage magnitude up to 0.3V above VA+ or 0.3V below GND will not damage the ADC12048. There are parasitic diodes that exist between the inputs and the power supply rails and errors in the A/D conversion can occur if these diodes are forward biased by more than 50 mV. As an example, if VA+ is 4.50 VDC, full-scale input voltage must be ≤ 4.55 VDC to ensure accurate conversions. www.national.com 8 |
Numéro de pièce similaire - ADC12048CIV |
|
Description similaire - ADC12048CIV |
|
|
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 |