Electronic Components Datasheet Search |
|
ADC10221CIVT Datasheet(PDF) 7 Page - National Semiconductor (TI) |
|
|
ADC10221CIVT Datasheet(HTML) 7 Page - National Semiconductor (TI) |
7 / 16 page AC Electrical Characteristics (Continued) The following specifications apply for V A = +5.0VDC,VD I/O = 5.0VDC,VREF+ = +3.5VDC,VREF− = +1.5VDC,fCLK = 15 MHz, t rc = tfc = 5 ns, RS = 25Ω.CL (data bus loading) = 20 pF, Boldface limits apply for TA = TMIN to TMAX: all other limits TA = 25˚C(Note 7) Symbol Parameter Conditions Typical (Note 8) Limits (Note 9) Units (Limits) t r,tf Output Rise and Fall Times 10 ns t OD Fall of CLK to data valid 20 25 ns(max) t OH Output Data Hold Time 12 ns t DIS Rising edge of OE to valid data From output High, 2K to Ground 25 ns From output Low, 2K to V D I/O 18 ns t EN Falling edge of OE to valid data 1K to V CC 25 ns t VALID Data valid time 40 ns t AJ Aperture Jitter <30 ps Full Scale Step Response t r = 10ns 1 conversion Overrange Recovery Time V IN step from (V REF+ +100 mV) to (V REF−) 1 conversion t WU PD low to 1/2 LSB accurate conversion (Wake-Up time) 700 ns Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is func- tional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed speci- fications 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 = AGND = DGND = 0V, unless otherwise specified. Note 3: When the input voltage at any pin exceeds the power supplies ( VIN < AGND or VIN > VA or VD), the current at that pin should be limited to 25 mA. The 50 mA maximum package input current rating limits the number of pins that can safely exceed the power supplies with an input current of 25 mA to two. Note 4: The absolute maximum junction temperature (TJmax) for this device is 150˚C. The maximum allowable power dissipation is dictated by TJmax, the junction-to-ambient thermal resistance ( θJA), and the ambient temperature (TA), and can be calculated using the formula PDMAX=(TJmax - TA)/θJA. In the 32-pin TQFP, θJA is 69˚C/W, so PDMAX = 1,811 mW at 25˚C and 942 mW at the maximum operating ambient temperature of 85˚C. Note that the power dissipation of this device under normal operation will typically be about 110 mW (98 mW quiescent power+2mW reference ladder power +10 mW due to 10 TTL load on each digital output). The values for maximum power dissipation listed above will be reached only when the ADC10221 is operated in a severe fault condition (e.g. when input or output pins are driven beyond the power supply voltages, or the power supply polarity is reversed). Obviously, such conditions should always be avoided. Note 5: Human body model is 100 pF capacitor discharged through a 1.5k Ω resistor. Machine model is 220 pF discharged through ZERO Ω. Note 6: See AN450, ″Surface Mounting Methods and Their Effect on Product Reliability″, or the section entitled ″Surface Mount″ found in any post 1986 National Semiconductor Linear Data Book, for other methods of soldering surface mount devices. Note 7: The inputs are protected as shown below. Input voltage magnitudes up to 500mV beyond the supply rails will not damage this device. However, errors in the A/D conversion can occur if the input goes above VA or below AGND by more than 300 mV. Note 8: Typical figures are at TA = TJ = 25˚C, and represent most likely parametric norms. Note 9: Tested limits are guaranteed to National’s AOQL (Average Outgoing Quality Level). Note 10: When the input signal is between VREF+ and (VA + 300mV), the output code will be 3FFh, or all 1s. When the input signal is between −300 mV and VREF−, the output code will be 000h, or all 0s. DS101038-11 DS101038-12 DS101038-24 www.national.com 7 |
Similar Part No. - ADC10221CIVT |
|
Similar Description - ADC10221CIVT |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | 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 |