Electronic Components Datasheet Search |
|
ISL55143IRZ Datasheet(PDF) 5 Page - Intersil Corporation |
|
ISL55143IRZ Datasheet(HTML) 5 Page - Intersil Corporation |
5 / 14 page 5 FN6230.0 July 17, 2006 DIGITAL OUTPUTS QAX, QBX Output Resistance RoutR 18 27 37 Ω Output Logic High Voltage VOH VOH = 5V, ISOURCE = 1mA 4.9 4.95 5.0 V Output Logic Low Voltage VOL VOL = 0V, ISINK = 1mA 0.00 0.05 0.1 V POWER SUPPLIES, STATIC CONDITIONS Positive Supply DC Current/Comparator ICC No input data +8.25 12.5 mA Negative Supply Current/Comparator IEE No input data -12.5 -8.25 mA Total Power Dissipation/Comparator P† Input data at 40MHz 670 mW †Total Power dissipation per comparator can be approximately calculated from the following: P = (VCC-VEE)*8.25mW + 90pF*(VCC-VEE)^2*f + CL*(VCC-VEE)^2*f where f is the operating frequency and CL is the load capacitance. Because the ISL55142 has two comparators, the power dissipation would be twice of P calculated from the above equation. The ISL55143 would be four times P. NOTES: 3. Lab characterization, room temperature, timing parameters matched stimulus/loads, channel-to-channel skew < 500ps, 1ns maximum by design 4. Note about ICC measurement input can approach 140mA (single comparator) at maximum pattern rates 5. Not 100% Tested Test Circuits and Waveforms FIGURE 1. COMPARATOR PROPAGATION DELAY AND TRANSITION TIME MEASUREMENT POINTS FIGURE 2. THREE-STATE WINDOW COMPARATOR FUNDAMENTALS Electrical Specifications Test Conditions: VCC = 12V, VEE = -3V, VOH = 5V, VOL = 0V, PD = VEE, CLOAD = 15pF, TA = 25°C, unless otherwise specified. (Continued) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS QAX, QBX 400mV 0V tPDLH VOH (≈VH) VOL (≈VL) 50% 50% tPDHL VINPX tR tF DATA = 1 DATA = 0 + - + - VINP QA QB CVA 2.4V CVB 0.4V VCC VEE Although there is no electrical difference between the CVA and CVB Inputs, if one defines CVA as being the high threshold and CVB being the low threshold, it becomes easier to understand the utilization of a dual threshold comparator. Essentially this enables the qualification of an incoming signal into three states. In the case pictured, the three states are Valid Low <0.4V, No-man’s-land (between 0.4 and 2.4V), Valid High >2.4V. Table 2 shows how the QA/QB truth table would be utilized in the real world. TABLE 2. QA/QB TRUTH TABLE VINP QA QB COMMENT <0.4V 0 0 Valid 0 >0.4 and <2.4V 0 1 Invalid >2.4V 1 1 Valid 1 ISL55141, ISL55142, ISL55143 |
Similar Part No. - ISL55143IRZ |
|
Similar Description - ISL55143IRZ |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | 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 |