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ADS5545 Datasheet(PDF) 15 Page - Texas Instruments

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Part No. ADS5545
Description  11-BIT, 200 MSPS ADC
Download  54 Pages
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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ADS5545 Datasheet(HTML) 15 Page - Texas Instruments

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RESET TIMING
t
1
t
3
t
2
PowerSupply
AVDD,DRVDD
RESET
SEN
ADS5517
SLWS203 – DECEMBER 2007
Typical values at 25
°C, min and max values across the full temperature range T
MIN = –40°C to TMAX = 85°C,
AVDD = DRVDD = 3.3 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
t1
Power-on delay
Delay from power-up of AVDD and DRVDD to RESET pulse active
5
ms
t2
Reset pulse width
Pulse width of active RESET signal
10
ns
t3
Register write delay
Delay from RESET disable to SEN active
25
ns
tPO
Power-up time
Delay from power-up of AVDD and DRVDD to output stable
6.5
ms
NOTE: A high-going pulse on RESET pin is required in serial interface mode in case of initialization through hardware reset.
For parallel interface operation, RESET has to be tied permanently HIGH.
Figure 6. Reset Timing Diagram
Copyright © 2007, Texas Instruments Incorporated
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