Electronic component search and free download site.
Transistors,MosFET ,Diode,Integrated circuits

ADS8331 View Datasheet(PDF) - Texas Instruments

Part NameDescriptionManufacturer
ADS8331 2.7V~5.5V, 16 Bit 500KSPS Low Power Serial ADC / Low-Power, 16-Bit, 500kSPS, 4-/8-Channel Unipolar Input TI
Texas Instruments TI
ADS8331 Datasheet PDF : 39 Pages
First Prev 21 22 23 24 25 26 27 28 29 30 Next Last
ADS8331
ADS8332
SBAS363 – DECEMBER 2009
INT
CS1
MICROCONTROLLER
CS2
CS3
SDO SCLK
www.ti.com
SDI
SDI SCLK CONVST
CS ADS8331/32
#1
EOC/INT
SDO
SDI SCLK CONVST
CS ADS8331/32
#2
CDI
SDO
SDI SCLK CONVST
CS ADS8331/32
#3
CDI
SDO
Program Device #1: CFR_D5 = ‘1’
Program Devices #2 and #3: CFR_D5 = ‘0’
Figure 46. Multiple Converters Connected Using Daisy-Chain Mode
When multiple converters are used in daisy-chain mode, the first converter is configured in regular mode while
the rest of the converters downstream are configured in daisy-chain mode. When a converter is configured in
daisy-chain mode, the CDI input data go straight to the output register. Therefore, the serial input data passes
through the converter with either a 16 SCLK (if the TAG feature is disabled) or 24 SCLK delay, as long as CS is
active. See Figure 47 for detailed timing. In this timing diagram, the conversion in each converter is performed
simultaneously.
Manual Trigger, Read While Sampling
(Use internal CCLK, EOC active low, and TAG mode disabled)
CONVST #1
CONVST #2
CONVST #3
EOC #1
(active low)
CS #1
SCLK #1
SCLK #2
SCLK #3
SDO #1
CDI #2
CS #2
CS #3
Conversion N
tCONV = 18 CCLK
High-Z
1. . . . . . . . . . . . . .16
Conversion N
from Device #1
tSAMPLE1 = 3 CCLK min
1. . . . . . . . . . . . . .16
1. . . . . . . . . . . . . .16
tSU2
High-Z
tSU2
SDO #2
CDI #3
High-Z
Conversion N
from Device #2
Conversion N
from Device #1
High-Z
SDO #3
High-Z
Conversion N
from Device #3
Conversion N
from Device #2
Conversion N
from Device #1
High-Z
SDI #1
SDI #2
SDI #3
Don't Care
Configure
Read Data
Read Data
Don't Care
Figure 47. Simplified Dasiy-Chain Mode Timing with Shared CONVST and Continuous CS
30
Submit Documentation Feedback
Product Folder Link(s): ADS8331 ADS8332
Copyright © 2009, Texas Instruments Incorporated
Direct download click here

 

Share Link : 
All Rights Reserved© datasheetq.com 2015 - 2020  ] [ Privacy Policy ] [ Request Datasheet  ] [ Contact Us ]