ADC MAX153 -can't turn it on

Thread Starter

t4tomer

Joined Aug 16, 2018
13
hi I am trying to turn on the ADC153 . can any one mayby explain what to connect to each pin ? so far I tried what is written in the datashit but it did not work .
 

Attachments

ericgibbs

Joined Jan 29, 2010
18,872
hi t4,
With only those few pins connected, the LM153 will not operate as expected.
Which micro-proc are you going to use to drive it.??
E
 

Thread Starter

t4tomer

Joined Aug 16, 2018
13
why do i need micro-proc ? I thought that this ADC work like the ADC 0804 of Texas instruments . I just want to turn it on for start tand then connect that outputs of this ADC to ALTERA FPGA
 

ericgibbs

Joined Jan 29, 2010
18,872
hi t,
Look at pages 8 and 9 of the datasheet, how are you going to generate Mode= 0 timed signals.?
E
AA1 15-Nov-18 13.34.gif
 
Last edited:

ericgibbs

Joined Jan 29, 2010
18,872
hi,
If you look at the 5th line of text on that Red Mode clip I posted, it states 'A conversion is initiated by driving /RD Low' that means the MAX expects a High to Low edge to start the conversion. Also /CS goes High at the end of the conversion.
To work the MAX must be pulsed by some external logic, which is usually a MCU.
E
 
Top