(1) On ADS8284I with VCC = 5 V, VEE = �5 V, +VA = 5 V, +VBD = 5 V with
REFOUT connected to REFIN and BUSY connected to MXCLK.
BUS18_16 and BYTE are permanently grounded (logic low level)to get 18 bit
output data. C1 is permanently high (logic high), C2 and C3 are
permanently low (logic low) and AUTO is permanently high for auto mode. CS
and RD are toggled.
With this connection we would like to use two chnnels in auto mode.
(2) We are getting
3.76 Volt on internal reference output pin 11,
3.76 Volt on BUF-REF pin15
and 1.88 Volt on VCMO pin 14
but as per datsheet these should be 4 volt , 4 volt and 3 volt
respectively.
Please clarify????
3)When we give start of conversion on pin 2 we get busy signal but we get
fixed digital data either 0 or 5AD2 on giving read signal for all the
inputs (-vref to +vref). I have also observed that IC temperature is
somewhat higher.
We do not understand where is problem. Pl provide technical support for
getting correct digital outputs. Due to this problem our work is affected
very badly Please provide technical help at the earlist.
Regards
Atul Bhakay
