AD7366-5ARUZ AD [Analog Devices], AD7366-5ARUZ Datasheet - Page 15

• Manufacturer Part Number: AD7366-5ARUZ
• Description: True Bipolar Input, Dual 1us, 12-Bit, 2-Channel SAR ADC
• Manufacturer: AD [Analog Devices]

AD7366
POWER-UP TIMES
The AD7366 has one power down mode, which has already
been described in detail. This section deals with the power-up
time required when coming out of this modes. It should be
noted that the power-up time, as explained in this section,
applies with the recommended capacitors in place on the D
and D
be brought high and remain high for a minimum of 100μs, as
shown in Figure 8.
When power supplies are first applied to the AD7366, the ADC
may power up with CONVST in either the low or high logic
state. Before attempting a valid conversion CONVST must be
brought high and remain high for the recommended power up
time of 70μs, it can then be brought low to initiate a conversion.
CAP
B pins. To power up from shut-down, CONVST must
CONVST
SCLK
BUSY
CS
t 2
t convert
Figure 8. Auto-Shutdown Mode
CAP
Rev. PrG | Page 15 of 17
ENTERS SHUT-DOWN
A
1
t 3
With the AD7366 no dummy conversion is required before
valid data can be read from the
place the part in shut-down mode when the supplies are first
applied, then the AD7366 must be powered up as explained
about and a conversion initiated, but CONVST should remain
in the logic low state and when the BUSY signal goes low thus
the part enters shut-down.
Once supplies are applied to the AD7366, enough time must be
allowed for any external reference to power up and charge the
various reference buffer decoupling capacitors to their final values.
12
SERIAL READ OPERATION
Preliminary Technical Data
D
OUT
t power-up
pins. If it is intended to