MAX1028 Maxim Integrated Products, MAX1028 Datasheet - Page 18

• Manufacturer Part Number: MAX1028
• Description: (MAX1030 / MAX1028 / MAX1026) 10-Bit 300ksps ADCs with FIFO / Temp Sensor / Internal Reference
• Manufacturer: Maxim Integrated Products

In clock mode 10, the wake-up, acquisition, conversion,
and shutdown sequences are initiated by writing an
input data byte to the conversion register, and are per-
formed automatically using the internal oscillator. This
is the default clock mode upon power-up. See Figure 6
for clock mode 10 timing.
10-Bit 300ksps ADCs with FIFO,
Temp Sensor, Internal Reference
Figure 5. Clock Mode 01
18
Figure 6. Clock Mode 10
CNVST
SCLK
DOUT
EOC
CS
DIN
DOUT
SCLK
EOC
CS
______________________________________________________________________________________
(ACQUISITION1)
Conversions Using the Serial Interface
THE CONVERSION BYTE BEGINS THE ACQUISITION. CNVST IS NOT REQUIRED. X = DON'T CARE.
REQUEST MULTIPLE CONVERSIONS BY SETTING CNVST LOW FOR EACH CONVERSION. X = DON'T CARE.
(CONVERSION1)
Performing Conversions in Clock Mode 10
Internally Timed Acquisitions and
(ACQUISITION2)
(CONVERSION BYTE)
(CONVERSION2)
(UP TO 514 INTERNALLY CLOCKED ACQUISITIONS AND CONVERSIONS)
MSB1
MSB1
Initiate a scan by writing a byte to the conversion regis-
ter. The MAX1026/MAX1028/MAX1030 then power up,
scan all requested channels, store the results in the
FIFO, and shut down. After the scan is complete, EOC
is pulled low and the results are available in the FIFO. If
a temperature measurement is requested, the tempera-
ture result precedes all other FIFO results. EOC stays
low until CS is pulled low again.
LSB1
LSB1
MSB2
MSB2