MAX11040 Maxim Integrated Products, MAX11040 Datasheet - Page 16

• Manufacturer Part Number: MAX11040
• Description: Sigma-Delta ADC
• Manufacturer: Maxim Integrated Products

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24-Bit, 4-Channel, Simultaneous-Sampling,
Cascadable, Sigma-Delta ADC
Figure 9. CASCIN and CASCOUT Timing Diagram
Figure 10. XIN Clock, CLKOUT, SYNC, and DRDYOUT Timing
Diagram
16
(DEVICE n+1)
(DEVICE n)
CASCOUT
______________________________________________________________________________________
CASCIN
XIN CLOCK
DRDYOUT
SCLK
CLKOUT
SYNC
t
XP
t
SS
t
XCD
t
SYN
t
HS
t
COT
t
SC
t
XPW
t
XDRDY
Table 2. Command Bytes
The MAX11040 includes four registers accessible by 7
command bytes. The command bytes provide read
and write access to the Data Rate Control register, the
Sampling Instant Control register, and the Configuration
register and read access to the Data register. See
Table 2. Figure 9 shows the CASCIN and CASOUT
timing diagram. Figure 10 is the XIN clock, CLKOUT,
SYNC, and DRDYOUT timing diagram.
*All data lengths are proportional to the number of cascaded
devices except for reads and writes to the Data Rate Control
register. When accessing the Data Rate Control register, the
data length is fixed at 16 bits. These 16 bits are automatical-
ly written to all cascaded devices.
**n is the total number of cascaded devices.
R/W
0
1
0
1
0
1
1
ADDRESS
1000000
1000000
1010000
1010000
1100000
1100000
1110000
[A6:A0]
32 x n** bits
LENGTH*
32 x n bits
96 x n bits
8 x n bits
8 x n bits
16 bits
16 bits
DATA
Write Sampling Instant
Control Register
Read Sampling Instant
Control Register
Write Data Rate Control
Register
Read Data Rate Control
Register
Write Configuration
Register
Read Configuration
Register
Read Data Register
FUNCTION
Registers