AD7654 Analog Devices, AD7654 Datasheet - Page 21

• Manufacturer Part Number: AD7654
• Manufacturer: Analog Devices

Specifications of AD7654

• Resolution (bits): 16bit
• # Chan: 4
• Sample Rate: 500kSPS
• Interface: Par,Ser,SPI
• Analog Input Type: SE-Uni
• Ain Range: Uni (Vref) x 2,Uni 5.0V
• Adc Architecture: SAR
• Pkg Type: CSP,QFP

SDOUT
CNVST
CS, RD
BUSY
SYNC
SCLK
EOC
CS, RD
CNVST
SDOUT
BUSY
SYNC
SCLK
EOC
t
23
t
t
3
10
t
t
t
10
Figure 30. Master Serial Data Timing for Reading (Read Previous Conversion During Convert)
21
22
t
X
t
24
23
t
t
25
29
t
11
t
t
t
22
21
Figure 29. Master Serial Data Timing for Reading (Read After Conversion)
EXT/INT = 0
1
t
36
t
CH A
D15
3
t
t
1
27
12
EXT/INT = 0
t
26
t
28
X
t
13
t
25
t
CH A
29
D14
t
2
30
t
11
CH A
1
D15
RDC/SDIN = 1
t
26
t
RDC/SDIN = 0
Rev. B | Page 21 of 28
28
CH A
2
D14
t
30
16
CH A D0
t
35
t
16
27
CH A
D0
t
12
INVSCLK = INVSYNC = 0
t
26
INVSCLK = INVSYNC = 0
CH B
D15
CH B
17
D15
1
CH B
D14
CH B
31
t
D1
2
13
32
A/B = 1
CH B
A/B = 1
t
D0
31
t
37
t
31
16
CH B D0
t
t
t
33
34
32
t
t
t
33
34
32
AD7654