AD7641 Analog Devices, AD7641 Datasheet - Page 23

• Manufacturer Part Number: AD7641
• Description: 18-Bit, 2 MSPS SAR ADC
• Manufacturer: Analog Devices

Specifications of AD7641

• Resolution (bits): 18bit
• # Chan: 1
• Sample Rate: 2MSPS
• Interface: Byte,Par,Ser,SPI
• Analog Input Type: Diff-Bip
• Ain Range: (2Vref) p-p
• Adc Architecture: SAR
• Pkg Type: CSP,QFP

SDOUT
CS, RD
CNVST
SYNC
BUSY
SCLK
SDOUT
t
CS, RD
CNVST
3
SYNC
BUSY
SCLK
t
16
t
t
t
14
15
16
t
29
Figure 36. Master Serial Data Timing for Reading (Read Previous Conversion During Convert)
t
t
EXT/INT = 0
14
15
t
X
17
t
t
22
18
X
t
22
Figure 35. Master Serial Data Timing for Reading (Read After Convert)
t
EXT/INT = 0
1
t
20
t
D17
3
t
1
20
D17
RDC/SDIN = 0
1
t
19
t
t
t
18
19
21
D16
t
t
D16
2
23
21
t
2
23
t
Rev. 0 | Page 23 of 28
28
RDC/SDIN = 1
INVSCLK = INVSYNC = 0
3
3
16
D2
D2
INVSCLK = INVSYNC = 0
16
DIVSCLK[1:0] = 0
17
D1
17
D1
t
24
18
t
30
18
D0
D0
t
24
t
t
25
26
t
27
t
t
t
25
26
27
AD7641