AD7653 Analog Devices, AD7653 Datasheet - Page 5

• Manufacturer Part Number: AD7653
• Manufacturer: Analog Devices

Specifications of AD7653

• Resolution (bits): 16bit
• # Chan: 1
• Sample Rate: 1MSPS
• Interface: Par,Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: Uni (Vref),Uni 2.5V
• Adc Architecture: SAR
• Pkg Type: CSP,QFP

TIMING SPECIFICATIONS
Table 3. –40°C to +85°C, AVDD = DVDD = 5 V, OVDD = 2.7 V to 5.25 V, unless otherwise noted
Parameter
Refer to Figure 26 and Figure 27
Refer to Figure 28, Figure 29, and
Refer to Figure 32 and Figure 33 (Master Serial Interface Modes)
Refer to
1In Warp mode only, the maximum time between conversions is 1 ms; otherwise, there is no required maximum time.
2
3
In serial interface modes, the SYNC, SCLK, and SDOUT timings are defined with a maximum load C
In Serial Master Read during Convert Mode. See
Convert Pulse Width
Time between Conversions (Warp Mode/Normal Mode/Impulse Mode)
CNVST LOW to BUSY HIGH Delay
BUSY HIGH All Modes Except Master Serial Read after Convert
Aperture Delay
End of Conversion to BUSY LOW Delay
Conversion Time (Warp Mode/Normal Mode/Impulse Mode)
Acquisition Time
RESET Pulse Width
CNVST LOW to DATA Valid Delay (Warp Mode/Normal Mode/Impulse Mode)
DATA Valid to BUSY LOW Delay
Bus Access Request to DATA Valid
Bus Relinquish Time
CS LOW to SYNC Valid Delay
CS LOW to Internal SCLK Valid Delay
CS LOW to SDOUT Delay
CNVST LOW to SYNC Delay (Warp Mode/Normal Mode/Impulse Mode)
SYNC Asserted to SCLK First Edge Delay
Internal SCLK Period
Internal SCLK HIGH
Internal SCLK LOW
SDOUT Valid Setup Time
SDOUT Valid Hold Time
SCLK Last Edge to SYNC Delay
CS HIGH to SYNC HI-Z
CS HIGH to Internal SCLK HI-Z
CS HIGH to SDOUT HI-Z
BUSY HIGH in Master Serial Read after Convert
CNVST LOW to SYNC Asserted Delay
SYNC Deasserted to BUSY LOW Delay
External SCLK Setup Time
External SCLK Active Edge to SDOUT Delay
SDIN Setup Time
SDIN Hold Time
External SCLK Period
External SCLK HIGH
External SCLK LOW
(Warp Mode/Normal Mode/Impulse Mode)
(Warp Mode/Normal Mode/Impulse Mode)
(Warp Mode/Normal Mode/Impulse Mode)
Figure 34
and
3
3
Figure 35
3
3
3
3
(Slave Serial Interface Modes)
Figure 30
2
Table 4
(Parallel Interface Modes)
for Serial Master Read after Convert mode.
3
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2
2
1
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
L
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
of 10 pF; otherwise, the load is 60 pF maximum.
Min
10
1/1.25/1.5
10
250
10
12
5
3
25
12
7
4
2
3
5
3
5
5
25
10
10
Typ
2
25/275/525
See Table 4
0.75/1/1.25
25
Max
35
0.75/1/1.25
0.75/1/1.25
0.75/1/1.25
45
15
10
10
10
40
10
10
10
18
AD7653
Unit
ns
µs
ns
µs
ns
ns
µs
ns
ns
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
ns
ns
ns
ns
ns
ns
ns
ns