AD7634 Analog Devices, AD7634 Datasheet - Page 5

• Manufacturer Part Number: AD7634
• Manufacturer: Analog Devices

Specifications of AD7634

• Resolution (bits): 18bit
• # Chan: 1
• Sample Rate: 670kSPS
• Interface: Byte,Par,Ser,SPI
• Analog Input Type: Diff-Bip,Diff-Uni
• Ain Range: 10V p-p,20 V p-p,40 V p-p
• Adc Architecture: SAR
• Pkg Type: CSP,QFP

TIMING SPECIFICATIONS
AVDD = DVDD = 5 V; OVDD = 2.7 V to 5.5 V; VCC = 15 V; VEE = −15 V; V
Table 3.
Parameter
CONVERSION AND RESET (See Figure 35 and Figure 36)
PARALLEL INTERFACE MODES (See Figure 37 and Figure 39)
MASTER SERIAL INTERFACE MODES
Convert Pulse Width
Time Between Conversions
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
Acquisition Time, All modes
RESET Pulse Width
CNVST Low to Data Valid Delay
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 SDCLK Valid Delay
CS Low to SDOUT Delay
SDOUT Valid Setup Time
SDOUT Valid Hold Time
SDCLK Last Edge to SYNC Delay
CS High to SYNC High-Z
CS High to Internal SDCLK High-Z
CS High to SDOUT High-Z
BUSY High in Master Serial Read After Convert
CNVST Low to SYNC Delay Read After Convert
SYNC Deasserted to BUSY Low Delay
CNVST Low to SYNC Delay, Read During Convert
SYNC Asserted to SDCLK First Edge Delay
Internal SDCLK Period
Internal SDCLK High
Internal SDCLK Low
Warp Mode/Normal Mode/Impulse Mode
Warp Mode/Normal Mode/Impulse Mode
Warp Mode/Normal Mode/Impulse Mode
Warp Mode/Normal Mode/Impulse Mode
Warp Mode/Normal Mode/Impulse Mode
Warp Mode/Normal Mode/Impulse Mode
3
3
3
3
3
3
2
(See Figure 41 and Figure 42)
2
1
3
Rev. A | Page 5 of 32
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
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
REF
= 5 V; all specifications T
Min
10
1.49/1.75/2.22
10
310
10
20
2
3
30
15
10
4
5
5
Typ
2
50/290/530
See Table 4
1.1/1.3/1.5
25
MIN
to T
MAX
, unless otherwise noted.
Max
35
1.18/1.43/1.68
1.18/1.43/1.68
1.15/1.40/1.65
40
15
10
10
10
45
10
10
10
AD7634
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