EVAL-AD7622CB データシートの表示（PDF） - Analog Devices
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EVAL-AD7622CB Datasheet PDF : 28 Pages
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AD7622
TIMING SPECIFICATIONS
AVDD = DVDD = 2.5 V; OVDD = 2.3 V to 3.6 V; VREF = 2.5 V; all specifications TMIN to TMAX, unless otherwise noted.
Table 3.
Parameter
CONVERSION AND RESET (Refer to Figure 32 and Figure 33)
Convert Pulse Width
Time Between Conversions (Warp Mode2/Normal Mode3)
CNVST Low to BUSY High Delay
BUSY High All Modes (Except Master Serial Read After Convert)
Warp Mode/Normal Mode
Aperture Delay
End of Conversion to BUSY Low Delay
Conversion Time (Warp Mode/Normal Mode)
Acquisition Time (Warp Mode/Normal Mode)
RESET Pulse Width
RESET Low to BUSY High Delay4
BUSY High Time from RESET Low4
PARALLEL INTERFACE MODES (Refer to Figure 34 to Figure 37 )
CNVST Low to Data Valid Delay (Warp Mode/Normal Mode)
Data Valid to BUSY Low Delay
Bus Access Request to Data Valid
Bus Relinquish Time
MASTER SERIAL INTERFACE MODES5 (Refer to Figure 38 and Figure 39)
CS Low to SYNC Valid Delay
CS Low to Internal SCLK Valid Delay5
CS Low to SDOUT Delay
CNVST Low to SYNC Delay (Warp Mode/Normal Mode)
SYNC Asserted to SCLK First Edge Delay
Internal SCLK Period6
Internal SCLK High6
Internal SCLK Low6
SDOUT Valid Setup Time6
SDOUT Valid Hold Time6
SCLK Last Edge to SYNC Delay6
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 Convert6
CNVST Low to SYNC Asserted Delay (Warp Mode/Normal Mode)
SYNC Deasserted to BUSY Low Delay
SLAVE SERIAL INTERFACE MODES (Refer to Figure 41 and Figure 42)
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
See Notes on next page.
Symbol Min
Typ
Max
Unit
t1
15
t2
500/667
t3
701
ns
ns
23
ns
t4
t5
1
t6
10
t7
t8
140/182
t9
15
t38
10
t39
500
360/485 ns
ns
ns
360/485 ns
ns
ns
ns
ns
t10
t11
2
t12
t13
2
360/485 ns
ns
20
ns
15
ns
t14
t15
t16
t17
t18
2
t19
8
t20
2
t21
3
t22
1
t23
0
t24
0
t25
t26
t27
t28
t29
t30
10
ns
10
ns
10
ns
15/135
ns
ns
20
ns
ns
ns
ns
ns
ns
10
ns
10
ns
10
ns
See Table 4
ns
375/500
ns
13
ns
t31
5
t32
1
t33
5
t34
5
t35
12.5
t36
5
t37
5
ns
8
ns
ns
ns
ns
ns
ns
Rev. A | Page 5 of 28
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