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AD7634 Fiches technique(PDF) 6 Page - Analog Devices

No de pièce AD7634
Description  18-Bit, 670 kSPS, Differential Programmable Input PulSAR ADC
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

AD7634 Fiches technique(HTML) 6 Page - Analog Devices

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Data Sheet
AD7634
Rev. B | Page 5 of 32
TIMING SPECIFICATIONS
AVDD = DVDD = 5 V; OVDD = 2.7 V to 5.5 V; VCC = 15 V; VEE = −15 V; VREF = 5 V; all specifications TMIN to TMAX, unless otherwise noted.
Table 3.
Parameter
Symbol
Min
Typ
Max
Unit
CONVERSION AND RESET (See Figure 35 and Figure 36)
Convert Pulse Width
t1
10
ns
Time Between Conversions
t2
Warp Mode/Normal Mode/Impulse Mode1
1.49/1.75/2.22
μs
CNVST Low to BUSY High Delay
t3
35
ns
BUSY High All Modes (Except Master Serial Read After Convert)
t4
Warp Mode/Normal Mode/Impulse Mode
1.18/1.43/1.68
μs
Aperture Delay
t5
2
ns
End of Conversion to BUSY Low Delay
t6
10
ns
Conversion Time
t7
Warp Mode/Normal Mode/Impulse Mode
1.18/1.43/1.68
μs
Acquisition Time, All modes
t8
310
ns
RESET Pulse Width
t9
10
ns
PARALLEL INTERFACE MODES (See Figure 37 and Figure 39)
CNVST Low to Data Valid Delay
t10
Warp Mode/Normal Mode/Impulse Mode
1.15/1.40/1.65
μs
Data Valid to BUSY Low Delay
t11
20
ns
Bus Access Request to Data Valid
t12
40
ns
Bus Relinquish Time
t13
2
15
ns
MASTER SERIAL INTERFACE MODES2 (See Figure 41 and Figure 42)
CS Low to SYNC Valid Delay
t14
10
ns
CS Low to Internal SDCLK Valid Delay2
t15
10
ns
CS Low to SDOUT Delay
t16
10
ns
CNVST Low to SYNC Delay, Read During Convert
t17
Warp Mode/Normal Mode/Impulse Mode
50/290/530
ns
SYNC Asserted to SDCLK First Edge Delay
t18
3
ns
Internal SDCLK Period3
t19
30
45
ns
Internal SDCLK High3
t20
15
ns
Internal SDCLK Low3
t21
10
ns
SDOUT Valid Setup Time3
t22
4
ns
SDOUT Valid Hold Time3
t23
5
ns
SDCLK Last Edge to SYNC Delay3
t24
5
ns
CS High to SYNC High-Z
t25
10
ns
CS High to Internal SDCLK High-Z
t26
10
ns
CS High to SDOUT High-Z
t27
10
ns
BUSY High in Master Serial Read After Convert3
t28
See Table 4
CNVST Low to SYNC Delay Read After Convert
Warp Mode/Normal Mode/Impulse Mode
t29
1.1/1.3/1.5
μs
SYNC Deasserted to BUSY Low Delay
t30
25
ns


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