ADAS3022BCPZ(RevA) Просмотр технического описания (PDF) - Analog Devices
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ADAS3022BCPZ Datasheet PDF : 40 Pages
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Data Sheet
ADAS3022
TIMING SPECIFICATIONS
VDDH = 15 V ± 5%, VSSH = −15 V ± 5%, AVDD = DVDD = 5 V ± 5%, VIO = 1.8 V to AVDD, internal reference, VREF = 4.096 V,
fS = 1 MSPS. All specifications TMIN to TMAX, unless otherwise noted.
Table 3.
Parameter
Time Between Conversions
Warp Mode,1 CMS = 0
Normal Mode (Default), CMS = 1
Conversion Time: CNV Rising Edge to Data Available
Warp Mode, CMS = 0
Normal Mode (Default), CMS = 1
Auxiliary ADC Input Channel Acquisition Time
CNV Pulse Width
CNV High to Hold Time (Aperture Delay)
CNV High to Busy Delay
Safe Data Access Time During Conversion
Quiet Conversion Time (BUSY High)
Warp Mode, CMS = 0
Normal Mode (Default), CMS = 1
Data Access During Quiet Conversion Time
Warp Mode, CMS = 0
Normal Mode (Default), CMS = 1
SCK Period
SCK Low Time
SCK High Time
SCK Falling Edge to Data Valid
SCK Falling Edge to Data Valid Delay
VIO > 4.5 V
VIO > 3.0 V
VIO > 2.7 V
VIO > 2.3 V
VIO > 1.8 V
CS/RESET/PD Low to SDO
VIO > 4.5 V
VIO > 3.0 V
VIO > 2.7 V
VIO > 2.3 V
VIO > 1.8 V
CS/RESET/PD High to SDO High Impedance
DIN Valid Setup Time from SCK Rising Edge
DIN Valid Hold Time from SCK Rising Edge
CNV Rising to CS
RESET/PD High Pulse
Symbol
tCYC
tCONV
tACQ
tCH
tAD
tCBD
tDDC
tQUIET
tDDCA
tSCK
tSCKL
tSCKH
tSDOH
tSDOD
tEN
tDIS
tDINS
tDINH
tCCS
tRH
Min
Typ
Max
Unit
1
1000
μs
1.1
μs
825
ns
925
1000
ns
600
ns
10
ns
2
ns
520
ns
500
ns
400
ns
500
ns
200
ns
300
ns
15
ns
5
ns
5
ns
4
ns
12
ns
18
ns
24
ns
25
ns
37
ns
15
ns
16
ns
18
ns
23
ns
28
ns
25
ns
4
ns
4
ns
5
ns
5
ns
1 Exceeding the maximum time has an effect on the accuracy of the conversion (see the Conversion Modes section).
500µA IOL
TO SDO
CL
50pF
1.4V
500µA IOH
Figure 2. Load Circuit for Digital Interface Timing
30% VIO
tDELAY
70% VIO
2V OR VIO – 0.5V1
0.8V OR 0.5V2
tDELAY
2V OR VIO – 0.5V1
0.8V OR 0.5V2
12V IF VIO > 2.5V; VIO – 0.5V IF VIO < 2.5V.
20.8V IF VIO > 2.5V; 0.5V IF VIO < 2.5V.
Figure 3. Voltage Levels for Timing
Rev. A | Page 7 of 40
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