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ADS8322Y/2K Datasheet(PDF) 6 Page - Texas Instruments

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Part # ADS8322Y/2K
Description  16-Bit, 500kHz, MicroPower Sampling ANALOG-TO-DIGITAL CONVERTER
PDF  19 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

ADS8322Y/2K Datasheet(HTML) 6 Page - Texas Instruments

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1
CLOCK
Acquisition
CONVST
BUSY
BYTE
CS
RD
DB15-D8
DB7-D0
2
3
4
5
17
18
19
20
3
4
1
2
17
18
19
20
t
1
t
2
t
4
t
6
t
9
Acquisition
Conversion
t
ACQ
t
CONV
t
5
t
7
t
11
t
10
t
12
t
13
t
14
t
8
t
16
t
15
t
17
Bits15-8
Bits15-8
FF
t
18
t
19
t
3
Bits7-0
Bits7-0
Bits15-8
ADS8322
SBAS215A – JULY 2001 – REVISED JANUARY 2010
www.ti.com
TIMING INFORMATION
TIMING CHARACTERISTICS
(1) (2)
All specifications typical at –40°C to +85°C, +VD = +5V.
ADS8322
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
tCONV
Conversion Time
1.6
μs
tAQC
Acquisition Time
350
ns
t1
CLOCK Period
100
ns
t2
CLOCK High Time
40
ns
t3
CLOCK Low Time
40
ns
t4
CONVST Low to Clock High
10
ns
t5
CLOCK High to CONVST High
5
ns
t6
CONVST Low Time
20
ns
t7
CONVST Low to BUSY High
25
ns
t8
CS Low to CONVST Low
0
ns
t9
CONVST High
20
ns
t10
CLOCK Low to CONVST Low
0
ns
t11
CLOCK High to BUSY Low
25
ns
t12
CS High
0
ns
t13
CS Low to RD Low
0
ns
t14
RD High to CS High
0
ns
t15
RD Low Time
50
ns
t16
RD Low to Data Valid
40
ns
t17
Data Hold from RD High
5
ns
t18
BYTE Change to RD Low
(3)
0
ns
t19
RD High Time
20
ns
(1)
All input signals are specified with tR = tF = 5ns (10% to 90% of VDD) and timed from a voltage level of (VIL + VIH) /2.
(2)
See timing diagram, above.
(3)
BYTE is asynchronous; when BYTE is 0, bits 15 through 0 appear at DB15-DB0. When BUSY is 1, bits 15 through 8 appear on
DB7-DB0. RD may remain low between changes in BYTE.
6
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Copyright © 2001–2010, Texas Instruments Incorporated
Product Folder Link(s): ADS8322



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