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ADS8322 Datasheet(PDF) 4 Page - Burr-Brown (TI)

[Old version datasheet] Texas Instruments acquired Burr-Brown Corporation. Click here to check the latest version.
Part No. ADS8322
Description  16-Bit, 500kHz, MicroPower Sampling ANALOG-TO-DIGITAL CONVERTER
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Maker  BURR-BROWN [Burr-Brown (TI)]
Homepage  http://www.burr-brown.com
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ADS8322 Datasheet(HTML) 4 Page - Burr-Brown (TI)

 
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ADS8322
4
SBAS215
1
CLOCK
Acquisition
CONVST
BUSY
BYTE
CS
RD
DB15-D8
DB7-D0
2345
17
18
19
20
34
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
Bits 15-8
Bits 15-8
FF
t
18
t
19
t
3
Bits 7-0
Bits 7-0
Bits 15-8
ADS8322A
ADS8322B
PARAMETER
SYMBOL
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
Conversion Time
tCONV
1.6
µs
Acquisition Time
tACQ
0.4
µs
CLOCK Period
t1
100
ns
CLOCK High Time
t2
40
ns
CLOCK Low Time
t3
40
ns
CONVST Low to Clock High
t4
10
ns
CLOCK High to CONVST High
t5
5
ns
CONVST Low Time
t6
20
ns
CONVST Low to BUSY High
t7
25
ns
CS Low to CONVST Low
t8
0
ns
CONVST High
t9
20
ns
CLOCK Low to CONVST Low
t10
0
ns
CLOCK High to BUSY Low
t11
25
ns
CS High
t12
0
ns
CS Low to RD Low
t13
0
ns
RD High to CS High
t14
0
ns
RD Low Time
t15
50
ns
RD Low to Data Valid
t16
40
ns
Data Hold from RD High
t17
5
ns
BYTE Change to RD Low(3)
t18
0
ns
RD High Time
t19
20
ns
NOTES: (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.
TIMING CHARACTERISTICS(1)(2)
All specifications typical at –40
°C to +85°C, +V
D = +5V.
TIMING DIAGRAM


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