ADS8322YB Burr-Brown Corporation, ADS8322YB Datasheet - Page 4

• Manufacturer Part Number: ADS8322YB
• Description: 16-Bit/ 500kHz/ MicroPower Sampling ANALOG-TO-DIGITAL CONVERTER
• Manufacturer: Burr-Brown Corporation

TIMING DIAGRAM
TIMING CHARACTERISTICS
All specifications typical at –40 C to +85 C, +V
NOTES: (1) All input signals are specified with t
(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.
4
PARAMETER
Conversion Time
Acquisition Time
CLOCK Period
CLOCK High Time
CLOCK Low Time
CONVST Low to Clock High
CLOCK High to CONVST High
CONVST Low Time
CONVST Low to BUSY High
CS Low to CONVST Low
CONVST High
CLOCK Low to CONVST Low
CLOCK High to BUSY Low
CS High
CS Low to RD Low
RD High to CS High
RD Low Time
RD Low to Data Valid
Data Hold from RD High
BYTE Change to RD Low
RD High Time
CONVST
DB15-D8
DB7-D0
CLOCK
BUSY
BYTE
CS
RD
Acquisition
t
4
t
8
t
6
1
t
2
t
t
7
1
t
3
t
2
5
(3)
3
Conversion
t
CONV
4
5
D
R
= +5V.
= t
F
= 5ns (10% to 90% of V
t
13
17
t
16
t
11
18
Acquisition
SYMBOL
Bits 15-8
Bits 7-0
t
t
t
9
15
ACQ
t
CONV
t
ACQ
19
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
(1)(2)
10
11
12
13
14
15
16
17
18
19
1
2
3
4
5
6
7
8
9
20
t
t
14
17
DD
1
t
) and timed from a voltage level of (V
12
t
10
2
3
MIN
100
40
40
10
20
20
50
40
20
5
0
0
0
0
0
5
0
4
ADS8322A
TYP
17
MAX
1.6
0.4
25
25
18
Bits 15-8
IL
Bits 7-0
+ V
19
MIN
IH
) /2. (2) See timing diagram, above.
20
t
19
ADS8322B
TYP
t
18
Bits 15-8
FF
MAX
ADS8322
SBAS215
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
s
s