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參數資料
| 型號： | THS1408PFB |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 14-BIT, 1/3/8 MSPS DSP COMPATIBLE ANALOG-TO-DIGITAL CONVERTERS WITH INTERNAL REFERENCE AND PGA |
| 中文描述： | 14位，1/3/8 MSPS的數字信號處理器兼容模擬到數字的，具有內部參考和PGA變換器 |
| 文件頁數： | 3/22頁 |
| 文件大小： | 312K |
| 代理商： | THS1408PFB |
THS1401, THS1403, THS1408
14-BIT, 1/3/8 MSPS DSP COMPATIBLE ANALOG-TO-DIGITAL CONVERTERS
WITH INTERNAL REFERENCE AND PGA
SLAS248 – DECEMBER 1999
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Terminal Functions
TERMINAL
I/O
DESCRIPTION
NAME
A[1:0]
NO.
40, 41
I
Address input
AGND
7,8, 44,
45, 46
P
Analog ground
AVDD
CLK
2, 43, 47
P
Analog power supply
32
I
Clock input
Reference midpoint. This pin requires a 0.1-
μ
F capacitor to AGND.
Chip select input. Active low
CML
4
CS
37
I
DGND
9, 15, 25,
33, 34
P
Digital ground
DVDD
14, 20, 26,
30, 31, 42
P
Digital power supply
D[13:0]
11, 12, 13,
16, 17, 18,
19,21, 22,
23, 24, 27,
28, 29
I/O
Data inputs/outputs
NC
38, 39
No connection, do not use. Reserved
IN+
48
I
Positive differential analog input
IN–
1
I
Negative differential analog input
OE
35
I
Output enable. Active low
OV
10
O
Out of range output
Positive reference output. This pin requires a 0.1-
μ
F capacitor to AGND.
Negative reference output. This pin requires a 0.1-
μ
F capacitor to AGND.
Reference input. This pin requires a 1-
μ
F capacitor to AGND.
Write signal. Active low
REF+
5
O
REF–
6
O
VBG
3
I
WR
36
I
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
Supply voltage, (AV
DD
to AGND)
Supply voltage, (DV
DD
to DGND)
Reference input voltage range, VBG
Analog input voltage range
Digital input voltage range
Operating free-air temperature range, T
A
: C suffix
4V
4V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I suffix
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1.6 mm (1/16 inch) from case for 10 seconds
– 0.3 V to AV
DD
+ 0.3 V
– 0.3 V to AV
DD
+ 0.3 V
– 0.3 V to DV
DD
+ 0.3 V
0
°
C to 70
°
C
–40
°
C to 85
°
C
–65
°
C to 150
°
C
260
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
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