參數資料
型號: TLC549C
廠商: Texas Instruments, Inc.
英文描述: 8-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL
中文描述: 8位模擬數字轉換器與串行控制
文件頁數: 3/12頁
文件大?。?/td> 167K
代理商: TLC549C
TLC548C, TLC548I, TLC549C, TLC549I
8-BIT ANALOG-TO-DIGITAL CONVERTERS
WITH SERIAL CONTROL
SLAS067C – NOVEMBER 1983 – REVISED SEPTEMBER 1996
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
operating sequence
ten
ten
tsu(CS)
B7
B0
B1
B2
B3
B4
B5
B6
B7
Conversion Data B
MSB
MSB
LSB
Hi-Z State
MSB
LSB
(see Note B)
MSB
Previous Conversion Data A
A7
A7
A6
A5
A4 A3
A2
A1
A0
Hi-Z State
Don’t
1
1
(see Note A)
tconv
tsu(CS)
Access
Cycle B
8
8
7
6
5
4
3
2
7
6
5
4
3
2
CLOCK
I/O
CS
OUT
DATA
Care
Sample
Cycle B
Access
Cycle C
Sample
Cycle C
twH(CS)
NOTES: A. The conversion cycle, which requires 36 internal system clock periods (17
μ
s maximum), is initiated with the eighth I/O clock pulse
trailing edge after CS goes low for the channel whose address exists in memory at the time.
B. The most significant bit (A7) is automatically placed on the DATA OUT bus after CS is brought low. The remaining seven bits (A6–A0)
are clocked out on the first seven I/O clock falling edges. B7–B0 follows in the same manner.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
CC
(see Note 1)
Input voltage range at any input
Output voltage range
Peak input current range (any input)
Peak total input current range (all inputs)
Operating free-air temperature range, T
A
(see Note 2): TLC548C, TLC549C
6.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–0.3 V to V
CC
+ 0.3 V
–0.3 V to V
CC
+
0.3 V
±
10 mA
±
30 mA
0
°
C to 70
°
C
–40
°
C to 85
°
C
–65
°
C to 150
°
C
. . . . . . . . . . . . .
. . . . . . . . . . . .
TLC548I, TLC549I
Storage temperature range, T
stg
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
260
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NOTES:
1. All voltage values are with respect to the network ground terminal with the REF– and GND terminals connected together, unless
otherwise noted.
2. The D package is not recommended below –40
°
C.
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