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參數資料
| 型號： | TLV0831CD |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | ADC |
| 英文描述： | 1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8 |
| 封裝： | GREEN, MS-012AA, SOIC-8 |
| 文件頁數： | 16/19頁 |
| 文件大?。?/td> | 489K |
| 代理商： | TLV0831CD |
TLV0831C, TLV0831I
TLV0832C, TLV0832I
3VOLT 8BIT ANALOGTODIGITAL CONVERTERS WITH SERIAL CONTROL
SLAS148 SEPTEMBER 1996
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
electrical characteristics over recommended range of operating free-air temperature, VCC = 3.3 V,
f(CLK) = 250 kHz (unless otherwise noted)
digital section
PARAMETER
TEST CONDITIONS
C SUFFIX
I SUFFIX
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
VOH
High-level output voltage
VCC = 3 V,
IOH = 360 A
2.8
2.4
V
VOH
High-level output voltage
VCC = 3 V,
IOH = 10 A
2.9
2.8
V
VOL
Low-level output voltage
VCC = 3 V,
IOL = 1.6 mA
0.34
0.4
V
IIH
High-level input current
VIH = 3.6 V
0.005
1
0.005
1
A
IIL
Low-level input current
VIL = 0
0.005
1
0.005
1
A
IOH
High-level output
(source) current
At VOH, DO= 0 V, TA = 25°C
6.5
15
6.5
15
mA
IOL
Low-level output (sink) current
At VOL, DO= 0 V,
TA = 25°C
8
16
8
16
mA
IOZ
High-impedance-state output
VO = 3.3 V,
TA = 25°C
0.01
3
0.01
3
A
IOZ
High-impedance-state output
current (DO)
VO = 0,
TA = 25°C
0.01
3
0.01
3
A
Ci
Input capacitance
5
pF
Co
Output capacitance
5
pF
All parameters are measured under open-loop conditions with zero common-mode input voltage.
All typical values are at VCC = 3.3 V, TA = 25°C.
analog and converter section
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIC
Common-mode input voltage
See Note 3
0.05
to
VCC+ 0.05
V
On channel
VI = 3.3 V
1
II(stdby)
Standby input current (see Note 4)
Off channel
VI = 0
1
A
II(stdby)
Standby input current (see Note 4)
On channel
VI = 0
1
A
Off channel
VI = 3.3 V
1
ri(REF)
Input resistance to REF
1.3
2.4
5.9
k
All parameters are measured under open-loop conditions with zero common-mode input voltage.
All typical values are at VCC = 3.3 V, TA = 25°C.
NOTES:
3. When channel IN is more positive than channel IN+, the digital output code is 0000 0000. Connected to each analog input are two
on-chip diodes that conduct forward current for analog input voltages one diode drop above VCC. Care must be taken during testing
at low VCC levels (3 V) because high-level analog input voltage (3.6 V) can, especially at high temperatures, cause the input diode
to conduct and cause errors for analog inputs that are near full scale. As long as the analog voltage does not exceed the supply
voltage by more than 50 mV, the output code is correct. To achieve an absolute 0- to 3.3-V input range requires a minimum VCC of
3.25 V for all variations of temperature and load.
4. Standby input currents go in or out of the on or off channels when the A/D converter is not performing conversion and the clock is
in a high or low steady-state conditions.
total device
PARAMETER
MIN
TYP
MAX
UNIT
ICC
Supply current
TLV0831
0.2
0.75
mA
ICC
Supply current
TLV0832
1.5
2.5
mA
All typical values are at VCC = 3.3 V, TA = 25°C.
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