參數(shù)資料
型號： TLV2548QDWRG4
廠商： TEXAS INSTRUMENTS INC
元件分類： ADC
英文描述： 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
封裝： PLASTIC, SOIC-20
文件頁數(shù)： 17/43頁
文件大?。?/td> 989K
代理商： TLV2548QDWRG4
TLV2544Q, TLV2548Q, TLV2548M
3V TO 5.5V, 12BIT, 200KSPS, 4/8CHANNEL, LOW POWER
SERIAL ANALOGTODIGITAL CONVERTERS WITH AUTOPOWERDOWN
SGLS119F FEBRUARY 2002 REVISED OCTOBER 2009
24
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
operating characteristics over recommended operating free-air temperature range, VCC = VREFP
= 3 V to 5.5 V, SCLK frequency = 20 MHz (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
EL
Integral linearity error (INL) (see Note 5)
±1.2
LSB
ED
Differential linearity error (DNL)
See Note 4
±1
LSB
Q Suffix
±2
EO
Offset error (see Note 6)
See Note 4
M Suffix, TA = 25°C
and 125
°C
4
+6
LSB
M Suffix, TA = 55°C
4
+6.2
Q Suffix
±1.1
±4
EFS
Full scale error (see Note 6)
See Note 4
M Suffix, TA = 25°C
and 125
°C
4
±1.1
+6
LSB
M Suffix, TA = 55°C
4
±1.1
+7.6
Self-test output code (see Table 1 and
SDI = B000h
800h
(2048D)
Self-test output code (see Table 1 and
Note 7)
SDI = C000h
000h (0D)
Note 7)
SDI = D000h
FFFh
(4095D)
Internal OSC
OSC = 3 MHz to 6 MHz
3.2
4.65
t(conv)
Conversion time
External SCLK
(14
DIV)
f
SCLK
s
t(sample) Sampling time
With a maximum of 1-k
input source
impedance
600
ns
All typical values are at TA = 25°C.
NOTES:
4. Analog input voltages greater than that applied to REFP convert as all ones (111111111111), while input voltages less than that
applied to REFM convert as all zeros (000000000000).
5. Linear error is the maximum deviation from the best straight line through the A/D transfer characteristics.
6. Zero error is the difference between 000000000000 and the converted output for zero input voltage: full-scale error is the difference
between 111111111111 and the converted output for full-scale input voltage.
7. Both the input data and the output codes are expressed in positive logic.
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