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參數(shù)資料
| 型號： | TLV2548MPWREP |
| 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： | GREEN, PLASTIC, TSSOP-20 |
| 文件頁數(shù)： | 15/37頁 |
| 文件大?。?/td> | 915K |
| 代理商： | TLV2548MPWREP |
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SLAS668 – OCTOBER 2009
www.ti.com
OPERATING CHARACTERISTICS
over operating free-air temperature range, VCC = VREFP = 3 V to 5.5 V, VREFM = 0 V, SCLK frequency = 20 MHz at 5 V,
15 MHz at 3 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP (1) MAX UNIT
EL
Integral linearity error (INL)(2)
±1.2
LSB
ED
Differential linearity error (DNL)
See (3)
±1.2
LSB
TA = 25°C and
–4
6
125°C
EO
Offset error (4)
See (3)
LSB
TA = –55°C
–4
6.2
TA = 25°C and
–4
6
125°C
EFS
Full scale error (4)
See (3)
LSB
TA = –55°C
–4
7.6
800h
SDI = B000h
(2048D)
Self–test output code (5)
SDI = C000h
000h (0D)
FFFh
SDI = D000h
(4095D)
Internal OSC
3.2
4.5
t(conv)
Conversion time
μs
(14 x DIV) /
External SCLK
fSCLK
With a maximum of 1-kW input source
t(sample)
Sampling time
600
ns
impedance
(1)
All typical values are at TA = 25°C.
(2)
Linear error is the maximum deviation from the best straight line through the A/D transfer characteristics.
(3)
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).
(4)
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.
(5)
Both the input data and the output codes are expressed in positive logic.
22
Copyright 2009, Texas Instruments Incorporated
Product Folder Link(s): TLV2548-EP
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