參數(shù)資料
型號： TLV2548QDWG4
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)： 16/43頁
文件大?。?/td> 989K
代理商： TLV2548QDWG4
TLV2544Q, TLV2548Q, TLV2548M
3V TO 5.5V, 12BIT, 200KSPS, 4/8CHANNEL, LOW POWER
SERIAL ANALOGTODIGITAL CONVERTERS WITH AUTOPOWERDOWN
SGLS119F FEBRUARY 2002 REVISED OCTOBER 2009
23
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range, VCC = VREFP =
3 V to 5.5 V, SCLK frequency = 20 MHz at 5 V, 15 MHz at 3 V (unless otherwise noted) (continued)
ac specifications
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SINAD
Signal-to-noise ratio +distortion
fI = 12 kHz at 200 KSPS
65
71
dB
THD
Total harmonic distortion
fI = 12 kHz at 200 KSPS
TA = 55°C
82
73
dB
THD
Total harmonic distortion
fI = 12 kHz at 200 KSPS
All other temperatures
82
75
dB
ENOB
Effective number of bits
fI = 12 kHz at 200 KSPS
11.6
Bits
SFDR
Spurious free dynamic range
fI = 12 kHz at 200 KSPS
84
75
dB
Analog input
Full power-bandwidth, 3 dB
1
MHz
Full-power bandwidth, 1 dB
500
kHz
reference specifications (0.1
F and 10 F between REFP and REFM pins)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Positive reference input voltage, REFP
VCC = 3 V to 5.5 V
2
VCC
V
Negative reference input voltage, REFM
VCC = 3 V to 5.5 V
0
2
V
VCC = 5.5 V
CS = 1,
SCLK = 0, (off)
100
M
Reference Input impedance
VCC = 5.5 V
CS = 0,
SCLK = 20 MHz (on)
20
25
k
Reference Input impedance
VCC = 3 V
CS = 1,
SCLK = 0 (off)
100
M
VCC = 3 V
CS = 0,
SCLK = 20 MHz (on)
20
25
k
Reference Input voltage difference, REFP REFM
VCC = 3 V to 5.5 V
2
VCC
V
VCC = 5.5 V
VREF SELECT = 4 V
3.85
4
4.15
V
Internal reference voltage, REFP REFM
VCC = 5.5 V
VREF SELECT = 2 V
1.925
2
2.075
V
Internal reference voltage, REFP REFM
VCC = 3 V
VREF SELECT = 2 V
1.925
2
2.075
V
Internal reference start-up time
VCC = 5.5 V, 3 V with 10 F compensation cap
20
ms
Internal reference temperature coefficient
VCC = 3 V to 5.5 V
16
40
PPM/
°C
Not assured
相關(guān)PDF資料
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5962-9957001QRA 4-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, CDIP20
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