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TLV2548MFKB 数据表(PDF) 23 Page - Texas Instruments

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部件名 TLV2548MFKB
功能描述  3-V TO 5.5-V, 12-BIT, 200-KSPS, 4-/8-CHANNEL, LOW-POWER SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTOPOWER-DOWN
PDF  41 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

TLV2548MFKB 数据表(HTML) 23 Page - Texas Instruments

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TLV2544Q, TLV2548Q, TLV2548M
3-V TO 5.5-V, 12-BIT, 200-KSPS, 4-/8-CHANNEL, LOW-POWER
SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTOPOWER-DOWN
SGLS119C – FEBRUARY 2002 – REVISED OCTOBER 2002
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
µF and 10 µF 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 5V
CS = 1,
SCLK = 0, (off)
100
M
Ω
Reference Input impedance
VCC = 5.5 V
CS = 0,
SCLK = 20 MHz (on)
20
25
k
Ω
Reference Input impedance
VCC =3V
CS = 1,
SCLK = 0 (off)
100
M
Ω
VCC = 3 V
CS = 0,
SCLK = 20 MHz (on)
20
25
k
Ω
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
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 µF compensation cap
20
ms
Internal reference temperature coefficient
VCC = 3 V to 5.5 V
16
40†
PPM/
°C
† Not assured



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