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參數資料
| 型號： | TLV2548CDWRG4 |
| 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, SOIC-20 |
| 文件頁數： | 15/46頁 |
| 文件大小： | 1078K |
| 代理商： | TLV2548CDWRG4 |
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TLV2544, TLV2548
2.7V TO 5.5V, 12BIT, 200KSPS, 4/8CHANNEL, LOW POWER
SERIAL ANALOGTODIGITAL CONVERTERS WITH AUTOPOWERDOWN
SLAS198E FEBRUARY 1999 REVISED JUNE 2003
22
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range, VCC = VREFP = 2.7 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
MAX
UNIT
VOH
High-level output voltage
VCC = 5.5 V, IOH = 0.2 mA at 25 pF load
2.4
V
VOH
High-level output voltage
VCC = 2.7 V, IOH = -20 A at 25 pF load
VCC0.2
V
VOL
Low-level output voltage
VCC = 5.5 V, IOL = 0.8 mA at 25 pF load
0.4
V
VOL
Low-level output voltage
VCC = 2.7 V, IOL = 20 A at 25 pF load
0.1
V
IOZ
Off-state output current
(high-impedance-state)
VO = VCC
CS = VCC
1
2.5
A
IOZ
Off-state output current
(high-impedance-state)
VO = 0
CS = VCC
2.5
1
A
IIH
High-level input current
VI = VCC
0.005
2.5
A
IIL
Low-level input current
VI = 0 V
0.005
2.5
A
CS at 0 V, Ext ref
VCC = 4.5 V to 5.5 V
1.1
mA
Operating supply current, normal
CS at 0 V, Ext ref
VCC = 2.7 V to 3.3 V
1
mA
Operating supply current, normal
short sampling
CS at 0 V, Int ref
VCC = 4.5 V to 5.5 V
2.1
mA
ICC
short sampling
CS at 0 V, Int ref
VCC = 2.7 V to 3.3 V
1.6
mA
ICC
CS at 0 V, Ext ref
VCC = 4.5 V to 5.5 V
1.1
mA
Operating supply current, extended
CS at 0 V, Ext ref
VCC = 2.7 V to 3.3 V
1
mA
Operating supply current, extended
sampling
CS at 0 V, Int ref
VCC = 4.5 V to 5.5 V
2.1
mA
sampling
CS at 0 V, Int ref
VCC = 2.7 V to 3.3 V
1.6
mA
ICC(PD)
Power down supply current
for all digital inputs,
VCC = 4.5 V to 5.5 V, Ext clock
0.1
1
A
ICC(PD)
for all digital inputs,
0
≤ VI ≤ 0.3 V or
VI ≥ VCC 0.3 V, SCLK = 0
VCC = 2.7 V to 3.3 V, Ext clock
0.1
1
A
ICC(AUTOPWDN)
Auto power-down current for all
digital inputs, 0
≤ VI ≤ 0.3 V or
VCC = 4.5 V to 5.5 V, Ext clock, Ext ref
1
A
ICC(AUTOPWDN)
digital inputs, 0
≤ VI ≤ 0.3 V or
VI ≥ VCC 0.3 V, SCLK = 0
VCC = 2.7 V to 3.3 V, Ext ref, Ext clock
1.0§
A
Selected channel leakage current
Selected channel at VCC
1
A
Selected channel leakage current
Selected channel at 0 V
1
A
Maximum static analog reference
current into REFP (use external
reference)
VREFP = VCC = 5.5 V, VREFM = GND
1
A
Ci
Input capacitance
Analog inputs
45
50
pF
Ci
Input capacitance
Control Inputs
5
25
pF
Zi
Input MUX ON resistance
VCC = 4.5 V
500
Zi
Input MUX ON resistance
VCC = 2.7 V
600
All typical values are at VCC = 5 V, TA = 25°C.
1.2 mA if internal reference is used, 165 A if internal clock is used.
§ 0.8 mA if internal reference is used, 116 A if internal clock is used.
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