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| 型號(hào)： | TLC3544CDWRG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | ADC |
| 英文描述： | 4-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20 |
| 封裝： | GREEN, PLASTIC, SOIC-20 |
| 文件頁數(shù)： | 39/42頁 |
| 文件大小： | 959K |
| 代理商： | TLC3544CDWRG4 |
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TLC3544, TLC3548
5-V ANALOG, 3-/5-V DIGITAL, 14-BIT, 200-KSPS, 4-/8-CHANNELS SERIAL
ANALOG-TO-DIGITAL CONVERTERS WITH 0-5 V (PSEUDODIFFERENTIAL) INPUTS
SLAS266C – OCTOBER 2000 – REVISED MAY 2003
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
general electrical characteristics over recommended operating free-air temperature range,
single-ended input, normal long sampling, 200 KSPS, AVDD = 5 V, external reference (VREFP = 4 V,
VREFM = 0 V) or internal reference, SCLK frequency = 25 MHz, fixed channel at CONV mode 00,
analog input signal source resistance = 25
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Digital Input
VIH
High level control input voltage
DVDD = 5 V
3.8
V
VIH
High-level control input voltage
DVDD = 3 V
2.1
V
VIL
Low-level control input voltage
DVDD = 5 V
0.8
V
VIL
Low level control in ut voltage
DVDD = 3 V
0.6
V
IIH
High-level input current
VI = DVDD
0.005
2.5
A
IIL
Low-level input current
VI = DGND
–2.5
0.005
A
Input capacitance
20
25
pF
Digital output
VOH
High-level digital output,
IO = 02 mA
DVDD = 5 V
4.2
V
VOH
High level digital out ut,
VOH at 30-pF load
IO = –0.2 mA
DVDD = 3 V
2.4
V
DVDD =5V
IO = 0.8 mA
0.4
VOL
Low-level digital output,
DVDD = 5 V
IO = 50 A
0.1
V
VOL
Low level digital out ut,
VOL at 30-pF load
DVDD =3V
IO = 0.8 mA
0.4
V
OL
DVDD = 3 V
IO = 50 A
0.1
IOZ
Off-state output current
VO = DVDD
CS
DV
0.02
1
A
IOZ
Off state out ut current
(high-impedance state)
VO = DGND
CS = DVDD
–1
–0.02
A
Power Supply
AVDD
Supply voltage
4.5
5
5.5
V
DVDD
Supply voltage
2.7
5
5.5
V
ICC
Power supply
AVDD current-
AICC
Conversion clock is internal OSC,
EXT reference AVDD =5 5Vto4 5V
2.8
3.6
mA
ICC
Power su
ly
current
DVDD current-
DICC
EXT. reference, AVDD = 5.5 V to 4.5 V,
CS = DGND
1.2
2
mA
ICC(SW)
Sft
d
l
t
For all digital inputs DVDD or
DGND CS =DVDD
SCLK ON
175
240
A
ICC(SW)
Software
power-down
power
supply
current
DGND, CS = DVDD,
AVDD = 5.5 V
SCLK OFF
20
A
ICC(A t d
)
Autopower-down power supply
For all digital inputs DVDD or
DGND AVDD =5 5V
SCLK ON
175
230
A
ICC(Autodown)
Autopower-down power supply
current
DGND, AVDD = 5.5 V,
External reference
SCLK OFF
20
A
Operating temperat re
C suffix
0
70
°C
Operating temperature
I suffix
–40
85
°C
All typical values are at TA = 25°C.
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