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參數(shù)資料
型號(hào)： TLC2578IDWR
廠商： TEXAS INSTRUMENTS INC
元件分類： ADC
英文描述： 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24
封裝： GREEN, PLASTIC, SOP-24
文件頁(yè)數(shù)： 44/48頁(yè)
文件大小： 1092K
代理商： TLC2578IDWR
TLC3574, TLC3578, TLC2574, TLC2578
5V ANALOG, 3/5V DIGITAL, 14/12BIT, 200KSPS, 4/8CHANNEL
SERIAL ANALOGTODIGITAL CONVERTERS WITH ±10V INPUTS
SLAS262C OCTOBER 2000 REVISED MAY 2003
5
WWW.TI.COM
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
Supply voltage, GND to AVDD and DVDD
0.3 V to 6.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Analog input voltage range
17 V to 17 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Analog input current
100 mA MAX
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reference input voltage
AVDD + 0.3 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Digital input voltage range
0.3 V to DVDD + 0.3 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating virtual junction temperature range, TJ
40
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA
40
°C to 85°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg
65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1.16 inch) from case for 10 seconds
260
°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under electrical characteristics and timing
characteristics is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
general electrical characteristics over recommended operating free-air temperature range,
single-ended input, normal long sampling, 200 KSPS, AVDD = 5 V, VREFP = 4 V, VREFM = 0 V,
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 digital input voltage
DVDD = 5 V
3.8
V
VIH
High-level digital input voltage
DVDD = 3 V
2.1
V
VIL
Low-level digital input voltage
DVDD = 5 V
0.8
V
VIL
Low-level digital input voltage
DVDD = 3 V
0.6
V
IIH
High-level digital input current
VI = DVDD
0.005
2.5
A
IIL
Low-level digital input current
VI = DGND
2.5
0.005
A
Input capacitance
20
25
pF
Digital Output
VOH
High-level digital output at 30 pF load
Io = 0.2 mA
DVDD = 5 V
4.2
V
VOH
High-level digital output at 30 pF load
Io = 0.2 mA
DVDD = 3 V
2.4
V
DVDD = 5 V
Io = 0.8 mA
0.4
VOL
Low-level digital output at 30 pF load
DVDD = 5 V
Io = 50 A
0.1
V
VOL
Low-level digital output at 30 pF load
DVDD = 3 V
Io = 0.8 mA
0.4
V
DVDD = 3 V
Io = 50 A
0.1
IOZ
Off-state output current
VO = DVDD
CS = DVDD
0.02
1
A
IOZ
Off-state output current
(high-impedance state)
VO = DGND
CS = DVDD
1
0.02
A
Power Supply
AVDD
Supply voltage
4.75
5
5.5
V
DVDD
Supply voltage
2.7
5
5.5
V
ICC
Power supply cur-
AVDD current
AlCC
Conversion clock is internal OSC,
AVDD = 5.5 V 4.5 V, CS = DGND,
4.2
5
mA
ICC
Power supply cur-
rent
DVDD current
DlCC
AVDD = 5.5 V 4.5 V, CS = DGND,
Excluding bipolar input biasing current
1.6
2.0
mA
ICC
(autopwrdn):
Autopower-down power supply
For all digital inputs = DVDD or DGND,
AVDD = 5.5 V, Excluding bipolar input
SCLK OFF
20
A
CC
(autopwrdn):
Autopower-down power supply
current
DD
AVDD = 5.5 V, Excluding bipolar input
biasing current, external reference
SCLK ON
175
230
A
Operating temperature
40
85
°C
All typical values are at TA = 25°C.
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