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ADS4449EVM 数据手册 - TI（德州仪器）
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ADS4449EVM数据手册
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5
ADS4449
www.ti.com
SBAS603A –APRIL 2013–REVISED JANUARY 2016
Product Folder Links: ADS4449
Submit Documentation FeedbackCopyright © 2013–2016, Texas Instruments Incorporated
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended
Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) When AVDD is turned off, TI recommends switching off the input clock (or ensuring the voltage on CLKP and CLKM is less than
| 0.3 V |). This recommendation prevents the ESD protection diodes at the clock input terminals from turning on.
6 Specifications
6.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)
(1)
MIN MAX UNIT
Supply voltage
AVDD33 –0.3 3.6
VAVDD –0.3 2.1
DRVDD –0.3 2.1
Voltage between
AVSS and DRVSS –0.3 0.3
V
AVDD and DRVDD –2.4 2.4
AVDD33 and DRVDD –2.4 3.9
AVDD33 and AVDD –2.4 3.9
Voltage applied to input terminals
XINP, XINM –0.3
minimum (1.9, AVDD +
0.3)
V
CLKP, CLKM
(2)
–0.3
minimum (1.9, AVDD +
0.3)
RESET, SCLK, SDATA, SEN, PDN –0.3 3.9
Temperature
Operating free-air, T
A
–40 85
°COperating junction, T
J
150
Storage, T
stg
–65 150
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.
6.2 ESD Ratings
VALUE UNIT
V
(ESD)
Electrostatic discharge
Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001
(1)
±2000
V
Charged-device model (CDM), per JEDEC specification JESD22-
C101
(2)
±500
6.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
MIN NOM MAX UNIT
SUPPLIES
AVDD33
Supply voltage
3.15 3.3 3.45 V
AVDD 1.8 1.9 2 V
DRVDD 1.7 1.8 2 V
ANALOG INPUTS
Differential input voltage range 2 V
PP
V
IC
Input common-mode voltage V
CM
± 0.025 V
Analog input common-mode current (per input terminal of each channel) 1.5 µA/MSPS
VCM current capability 5 mA
Maximum analog input frequency
2-V
PP
input amplitude 400
MHz
1.4-V
PP
input amplitude 500
CLOCK INPUTS
Input clock sample rate 10 250 MSPS
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