参数资料
型号: AD7946BRM
厂商: ANALOG DEVICES INC
元件分类: ADC
英文描述: 14-Bit, 500 kSPS PulSAR⑩ ADC in MSOP/QFN
中文描述: 1-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO10
封装: MO-187-BA, MSOP-10
文件页数: 21/24页
文件大小: 637K
代理商: AD7946BRM
AD7946
Rev. A | Page 6 of 24
ABSOLUTE MAXIMUM RATINGS
Table 5.
Parameter
Rating
Analog Inputs
IN+1, IN1
GND 0.3 V to VDD + 0.3 V or
±130 mA
REF
GND 0.3 V to VDD + 0.3 V
Supply Voltages
VDD, VIO to GND
0.3 V to +7 V
VDD to VIO
±7 V
Digital Inputs to GND
0.3 V to VIO + 0.3 V
Digital Outputs to GND
0.3 V to VIO + 0.3 V
Storage Temperature Range
65°C to +150°C
Junction Temperature
150°C
θJA Thermal Impedance
10-Lead MSOP
200°C/W
10-Lead QFN
48.7°C/W
θJC Thermal Impedance
10-Lead MSOP
44°C/W
10-Lead QFN
2.96°C/W
Lead Temperature
Vapor Phase (60 sec)
215°C
Infrared (15 sec)
220°C
1 See the Analog Input section.
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
ESD CAUTION
04
65
6-
00
2
500A
IOL
500A
IOH
1.4V
TO
SDO
CL
50pF
Figure 2. Load Circuit for Digital Interface Timing
04656-003
30% VIO
70% OVDD
2V or VIO – 0.5V1
0.8V or 0.5V2
2V or OVDD – 0.5V1
tDELAY
NOTES
12V IF VIO ABOVE 2.5V, VIO – 0.5V IF VIO BELOW 2.5V.
20.8V IF VIO ABOVE 2.5V, 0.5V IF VIO BELOW 2.5V.
Figure 3. Voltage Levels for Timing
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