参数资料
型号: EVAL-AD7678CBZ
厂商: Analog Devices Inc
文件页数: 26/28页
文件大小: 0K
描述: BOARD EVAL FOR AD7678
标准包装: 1
系列: PulSAR®
ADC 的数量: 1
位数: 18
采样率(每秒): 100k
数据接口: 串行,并联
输入范围: ±VREF
在以下条件下的电源(标准): 31mW @ 100kSPS
工作温度: -40°C ~ 85°C
已用 IC / 零件: AD7678
已供物品:
AD7678
Rev. A | Page 7 of 28
ABSOLUTE MAXIMUM RATINGS
Table 5. AD7678 Absolute Maximum Ratings1
Parameter
Rating
Analog Inputs
IN+2, IN–2, REF, REFBUFIN, REFGND
to AGND
AVDD + 0.3 V to
AGND – 0.3 V
Ground Voltage Differences
AGND, DGND, OGND
±0.3 V
Supply Voltages
AVDD, DVDD, OVDD
–0.3 V to +7 V
AVDD to DVDD, AVDD to OVDD
±7 V
DVDD to OVDD
–0.3 V to +7 V
Digital Inputs
–0.3 V to DVDD + 0.3 V
Internal Power Dissipation3
700 mW
Internal Power Dissipation4
2.5 W
Junction Temperature
150°C
Storage Temperature Range
–65°C to +150°C
Lead Temperature Range
(Soldering 10 sec)
300°C
1Stresses 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.
3Specification is for device in free air: 48-Lead LQFP: θJA = 91°C/W,
θJC = 30°C/W.
4 Specification is for device in free air: 48-Lead LFCSP: θJA = 26°C/W.
TO OUTPUT
PIN
CL
60pF1
500
A
IOH
1.6mA
IOL
1.4V
IN SERIAL INTERFACE MODES,THE SYNC, SCLK, AND
SDOUT TIMINGS ARE DEFINED WITH A MAXIMUM LOAD
CL OF 10pF; OTHERWISE,THE LOAD IS 60pF MAXIMUM.
1
03084–0–002
Figure 2. Load Circuit for Digital Interface Timing,
SDOUT, SYNC, SCLK Outputs, CL = 10 pF
0.8V
2V
0.8V
t
DELAY
2V
0.8V
t
DELAY
03084–0–003
Figure 3. Voltage Reference Levels for Timing
ESD CAUTION
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