參數(shù)資料
型號(hào)： AD7666ASTZRL
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 26/28頁(yè)
文件大?。?/td> 0K
描述： IC ADC 16BIT UNIPOLAR 48LQFP
標(biāo)準(zhǔn)包裝： 2,000
系列： PulSAR®
位數(shù)： 16
采樣率（每秒）： 500k
數(shù)據(jù)接口： 串行，并聯(lián)
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 75mW
電壓電源： 模擬和數(shù)字
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 48-LQFP
供應(yīng)商設(shè)備封裝： 48-LQFP（7x7）
包裝： 帶卷 (TR)
輸入數(shù)目和類型： 2 個(gè)偽差分，單極
配用： EVAL-AD7666CBZ-ND - BOARD EVALUATION FOR AD7666
AD7666
Rev. 0 | Page 7 of 28
ABSOLUTE MAXIMUM RATINGS
Table 5. AD7666 Stress Ratings1
Parameter
Rating
IN2, TEMP2, REF, REFBUFIN, INGND,
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
PDREF, PDBUF3
±20 mA
Internal Power Dissipation4
700 mW
Internal Power Dissipation5
2.5 W
Junction Temperature
150°C
Storage Temperature Range
–65°C to +150°C
Lead Temperature Range
(Soldering 10 sec)
300°C
1 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 listed
in the operational sections of this specification is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device
reliability.
2 See Analog Input section.
3 See the Voltage Reference Input section.
4 Specification is for the device in free air:
48-Lead LQFP; θJA = 91°C/W, θJC = 30°C/W
5 Specification is for the device in free air:
48-Lead LFCSP; θJA = 26°C/W.
IOH
500
A
1.6mA
IOL
TO OUTPUT
PIN
1.4V
CL
60pF
*
* 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.
03033-0-002
Figure 2. Load Circuit for Digital Interface Timing,
SDOUT, SYNC, SCLK Outputs CL = 10 pF
0.8V
2V
0.8V
2V
t
DELAY
t
DELAY
03033-0-003
Figure 3. Voltage Reference Levels for Timing
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although this product features proprietary ESD protection circuitry, permanent damage may occur
on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are
recommended to avoid performance degradation or loss of functionality.
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