(TA = +25 °C unless otherwise noted)" />
參數(shù)資料
型號： AD7731BRZ-REEL
廠商： Analog Devices Inc
文件頁數(shù)： 40/44頁
文件大?。?/td> 0K
描述： IC ADC 24BIT SIGMA-DELTA 24-SOIC
標準包裝： 1,000
位數(shù)： 24
采樣率（每秒）： 6.4k
數(shù)據(jù)接口： DSP，串行，SPI?
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 125mW
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： 24-SOIC（0.295"，7.50mm 寬）
供應商設(shè)備封裝： 24-SOIC W
包裝： 帶卷 (TR)
輸入數(shù)目和類型： 3 個差分，單極；3 個差分，雙極；5 個偽差分，單極；5 個偽差分，雙極
配用： EVAL-AD7731EBZ-ND - BOARD EVALUATION FOR AD7731
AD7731
REV.A ‐5‐
ABSOLUTE MAXIMUM RATINGS*
(TA = +25
°C unless otherwise noted)
AVDD to AGND .................................................. –0.3 V to +7 V
AVDD to DGND .................................................. –0.3 V to +7 V
DVDD to AGND .................................................. –0.3 V to +7 V
DVDD to DGND .................................................. –0.3 V to +7 V
AGND to DGND ................................................ –5 V to +0.3 V
AVDD to DVDD....................................................... –2 V to +5 V
Analog Input Voltage to AGND ........... –0.3 V to AVDD + 0.3 V
Reference Input Voltage to AGND....... –0.3 V to AVDD + 0.3 V
AIN/REF IN Current (Indefinite) .................................... 30 mA
Digital Input Voltage to DGND............ –0.3 V to DVDD + 0.3 V
Digital Output Voltage to DGND ......... –0.3 V to DVDD + 0.3 V
Output Voltage (D0, D1) to DGND...... –0.3 V to AVDD + 0.3 V
Operating Temperature Range
Industrial (B Version) ....................................... –40
°C to +85°C
Storage Temperature Range............................ –65
°C to +150°C
Junction Temperature .....................................................+150
°C
Plastic DIP Package, Power Dissipation........................450 mW
θJA Thermal Impedance ............................................... 105°C/W
Lead Temperature (Soldering, 10 sec)............................ +260
°C
TSSOP Package, Power Dissipation..............................450 mW
θJA Thermal Impedance ............................................... 128°C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) ...................................................... +215
°C
Infrared (15 sec) ............................................................. +220
°C
SOIC Package, Power Dissipation ................................450 mW
θJA Thermal Impedance ................................................. 75°C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) ...................................................... +215
°C
Infrared (15 sec) ............................................................ +220
°C
*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.
ORDERING GUIDE
Model (Z = RoHS)
Temperature Range
Package Description
Package Option
RoHS Compliant
AD7731BN
40°C to +85°C
24-Lead PDIP
N-24-1
No
AD7731BNZ
40°C to +85°C
24-Lead PDIP
N-24-1
Yes
AD7731BR
40°C to +85°C
24-Lead SOIC_W
RW-24
No
AD7731BR-REEL
40°C to +85°C
24-Lead SOIC_W
RW-24
No
AD7731BR-REEL7
40°C to +85°C
24-Lead SOIC_W
RW-24
No
AD7731BRZ
40°C to +85°C
24-Lead SOIC_W
RW-24
Yes
AD7731BRZ-REEL
40°C to +85°C
24-Lead SOIC_W
RW-24
Yes
AD7731BRZ-REEL7
40°C to +85°C
24-Lead SOIC_W
RW-24
Yes
AD7731BRU
40°C to +85°C
24-Lead TSSOP
RU-24
No
AD7731BRU-REEL
40°C to +85°C
24-Lead TSSOP
RU-24
No
AD7731BRU-REEL7
40°C to +85°C
24-Lead TSSOP
RU-24
No
AD7731BRUZ
40°C to +85°C
24-Lead TSSOP
RU-24
Yes
AD7731BRUZ-REEL
40°C to +85°C
24-Lead TSSOP
RU-24
Yes
AD7731BRUZ-REEL7
40°C to +85°C
24-Lead TSSOP
RU-24
Yes
EVAL-AD7731EBZ
Evaluation Board
Yes
TO OUTPUT
PIN
50pF
ISINK (800A AT DVDD = +5V
100A AT DVDD = +3V)
+1.6V
ISOURCE (200A AT DVDD = +5V
100A AT DVDD = +3V)
Figure 1. Load Circuit for Access Time and Bus Relinquish Time
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.
REV. A
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