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參數資料
| 型號： | AD7712AN |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | LC2MOS Signal Conditioning ADC |
| 中文描述： | 2-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDIP24 |
| 封裝： | 0.300 INCH, PLASTIC, DIP-24 |
| 文件頁數： | 4/28頁 |
| 文件大?。?/td> | 229K |
| 代理商： | AD7712AN |
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Parameter
A, S Versions
1
Units
Conditions/Comments
POWER REQUIREMENTS
Power Supply Voltages
AV
DD
Voltage
18
DV
DD
Voltage
19
AV
DD
– V
SS
Voltage
Power Supply Currents
AV
DD
Current
DV
DD
Current
V
SS
Current
Power Supply Rejection
20
Positive Supply (AV
DD
and DV
DD
)
Negative Supply (V
SS
)
Power Dissipation
Normal Mode
Normal Mode
Standby (Power-Down) Mode
22
+5 to +10
+5
+10.5
V nom
V nom
V max
±
5% for Specified Performance
±
5% for Specified Performance
For Specified Performance
4
4.5
1.5
mA max
mA max
mA max
V
SS
= –5 V
Rejection w.r.t. AGND; Assumes V
BIAS
Is Fixed
See Note 21
90
dB typ
dB typ
45
52.5
200
mW max
mW max
μ
W max
AV
DD
= DV
DD
= +5 V, V
SS
= 0 V; Typically 25 mW
AV
DD
= DV
DD
= +5V, V
SS
= –5 V; Typically 30 mW
AV
DD
= DV
DD
= +5V, V
SS
= 0 V or –5 V; Typically 100
μ
W
NOTES
18
The AD7712 is specified with a 10 MHz clock for AV
DD
voltages of +5 V
±
5%. It is specified with an 8 MHz clock for AV
DD
voltages greater than 5.25 V and less
than 10.5 V.
19
The
±
5% tolerance on the DV
input is allowed provided that DV
does not exceed AV
by more than 0.3 V.
20
Measured at dc and applies in the selected passband. PSRR at 50 Hz will exceed 120 dB with filter notches of 10 Hz, 25 Hz or 50 Hz. PSRR at 60 Hz will
exceed 120 dB with filter notches of 10 Hz, 30 Hz or 60 Hz.
21
PSRR depends on gain: gain of 1 = 70 dB typ; gain of 2 = 75 dB typ; gain of 4 = 80 dB typ; gains of 8 to 128 = 85 dB typ. These numbers can be improved
(to 95 dB typ) by deriving the V
voltage (via Zener diode or reference) from the AV
supply.
22
Using the hardware STANDBY pin. Standby power dissipation using the software standby bit (PD) of the Control Register is 8 mW typ.
Specifications subject to change without notice.
AD7712–SPECIFICATIONS
REV. E
–4–
CAUTION
ESD (electrostatic discharge) sensitive device. The digital control inputs are diode protected;
however, permanent damage may occur on unconnected devices subject to high energy electro-
static fields. Unused devices must be stored in conductive foam or shunts. The protective foam
should be discharged to the destination socket before devices are inserted.
REF OUT to AGND . . . . . . . . . . . . . . . . . . . . –0.3 V to AV
DD
Digital Input Voltage to DGND . . . . . –0.3 V to AV
DD
+ 0.3 V
Digital Output Voltage to DGND . . . –0.3 V to DV
DD
+ 0.3 V
Operating Temperature Range
Commercial (A Version) . . . . . . . . . . . . . . . –40
°
C to +85
°
C
Extended (S Version) . . . . . . . . . . . . . . . . . –55
°
C to +125
°
C
Storage Temperature Range . . . . . . . . . . . . . –65
°
C to +150
°
C
Lead Temperature (Soldering, 10 secs) . . . . . . . . . . . . +300
°
C
Power Dissipation (Any Package) to +75
°
C . . . . . . . . 450 mW
*Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent 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 the specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
ABSOLUTE MAXIMUM RATINGS*
(T
A
= +25
°
C, unless otherwise noted)
AV
DD
to DV
DD
. . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +12 V
AV
DD
to V
SS
. . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +12 V
AV
DD
to AGND . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +12 V
AV
DD
to DGND . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +12 V
DV
DD
to AGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +6 V
DV
DD
to DGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +6 V
V
SS
to AGND . . . . . . . . . . . . . . . . . . . . . . . . . +0.3 V to –6 V
V
SS
to DGND . . . . . . . . . . . . . . . . . . . . . . . . . +0.3 V to –6 V
AIN1 Input Voltage to AGND . . V
SS
– 0.3 V to AV
DD
+ 0.3 V
Reference Input Voltage to AGND
. . . . . . . . . . . . . . . . . . . . . . . . . V
SS
– 0.3 V to AV
DD
+ 0.3 V
ORDERING GUIDE
Model
Temperature Range
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–55
°
C to +125
°
C
Package Options*
AD7712AN
AD7712AR
AD7712AQ
AD7712SQ
EVAL-AD7712EB Evaluation Board
N-24
R-24
Q-24
Q-24
*N = Plastic DIP, Q = Cerdip; R = SOIC.
WARNING!
ESD SENSITIVE DEVICE
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相關代理商/技術參數 |
參數描述 |
|---|---|
| AD7712ANZ | 功能描述:IC ADC SIGNAL COND LC2MOS 24-DIP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 其它有關文件:TSA1204 View All Specifications 標準包裝:1 系列:- 位數:12 采樣率（每秒）:20M 數據接口:并聯 轉換器數目:2 功率耗散（最大）:155mW 電壓電源:模擬和數字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-TQFP 供應商設備封裝:48-TQFP（7x7） 包裝:Digi-Reel® 輸入數目和類型:4 個單端，單極；2 個差分，單極 產品目錄頁面:1156 (CN2011-ZH PDF) 其它名稱:497-5435-6 |
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| AD7712AQ | 制造商:Rochester Electronics LLC 功能描述:24 BIT SIGMA DELTA ADC IC - Bulk |
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| AD7712AR-REEL | 制造商:Analog Devices 功能描述:ADC Single Delta-Sigma 1.028ksps 24-bit Serial 24-Pin SOIC W T/R 制造商:Analog Devices 功能描述:ADC SGL DELTA-SIGMA 1.028KSPS 24BIT SERL 24SOIC W - Tape and Reel |
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