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| 型號(hào)： | AD7709 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 16-Bit Sigma Delta ADC with Current Sources, Switchable Reference Inputs and I/O Port |
| 中文描述： | 16位Σ-Δ型ADC電流源，可切換的基準(zhǔn)輸入和I / O端口 |
| 文件頁數(shù)： | 5/17頁 |
| 文件大小： | 248K |
| 代理商： | AD7709 |
AD7709
–5–
REV. PrA J anuary 2001
PRELIMINARY TECHNICAL DATA
OR D E R ING GUID E
Model
T emperature
Range
Package
Description
Package Drawing
Option
AD 7709BR
AD 7709BRU
-40°C to +85°C
-40°C to +85°C
SOIC
T SSOP
R-24
RU-24
1
Stresses above those listed under "Absolute Maximum Ratings" may cause permanent
damage to the device. T his is a stress rating only and 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.
A BSOL UT E MA X IMUM R A T INGS
1
(T
A
= +25°C unless otherwise noted)
V
DD
to GND.............................................-0.3V to +7V
Analog Input Voltage to GND...........-0.3V to V
DD
+0.3V
Reference Input Voltage to GND.......-0.3V to V
DD
+0.3V
AIN/REF IN C urrent (Indefinite)...........................30mA
Digital Input Voltage to GND...........-0.3V to V
DD
+0.3V
Digital Output Voltage to GND........-0.3V to V
DD
+0.3V
PWRGND
to GND...............................-0.3V to +0.3V
Operating T emperature Range..................-40°C to 85°C
Storage T emperature Range....................-65°C to 150°C
Junction T emperature........................................+150°C
PAC K AGE Power Dissipation........................T BD mW
θ
JA
T hermal Impedance..................................90°C /W
L ead T emperature, Soldering
Vapor Phase (60sec)..................................+215°C
Infrared (15 sec).......................................+220°C
C AUT ION
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 the AD7709 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. T herefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
OUT L INE D IM E NSIONS
24-lead plastic SOIC (R-24)
24-lead plastic T SSOP (RU-24)
24
13
12
1
0.6141 (15.60)
0.5985 (15.20)
0
0
0
0
PIN 1
SEATING
PLANE
0.0118 (0.30)
0.0040 (0.10)
0.0192 (0.49)
0.0138 (0.35)
0.1043 (2.65)
0.0926 (2.35)
0.0500
(1.27)
BSC
0.0125 (0.32)
0.0091 (0.23)
0.0500 (1.27)
0.0157 (0.40)
8
0
0.0291 (0.74)
24-lead plastic
T SSOP (R U-24)
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