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AD7450BRM Datasheet(PDF) 4 Page - Analog Devices

Part # AD7450BRM
Description  Differential Input, 1MSPS, 12-Bit ADC in 關SO-8 and S0-8
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7450BRM Datasheet(HTML) 4 Page - Analog Devices

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REV. PrJ
PRELIMINARY TECHNICAL DATA
–4–
AD7450
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
the AD7450 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.
WARNING!
ESD SENSITIVE DEVICE
ABSOLUTE MAXIMUM RATINGS
1
(TA = +25°C unless otherwise noted)
VDD to GND . . . . . . . . . . . . . . . . . . . . . . . . -0.3 V to +7 V
VIN+ to GND . . . . . . . . . . . . . . . . . –0.3 V to VDD + 0.3 V
VIN- to GND . . . . . . . . . . . . . . . . . –0.3 V to VDD + 0.3 V
Digital Input Voltage to GND . . . -0.3 V to VDD + 0.3 V
Digital Output Voltage to GND . . -0.3 V to VDD + 0.3 V
VREF to GND . . . . . . . . . . . . . . . . . . . -0.3 V to VDD +0.3 V
Input Current to Any Pin Except Supplies
2
. . . . ±10mA
Operating Temperature Range
Commercial (A, B Version) . . . . . . . . . -40oC to +85oC
Storage Temperature Range . . . . . . . . . -65
oC to +150oC
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . +150
oC
SOIC, µSOIC Package, Power Dissipation . . . . 450mW
JA Thermal Impedance
. . . . . . . . . . 157°C/W (SOIC)
205.9°C/W (µSOIC)
JC Thermal Impedance
. . . . . . . . . . . 56°C/W (SOIC)
43.74°C/W (µSOIC)
Lead Temperature, Soldering
Vapor Phase (60 secs) . . . . . . . . . . . . . . . . . . . +215oC
Infared (15 secs) . . . . . . . . . . . . . . . . . . . . . . . +220
oC
E S D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T B D
Linearity
Package
Model
Range
Error (LSB)1
Option4
Branding Information
AD7450AR
-40°C to +85°C
±2 LSB
SO-8
AD7450AR
AD7450ARM
-40°C to +85°C
±2 LSB
RM-8
CPA
AD7450BR
-40°C to +85°C
±1 LSB
SO-8
AD7450BR
AD7450BRM
-40°C to +85°C
±1 LSB
RM-8
CPB
EVAL-AD7450CB2
Evaluation Board
EVAL-CONTROL BRD2
3
Controller Board
ORDERING GUIDE
NOTES
1Linearity error here refers to Integral Linearity Error.
2This can be used as a stand-alone evaluation board or in conjunction with the EVALUATION BOARD CONTROLLER for evaluation/demonstration purposes.
3EVALUATION BOARD CONTROLLER. This board is a complete unit allowing a PC to control and communicate with all Analog Devices
evaluation boards ending in the CB designators.
4S0 = SOIC; RM = µSOIC
NOTES
1Stresses above those listed under “Absolute Maximum Ratings” may cause permanent
damage to the device. This 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.
2Transient currents of up to 100 mA will not cause SCR latch up.
Figure 1. Serial Interface Timing Diagram
Figure 2. Load Circuit for Digital Output Timing Specifications
1
2
345
13
16
15
14
t 3
0
0
0
0
DB11
DB10
DB2
DB1
DB0
t 2
4 LEADING ZERO’S
3-STATE
t 4
t 6
t 5
t 7
t
8
t
QUIET
CONVE RT
t
B
CS
SCLK
SDATA
t
1
+1.6V
IOL
200µA
200µA
IOH
TO
OUTP UT
PIN
CL
50 pF


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