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AD7391ARU Datasheet(PDF) 4 Page - Analog Devices

Part # AD7391ARU
Description  3 Volt Serial-Input Micropower 10-Bit & 12-Bit DACs
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7391ARU Datasheet(HTML) 4 Page - Analog Devices

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AD7390/AD7391
REV. 0
–4–
WARNING!
ESD SENSITIVE DEVICE
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 AD7390/AD7391 features proprietary ESD protection circuitry, permanent dam-
age may occur on devices subjected to high energy electrostatic discharges. Therefore, proper
ESD precautions are recommended to avoid performance degradation or loss of functionality.
ABSOLUTE MAXIMUM RATINGS*
VDD to GND . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.3 V,
8 V
VREF to GND . . . . . . . . . . . . . . . . . . . . . . . 0.3 V, VDD
0.3 V
Logic Inputs to GND . . . . . . . . . . . . . . . . . . . . . 0.3 V,
8 V
VOUT to GND . . . . . . . . . . . . . . . . . . . . .
0.3 V, VDD
0.3 V
IOUT Short Circuit to GND . . . . . . . . . . . . . . . . . . . . . . 50 mA
Package Power Dissipation . . . . . . . . . . . . . . (TJ MAX
TA)/
θ
JA
Thermal Resistance
θ
JA
8-Pin Plastic DIP Package (N-8) . . . . . . . . . . . . . . 103
°C/W
8-Lead SOIC Package (SO-8) . . . . . . . . . . . . . . . . 158
°C/W
TSSOP-8 Package (RU-8) . . . . . . . . . . . . . . . . . . . 240
°C/W
Maximum Junction Temperature (TJ MAX) . . . . . . . . . . 150
°C
Operating Temperature Range . . . . . . . . . . .
40
°C to 85°C
Storage Temperature Range . . . . . . . . . . . .
65
°C to 150°C
Lead Temperature (Soldering, 10 secs) . . . . . . . . . . . .
300
°C
NOTES
*Stresses 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 indicated in the
operational specification is not implied. Exposure to the above maximum rating
conditions for extended periods may affect device reliability.
ORDERING GUIDE
Package
Package
Model
Res
Temp
Description
Option
AD7390AN
12
XIND
8-Pin P-DIP
N-8
AD7390AR
12
XIND
8-Lead SOIC
SO-8
AD7391AN
10
XIND
8-Pin P-DIP
N-8
AD7391AR
10
AUTO
8-Lead SOIC
SO-8
AD7391ARU
10
XIND
TSSOP-8
RU-8
NOTES
XIND =
40
°C to 85°C; AUTO = 40°C to 125°C
The AD7390 contains 558 transistors. The die size measures 70 mil X 68 mil.
* NOTE: AD7391 HAS A 10-BIT SHIFT REGISTER
CLR
LD
CLK
SDI
RESET
LOAD
DAC
REGISTER
12-BIT AD7390*
SHIFT REGISTER
D
CLK
12
Figure 3. Digital Control Logic
PIN CONFIGURATIONS
1
2
3
4
8
7
6
TOP VIEW
(Not to Scale)
SO-8
5
TOP
VIEW
(Not to
Scale)
TSSOP-8
1
5
2
3
4
6
7
8
1
2
3
4
8
7
6
5
TOP VIEW
(Not to Scale)
LD
GND
VOUT
VDD
VREF
CLK
SDI
CLR
P-DIP-8
PIN DESCRIPTIONS
Pin No.
Name
Function
1
LD
Load Strobe. Transfers shift register
data to DAC register while active low.
See truth table for operation.
2
CLK
Clock Input. Positive edge clocks data
into shift register.
3
SDI
Serial Data Input. Data loads directly
into the shift register.
4
CLR
Resets DAC register to zero condition.
Active low input.
5
GND
Analog & Digital Ground.
6VOUT
DAC Voltage Output. Full-scale output
1 LSB less than reference input voltage
REF.
7VDD
Positive Power Supply Input. Specified
range of operation
2.7 V to
5.5 V.
8VREF
DAC Reference Input Pin. Establishes
DAC full-scale voltage.


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