Lead Temperature (Soldering, 10 secs) . . . . . . . . . . . . . 300°C
*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 indicated in the operational
specification is not implied. Exposure to the above maximum rating conditions for
extended periods may affect device reliability.
SO-8
8
7
TOP VIEW
(Not to Scale)
6
5
7
6
5
TOP VIEW
(Not to
Scale)
P-DIP-8
LD
1
CLK
2
8
7
V
REF
V
DD
TOP VIEW
(Not to Scale)
6
SDI
3
V
OUT
5
GND
CLR
4
PIN DESCRIPTIONS
Pin No.
1
Name
LD
Function
Load Strobe. Transfers shift register
data to DAC register while active low.
See truth table for operation.
Clock Input. Positive edge clocks data
into shift register.
Serial Data Input. Data loads directly
into the shift register.
Resets DAC register to zero condition.
Active low input.
Analog and Digital Ground.
DAC Voltage Output. Full-scale output
1 LSB less than reference input voltage REF.
Positive Power Supply Input. Specified
range of operation 2.7 V to 5.5 V.
DAC Reference Input Pin. Establishes
DAC full-scale voltage.
CLR
RESET
DAC
REGISTER
LD
LOAD
2
3
CLK
SDI
CLR
GND
V
OUT
V
DD
V
REF
12
CLK
CLK
12-BIT AD7390*
SHIFT REGISTER
SDI
*AD7391
HAS A 10-BIT SHIFT REGISTER
D
4
5
6
7
8
Figure 3. Digital Control Logic
ORDERING GUIDE
1
Model
AD7390AN
AD7390AR
AD7390AR-REEL7
AD7391AN
AD7391AR
AD7391SR
AD7391ARU-REEL
Resolution
12
12
12
10
10
10
10
Temperature
Range
40°C to
40°C to
40°C to
40°C to
40°C to
55°C to
40°C to
85°C
85°C
85°C
85°C
125°C
125°C
85°C
Package
Description
8-Lead P-DIP
8-Lead SOIC
8-Lead SOIC
8-Lead P-DIP
8-Lead SOIC
8-Lead SOIC
TSSOP-8
Package
Option
N-8
SO-8
SO-8
N-8
SO-8
SO-8
RU-8
Top
Mark
2
AD7390
2
AD7390
3
AD7390
3
AD7391
2
AD7391
3
AD7391
3
AD7391A
4
Number of Devices
Per Container
50
196
1000
50
196
39
2500
NOTES
1
The AD7390 contains 588 transistors. The die size measures 70 mm 68 mm.
2
Line 1 contains ADI logo symbol and part number. Line 2 contains grade and date code YWW. Line 3 contains the letter G plus the 4-digit lot number.
3
Line 1 contains part number. Line 2 contains grade and date code YWW. Line 3 contains the letter G plus the 4-digit lot number and the ADI logo symbol.
4
Line 1 contains the date code YWW. Line 2 contains the 4-digit part number plus grade.
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 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.
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