AD7247ABR Analog Devices Inc, AD7247ABR Datasheet - Page 3

• Manufacturer Part Number: AD7247ABR
• Description: IC DAC 12BIT LC2MOS DUAL 24SOIC
• Manufacturer: Analog Devices Inc
• Series: DACPORT®r

Specifications of AD7247ABR

• Data Interface: Parallel
• Settling Time: 10µs
• Mounting Type: Surface Mount
• Rohs Status: RoHS non-compliant
• Number Of Bits: 12
• Number Of Converters: 2
• Voltage Supply Source: Dual ±
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 24-SOIC (7.5mm Width)
• Resolution (bits): 12bit
• No. Of Pins: 24
• Operating Temperature Range: -40°C To +85°C
• Update Rate: 0.125MSPS
• Termination Type: SMD
• Power Dissipation (max): -
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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 AD7237A/AD7247A 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.
REV. 0
Parameter
t
t
t
t
t
t
t
t
NOTES
1
2
3
4
5
ABSOLUTE MAXIMUM RATINGS
(T
V
V
V
AGND to DGND (AD7237A) . . . . . . . . . –0.3 V, V
V
REF OUT to AGND (GND) . . . . . . . . . . . . . . . . . 0 V to V
REF IN to AGND (GND) . . . . . . . . . . –0.3 V to V
Digital Inputs to DGND (GND) . . . . . . –0.3 V to V
Operating Temperature Range
Storage Temperature Range . . . . . . . . . . . . –65 C to +150 C
Lead Temperature (Soldering, 10 secs) . . . . . . . . . . . . +300 C
Power Dissipation (Any Package) to +75 C . . . . . . . 1000 mW
Derates above +75 C by . . . . . . . . . . . . . . . . . . . . . 10 mW/ C
NOTES
1
2
TIMING CHARACTERISTICS
Sample tested at +25 C to ensure compliance. All input signals are specified with tr = tf = 5 ns (10% to 90% of 5 V) and timed from a voltage level of 1.6 V.
See Figures 5 and 7.
Power Supply tolerance is 10% for A version and 5% for B and T versions.
If 0 ns < t
AD7237A only.
1
2
3
4
5
6
7
8
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.
in this range provided the power dissipation of the package is not exceeded.
Stresses above those listed under “Absolute Maximum Ratings” may cause
Short-circuit current is typically 80 mA. The outputs may be shorted to voltages
4
5
OUTA
DD
DD
DD
A
Industrial (A, B Versions) . . . . . . . . . . . . . –40 C to +85 C
Extended (T Version) . . . . . . . . . . . . . . . –55 C to +125 C
= +25 C unless otherwise noted)
to GND (AD7247A) . . . . . . . . . . . . . . . . –0.3 V to +17 V
to AGND, DGND (AD7237A) . . . . . . . . –0.3 V to +17 V
to V
,
2
2
V
SS
< 10 ns, add t
OUTB
. . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +34 V
2
to AGND (GND) . . V
2
to t
Limit at T
(A, B Versions)
0
0
80
80
10
0
0
80
5
. If t
2
10 ns, add 10 ns to t
MIN
1
, T
SS
1, 2
MAX
–0.3 V to V
(V
GND = 0 V [AD7247A])
DD
5
.
= +12 V to +15 V,
Limit at T
(T Version)
0
0
100
80
10
0
0
100
DD
DD
DD
DD
+0.3 V
+0.3 V
+0.3 V
+0.3 V
DD
MIN
–3–
, T
3
V
Model
AD7237AAN
AD7237ABN
AD7237AAR
AD7237ABR
AD7237ATQ
AD7247AAN
AD7247ABN
AD7247AAR
AD7247ABR
AD7247ATQ
NOTES
1
2
To order MIL-STD-883, Class B processed parts, add /883B to part number.
Contact local sales office for military data sheet and availability.
N = Plastic DIP; Q = Cerdip; R = Small Outline (SOIC).
SS
MAX
= 0 V or –12 V to –15 V,
1
Units
ns min
ns min
ns min
ns min
ns min
ns min
ns min
ns min
Temperature
Range
–40 C to +85 C
–40 C to +85 C
–40 C to +85 C
–40 C to +85 C
–55 C to +125 C
–40 C to +85 C
–40 C to +85 C
–40 C to +85 C
–40 C to +85 C
–55 C to +125 C
ORDERING GUIDE
3
AGND = DGND = 0 V [AD7237A],
Conditions/Comments
CS to WR Setup Time
CS to WR Hold Time
WR Pulse Width
Data Valid to WR Setup Time
Data Valid to WR Hold Time
Address to WR Setup Time
Address to WR Hold Time
LDAC Pulse Width
AD7237A/AD7247A
WARNING!
Relative
Accuracy
(LSB)
1 max
1/2 max
1/2 max
1 max
1/2 max
1 max
1/2 max
1 max
1/2 max
1/2 max
ESD SENSITIVE DEVICE
Package
Option
N-24
N-24
R-24
R-24
Q-24
N-24
N-24
R-24
R-24
Q-24
2