AD7538(RevA) Просмотр технического описания (PDF) - Analog Devices
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AD7538 Datasheet PDF : 8 Pages
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AD7538
TIMING CHARACTERISTICS1 (VDD = +11.4 V to +15.75 V, VREF = +10 V, VPIN3 = VPIN4 = 0 V, VSS = 0 V or –300 mV.
All specifications TMIN to TMAX unless otherwise noted. See Figure 1 for Timing Diagram.)
Parameter
Limit at
TA = +25؇C
Limit at
TA = 0؇C to +70؇C
TA = –25؇C to +85؇C
Limit at
TA = –55؇C to +125؇C
Units
Test Conditions/Comments
t1
0
0
0
t2
0
0
0
t3
170
200
240
t4
170
200
240
t5
140
160
180
t6
20
20
30
ns min
ns min
ns min
ns min
ns min
ns min
CS to WR Setup Time
CS to WR Hold Time
LDAC Pulse Width
Write Pulse Width
Data Setup Time
Data Hold Time
NOTES
1Temperature range as follows: J, K Versions: 0°C to +70°C
A, B Versions: –25°C to +85°C
S, T Versions: –55°C to +125°C
Specifications subject to change without notice.
ABSOLUTE MAXIMUM RATINGS*
(TA= +25°C unless otherwise stated)
VDD (Pin 23) to DGND . . . . . . . . . . . . . . . . . . . –0.3 V, +17 V
VSS (Pin 24) to AGND . . . . . . . . . . . . . . . . . . . –15 V, +0.3 V
VREF (Pin 1) to AGND . . . . . . . . . . . . . . . . . . . . . . . . . ± 25 V
VRFB (Pin 2) to AGND . . . . . . . . . . . . . . . . . . . . . . . . . ± 25 V
Digital Input Voltage (Pins 6–22)
to DGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V, VDD +0.3 V
VPIN3 to DGND . . . . . . . . . . . . . . . . . . . . –0.3 V, VDD +0.3 V
AGND to DGND . . . . . . . . . . . . . . . . . . –0.3 V, VDD +0.3 V
Power Dissipation (Any Package)
To +75°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000 mW
Derates Above +75°C . . . . . . . . . . . . . . . . . . . . 10 mW/°C
Operating Temperature Range
Commercial (J, K Versions) . . . . . . . . . . . . . . 0°C to +70°C
Industrial (A, B Versions) . . . . . . . . . . . . . . –25°C to +85°C
Extended (S, T Versions) . . . . . . . . . . . . . –55°C to +125°C
Storage Temperature . . . . . . . . . . . . . . . . –65°C to +150°C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . +300°C
*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 sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
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 AD7538 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
PIN CONFIGURATION
DIP, SOIC
Figure 1. Timing Diagram
REV. A
–3–
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