AD9501 Analog Devices, AD9501 Datasheet - Page 4

• Manufacturer Part Number: AD9501
• Description: Digitally Programmable Delay Generator
• Manufacturer: Analog Devices

AD9501
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 AD9501 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.
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12-19
20
+V
LATCH
TRIGGER
RESET
DAC OUTPUT
C
R
OFFSET ADJUST Normally connected to GROUND. Can be used to adjust minimum propagation delay (t
GROUND
OUTPUT
+V
D
GROUND
Name
SET
EXT
0
–D
S
S
7
Function
Positive voltage supply; nominally +5 V.
TTL/CMOS register control line. Logic HIGH latches input data D
transparent for logic LOW.
TTL/CMOS-compatible input. Rising edge triggers the internal ramp generator, and begins
the delay cycle.
TTL/CMOS-compatible input. Logic HIGH resets the ramp voltage and OUTPUT.
Output voltage of the internal digital-to-analog converter.
Optional external capacitor connected to +V
to determine full-scale delay range (t
External resistor to ground, used to determine full-scale delay range (t
see Theory of Operation text.
Circuit ground return.
TTL-compatible delayed output pulse.
Positive voltage supply; nominally +5 V.
TTL/CMOS-compatible inputs, used to set the programmed delay of the AD9501 delayed
output. D
Circuit ground return.
0
is LSB and D
AD9501 PIN DESCRIPTIONS
AD9501 Equivalent Circuits
7
–4–
is MSB.
DFS
).
S
; used with R
SET
and 8.5 pF internal capacitor
WARNING!
0
–D
DFS
7
. Register is
).
ESD SENSITIVE DEVICE
REV. A
PD
);