REV. B
ADG526A/ADG527A
–4–
TIMING DIAGRAMS
3V
0V
3V
0V
WR
EN A0, A1, A2, (A3)
1.5V
2.0V
0.8V
tH
tW
tS
Figure 1.
Figure 1 shows the timing sequence for latching the switch
address and enable inputs. The latches are level-sensitive; there-
fore, while
WR is held low, the latches are transparent and the
switches respond to the address and enable inputs. This input
data is latched on the rising edge of
WR.
ORDERING GUIDE
Model
1
Temperature Range
Package Option
2
ADG526AKN
–40
°C to +85°C
N-28
ADG526AKR
–40
°C to +85°C
R-28
ADG526AKP
–40
°C to +85°C
P-28A
ADG526ABQ
–40
°C to +85°CQ-28
ADG526ATQ
3
–55
°C to +125°CQ-28
ADG526ATE
3
–55
°C to +125°C
E-28A
ADG527AKN
–40
°C to +85°C
N-28
ADG527AKR
–40
°C to +85°C
R-28
ADG527AKP
–40
°C to +85°C
P-28A
ADG527ABQ
–40
°C to +85°CQ-28
NOTES
1To order MIL-STD-883, Class B processed parts, add /883B to part number.
See Analog Devices Military Products Databook (1990) for military data.
2E = Leadless Ceramic Chip Carrier; N = Narrow Plastic DIP; P = Plastic
Leaded Chip Carrier; Q = CERDIP; R = 0.3" Small Outline IC (SOIC).
3Standard Military Drawing (SMD) assigned by DESC. SMD numbers are:
5962-89710013X (ADG526ATE/883B)
5962-8971001XX (ADG526ATQ/883B)
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 ADG526A/ADG527A 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
ABSOLUTE MAXIMUM RATINGS
1
(TA = 25
°C unless otherwise noted.)
VDD to VSS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 V
VDD to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 V
VSS to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –25 V
Analog Inputs
2
Voltage at S, D . . . . . . . . . . . . . . . . VSS – 2 V to VDD +2 V
. . . . . . . . . . . . . . . . . . . . . or 20 mA, Whichever Occurs First
Continuous Current, S or D . . . . . . . . . . . . . . . . . . . 20 mA
Pulsed Current S or D
1 ms Duration, 10% Duty Cycle . . . . . . . . . . . . . . . 40 mA
Digital Inputs
2
Voltage at A, EN,
WR, RS . . . . . . . . . V
SS – 4 V to VDD +4 V
. . . . . . . . . . . . . . . . . . . . . or 20 mA, Whichever Occurs First
Power Dissipation (Any Package)
Up to 75
°C by . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 470 mW
Derates above 75
°C by . . . . . . . . . . . . . . . . . . . . . 6 mW/°C
Operating Temperature
Commercial (K Version) . . . . . . . . . . . . . . . –40
°C to +85°C
Industrial (B Version) . . . . . . . . . . . . . . . . . –40
°C to +85°C
Extended (T Version) . . . . . . . . . . . . . . . . –55
°C to +125°C
Storage Temperature Range . . . . . . . . . . . . –65
°C to +150°C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . 300
°C
NOTES
1Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent 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
condition for extended periods may affect device reliability.
2Overvoltage at A, EN,
WR, RS, S, or D will be clamped by diodes. Current should
be limited to the maximum rating above.
tRS
3V
0V
VO
0V
RS
0.8VO
tOFF (RS)
1.5V
SWITCH
OUTPUT
Figure 2.
Figure 2 shows the Reset Pulsewidth, tRS, and Reset Turn-off
Time, tOFF (RS).
Note: All digital input signals rise and fall times measured from
10% to 90% of 3 V, tR = tF = 20 ns.