CMOS Latched
4-/8-Channel Analog Multiplexers
ADG528A
FEATURES
44 V Supply Maximum Rating
V
SS
to V
DD
Analog Signal Range
Single-/Dual-Supply Specifications
Wide Supply Ranges (10.8 V to 16.5 V)
Microprocessor Compatible (100 ns
WR
Pulse)
Extended Plastic Temperature Range
(–40°C to +85°C)
Low Leakage (20 pA typ)
Low Power Dissipation (28 mW max)
Available in 18-Lead DIP/SOIC and 20-Lead PLCC Packages
Superior Alternative to:
DG528
DG529
FUNCTIONAL BLOCK DIAGRAMS
ADG529A is obsolete
GENERAL DESCRIPTION
PRODUCT HIGHLIGHTS
The ADG528A and ADG529A are CMOS monolithic analog
multiplexers with eight channels and four dual channels, respec-
tively. On-chip latches facilitate microprocessor interfacing. The
ADG528A switches one of eight inputs to a common output,
depending on the state of three binary addresses and an enable
input. The ADG529A switches one of four differential inputs to
a common differential output, depending on the state of two
binary addresses and an enable input. Both devices have TTL
and 5 V CMOS logic-compatible digital inputs.
The ADG528A and ADG529A are designed on an enhanced
LC
2
MOS process, which gives an increased signal capability of
V
SS
to V
DD
and enables operation over a wide range of supply
voltages. The devices can comfortably operate anywhere in the
10.8 V to 16.5 V single- or dual-supply range. These
multiplex-ers also feature high switching and low R
ON
.
The ADG529A is no longer available.
1. Single-/dual-supply specifications with a wide tolerance.
The devices are specified in the 10.8 V to 16.5 V range for
both single- and dual-supplies.
2. Easily Interfaced
The ADG528A and ADG529A can be easily interfaced with
microprocessors. The
WR
signal latches the state of the
address control lines and the enable line. The
RS
signal
clears both the address and enable data in the latches result-
ing in no output (all switches off).
RS
can be tied to the
microprocessor reset pin.
3. Extended Signal Range
The enhanced LC
2
MOS processing results in a high breakdown
and an increased analog signal range of V
SS
to V
DD
.
4. Break-Before-Make Switching
Switches are guaranteed break-before-make so that input
signals are protected against momentary shorting.
5. Low Leakage
Leakage currents in the range of 20 pA make these multiplexers
suitable for high precision circuits.
ADG528A
ADG528A
ADG529A
K Version
–40°C to
+25°C +85°C
0.6
1.5
I
SS
Power Dissipation
20
0.2
10
2.8
NOTE
1
Sample tested at +25°C to ensure compliance.
Specifications subject to change without notice.
Parameter
POWER SUPPLY
I
DD
ADG528A
ADG528A
ADG529A
ADG529A
B Version
T Version
–40°C to
–55°C to
+25°C +85°C
+25°C +125°C
0.6
1.5
20
0.2
10
2.8
10
2.8
20
0.2
0.6
1.5
Units
Comments
mA typ V
IN
= V
INL
or V
INH
mA max
µA
typ
V
IN
= V
INL
or V
INH
mA max
mW typ
mW max
SINGLE SUPPLY
(V
DD
= +10.8 V to +16.5 V, V
SS
= GND = 0 V, unless otherwise noted.)
ADG528A
ADG529A
K Version
–40°C to
+25°C +85°C
GND GND
V
DD
V
DD
500
ADG528A
ADG528A
ADG529A
ADG529A
B Version
T Version
–40°C to
–55°C to
+25°C +85°C
+25°C +125°C
GND GND
V
DD
V
DD
500
1000
700
0.6
5
0.02
1
0.04
1
1
0.04
1
1
1000
GND GND
V
DD
V
DD
500
700
0.6
0.02
1
0.04
1
1
0.04
1
1
1000
5
50
100
50
100
50
25
50
100
50
100
50
25
Parameter
ANALOG SWITCH
Analog Signal Range
R
ON
Units
V min
V max
Ω
typ
Comments
R
ON
Drift
R
ON
Match
I
S
(OFF), Off Input
Leakage
I
D
(OFF), Off Input
Leakage
ADG528A
ADG529A
I
D
(ON), On Channel
Leakage
ADG528A
ADG529A
I
DIFF
, Differential Off
Output Leakage
(ADG529A only)
700
0.6
5
0.02
1
0.04
1
1
0.04
1
1
Ω
max
%/°C typ GND
≤
V
S
≤
+10 V, I
DS
= 0.5 mA
% typ
GND
≤
V
S
≤
+10 V, I
DS
= 0.5 mA
nA typ
nA max
nA typ
nA max
nA max
nA typ
nA max
nA max
nA max
GND
≤
V
S
≤
+10 V, I
DS
= 0.5 mA;
Test Circuit 1
50
100
50
100
50
25
V1 = +10 V/GND, V2 = GND/+10 V;
Test Circuit 2
V1 = +10 V/GND, V2 = GND/+10 V;
Test Circuit 3
V1 = +10 V/GND, V2 = GND/+10 V;
Test Circuit 4
V1 = +10 V/GND, V2 = GND/+10 V;
Test Circuit 5
DIGITAL CONTROL
V
INH
, Input High Voltage
V
INL
, Input Low Voltage
I
INL
or I
INH
C
IN
Digital Input
Capacitance
8
DYNAMIC CHARACTERISTICS
1
t
TRANSITION
300
t
OPEN
t
ON
(EN,
WR)
t
OFF
(EN,
RS)
t
W
Write Pulse Width
450
50
25
250
450
250
450
100
2.4
0.8
1
8
300
600
10
600
600
120
450
50
25
250
450
250
450
100
2.4
0.8
1
8
300
600
10
600
600
120
450
50
25
250
450
250
450
100
2.4
0.8
1
V min
V max
µA
max
pF max
ns typ
V
IN
= 0 to V
DD
V1 = +10 V/GND, V2 = GND/+10 V;
Test Circuit 6
Test Circuit 7
Test Circuits 8 and 9
Test Circuits 8 and 10
See Figure 1
600
10
600
600
130
ns max
ns typ
ns min
ns typ
ns max
ns typ
ns max
ns min
REV.
C
–3–
ADG528A
PIN CONFIGURATIONS
DIP/SOIC
PLCC
ABSOLUTE MAXIMUM RATINGS
1
(T
A
= +25°C, unless otherwise noted)
V
DD
to V
SS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 V
V
DD
to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 V
V
SS
to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –25 V
Analog Inputs
2
Voltage at S, D . . . . . . . . . V
SS
– 2 V to V
DD
+ 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
1
Voltage at A, EN,
WR, RS
. . . . . . V
SS
– 4 V to V
DD
+ 4 V or
20 mA, whichever Occurs First
Power Dissipation (Any Package)
Up to +75°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 470 mW
Derates above +75°C . . . . . . . . . . . . . . . . . . . . . . . 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
1
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.
2
Overvoltage at A, EN,
WR, RS,
S or D will be clamped by diodes. Current should
be limited to the maximum rating above.
ESD CAUTION
REV.
C
–5–
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