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ADG428BNADN/a200avaiLC2MOS Latchable 4-/8-Channel High Performance Analog Multiplexers
ADG428BPADN/a26avaiLC2MOS Latchable 4-/8-Channel High Performance Analog Multiplexers
ADG428BRADN/a148avaiLC2MOS Latchable 4-/8-Channel High Performance Analog Multiplexers
ADG428TQADN/a5avaiLC2MOS Latchable 4-/8-Channel High Performance Analog Multiplexers
ADG429BPADN/a11avaiLC2MOS Latchable 4-/8-Channel High Performance Analog Multiplexers


ADG428BN ,LC2MOS Latchable 4-/8-Channel High Performance Analog Multiplexersapplications where the analog signal is unipolar, theinputs, address and enable inputs are TTL comp ..
ADG428BP ,LC2MOS Latchable 4-/8-Channel High Performance Analog MultiplexersSPECIFICATIONS1(V = +15 V, V = –15 V, GND = 0 V, WR = 0 V, RS = 2.4 V unless otherwise noted)DUAL S ..
ADG428BR ,LC2MOS Latchable 4-/8-Channel High Performance Analog MultiplexersCHARACTERISTICSt 250 250 ns typ R = 1 MW , C = 35 pF;TRANSITION L L350 450 350 450 ns max V = 10 V/ ..
ADG428TQ ,LC2MOS Latchable 4-/8-Channel High Performance Analog MultiplexersCHARACTERISTICSt 110 110 ns typ R = 1 MW , C = 35 pF;TRANSITION L L = – 10 V, V = 710 V;250 300 250 ..
ADG429BP ,LC2MOS Latchable 4-/8-Channel High Performance Analog MultiplexersSpecifications subject to change without notice.–2– REV. CADG428/ADG4291(V = +12 V, V = 0 V, GND = ..
ADG431ABR ,LC2MOS Precision Quad SPST SwitchesCHARACTERISTICS V = +12 V, V = 0 VDD SS165 165 ns typ R = 300 W , C = 35 pF;tON L L = +8 V; Test Ci ..
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ADG428BN-ADG428BP-ADG428BR-ADG428TQ-ADG429BP
LC2MOS Latchable 4-/8-Channel High Performance Analog Multiplexers
REV. C
FUNCTIONAL BLOCK DIAGRAMS2MOS Latchable 4-/8-Channel
High Performance Analog Multiplexers
FEATURES
44 V Supply Maximum Ratings
VSS to VDD Analog Signal Range
Low On Resistance (60 V typ)
Low Power Consumption (1.6 mW max)
Low Charge Injection (<4 pC typ)
Fast Switching
Break-Before-Make Switching Action
Plug-In Replacement for DG428/DG429
APPLICATIONS
Automatic Test Equipment
Data Acquisition Systems
Communication Systems
Avionics and Military Systems
Microprocessor Controlled Analog Systems
Medical Instrumentation
GENERAL DESCRIPTION

The ADG428 and ADG429 are monolithic CMOS analog
multiplexers comprising eight single channels and four differen-
tial channels respectively. On-chip address and control latches
facilitate microprocessor interfacing. The ADG428 switches one
of eight inputs to a common output as determined by the 3-bit
binary address lines A0, A1 and A2. The ADG429 switches one
of four differential inputs to a common differential output as
determined by the 2-bit binary address lines A0 and A1. An EN
input on both devices is used to enable or disable the device.
When disabled, all channels are switched OFF. All the control
inputs, address and enable inputs are TTL compatible over the
full specified operating temperature range. This makes the part
suitable for bus-controlled systems such as data acquisition sys-
tems, process controls, avionics and ATEs because the TTL-
compatible address latches simplify the digital interface design
and reduce the board space required.
The ADG428/ADG429 are designed on an enhanced LC2MOS
process that provides low power dissipation yet gives high switching
speed and low on resistance. Each channel conducts equally well
in both directions when ON and has an input signal range that
extends to the supplies. In the OFF condition, signal levels up to
the supplies are blocked. All channels exhibit break-before-make
switching action, preventing momentary shorting when switching
channels. Inherent in the design is low charge injection for mini-
mum transients when switching the digital inputs.
The ADG428/ADG429 are improved replacements for the
DG428/DG429 Analog Multiplexers.
PRODUCT HIGHLIGHTS
Extended Signal Range
The ADG428/ADG429 are fabricated on an enhanced2MOS process, giving an increased signal range that ex-
tends to the supply rails.Low Power DissipationLow RONSingle/Dual Supply OperationSingle Supply Operation
For applications where the analog signal is unipolar, the
ADG428/ADG429 can be operated from a single rail power
supply. The parts are fully specified with a single +12 V
power supply and will remain functional with single supplies
as low as +5 V.
ADG428/ADG429–SPECIFICATIONS
DUAL SUPPLY1

LEAKAGE CURRENTS
DYNAMIC CHARACTERISTICS
POWER REQUIREMENTS
(VDD = +15 V, VSS = –15 V, GND = 0 V, WR = 0 V, RS = 2.4 V unless otherwise noted)
ADG428/ADG429
SINGLE SUPPLY1

DYNAMIC CHARACTERISTICS
POWER REQUIREMENTS
(VDD = +12 V, VSS = 0 V, GND = 0 V, WR = 0 V, RS = 2.4 V unless otherwise noted)
ADG428/ADG429
CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000V readily
accumulate on the human body and test equipment and can discharge without detection.
ABSOLUTE MAXIMUM RATINGS1

(TA = +25°C unless otherwise noted.)
VDD to VSS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+44 V
VDD to GND . . . . . . . . . . . . . . . . . . . . . . . . . .–0.3 V to +25 V
VSS to GND . . . . . . . . . . . . . . . . . . . . . . . . . . .+0.3 V to –25 V
Analog, Digital Inputs2 . . . . . . . . . .VSS – 2 V to VDD + 2 V or
30 mA, Whichever Occurs First
Continuous Current, S or D . . . . . . . . . . . . . . . . . . . . .30 mA
Peak Current, S or D . . . . . . . . . . . . . . . . . . . . . . . . . .100 mA
(Pulsed at 1 ms, 10% Duty Cycle Max)
Operating Temperature Range
Industrial (B Version) . . . . . . . . . . . . . . . . .–40°C to +85°C
Extended (T Version) . . . . . . . . . . . . . . . .–55°C to +125°C
Storage Temperature Range . . . . . . . . . . . . .–65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . .+150°C
Cerdip Package, Power Dissipation . . . . . . . . . . . . . . .900 mWJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . . .73°C/W
Lead Temperature, Soldering (10 sec) . . . . . . . . . . .+300°C
Plastic Package, Power Dissipation . . . . . . . . . . . . . . .470 mWJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . .115°C/W
Lead Temperature, Soldering (10 sec) . . . . . . . . . . .+260°C
SOIC Package, Power Dissipation . . . . . . . . . . . . . . . .600 mWJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . . .77°C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . .+215°C
PLCC Package, Power Dissipation . . . . . . . . . . . . . . .800 mWJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . . .90°C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . .+215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . .+220°C
NOTESStresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; 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. Only one absolute
maximum rating may be applied at any one time.Overvoltages at A, EN, WR, RS, S or D will be clamped by internal diodes. Current
should be limited to the maximum ratings given.
ORDERING GUIDE

NOTESFor availability of MIL-STD-883, Class B processed parts, contact factory.N = Plastic DIP; P = Plastic Leaded Chip Carrier (PLCC); Q = Cerdip;
R = Small Outline IC (SOIC).
ADG429 PIN CONFIGURATIONS
DIPPLCC
ADG428 PIN CONFIGURATIONS
ADG428 Truth Table
Latching
Reset
Transparent Operation
ADG429 Truth Table

Latching
Reset
Transparent Operation
TERMINOLOGY

IS (OFF)
ID (OFF)
ID, IS (ON)
VD (VS)
Crosstalk
Off Isolation
Charge
Injection
IDD
ADG428/ADG429
TIMING DIAGRAMS

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.
Figure 2.
Figure 2 shows the Reset Pulsewidth, tRS, and the Reset Turnoff
Time, tOFF, (RS).
Note:All digital input signals rise and fall times are measured
from 10% to 90% of 3 V. tr = tf = 20 ns.
Typical Characteristics
VD (VS) – Volts
0510
110

Figure 3.RON as a Function of VD (VS): Dual Supply
Voltage
VD (VS) – Volts

–1515–10–50510

Figure 5.RON as a Function of VD (VS): Single Supply
Voltage
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