ADG429BP AD [Analog Devices], ADG429BP Datasheet

ADG429BP

Manufacturer Part Number

ADG429BP

Description

LC2MOS Latchable 4-/8-Channel High Performance Analog Multiplexers

Manufacturer

AD [Analog Devices]

Datasheet

1.ADG429BP.pdf (12 pages)

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Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

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 LC

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.

REV. C

FEATURES

44 V Supply Maximum Ratings

Low On Resistance (60

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

to V

Analog Signal Range

typ)

High Performance Analog Multiplexers

MOS

PRODUCT HIGHLIGHTS

1. Extended Signal Range

2. Low Power Dissipation

3. Low R

4. Single/Dual Supply Operation

5. Single Supply Operation

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

Fax: 781/326-8703

The ADG428/ADG429 are fabricated on an enhanced

tends to the supply rails.

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.

MOS Latchable 4-/8-Channel

DECODERS/DRIVERS

MOS process, giving an increased signal range that ex-

ADG428

LATCHES

FUNCTIONAL BLOCK DIAGRAMS

World Wide Web Site: http://www.analog.com

ADG428/ADG429

S1A

S4A

S1B

S4B

DECODERS/DRIVERS

ADG429

LATCHES

Related parts for ADG429BP

ADG429BP Summary of contents

Page 1

FEATURES 44 V Supply Maximum Ratings Analog Signal Range SS DD Low On Resistance (60 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 ...

Page 2

ADG428/ADG429–SPECIFICATIONS 1 DUAL SUPPLY ( Parameter ANALOG SWITCH Analog Signal Range LEAKAGE CURRENTS Source OFF Leakage I (OFF) S Drain OFF Leakage I (OFF) D ADG428 ADG429 Channel ON Leakage ...

Page 3

SINGLE SUPPLY ( Parameter ANALOG SWITCH Analog Signal Range LEAKAGE CURRENTS Source OFF Leakage I (OFF) S Drain OFF Leakage I (OFF) D ADG428 ADG429 Channel ON Leakage I , ...

Page 4

... ADG428BP – +85 C ADG428BR – +85 C ADG428TQ – +125 C ADG429BN – +85 C ADG429BP – +85 C ADG429TQ – +125 C NOTES 1 For availability of MIL-STD-883, Class B processed parts, contact factory Plastic DIP Plastic Leaded Chip Carrier (PLCC Cerdip; ...

Page 5

TERMINOLOGY V Most positive power supply potential Most negative power supply potential in dual SS supplies. In single supply applications, it may be connected to ground. GND Ground (0 V) reference. R Ohmic resistance between D and S. ...

Page 6

ADG428/ADG429 TIMING DIAGRAMS A0, A1, (A2 Figure 1. Figure 1 shows the timing sequence for latching the switch address and enable inputs. The latches are level sensitive; there- fore, ...

Page 7

V = +15V DD 5500 V = –15V SS 5000 4500 4000 3500 3000 2500 2000 1500 1000 500 0 10 100 1k 10k SWITCHING FREQUENCY – Hz Figure 7. Positive Supply Current vs. Switching Frequency 130 V = ...

Page 8

ADG428/ADG429 100 100 1k 10k 100k FREQUENCY – Hz Figure 13. OFF Isolation vs. Frequency 0 +15V –15V +25 C ...

Page 9

TEST CIRCUITS V1 Test Circuit 1. On Resistance (OFF GND Test Circuit ...

Page 10

ADG428/ADG429 3V ENABLE DRIVE 50% – (EN OUTPUT ( 50 OUTPUT 50 OUTPUT 0V 50% t (EN) OFF 0.9V 0.9V ...

Page 11

EN V OUT INJ ADG428 GND Test Circuit 11. OFF Isolation REV OUT ...

Page 12

ADG428/ADG429 PLCC (P-20A) 0.180 (4.57) 0.165 (4.19) 0.048 (1.21) 0.056 (1.42) 0.042 (1.07) 0.042 (1.07) 0.048 (1.21 0.042 (1.07 PIN 1 0.050 IDENTIFIER (1.27) TOP VIEW BSC (PINS DOWN 0.020 (0.50) 0.356 ...

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