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ADG429 Dataheets PDF



Part Number ADG429
Manufacturers Analog Devices
Logo Analog Devices
Description LC2MOS Latchable 4-/8-Channel High Performance Analog Multiplexers
Datasheet ADG429 DatasheetADG429 Datasheet (PDF)

a FEATURES 44 V Supply Maximum Ratings V SS to VDD Analog Signal Range 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 DG428/DG429 APPLICATIONS Automatic Test Equipment Data Acquisition Systems Communication Systems Avionics and Military Systems Microprocessor Controlled Analog Systems Medical Instrumentation LC2MOS Latchable 4-/8-Channel High Performance Analog Multiplexer.

  ADG429   ADG429



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a FEATURES 44 V Supply Maximum Ratings V SS to VDD Analog Signal Range 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 DG428/DG429 APPLICATIONS Automatic Test Equipment Data Acquisition Systems Communication Systems Avionics and Military Systems Microprocessor Controlled Analog Systems Medical Instrumentation LC2MOS Latchable 4-/8-Channel High Performance Analog Multiplexers ADG428/ADG429 FUNCTIONAL BLOCK DIAGRAMS ADG428 S1 S1A DA S4A D S1B DB S8 S4B ADG429 DECODERS/DRIVERS LATCHES WR A2 A1 A0 EN RS WR DECODERS/DRIVERS LATCHES RS A1 A0 EN GENERAL DESCRIPTION PRODUCT HIGHLIGHTS The ADG428 and ADG429 are monolithic CMOS analog multiplexers comprising eight single channels and four differential 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 systems, process controls, avionics and ATEs because the TTLcompatible 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 minimum transients when switching the digital inputs. The ADG428/ADG429 are improved replacements for the DG428/DG429 Analog Multiplexers. REV. C 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. 1. Extended Signal Range The ADG428/ADG429 are fabricated on an enhanced LC2MOS process, giving an increased signal range that extends to the supply rails. 2. Low Power Dissipation 3. Low RON 4. Single/Dual Supply Operation 5. Single Supply Operation For applications where the analog signal is unipolar, the ADG428/ADG42.


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