ADG784
PRODUCTIONCMOS 3V/5 V, Wide Bandwidth Quad 2:1 Mux in Chip Scale
- Part Models
- 2
- 1ku List Price
- Starting From $2.40
Overview
- Low Insertion Loss and
- On Resistance: 4 Typical On-Resistance Flatness <2
- Bandwidth >200 MHz
- Single 3 V/5 V Supply Operation
- Rail-to-Rail Operation
- Very Low Distortion: <1%
- Low Quiescent Supply Current (100 nA Typical)
- See datasheet for additional features
The ADG784 is a monolithic CMOS device comprising four 2:1 multiplexer/demultiplexers with high impedance outputs. The CMOS process provides low power dissipation yet gives high switching speed and low on resistance. The on-resistance variation is typically less than 0.5 Ω with an input signal ranging from 0 V to 5 V.
The bandwidth of the ADG784 is greater than 200 MHz and this, coupled with low distortion (typically 0.5%), makes the part suitable for switching fast ethernet signals.
The on-resistance profile is very flat over the analog input range ensuring excellent linearity and low distortion when switching audio signals. Fast switching speed, coupled with high signal bandwidth, also makes the part suitable for video signal switching. CMOS construction ensures ultralow power dissipation making the parts ideally suited for portable and battery powered instruments.
The ADG784 operates from a single 3.3 V/5 V supply and is TTL logic compatible. The control logic for each switch is shown in the Truth Table.
These switches conduct equally well in both directions when ON, and have an input signal range that extends to the supplies. In the OFF condition, signal levels up to the supplies are blocked. The ADG784 switches exhibit break-before-make switching action.
PPRODUCT HIGHLIGHTS
- Also Available as ADG774 in 16-Lead QSOP and SOIC.
- Wide Bandwidth Data Rates >200 MHz.
- Ultralow Power Dissipation.
- Extended Signal Range. The ADG784 is fabricated on a CMOS process giving an increased signal range that fully extends to the supply rails.
- Low Leakage over Temperature.
- Break-Before-Make Switching. This prevents channel shorting when the switches are configured as a multiplexer.
- Crosstalk is typically –70 dB @ 30 MHz.
- Off isolation is typically –60 dB @ 10 MHz.
- Available in Chip Scale Package (CSP).
APPLICATIONS
- 100VG-AnyLAN
- Token Ring 4 Mbps/16 Mbps
- ATM25/155
- NIC Adapter and Hubs
- Audio and Video Switching
- Relay Replacement
Documentation
Data Sheet 1
Technical Articles 2
Product Selection Guide 1
Analog Dialogue 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| ADG784BCPZ | 20-Lead LFCSP (4mm x 4mm w/ EP) | ||
| ADG784BCPZ-REEL7 | 20-Lead LFCSP (4mm x 4mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
May 22, 2012 - 12_0063 Conversion of Select Sizes of LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to ASE-Korea. |
||
| ADG784BCPZ | PRODUCTION | |
| ADG784BCPZ-REEL7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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LTspice
Models for the following parts are available in LTspice:
- ADG784
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.