CMOS 3 V/5 V, Wide Bandwidth Quad 2:1 a Mux in Chip Scale Package ADG784 FEATURES FUNCTIONAL BLOCK DIAGRAM Low Insertion Loss and On Resistance: 4 Typical On-Resistance Flatness <2 ADG784 Bandwidth >200 MHz S1A Single 3 V/5 V Supply Operation D1 S1B Rail-to-Rail Operation Very Low Distortion: <1% S2A D2 Low Quiescent Supply Current (100 nA Typical) S2B Fast Switching Times S3A t 10 ns ON D3 t 4 ns S3B OFF TTL/CMOS Compatible S4A D4 For Functionally Equivalent Devices in 16-Lead QSOP/ S4B SOIC Packages, See ADG774 1-OF-2 APPLICATIONS DECODER 100VG-AnyLAN Token Ring 4 Mbps/16 Mbps IN EN ATM25/155 NIC Adapter and Hubs Audio and Video Switching Relay Replacement These switches conduct equally well in both directions when GENERAL DESCRIPTION ON, and have an input signal range that extends to the sup- The ADG784 is a monolithic CMOS device comprising four plies. In the OFF condition, signal levels up to the supplies 2:1 multiplexer/demultiplexers with high impedance outputs. are blocked. The ADG784 switches exhibit break-before- The CMOS process provides low power dissipation yet gives make switching action. high switching speed and low on resistance. The on-resistance variation is typically less than 0.5 with an input signal ranging PRODUCT HIGHLIGHTS from 0 V to 5 V. 1. Also Available as ADG774 in 16-Lead QSOP and SOIC. The bandwidth of the ADG784 is greater than 200 MHz and 2. Wide Bandwidth Data Rates >200 MHz. this, coupled with low distortion (typically 0.5%), makes the part suitable for switching fast ethernet signals. 3. Ultralow Power Dissipation. The on-resistance profile is very flat over the full analog input 4. Extended Signal Range. range ensuring excellent linearity and low distortion when switch- The ADG784 is fabricated on a CMOS process giving an ing audio signals. Fast switching speed, coupled with high signal increased signal range that fully extends to the supply rails. bandwidth, also makes the parts suitable for video signal switch- 5. Low Leakage over Temperature. ing. CMOS construction ensures ultralow power dissipation 6. Break-Before-Make Switching. making the parts ideally suited for portable and battery powered This prevents channel shorting when the switches are config- instruments. ured as a multiplexer. The ADG784 operates from a single 3.3 V/5 V supply and is 7. Crosstalk is typically 70 dB 30 MHz. TTL logic compatible. The control logic for each switch is shown in the Truth Table. 8. Off isolation is typically 60 dB 10 MHz. 9. Available in Chip Scale Package (CSP). REV. A Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. use, nor for any infringements of patents or other rights of third parties that Tel: 781/329-4700 www.analog.com may result from its use. No license is granted by implication or otherwise 781/461-3113 2013 under any patent or patent rights of Analog Devices. Fax: Analog Devices, Inc., ADG784SPECIFICATIONS SINGLE SUPPLY (V = 5 V 10%, GND = 0 V. All specifications T to T unless otherwise noted.) DD MIN MAX B Version T to MIN Parameter 25 CT Unit Test Conditions/Comments MAX ANALOG SWITCH Analog Signal Range 0 V to V V DD On Resistance (R ) 2.2 typ V = 0 V to V , I = 10 mA ON D DD S 5 max On Resistance Match Between Channels (R ) 0.15 typ V = 0 V to V , I = 10 mA ON D DD S 0.5 max On Resistance Flatness (R ) 0.5 typ V = 0 V to V I = 10 mA FLAT(ON) D DD S 1 max LEAKAGE CURRENTS Source OFF Leakage I (OFF) 0.01 nA typ V = 4.5 V, V = 1 V V = 1 V, V = 4.5 V S D S D S 0.5 1 nA max Test Circuit 2 Drain OFF Leakage I (OFF) 0.01 nA typ V = 4.5 V, V = 1 V V = 1 V, V = 4.5 V D D S D S 0.5 1 nA max Test Circuit 2 Channel ON Leakage I , I (ON) 0.01 nA typ V = V = 4.5 V V = V = 1 V Test Circuit 3 D S D S D S 0.5 1 nA max DIGITAL INPUTS Input High Voltage, V 2.4 V min INH Input Low Voltage, V 0.8 V max INL Input Current I or I 0.001 A typ V = V or V INL INH IN INL INH 0.5 A max 2 DYNAMIC CHARACTERISTICS t 10 ns typ R = 100 , C = 35 pF, ON L L 20 ns max V = 3 V Test Circuit 4 S t 4 ns typ R = 100 , C = 35 pF, OFF L L 8 ns max V = 3 V Test Circuit 4 S Break-Before-Make Time Delay, t 5 ns typ R = 100 , C = 35 pF, D L L 1 ns min V = V = 5 V Test Circuit 5 S1 S2 Off Isolation 65 dB typ R = 100 , f = 10 MHz Test Circuit 7 L Channel-to-Channel Crosstalk 75 dB typ R = 100 , f = 10 MHz Test Circuit 8 L Bandwidth 3 dB 240 MHz typ R = 100 Test Circuit 6 L Distortion 0.5 % typ R = 100 L Charge Injection 10 pC typ C = 1 nF Test Circuit 9 L C (OFF) 10 pF typ f = 1 kHz S C (OFF) 20 pF typ f = 1 kHz D C , C (ON) 30 pF typ f = 1 MHz D S POWER REQUIREMENTS V = 5.5 V DD Digital Inputs = 0 V or V DD I 1 A max DD 0.001 A typ I 1 A typ V = 5 V IN IN I 100 mA max V /V = 0 V O S D NOTES 1 Temperature ranges are as follows: B Version, 40C to +85C. 2 Guaranteed by design, not subject to production test. Specifications subject to change without notice. 2 REV. A