CMOS 1.8 V to 5.5 V, 2.5 2:1 Mux/SPDT Switch in SOT-23 ADG719

Transcription

1 a FEATURE 1.8 V to 5.5 ingle upply 4 (Max) On Resistance.75 (Typ) On Resistance Flatness Automotive Temperature Range: 4 C to +125 C 3 db Bandwidth > 2 MHz Rail-to-Rail Operation 6-Lead OT-23 Package and 8-Lead OIC Package Fast witching Times: t ON = 12 ns t OFF = 6 ns Typical Power Consumption (<.1 W) TTL/CMO Compatible APPLICATION Battery-Powered ystems Communication ystems ample-and-hold ystems Audio ignal Routing Video witching Mechanical Reed Relay Replacement CMO 1.8 V to 5.5 V, 2.5 2:1 Mux/PT witch in OT-23 FUNCTIONAL BLOCK IAGRAM 2 1 AG719 WITCHE HOWN FOR A LOGIC 1 PUT AG719 GENERAL ECRIPTION The AG719 is a monolithic CMO PT switch. This switch is designed on a submicron process that provides low power dissipation yet gives high switching speed, low on resistance, and low leakage currents. The AG719 can operate from a single-supply range of 1.8 V to 5.5 V, making it ideal for use in battery-powered instruments and with the new generation of ACs and ACs from Analog evices. Each switch of the AG719 conducts equally well in both directions when on. The AG719 exhibits break-before-make switching action. Because of the advanced submicron process, 3 db bandwidths of greater than 2 MHz can be achieved. The AG719 is available in a 6-lead OT-23 package and an 8-lead µoic package. PROUCT HIGHLIGHT V to 5.5 ingle-upply Operation. The AG719 offers high performance, including low on resistance and fast switching times, and is fully specified and guaranteed with 3 V and 5 V supply rails. 2. Very Low R ON (4 Ω Max at 5 V and 1 Ω Max at 3 V). At 1.8 V operation, R ON is typically 4 Ω over the temperature range. 3. Automotive Temperature Range: 4 C to +125 C 4. On Resistance Flatness (R FLAT(ON) ) (.75 Ω typ) db Bandwidth > 2 MHz. 6. Low Power issipation. CMO construction ensures low power dissipation. 7. Fast t ON /t OFF. 8. Tiny 6-lead OT-23 and 8-lead µoic packages. REV. B Information furnished by Analog evices is believed to be accurate and reliable. However, no responsibility is assumed by Analog evices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog evices. One Technology Way, P.O. Box 916, Norwood, MA , U..A. Tel: 781/ Fax: 781/ Analog evices, Inc., 22

2 AG719 PECIFICATION 1 B Version ( = 5 V 1%, GN = V.) 4 C to 4 C to Parameter +25 C +85 C +125 C Unit Test Conditions/Comments ANALOG WITCH Analog ignal Range V to V On Resistance (R ON ) = V to, I = 1 ma; 2.5 Ω typ Test Circuit Ω max On Resistance Match Between Channels ( R ON ).1 Ω typ = V to, I = 1 ma.4.4 Ω max On Resistance Flatness (R FLAT(ON) ).75 Ω typ = V to, I = 1 ma Ω max LEAKAGE CURRENT = 5.5 V ource Off Leakage I (Off) ±.1 na typ = 4.5 V/1 V, V = 1 V/4.5 V; ±.25 ±.35 1 na max Test Circuit 2 Channel On Leakage I, I (On) ±.1 na typ = V = 1 V or = V = 4.5 V; ±.25 ±.35 5 na max Test Circuit 3 IGITAL PUT Input High Voltage, V H 2.4 V min Input Low Voltage, V L.8 V max Input Current I L or I H.5 µa typ V = V L or V H ±.1 µa max YNAMIC CHARACTERITIC 2 t ON 7 ns typ R L = 3 Ω, C L = 35 pf 12 ns max = 3 V; Test Circuit 4 t OFF 3 ns typ R L = 3 Ω, C L = 35 pf 6 ns max = 3 V; Test Circuit 4 Break-Before-Make Time elay, t 8 ns typ R L = 3 Ω, C L = 35 pf, 1 ns min 1 = 2 = 3 V; Test Circuit 5 Off Isolation 67 db typ R L = 5 Ω, C L = 5 pf, f = 1 MHz 87 db typ R L = 5 Ω, C L = 5 pf, f = 1 MHz; Test Circuit 6 Channel-to-Channel Crosstalk 62 db typ R L = 5 Ω, C L = 5 pf, f = 1 MHz 82 db typ R L = 5 Ω, C L = 5 pf, f = 1 MHz; Test Circuit 7 Bandwidth 3 db 2 MHz typ R L = 5 Ω, C L = 5 pf; Test Circuit 8 C (Off) 7 pf typ C, C (On) 27 pf typ POWER REQUIREMENT I.1 µa typ 1. µa max NOTE 1 Temperature range is as follows: B Version: 4 C to +125 C. 2 Guaranteed by design, not subject to production test. pecifications subject to change without notice. = 5.5 V igital Inputs = V or 5.5 V 2 REV. B

3 PECIFICATION 1 B Version 4 C to 4 C to Parameter +25 C +85 C +125 C Unit Test Conditions/Comments ANALOG WITCH Analog ignal Range V to V On Resistance (R ON ) 6 7 Ω typ = V to, I = 1 ma; 1 12 Ω max Test Circuit 1 On Resistance Match Between Channels ( R ON ).1 Ω typ = V to, I = 1 ma.4.4 Ω max On Resistance Flatness (R FLAT(ON) ) 2.5 Ω typ = V to, I = 1 ma AG719 LEAKAGE CURRENT = 3.3 V ource Off Leakage I (Off) ±.1 na typ = 3 V/1 V, V = 1 V/3 V; ±.25 ±.35 1 na max Test Circuit 2 Channel On Leakage I, I (On) ±.1 na typ = V = 1 V or = V = 3 V; ±.25 ±.35 5 na max Test Circuit 3 IGITAL PUT Input High Voltage, V H 2. V min Input Low Voltage, V L.8 V max Input Current I L or I H.5 µa typ V = V L or V H ±.1 µa max YNAMIC CHARACTERITIC 2 t ON 1 ns typ R L = 3 Ω, C L = 35 pf 15 ns max = 2 V; Test Circuit 4 t OFF 4 ns typ R L = 3 Ω, C L = 35 pf 8 ns max = 2 V; Test Circuit 4 Break-Before-Make Time elay, t 8 ns typ R L = 3 Ω, C L = 35 pf 1 ns min 1 = 2 = 2 V; Test Circuit 5 Off Isolation 67 db typ R L = 5 Ω, C L = 5 pf, f = 1 MHz 87 db typ R L = 5 Ω, C L = 5 pf, f = 1 MHz; Test Circuit 6 Channel-to-Channel Crosstalk 62 db typ R L = 5 Ω, C L = 5 pf, f = 1 MHz 82 db typ R L = 5 Ω, C L = 5 pf, f = 1 MHz; Test Circuit 7 Bandwidth 3 db 2 MHz typ R L = 5 Ω, C L = 5 pf; Test Circuit 8 C (Off) 7 pf typ C, C (On) 27 pf typ POWER REQUIREMENT ( = 3 V 1%, GN = V.) I.1 µa typ 1. µa max NOTE 1 Temperature range is as follows: B Version: 4 C to +125 C. 2 Guaranteed by design, not subject to production test. pecifications subject to change without notice. = 3.3 V igital Inputs = V or 3.3 V REV. B 3

4 AG719 ABOLUTE MAXIMUM RATG 1 (T A = 25 C, unless otherwise noted.) to GN V to +7 V Analog, igital Inputs V to +.3 V or ma, Whichever Occurs First Peak Current, or ma (Pulsed at 1 ms, 1% uty Cycle Max) Continuous Current, or ma Operating Temperature Range Industrial (B Version) C to +125 C torage Temperature Range C to +15 C Junction Temperature C µoic Package, Power issipation mw θ JA Thermal Impedance C/W θ JC Thermal Impedance C/W OT-23 Package, Power issipation mw θ JA Thermal Impedance C/W θ JC Thermal Impedance C/W Lead Temperature, oldering Vapor Phase (6 sec) C Infrared (15 sec) C E kv NOTE 1 tresses above those listed under Absolute Maximum Ratings may cause permanent 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. 2 Overvoltages at,, or will be clamped by internal diodes. Current should be limited to the maximum ratings given. Table I. Truth Table AG719 witch 1 witch 2 ON OFF 1 OFF ON P CONFIGURATION TERMOLOGY Most Positive Power upply Potential GN Ground ( V) Reference ource Terminal. May be an input or output. rain Terminal. May be an input or output. Logic Control Input R ON Ohmic Resistance between and R ON On Resistance Match between Any Two Channels i.e., R ON max R ON min R FLAT(ON) Flatness is defined as the difference between the maximum and minimum value of on resistance, as measured over the specified analog signal range. I (Off) ource Leakage Current with the witch Off I, I (On) Channel Leakage Current with the witch On V ( ) Analog Voltage on Terminals and C (Off) Off witch ource Capacitance C, C (On) On witch Capacitance t ON elay between Applying the igital Control Input and the Output witching On t OFF elay between Applying the igital Control Input and the Output witching Off t Off Time or On Time Measured between the 9% Points of Both witches, when witching From One Address tate to Another Crosstalk A Measure of Unwanted ignal That Is Coupled through from One Channel to Another as a Result of Parasitic Capacitance Off Isolation A Measure of Unwanted ignal Coupling through an Off witch Bandwidth The Frequency at Which the Output is Attenuated by 3 dbs On Response The Frequency Response of the On witch Insertion Loss Loss due to On Resistance of witch 6-Lead OT-23 (RT-6) 8-Lead OIC (RM-8) GN AG719 TOP VIEW (Not to cale) GN AG719 7 TOP VIEW (Not to cale) NC NC NC = NO CONNECT ORERG GUIE Model Temperature Range Brand* Package escription Package Option AG719BRM 4 C to +125 C 5B µoic (Micromall Outline IC) [MOP] RM-8 AG719BRT 4 C to +125 C 5B OT-23 (Plastic urface Mount) RT-6 *Branding on these packages is limited to three characters due to space constraints. CAUTION E (electrostatic discharge) sensitive device. Electrostatic charges as high as 4 V readily accumulate on the human body and test equipment and can discharge without detection. Although the AG719 features proprietary E protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper E precautions are recommended to avoid performance degradation or loss of functionality. WARNG! E ENITIVE EVICE 4 REV. B

5 Typical Performance Characteristics AG = 2.7V T A = 25 C.15.1 = 5V V = 4.5V/1V = 1V/4.5V R ON = 3.V = 5.V = 4.5V CURRENT na.5 I, I (ON) I (OFF) V OR RA OR OURCE VOLTAGE V TPC 1. On Resistance vs. V ( ), ingle upplies TEMPERATURE C TPC 4. Leakage Currents vs. Temperature R ON = 3V C C 4. 4 C V OR RA OR OURCE VOLTAGE V CURRENT na I (OFF) I, I (ON) = 3V V = 3V/1V = 1V/3V TEMPERATURE C TPC 2. On Resistance vs. V ( ) for ifferent Temperatures, = 3 V TPC 5. Leakage Currents vs. Temperature = 5V 1m = 5V 5. 1m R ON C +25 C 4 C I UPPLY A 1 1 1n n V OR RA OR OURCE VOLTAGE V 1n k 1k 1k 1M 1M 1M FREQUENCY Hz TPC 3. On Resistance vs. V ( ) for ifferent Temperatures, = 5 V TPC 6. upply Current vs. Input witching Frequency REV. B 5

6 AG = 5V, 3V = 5V 5 OFF IOLATION db ON REPONE db k 1k 1M 1M 1M FREQUENCY Hz 6 1k 1k 1M 1M 1M FREQUENCY Hz TPC 7. Off Isolation vs. Frequency TPC 9. On Response vs. Frequency 3 4 = 5V, 3V 12 1 CROTALK db Q J pc V 5V k 1k 1M 1M 1M FREQUENCY Hz TPC 8. Crosstalk vs. Frequency V TPC 1. Charge Injection vs. ource Voltage 6 REV. B

7 Test Circuits AG719 I V1 R ON = V1/I I (OFF) I (OFF) A A V I (ON) A V Test Circuit 1. On Resistance Test Circuit 2. Off Leakage Test Circuit 3. On Leakage.1 F V 5% 5% GN R L 3 C L 35pF t ON 9% 9% t OFF Test Circuit 4. witching Times.1 F R L2 3 C L2 35pF V V V 5% 5% 5% 5% V GN t t Test Circuit 5. Break-Before-Make Time elay, t.1 F.1 F V GN NETWORK ANALYZER R L OFF IOLATION = 2 LOG NETWORK ANALYZER R L 1 2 GN R CHANNEL-TO-CHANNEL CROTALK = 2 LOG Test Circuit 6. Off Isolation Test Circuit 7. Channel-to-Channel Crosstalk.1 F NETWORK ANALYZER V GN R L ERTION LO = 2 LOG WITH WITCH WITHOUT WITCH Test Circuit 8. Bandwidth REV. B 7

8 AG719 APPLICATION FORMATION The AG719 belongs to Analog evices new family of CMO switches. This series of general-purpose switches has improved switching times, lower on resistance, higher bandwidths, low power consumption, and low leakage currents. AG719 upply Voltages Functionality of the AG719 extends from 1.8 V to 5.5 V single supply, which makes it ideal for battery-powered instruments where power efficiency and performance are important design parameters. It is important to note that the supply voltage effects the input signal range, the on resistance, and the switching times of the part. By taking a look at the Typical Performance Characteristics and the pecifications, the effects of the power supplies can be clearly seen. For = 1.8 V operation, R ON is typically 4 Ω over the temperature range. On Response vs. Frequency Figure 1 illustrates the parasitic components that affect the ac performance of CMO switches (the switch is shown surrounded by a box). Additional external capacitances will further degrade some performance. These capacitances affect feedthrough, crosstalk, and system bandwidth. The signal transfer characteristic is dependent on the switch channel capacitance, C. This capacitance creates a frequency zero in the numerator of the transfer function A(s). Because the switch on resistance is small, this zero usually occurs at high frequencies. The bandwidth is a function of the switch output capacitance combined with C and the load capacitance. The frequency pole corresponding to these capacitances appears in the denominator of A(s). The dominant effect of the output capacitance, C, causes the pole breakpoint frequency to occur first. Therefore, in order to maximize bandwidth, a switch must have a low input and output capacitance and low on resistance. The On Response vs. Frequency plot for the AG719 can be seen in TPC 9. Off Isolation Off isolation is a measure of the input signal coupled through an off switch to the switch output. The capacitance, C, couples the input signal to the output load when the switch is off, as shown in Figure 2. C V C CLOA RLOA C V R ON C CLOA RLOA Figure 1. witch Represented by Equivalent Parasitic Components The transfer function that describes the equivalent diagram of the switch (Figure 1) is of the form A(s) shown below: where: As () = R R = R R + R T LOA LOA ON C = C + C + C T LOA T ( ) sr ( ON C ) + 1 sr ( T RON CT) + 1 Figure 2. Off Isolation Is Affected by External Load Resistance and Capacitance The larger the value of C, the larger the values of feedthrough that will be produced. TPC 7 illustrates the drop in off isolation as a function of frequency. From dc to roughly 2 khz, the switch shows better than 95 db isolation. Up to frequencies of 1 MHz, the off isolation remains better than 67 db. As the frequency increases, more and more of the input signal is coupled through to the output. Off isolation can be maximized by choosing a switch with the smallest C possible. The values of load resistance and capacitance also affect off isolation, since they contribute to the coefficients of the poles and zeros in the transfer function of the switch when open. sr ( LOA C ) As () = sr ( LOA )( CLOA + C + C ) REV. B

9 AG719 OUTLE IMENION 8-Lead mall Outline Package [MOP] (RM-8) imensions shown in millimeters 3. BC 3. BC BC P 1.65 BC MAX EATG PLANE COMPLIANT TO JEEC TANAR MO-187AA Lead Plastic urface Mount Package [OT-23] (RT-6) imensions shown in millimeters 2.9 BC BC 2.8 BC P BC.95 BC.15 MAX MAX EATG PLANE COMPLIANT TO JEEC TANAR MO-178AB REV. B 9

10 AG719 Revision History Location Page 7/2 ata heet changed from REV. A to REV. B. Changes to Product Name...1 Changes to FEATURE...1 Additions to PROUCT HIGHLIGHT...1 Changes to PECIFICATION...2 Edits to ABOLUTE MAXIMUM RATG...4 Changes to TERMOLOGY...4 Edits to ORERG GUIE...4 Added new TPCs 4 and Replaced TPC TET CIRCUITs 6, 7, and 8 replaced...7 Updated RM-8 and RT-6 package outlines REV. B

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