CMOS Low Voltage 2 SPST Switches ADG701/ADG702 FUNCTIONAL BLOCK DIAGRAM 1.8 V to 5.5 V single supply 2 (typ) on resistance Low on-resistance flatness -3 dB bandwidth > 200 MHz Rail-to-rail operation Fast switching times: tON 18 ns tOFF 12 ns Typical power consumption < 0.01 W TTL/CMOS compatible APPLICATIONS Battery powered systems Communication systems Sample hold systems Audio signal routing Video switching Mechanical reed relay replacement GENERAL DESCRIPTION The ADG701/ADG702 are monolithic CMOS SPST switches. These switches are designed on an advanced submicron process that provides low power dissipation yet high switching speed, low on resistance, and low leakage currents. In addition, -3 dB bandwidths of greater than 200 MHz can be achieved. The ADG701/ADG702 can operate from a single 1.8 V to 5.5 V supply, making it ideal for use in battery-powered instruments and with the new generation of DACs and ADCs from Analog Devices. ADG701 S ADG702 D S IN SWITCHES SHOWN FOR A LOGIC 1 INPUT D IN 00039-001 FEATURES Figure 1. PRODUCT HIGHLIGHTS 1. 1.8 V to 5.5 V single-supply operation. The ADG701/ ADG702 offer high performance, including low on resistance and fast switching times, and are fully specified and guaranteed with 3 V and 5 V supply rails. 2. Very low RON (3 max at 5 V, 5 max at 3 V). At 1.8 V operation, RON is typically 40 over the temperature range. 3. On resistance flatness RFLAT(ON) (1 max). 4. -3 dB bandwidth > 200 MHz. 5. Low power dissipation. CMOS construction ensures low power dissipation. 6. Fast tON/tOFF. 7. Tiny 5-lead SOT-23, 6-lead SOT-23, and 8-lead MSOP packages. Figure 1 shows that with a logic input of 1, the switch of the ADG701 is closed, while that of the ADG702 is open. Each switch conducts equally well in both directions when on. The ADG701/ADG702 are available in 5-lead SOT-23, 6-lead SOT-23, and 8-lead MSOP packages. Rev. B 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 that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.326.8703 (c) 2004 Analog Devices, Inc. All rights reserved. ADG701/ADG702 TABLE OF CONTENTS Specifications..................................................................................... 3 Applications Information .................................................................9 Absolute Maximum Ratings............................................................ 5 ADG701/ADG702 Supply Voltages ............................................9 ESD Caution.................................................................................. 5 On Response vs. Frequency .........................................................9 Pin Configurations and Function Descriptions ........................... 6 Off Isolation ...................................................................................9 Typical Performance Characteristics ............................................. 7 Outline Dimensions ....................................................................... 10 Test Circuits....................................................................................... 8 Ordering Guide .......................................................................... 11 REVISION HISTORY 6/04--Data Sheet Changed from Rev. A to Rev. B Updated Format.................................................................. Universal Added 5-Lead SOT-23 Package ........................................ Universal Updated Outline Dimensions ........................................................10 Changes to Ordering Guide ...........................................................11 8/98--Data Sheet Changed from Rev. 0 to Rev. A Rev. B | Page 2 of 12 ADG701/ADG702 SPECIFICATIONS VDD = 5 V 10%, GND = 0 V. Temperature range for B version is -40C to +85C, unless otherwise noted. Table 1. Parameter ANALOG SWITCH Analog Signal Range On Resistance (RON) On-Resistance Flatness (RFLAT(ON)) +25C B Version -40C to +85C 0 V to VDD 2 3 0.5 4 1.0 LEAKAGE CURRENTS Source OFF Leakage, IS (OFF) Drain OFF Leakage, ID (OFF) Channel ON Leakage, ID, IS (ON) DIGITAL INPUTS Input High Voltage, VINH Input Low Voltage, VINL Input Current IINL or IINH DYNAMIC CHARACTERISTICS1 tON 0.01 0.25 0.01 0.25 0.01 0.25 5 -55 -75 200 17 17 38 IDD A typ A max VIN = VINL or VINH 0.1 ns typ ns max ns typ ns max pC typ dB typ dB typ MHz typ pF typ pF typ pF typ RL = 300 , CL = 35 pF VS = 3 V; Figure 14 RL = 300 , CL = 35 pF VS = 3 V; Figure 14 VS = 2 V, RS = 0 , CL = 1 nF; Figure 15 RL = 50 , CL = 5 pF, f = 10 MHz RL = 50 , CL = 5 pF, f = 1 MHz; Figure 16 RL = 50 , CL = 5 pF; Figure 17 VS = 4.5 V/1 V, VD = 1 V/4.5 V; Figure 12 VS = VD = 1 V, or 4.5 V; Figure 13 VDD = 5.5 V Digital inputs = 0 V or 5 V 0.001 1.0 1 VDD = 5.5 V VS = 4.5 V/1 V, VD = 1 V/4.5 V; Figure 12 V min V max 12 Bandwidth -3 dB CS (OFF) CD (OFF) CD, CS (ON) POWER REQUIREMENTS VS = 0 V to VDD, IS = -10 mA 2.4 0.8 0.35 18 Charge Injection Off Isolation VS = 0 V to VDD, IS = -10 mA; Figure 11 0.35 0.35 12 8 V typ max typ max Test Conditions/Comments nA typ nA max nA typ nA max nA typ nA max 0.005 tOFF Unit A typ A max Guaranteed by design, not subject to production test. Rev. B | Page 3 of 12 ADG701/ADG702 VDD = 3 V 10%, GND = 0 V. Temperature range for B version is -40C to +85C, unless otherwise noted. Table 2. Parameter ANALOG SWITCH Analog Signal Range On Resistance (RON) On-Resistance Flatness (RFLAT(ON)) LEAKAGE CURRENTS Source OFF Leakage IS(OFF) Drain OFF Leakage ID(OFF) Channel ON Leakage ID, IS(ON) DIGITAL INPUTS Input High Voltage, VINH Input Low Voltage, VINL Input Current IINL or IINH DYNAMIC CHARACTERISTICS1 tON +25C B Version -40C to +85C 0 V to VDD 3.5 5 1.5 0.01 0.25 0.01 0.25 0.01 0.25 6 V typ max typ Test Conditions/Comments VS = 0 V to VDD, IS = -10 mA; Figure 11 VS = 0 V to VDD, IS = -10 mA VDD = 3.3 V VS = 3 V/1 V, VD = 1 V/3 V; Figure 12 0.35 nA typ nA max nA typ nA max nA typ nA max 2.0 0.4 V min V max A typ A max VIN = VINL or VINH 0.1 RL = 300 , CL = 35 pF VS = 2 V, Figure 14 RL = 300 , CL = 35 pF VS = 2 V, Figure 14 VS = 1.5 V, RS = 0 , CL = 1 nF; Figure 15 0.35 0.35 0.005 14 VS = 3 V/1 V, VD = 1 V/3 V; Figure 12 V = VD = 1 V, or 3 V; Figure 13 tOFF 8 Charge Injection 4 ns typ ns max ns typ ns max pC typ Off Isolation -55 -75 dB typ dB typ RL = 50 , CL = 5 pF, f = 10 MHz RL = 50 , CL = 5 pF, f = 1 MHz; Figure 16 Bandwidth -3 dB 200 MHz typ RL = 50 , CL = 5 pF; Figure 17 17 17 38 pF typ pF typ pF typ 20 13 CS (OFF) CD (OFF) CD, CS (ON) POWER REQUIREMENTS IDD VDD = 3.3 V Digital Inputs = 0 V or 3 V 0.001 A typ A max 1.0 1 Unit Guaranteed by design, not subject to production test. Rev. B | Page 4 of 12 ADG701/ADG702 ABSOLUTE MAXIMUM RATINGS TA = +25C, unless otherwise noted. Table 3. Parameter VDD to GND Analog, Digital Inputs1 Continuous Current, S or D Peak Current, S or D Operating Temperature Range Industrial (B Version) Storage Temperature Range Junction Temperature MSOP Package, Power Dissipation JA Thermal Impedance JC Thermal Impedance SOT-23 Package, Power Dissipation JA Thermal Impedance JC Thermal Impedance Lead Temperature, Soldering Vapor Phase (60 sec) Infrared (15 sec) ESD 1 Rating -0.3 V to +7 V -0.3 V to VDD +0.3 V or 30 mA, whichever occurs first 30 mA 100 mA, pulsed at 1 ms, 10% duty cycle max Stresses 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. Table 4. Truth Table -40C to +85C -65C to +150C 150C 315 mW 206C/W 44C/W 282 mW 229.6C/W 91.99C/W ADG701 In 0 1 ADG702 In 1 0 215C 220C 2 kV Overvoltages at IN, S, or D are clamped by internal diodes. Current should be limited to the maximum ratings given. ESD CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although this product features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. Rev. B | Page 5 of 5 Switch Condition OFF ON ADG701/ADG702 S 7 GND 6 IN TOP VIEW VDD 4 (Not to Scale) 5 NC NC 3 D 1 8 NC = NO CONNECT Figure 2. 8-Lead MSOP S 2 6 ADG701/ ADG702 D 1 VDD 5 NC TOP VIEW GND 3 (Not to Scale) 4 IN NC = NO CONNECT Figure 3. 6-Lead SOT-23 S 2 00039-003 ADG701/ ADG702 00039-002 D 1 NC 2 5 VDD 4 IN ADG701/ ADG702 TOP VIEW GND 3 (Not to Scale) 00039-004 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS Figure 4. 5-Lead SOT-23 Table 5. Pin Descriptions Term VDD GND S D IN RON RFLAT(ON) IS (OFF) ID (OFF) ID, IS (ON) VD (VS) CS (OFF) CD (OFF) CD, CS (ON) tON tOFF Off Isolation Charge Injection Bandwidth On Response On Loss Description Most positive power supply potential. Ground (0 V) Reference. Source Terminal. May be an input or output. Drain Terminal. May be an input or output. Logic Control Input. Ohmic resistance between D and S. Flatness is defined as the difference between the maximum and minimum value of on resistance as measured over the specified analog signal range. Source Leakage Current with the Switch OFF. Drain Leakage Current with the Switch OFF. Channel Leakage Current with the Switch ON. Analog Voltage on Terminals D and S. OFF Switch Source Capacitance. OFF Switch Drain Capacitance. ON Switch Capacitance. Delay between applying the digital control input and the output switching on. See Figure 14. Delay between applying the digital control input and the output switching off. A measure of unwanted signal coupling through an OFF switch. A measure of the glitch impulse transferred from the digital input to the analog output during switching. The frequency at which the output is attenuated by -3 dBs. The frequency response of the ON switch. The voltage drop across the ON switch seen in Figure 10 as the number of dBs the signal is from 0 dB at very low frequencies. Rev. B | Page 6 of 12 ADG701/ADG702 TYPICAL PERFORMANCE CHARACTERISTICS 10m 3.5 VDD = 2.7V TA = 25C 1m 3.0 100 2.5 VDD = 4.5V 2.0 1.5 VDD = 5.0V 10 1 100n 0.5 10n 00039-005 1.0 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 VD OR VS - DRAIN OR SOURCE VOLTAGE (V) 00039-008 ISUPPLY (A) VDD = 3.0V RON () VDD = 5V 1n 10 5.0 100 1k 10k 100k FREQUENCY (Hz) 1M 10M Figure 8. Supply Current vs. Input Switching Frequency Figure 5. On Resistance as a Function of VD (VS) Single Supplies -10 3.5 VDD = 3V VDD = 5V, 3V -20 3.0 -30 +85C OFF ISOLATION (dB) 2.5 RON () +25C 2.0 -40C 1.5 1.0 -40 -50 -60 -70 -80 00039-006 0 0 0.5 1.0 1.5 2.0 2.5 VD OR VS - DRAIN OR SOURCE VOLTAGE (V) 00039-009 -90 0.5 -100 -110 10k 3.0 100k 1M 10M FREQUENCY (Hz) 100M Figure 9. Off Isolation vs. Frequency Figure 6. On Resistance as a Function of VD (VS) for Different Temperatures VDD = 3 V 0 3.5 VDD = 5V VDD = 3V 3.0 RON () +85C 2.0 +25C 1.5 -40C 1.0 00039-007 0.5 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 VD OR VS - DRAIN OR SOURCE VOLTAGE (V) -2 -4 -6 10k 5.0 Figure 7. On Resistance as a Function of VD (VS) for Different Temperatures VDD = 5 V Rev. B | Page 7 of 12 00039-010 ON RESPONSE (dB) 2.5 100k 1M 10M FREQUENCY (Hz) Figure 10. On Response vs. Frequency 100M ADG701/ADG702 TEST CIRCUITS IDS V1 D VS VD Figure 11. On Resistance S A D VS ID (ON) A 00039-013 RON = V1/IDS ID (OFF) S A 00039-012 VS IS (OFF) D 00039-011 S VD Figure 12. Off Leakage Figure 13. On Leakage VDD 0.1F VIN ADG701 50% 50% VIN 50% 50% VDD VS VOUT D RL 300 IN ADG702 CL 35pF 90% VOUT 90% GND tON tOFF 00039-014 S Figure 14. Switching Times VDD VDD S VIN D ADG701 ON OFF QINJ = CL x VOUT VOUT VOUT CL 1nF VS IN VIN ADG702 VOUT GND 00039-015 RS Figure 15. Charge Injection VDD VDD 0.1F 0.1F VDD D RL 50 IN VIN GND VS Figure 16. Off Isolation RL 50 VIN GND Figure 17. Bandwidth Rev. B | Page 8 of 12 VOUT D IN 00039-016 VS S 00039-017 S VDD VOUT ADG701/ADG702 APPLICATIONS INFORMATION The ADG701/ADG702 belong to Analog Devices' new family of CMOS switches. This series of general-purpose switches have improved switching times, lower on resistance, higher bandwidth, low power consumption, and low leakage currents. ADG701/ADG702 SUPPLY VOLTAGES Functionality of the ADG701/ADG702 extends from 1.8 V to 5.5 V single supply, making the parts ideal for battery-powered instruments, where power efficiency and performance are important design parameters. It is important to note that the supply voltage affects the input signal range, the on resistance, and the switching times of the part. The effects of the power supplies can be clearly seen in the Typical Performance Characteristics and the Specifications sections. The signal transfer characteristic is dependent on the switch channel capacitance, CDS. 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 CDS 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, CD, causes the pole breakpoint frequency to occur first. In order to maximize bandwidth, a switch must have a low input and output capacitance and low on resistance. The on response versus frequency for the ADG701/ADG702 can be seen in Figure 10. OFF ISOLATION Off isolation is a measure of the input signal coupled through an off switch to the switch output. The capacitance, CDS, couples the input signal to the output load, when the switch is off, as shown in Figure 19. ON RESPONSE VS. FREQUENCY Figure 18 illustrates the parasitic components that affect the ac performance of CMOS switches (a box surrounds the switch). Additional external capacitances further degrade some performance. These capacitances affect feedthrough, crosstalk, and system bandwidth. CDS S VOUT VIN CD CLOAD RLOAD Figure 19. Off Isolation Is Affected by External Load Resistance and Capacitance CDS S D VOUT CD CLOAD RLOAD 00039-018 RON VIN D 00039-019 For VDD = 1.8 V operation, RON is typically 40 over the temperature range. Figure 18. Switch Represented by Equivalent Parasitic Components The transfer function that describes the equivalent diagram of the switch (Figure 18) is of the form (A)s shown below. s(RON C DS ) + 1 A(s) = RT s(RON CT RT ) + 1 Where CT = CLOAD + CD + CDS. The larger the value of CDS, the larger the values of feedthrough produced. Figure 9 illustrates the drop in off isolation as a function of frequency. From dc to roughly 1 MHz, the switch shows better than -75 dB isolation. Up to frequencies of 10 MHz, the off isolation remains better than -55 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 CDS possible. The values of load resistance and capacitance also affect off isolation, as they contribute to the coefficients of the poles and zeros in the transfer function of the switch when open. s(RLOADC DS ) + 1 A(s) = RT s(RLOAD )(CT ) + 1 Rev. B | Page 9 of 12 ADG701/ADG702 OUTLINE DIMENSIONS 3.00 BSC 8 5 4.90 BSC 3.00 BSC 4 PIN 1 0.65 BSC 1.10 MAX 0.15 0.00 0.38 0.22 COPLANARITY 0.10 0.80 0.60 0.40 8 0 0.23 0.08 SEATING PLANE COMPLIANT TO JEDEC STANDARDS MO-187AA Figure 20. 8-Lead Mini Small Outline Package [MSOP] (RM-8) Dimensions shown in millimeters 2.90 BSC 6 5 4 2.80 BSC 1.60 BSC 1 2 3 PIN 1 INDICATOR 0.95 BSC 1.30 1.15 0.90 1.90 BSC 1.45 MAX 0.15 MAX 0.50 0.30 0.22 0.08 SEATING PLANE 10 4 0 0.60 0.45 0.30 COMPLIANT TO JEDEC STANDARDS MO-178AB Figure 21. 6-Lead Plastic Surface Mount Package [SOT-23] (RT-6) Dimensions shown in inches and (millimeters) Rev. B | Page 10 of 12 ADG701/ADG702 2.90 BSC 5 4 2.80 BSC 1.60 BSC 1 2 3 PIN 1 0.95 BSC 1.90 BSC 1.30 1.15 0.90 1.45 MAX 0.15 MAX 0.50 0.30 0.22 0.08 SEATING PLANE 10 5 0 0.60 0.45 0.30 COMPLIANT TO JEDEC STANDARDS MO-178AA Figure 22. 5-Lead Plastic Surface Mount Package [SOT-23] (RJ-5) Dimensions shown in inches and (millimeters) ORDERING GUIDE Model ADG701BRJ-500RL7 ADG701BRJ-REEL ADG701BRJ-REEL7 ADG701BRM ADG701BRM-REEL ADG701BRM-REEL7 ADG701BRT ADG701BRT-REEL ADG701BRT-REEL7 ADG701BRTZ-REEL2 ADG701BRTZ-REEL7 ADG702BRJ-500RL7 ADG702BRJ-REEL ADG702BRJ-REEL7 ADG702BRM ADG702BRM-REEL ADG702BRM-REEL7 ADG702BRT ADG702BRT-REEL ADG702BRT-REEL7 ADG702BRTZ-REEL ADG702BRTZ-REEL7 2 2 2 1 2 Temperature Range -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C Package Descriptions SOT-23 (Plastic Surface Mount) SOT-23 (Plastic Surface Mount) SOT-23 (Plastic Surface Mount) MSOP (Small Outline) MSOP (Small Outline) MSOP (Small Outline) SOT-23 (Plastic Surface Mount) SOT-23 (Plastic Surface Mount) SOT-23 (Plastic Surface Mount) SOT-23 (Plastic Surface Mount) SOT-23 (Plastic Surface Mount) SOT-23 (Plastic Surface Mount) SOT-23 (Plastic Surface Mount) SOT-23 (Plastic Surface Mount) MSOP (Small Outline) MSOP (Small Outline) MSOP (Small Outline) SOT-23 (Plastic Surface Mount) SOT-23 (Plastic Surface Mount) SOT-23 (Plastic Surface Mount) SOT-23 (Plastic Surface Mount) SOT-23 (Plastic Surface Mount) Brand = Due to package size limitations, these three characters represent the part number. Z = Pb-free part. Rev. B | Page 11 of 12 Package Options RJ-5 RJ-5 RJ-5 RM-8 RM-8 RM-8 RT-6 RT-6 RT-6 RT-6 RT-6 RJ-5 RJ-5 RJ-5 RM-8 RM-8 RM-8 RT-6 RT-6 RT-6 RT-6 RT-6 Brand1 S3B S3B S3B S3B S3B S3B S3B S3B S3B S3B S3B S4B S4B S4B S4B S4B S4B S4B S4B S4B S4B S4B ADG701/ADG702 NOTES (c) 2004 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. C00039-0-6/04(B) Rev. B | Page 12 of 12