a FEATURES 44 V Supply Maximum Ratings VSS to VDD Analog Signal Range Low On Resistance (< 70 Ω) Low ∆RON (9 Ω max) Low RON Match (3 Ω max) Low Power Dissipation Fast Switching Times tON < 110 ns tOFF < 60 ns Low Leakage Currents ( 3 nA max) Low Charge Injection (6 pC max) Break-Before-Make Switching Action Latch-Up Proof Plug-In Upgrade for DG201A/ADG201A, DG202A/ADG202A, DG211/ADG211A Plug in Replacement for DG441/DG442/DG444 APPLICATIONS Audio and Video Switching Automatic Test Equipment Precision Data Acquisition Battery Powered Systems Sample Hold Systems Communication Systems LC2MOS Quad SPST Switches ADG441/ADG442/ADG444 FUNCTIONAL BLOCK DIAGRAMS S1 IN1 S1 IN1 D1 D1 S2 IN2 S2 IN2 ADG441 ADG444 D2 ADG442 S3 IN3 D2 S3 IN3 D3 D3 S4 IN4 S4 IN4 D4 D4 SWITCHES SHOWN FOR A LOGIC "1" INPUT Each switch conducts equally well in both directions when ON and has an input signal range that extends to the power supplies. In the OFF condition, signal levels up to the supplies are blocked. All switches exhibit break-before-make switching action for use in multiplexer applications. Inherent in the design is low charge injection for minimum transients when switching the digital inputs. GENERAL DESCRIPTION The ADG441, ADG442 and ADG444 are monolithic CMOS devices comprising four independently selectable switches. They are designed on an enhanced LC2MOS process that provides low power dissipation yet gives high switching speed and low on resistance. PRODUCT HIGHLIGHTS The on resistance profile is very flat over the full analog input range ensuring good linearity and low distortion when switching audio signals. High switching speed also makes the parts suitable for video signal switching. CMOS construction ensures ultralow power dissipation making the parts ideally suited for portable and battery powered instruments. 2. Low Power Dissipation The ADG441, ADG442 and ADG444 contain four independent SPST switches. Each switch of the ADG441 and ADG444 turns on when a logic low is applied to the appropriate control input. The ADG442 switches are turned on with a logic high on the appropriate control input. The ADG441 and ADG444 switches differ in that the ADG444 requires a 5 V logic power supply which is applied to the VL pin. The ADG441 and ADG442 do not have a VL pin, the logic power supply being generated internally by an on-chip voltage generator. 1. Extended Signal Range The ADG441/ADG442/ADG444 are fabricated on an enhanced LC2MOS, trench-isolated process, giving an increased signal range that extends to the supply rails. 3. Low RON 4. Trench Isolation Guards Against Latch Up A dielectric trench separates the P and N channel transistors thereby preventing latch up even under severe overvoltage conditions. 5. Break-Before-Make Switching This prevents channel shorting when the switches are configured as a multiplexer. 6. Single Supply Operation For applications where the analog signal is unipolar, the ADG441/ADG442/ADG444 can be operated from a single rail power supply. The parts are fully specified with a single +12 V power supply. REV. 0 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. One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A. Tel: 617/329-4700 Fax: 617/326-8703 ADG441/ADG442/ADG444–SPECIFICATIONS1 Dual Supply (V DD = +15 V ± 10%, VSS = –15 V ± 10%, VL = +5 V ± 10% (ADG444), GND = 0 V, unless otherwise noted) Parameter ANALOG SWITCH Analog Signal Range RON ∆RON B Version –40°C to +25°C +85°C VSS to VDD 40 70 RON Match LEAKAGE CURRENTS Source OFF Leakage IS (OFF) Drain OFF Leakage ID (OFF) Channel ON Leakage ID, IS (ON) ± 0.01 ± 0.5 ± 0.01 ± 0.5 ± 0.08 ± 0.5 DIGITAL INPUTS Input High Voltage, VINH Input Low Voltage, VINL Input Current IINL or IINH DYNAMIC CHARACTERISTICS2 tON tOFF tOPEN Charge Injection T Version –55°C to +25°C +125°C 85 110 45 60 30 1 6 VSS to VDD 40 70 85 4 9 1 3 ± 0.01 ± 0.5 ± 0.01 ± 0.5 ± 0.08 ± 0.5 85 4 9 1 3 Units V Ω typ Ω max Ω typ Ω max Ω typ Ω max 2.4 0.8 V min V max ± 0.00001 ± 0.5 ± 0.00001 ± 0.5 µA typ µA max VIN = VINL or VINH ns typ ns max ns typ ns max ns typ pC typ pC max RL = 1 kΩ, CL = 35 pF; VS = ± 10 V; Test Circuit 4 RL = 1 kΩ, CL = 35 pF; VS = ± 10 V; Test Circuit 4 RL = 1 kΩ, CL = 35 pF; VS = 0 V, RS = 0 Ω, CL= 1 nF; VDD = +15 V, VSS = –15 V; Test Circuit 5 RL = 50 Ω, CL = 5 pF; f = 1 MHz; Test Circuit 6 RL = 50 Ω, CL = 5 pF; f = 1 MHz; Test Circuit 7 f = 1 MHz f = 1 MHz f = 1 MHz ±3 85 110 45 60 30 1 6 170 80 ± 20 170 80 dB typ Channel-to-Channel Crosstalk 100 100 dB typ CS (OFF) CD (OFF) CD, CS (ON) 4 4 16 4 4 16 pF typ pF typ pF typ IL (ADG444 Only) 80 1 VDD = +16.5 V, VSS = –16.5 V VD = ± 15.5 V, VS = 715.5 V; Test Circuit 2 VD = ± 15.5 V, VS = 715.5 V; Test Circuit 2 VS = VD = ± 15.5 V; Test Circuit 3 2.4 0.8 ±3 ± 20 60 ISS VD = 0 V, IS = –10 mA ± 40 ±3 60 0.001 1 0.0001 1 0.001 VD = ± 8.5 V, IS = –10 mA VDD = +13.5 V, VSS = –13.5 V –8.5 V ≤ VD ≤ +8.5 V nA typ nA max nA typ nA max nA typ nA max OFF Isolation POWER REQUIREMENTS IDD ADG441/ADG442 ADG444 Test Conditions/Comments 80 0.001 1 0.0001 1 0.001 2.5 2.5 2.5 1 2.5 2.5 2.5 µA max µA typ µA max µA typ µA max µA typ µA max VDD = +16.5 V, VSS = –16.5 V Digital Inputs = 0 V or 5 V VL = +5.5 V NOTES 1 Temperature ranges are as follows: B Versions: –40°C to +85°C; T Versions: –55°C to +125°C. 2 Guaranteed by design, not subject to production test. Specifications subject to change without notice. –2– REV. 0 ADG441/ADG442/ADG444 Single Supply (V DD = +12 V ± 10%, VSS = 0 V, VL = +5 V ± 10% (ADG444), GND = 0 V, unless otherwise noted) B Version –40°C to +25°C +85°C Parameter ANALOG SWITCH Analog Signal Range RON T Version –55°C to +25°C +125°C 0 to VDD 0 to VDD 70 110 ∆RON RON Match LEAKAGE CURRENT Source OFF Leakage IS (OFF) Drain OFF Leakage ID (OFF) Channel ON Leakage ID, IS (ON) ± 0.01 ± 0.5 ± 0.01 ± 0.5 ± 0.08 ± 0.5 DIGITAL INPUTS Input High Voltage, VINH Input Low Voltage, VINL Input Current IINL or IINH DYNAMIC CHARACTERISTICS2 tON tOFF tOPEN Charge Injection 105 150 40 60 50 2 6 130 4 9 1 3 70 110 ± 0.01 ± 0.5 ± 0.01 ± 0.5 ± 0.08 ± 0.5 130 4 9 1 3 Units V Ω typ Ω max Ω typ Ω max Ω typ Ω max VDD = +13.2 V VD = 12.2 V/1 V, VS = 1 V/12.2 V; Test Circuit 2 VD = 12.2 V/1 V, VS = 1 V/12.2 V; Test Circuit 2 VS = VD = 12.2 V/1 V; Test Circuit 3 2.4 0.8 2.4 0.8 V min V max ± 0.00001 ± 0.5 ± 0.00001 ± 0.5 µA typ µA max VIN = VINL or VINH ns typ ns max ns typ ns max ns typ pC typ pC max RL = 1 kΩ, CL = 35 pF; VS = +8 V; Test Circuit 4 RL = 1 kΩ, CL = 35 pF; VS = +8 V; Test Circuit 4 RL = 1 kΩ, CL = 35 pF; VS = 6 V, RS = 0 Ω, CL = 1 nF; VDD = +12 V, VSS = 0 V; Test Circuit 5 RL = 50 Ω, CL = 5 pF, f = 1 MHz; Test Circuit 6 RL = 50 Ω, CL = 5 pF, f = 1 MHz; Test Circuit 7 f = 1 MHz f = 1 MHz f = 1 MHz ±3 ±3 220 100 105 150 40 60 50 2 6 ± 20 ± 20 220 100 60 dB typ Channel-to-Channel Crosstalk 100 100 dB typ CS (OFF) CD (OFF) CD, CS (ON) 7 10 16 7 10 16 pF typ pF typ pF typ 80 IL (ADG444 Only) VD = 6 V, IS = –10 mA ± 40 ±3 60 0.001 1 0.001 1 VD = +3 V, +8 V, IS = –10 mA; VDD = +10.8 V +3 V ≤ VD ≤ +8 V nA typ nA max nA typ nA max nA typ nA max OFF Isolation POWER REQUIREMENTS IDD ADG441/ADG442 ADG444 Test Conditions/Comments 2.5 2.5 80 0.001 1 0.001 1 2.5 2.5 NOTES 1 Temperature ranges are as follows: B Versions: –40°C to +85°C; T Versions: –55°C to +125°C. 2 Guaranteed by design, not subject to production test. Specifications subject to change without notice. Table I. Truth Table µA max µA typ µA max µA typ µA max VDD = +13.2 V Digital Inputs = 0 V or 5 V VL = +5.5 V ORDERING GUIDE Model1 Temperature Range Package Option2 ADG441/ADG444 IN ADG442 IN Switch Condition ADG441BN ADG441BR ADG441TQ –40°C to +85°C –40°C to +85°C –55°C to +125°C N-16 R-16A Q-16 0 1 1 0 ON OFF ADG442BN ADG442BR –40°C to +85°C –40°C to +85°C N-16 R-16A ADG444BN ADG444BR –40°C to +85°C –40°C to +85°C N-16 R-16A NOTES 1 To order MIL-STD-883, Class B processed parts, add /883B to T grade part numbers. 2 N = Plastic DIP, R = 0.15" Small Outline IC (SOIC), Q = Cerdip. REV. 0 –3– ADG441/ADG442/ADG444 ABSOLUTE MAXIMUM RATINGS 1 TERMINOLOGY (TA = +25°C unless otherwise noted) VDD VSS VDD to VSS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+44 V VDD to GND . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +25 V VSS to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.3 V to –25 V VL to GND . . . . . . . . . . . . . . . . . . . . . . –0.3 V to VDD + 0.3 V Analog, Digital Inputs2 . . . . . . . . . . . . VSS – 2 V to VDD + 2 V or 30 mA, Whichever Occurs First Continuous Current, S or D . . . . . . . . . . . . . . . . . . . . . 30 mA Peak Current, S or D . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mA (Pulsed at 1 ms, 10% Duty Cycle Max) Operating Temperature Range Industrial (B Version) . . . . . . . . . . . . . . . . . . –40°C to +85°C Extended (T Version) . . . . . . . . . . . . . . . . –55°C to +125°C Storage Temperature Range . . . . . . . . . . . . . –65°C to +150°C Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . +150°C Cerdip Package, Power Dissipation . . . . . . . . . . . . . . . 900 mW θJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . . . . . 76°C/W Lead Temperature, Soldering (10 sec) . . . . . . . . . . . . . +300°C Plastic Package, Power Dissipation . . . . . . . . . . . . . . . 470 mW θJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . . . . 177°C/W Lead Temperature, Soldering (10 sec) . . . . . . . . . . . . . +260°C SOIC Package, Power Dissipation . . . . . . . . . . . . . . . . 600 mW θJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . . . . . 77°C/W Lead Temperature, Soldering Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . +215°C Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . +220°C VL GND S D IN RON RON Match IS (OFF) ID (OFF) ID, IS (ON) VD (VS) CS (OFF) CD (OFF) CD, CS (ON) tON tOFF tOPEN NOTES Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and 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 IN, S or D will be clamped by internal diodes. Current should be limited to the maximum ratings given. 1 Crosstalk Off Isolation Charge Injection Most Positive Power Supply Potential. Most Negative Power Supply Potential in dual supplies. In single supply applications, it may be connected to ground. Logic Power Supply (+5 V). 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. Difference between the RON of any two channels. 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, S. “OFF” Switch Source Capacitance. “OFF” Switch Drain Capacitance. “ON” Switch Capacitance. Delay between applying the digital control input and the output switching on. Delay between applying the digital control input and the output switching off. Break-Before-Make Delay when switches are configured as a multiplexer. A measure of unwanted signal which is coupled through from one channel to another as a result of parasitic capacitance. 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. 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 these devices feature 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. ADG441/ADG442 PIN CONFIGURATION (DIP/SOIC) WARNING! ESD SENSITIVE DEVICE ADG444 PIN CONFIGURATION (DIP/SOIC) IN1 1 16 IN2 IN1 1 16 IN2 D1 2 15 D2 D1 2 15 D2 S1 3 14 S2 S1 3 VSS 4 VSS 4 GND 5 GND 5 ADG441 ADG442 13 VDD 14 S2 ADG444 13 VDD S4 6 TOP VIEW 12 NC (Not to Scale) 11 S3 S4 6 TOP VIEW 12 VL (Not to Scale) 11 S3 D4 7 10 D3 D4 7 10 D3 IN4 8 9 IN4 8 9 IN3 IN3 NC = NO CONNECT –4– REV. 0 ADG441/ADG442/ADG444 TRENCH ISOLATION In the ADG441, ADG442 and ADG444, an insulating oxide layer (trench) is placed between the NMOS and the PMOS transistors of each CMOS switch. Parasitic junctions, which occur between the transistors in junction isolated switches, are eliminated, the result being a completely latch-up proof switch. NMOS PMOS P-WELL N-WELL LOCOS In junction isolation, the N and P wells of the PMOS and NMOS transistors form a diode that is reverse-biased under normal operation. However, during overvoltage conditions, this diode becomes forward biased. A silicon-controlled rectifier (SCR) type circuit is formed by the two transistors causing a significant amplification of the current which, in turn, leads to latch up. With trench isolation, this diode is removed, the result being a latch-up proof switch. TRENCH Trench isolation also leads to lower leakage currents. The ADG441, ADG442 and ADG444 have a leakage current of 0.5 nA as compared with a leakage current of several nanoamperes in non-trench isolated switches. Leakage current is an important parameter in sample-and-hold circuits, this current being responsible for the discharge of the holding capacitor with time causing droop. The ADG441/ADG442/ADG444’s low leakage current, along with its fast switching speeds, make it suitable for fast and accurate sample-and-hold circuits. BURIED OXIDE LAYER SUBSTRATE (BACK GATE) Figure 1. Trench Isolation Typical Performance Characteristics 170 100 VDD = +5V VSS = –5V TA = +25°C V DD = +12V V SS = 0V 110 VDD = +12V VSS = –12V RON – Ω RON – Ω TA = +25°C 130 80 60 V DD = +5V V SS = 0V 150 VDD = +10V VSS = –10V V DD = +10V V SS = 0V 90 70 50 40 20 –15 10 –10 –5 0 5 10 0 15 VD (V S) – Volts Figure 2. RON as a Function of VD (VS): Dual Supply REV. 0 VDD = +15V VSS = 0V 30 VDD = +15V VSS = –15V 3 6 9 VD (V S) – Volts 12 15 Figure 3. RON as a Function of VD (VS): Single Supply –5– ADG441/ADG442/ADG444 100 120 VDD = +12V VSS = 0V VDD = +15V VSS = –15V 100 80 R ON – Ω R ON – Ω +125°C +125°C 60 80 +85°C 60 +25°C +85°C 40 40 +25°C 20 –15 20 –10 –5 0 VD (V S) – Volts 5 10 15 0 Figure 4. RON as a Function of VD (VS) for Different Temperatures V DD = +15V V SS = –15V T A = +25° C V DD = +12V V SS = 0V T A = +25°C ID (OFF) ID (ON) IS (OFF) –0.01 –0.02 –15 6 VD (V S) – Volts 8 10 12 0.010 LEAKAGE CURRENT – nA LEAKAGE CURRENT – nA 0.00 4 Figure 7. RON as a Function of VD (VS) for Different Temperatures 0.02 0.01 2 0.005 ID (ON) IS (OFF) 0.000 ID (OFF) –0.005 –0.010 –10 –5 0 5 10 0 15 2 4 VS , V D – Volts 6 8 10 12 VS, VD – Volts Figure 5. Leakage Currents as a Function of VS (VD) Figure 8. Leakage Currents as a Function of VS (VD) 20 120 V DD = +15V V SS = –15V 110 CL = 1nF 10 100 CROSSTALK dB Q – pC 90 0 OFF ISOLATION 70 V DD = +12V V SS = 0V VDD = +15V VSS = –15V 80 –10 60 50 1k 10k 100k FREQUENCY – Hz 1M –20 –15 10M Figure 6. Crosstalk and Off Isolation vs. Frequency –12 –9 –6 –3 0 3 VS – Volts 6 9 12 15 Figure 9. Charge Injection vs. Source Voltage –6– REV. 0 ADG441/ADG442/ADG444 120 160 V IN = +8V VIN = +8V 140 100 120 tON t – ns t – ns tON 80 100 80 60 60 tOFF 40 tOFF 40 ±10 ±12 ±16 ±14 SUPPLY VOLTAGE – Volts 20 ±20 ±18 8 Figure 10. Switching Time vs. Bipolar Supply 10 12 14 16 SUPPLY VOLTAGE – Volts 18 20 Figure 11. Switching Time vs. Single Supply Test Circuits IDS V1 S IS (OFF) D S ID (OFF) D A VS +15V VD +5V 0.1µF VIN VL S VS Test Circuit 3. On Leakage 50% 50% 50% 50% ADG441/ADG444 D VOUT RL 1kΩ IN CL 35pF 3V VIN ADG442 VSS GND 90% VOUT 90% 0.1µF tON –15V Test Circuit 4. Switching Times REV. 0 –7– ID (ON) VD 3V 0.1µF VDD VS Test Circuit 2. Off Leakage Test Circuit 1. On Resistance D A VS RON = V 1 /I DS S A tOFF ADG441/ADG442/ADG444 +15V OUTLINE DIMENSIONS +5V Dimensions shown in inches and (mm). VDD RS VL S Plastic DIP (N-16) VOUT CL 1nF IN 16 0.25 0.31 (6.35) (7.87) PIN 1 VSS GND 9 C1890–18–4/94 VS D 1 8 0.87 (22.1) MAX –15V 0.035 (0.89) 0.18 (4.57) MAX 3V 0.125 (3.18) MIN 0.18 (4.57) VIN 0.011 (0.28) 0.3 (7.62) 0.018 (0.46) VOUT 0.033 (0.84) ∆VOUT SEATING PLANE 0.1 (2.54) BSC Small Outline IC (R-16A) QINJ = C L × ∆VOUT Test Circuit 5. Charge Injection 16 +15V 0.1574 (4.00) 0.1497 (3.80) PIN 1 +5V 0.1µF 0.1µF VDD 1 8 VL S 0.0196 (0.50) × 45 ° 0.0099 (0.25) 0.3937 (10.00) 0.3859 (9.80) D VOUT IN 0.0098 (0.25) 0.0040 (0.10) VSS GND 0° – 8 ° 0.0688 (1.75) 0.0532 (1.35) RL 50Ω VS 0.2440 (6.20) 0.2284 (5.80) 9 0.0500 (1.27) BSC 0.0099 (0.25) 0.0075 (0.19) 0.0192 (0.49) 0.0138 (0.35) 0.0500 (1.27) 0.0160 (0.41) SEATING PLANE VIN 0.1µF Cerdip (Q-16) –15V 9 16 0.310 (7.87) 0.220 (5.59) PIN 1 +15V +5V 0.1µF 1 0.1µF 8 0.840 (21.34) MAX VDD VL S 0.200 (5.08) MAX 50Ω D VIN1 0.022 (0.558) 0.014 (0.356) VIN2 S RL 50Ω 0.150 (3.81) MIN SEATING PLANE VS VOUT 0.060 (1.52) 0.015 (0.38) 0.100 (2.54) BSC 0.320 (8.13) 0.290 (7.37) 0.015 (0.381) 0.008 (0.204) 0.070 (1.78) 0.30 (0.76) PRINTED IN U.S.A. Test Circuit 6. Off Isolation NC VSS GND 0.1µF –15V CHANNEL-TO-CHANNEL CROSSTALK = 20 × LOG VS /V OUT Test Circuit 7. Channel-to-Channel Crosstalk –8– REV. 0 ADG441/ADG442/ADG444 FOR CATALOG ORDERING GUIDE Model1 Temperature Range Package Option2 ADG441BN ADG441BR ADG441TQ ADG442BN ADG442BR ADG444BN ADG444BR –40°C to +85°C –40°C to +85°C –55°C to +125°C –40°C to +85°C –40°C to +85°C –40°C to +85°C –40°C to +85°C N-16 R-16A Q-16 N-16 R-16A N-16 R-16A NOTES 1 To order MIL-STD-883, Class B processed parts, add /883B to T grade part numbers. 2 N = Plastic DIP, R = 0.15" Small Outline IC (SOIC), Q = Cerdip. For outline information see Package Information section. REV. 0 –9–