ADVANCED LINEAR DEVICES, INC. ALD4201/ALD4202M CMOS LOW VOLTAGE, LOW CHARGE INJECTION QUAD SPST ANALOG SWITCHES GENERAL DESCRIPTION FEATURES The ALD4201/ALD4202M are quad SPSTCMOS analog switches specifically developed for 3 to 12 volt applications where low charge injection and low leakage currents are important analog switch operating characteristics. The main features are precision matching, charge compensation circuitry, fast switching, low on-resistance and micropower consumption. The ALD4201 operates in break-before-make switching whereas the ALD4202M operates in make-before-break switching. • • • • • • • • • • The ALD4201/ALD4202M are designed for precision applications such as charge amplifiers, sample and hold amplifiers, data converter switches, and programmable gain amplifiers. These switches are also excellent for general purpose switching applications for micropower battery operated systems. APPLICATIONS INFORMATION The ALD4201/ALD4202M are designed to operate with standard single or dual power supplies of +3V to 10V or ±1.5V to ±5V. Functionality extends down to +2V or ±1V power supply, making it suitable for lithium battery or rechargeable battery operated systems where power efficiency and performance are important design parameters. These switches feature nA quiescent current and interface directly to CMOS logic levels from microprocessor or logic interface circuits. Built- in level shifters at the input stage provide for dual supply analog signal switching. On the board level, low charge injection and fast operation can be obtained by using short leads, minimizing input and output capacitances, and by adequate bypass capacitors placed on the board at the supply nodes. For more information, see Application Note AN4200. The ALD4201/4202M are manufactured with Advanced Linear Devices' enhanced ACMOS silicon gate CMOS process, and are also part of the linear elements in Advanced Linear Devices' "Function-Specific" ASIC. ORDERING INFORMATION 3V, 5V & 10V supply operation ±1.5V, ±2.5V & ±5V supply operation 0.1µW power dissipation 1pC charge injection Rail-to-rail signal range Low on-resistance pA leakage current 4201 break-before-make switching 4202M make-before-break switching Built-in dual supply level translator BENEFITS • • • • • Fast effective signal throughput Low switching transients Low signal loss Essentially no DC power consumption Full analog signal range over power supply rail • Flexible power supply range for battery operated systems APPLICATIONS • • • • • • • • • • • Low level signal conditioning circuits Portable battery operated instruments Computer peripherals PCMCIA Fast sample and hold Analog signal multiplexer Programmable gain amplifiers Switched capacitor circuits Micropower based systems Video/audio switches Feedback control systems PIN CONFIGURATION / BLOCK DIAGRAM Operating Temperature Range -55°C to +125°C 0°C to +70°C 0°C to +70°C 16-Pin CERDIP Package 16-Pin Plastic Dip Package 16-Pin SOIC Package ALD4201 DC ALD4202M DC ALD4201 PC ALD4202M PC ALD4201 SC ALD4202M SC IN1 1 16 IN2 D1 2 15 D2 S1 3 14 S2 V- 4 13 V+ GND 5 12 NC S4 6 11 S3 D4 7 10 D3 IN4 8 9 IN3 LOGIC TABLE Switch State Input Logic ALD4201 0 1 On Off ALD4202M Off On DC, PC, SC PACKAGE * Contact factory for industrial temperature range. © 1998 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, California 94089 -1706 Tel: (408) 747-1155 Fax: (408) 747-1286 http://www.aldinc.com ABSOLUTE MAXIMUM RATINGS Supply voltage, V+ referenced to VGND Terminal voltage range (any terminal) Note 1 Power dissipation Operating temperature range PC, SC package DC package Storage temperature range Lead temperature, 10 seconds DC current (any terminal) -0.3V to +13.2V -0.3V to +13.2V (V- -0.3)V to (V+ +0.3)V 600 mW 0°C to +70°C -55°C to +125°C -65°C to +150°C +260°C 10mA POWER SUPPLY RANGE 4201/4202M (PC,SC) Parameter Symbol Min Supply Voltage VSUPPLY ±1.5 3.0 Typ 4201/4202M (DC) Max ±6.0 12.0 Min Typ Max ±1.5 3.0 ±6.0 12.0 Unit V V Dual Supply Single Supply DC ELECTRICAL CHARACTERISTICS TA = 25 °C V+ = +5.0V, V- = -5.0V GND = 0.0V unless otherwise specified 4201/4202M (PC,SC) Parameter Symbol Analog Signal Range VA On - Resistance RON Change of On-Resistance from -VS to +VS ∆RON Change of On-Resistance with Temperature ∆RON/∆T Min -5.0 Min Typ Max -5.0 135 180 V 90 135 Ω 140 210 16 0.43 0.43 2 2 100 500 50 50 ID(OFF) 100 500 50 50 ID(ON) 100 500 50 % 100 100 100 4000 4.0 VA = 0V IA = 1mA 0°C to +70°C -55°C to +125°C %/°C 4000 Channel On Leakage Current Test Conditions % 4000 Drain Off Leakage Current Unit 5.0 16 50 IS(OFF) 4201/4202M (DC) Max 5.0 90 120 RON Match Between Switches Source Off Leakage Current Typ pA pA pA VS = +/-4.0V, VD = -/+4.0V 0°C to +70°C -55°C to +125°C pA pA pA VD = +/-4.0V, VS = -/+4.0V 0°C to +70°C -55°C to +125°C pA pA pA 0°C to +70°C -55°C to +125°C 4.0 Logic "1" Input High Voltage VIH Input Low Voltage VIL 0.8 0.8 V Logic "0" Input High or Input Low Current IIH IIL 10 10 nA ±1.5 ≤ VSUPPLY ≤ ±5.0V Supply Current ISUPPLY 1 µA ALD4201/ALD4202M 0.01 1 Advanced Linear Devices 0.01 2 AC ELECTRICAL CHARACTERISTICS TA = 25 °C V+ = +5.0V, V- = -5.0V, GND = 0.0V unless otherwise specified Parameter Symbol 4201/4202M (PC) Min Typ Max 4201/4202M (DC) Min Typ Max 4201/4202M (SC) Min Typ Max Unit Test Conditions Turn On Delay time tON 150 60 240 110 150 60 240 110 150 60 240 110 ns ns 4201 (Note 2) 4202M Turn Off Delay time tOFF 60 100 130 180 60 100 130 180 60 100 130 180 ns ns 4201 (Note 2) 4202M Break-Before-Make tBD 20 90 20 90 20 90 ns 4201 (Note 3) tMD 15 40 15 40 15 40 ns 4202M (Note 3) pC pC 4201 (Note 3) (Note 4) 4202M Delay Time Make-Before-Break Delay Time Charge Injection 2 1 QINJ 5 2.5 2 1 5 2.5 1 0.7 2.5 2.0 Off Isolation 75 75 75 dB At f = 100KHz, (Note 5) Crosstalk 90 90 90 dB At f = 100KHz, (Note 6) 0.05 0.01 0.05 0.01 0.05 0.01 % RL = 10K R L = 100K Total Harmonic Distortion THD Source/Drain Off Capacitance CS(OFF) CD(OFF) 3.0 3.0 3.0 pF Channel On Capacitance CDS(ON) 5.7 5.7 5.7 pF Pin to Pin Capacitance CPP 0.5 0.6 0.25 pF DC ELECTRICAL CHARACTERISTICS TA = 25 °C V+= +5.0V, V- = GND = 0.0V unless otherwise specified ALD4201/4202M (PC,SC) Parameter Symbol Analog Signal Range VA On - Resistance RON Change of On-Resistance from -VS to +V S ∆RON Change of On-Resistance with Temperature ∆RON/∆T Min 0.0 VIH Input Low Voltage VIL Max +5.0 195 240 RON Match Between Switches Input High Voltage Typ ALD4201/4202M (DC) Min Typ Max 0.0 280 350 V 195 280 Ω 270 390 20 20 0.43 0.43 2 2 4.0 Test Conditions VA = +2.5V IA = 1mA 0°C to +70°C -55°C to +125°C % %/°C % 4.0 0.8 Unit +5.0 V 0.8 V Notes: 1. Voltage on any terminal must be less than (V+) + 0.3V and greater than (V-) - 0.3V, at all times including before power is applied and V+ = V- = 0.0V. Vsupply power supply needs to be sequenced on first on power turn-on and sequenced off last during power turn-off. 2. See Switching Time Test Circuit. 3. Guaranteed by design . 4. See Charge Injection Test Circuit 5. See Off Isolation Test Circuit 6. See Crosstalk Test Circuit ALD4201/ALD4202M Advanced Linear Devices 3 DC ELECTRICAL CHARACTERISTICS TA = 25 °C V+ = +3.0V, V- = GND = 0.0V unless otherwise specified 4201/4202M (PC,SC) Parameter Symbol Analog Signal Range VA On - Resistance RON Change of On-Resistance Min Typ 4201/4202M (DC) Max 0.0 Min 3.0 500 620 ∆RON Typ Max 0.0 700 880 Unit 3.0 V 500 700 Ω 680 1000 43 43 0.27 0.27 2 2 Test Conditions VA = 1.5V IA = 1mA 0°C to +70°C -55°C to +125°C % from -VS to +VS Change of On-Resistance ∆RON/∆T %/°C with Temperature RON Match Between Switches Input High Voltage VIH Input Low Voltage VIL 2.4 % 2.4 V 0.8 0.8 V TYPICAL PERFORMANCE CHARACTERISTICS POWER DISSIPATION AS A FUNCTION OF FREQUENCY ON RESISTANCE AS A FUNCTION OF SIGNAL VOLTAGE 240 0.8 ON - RESISTANCE (Ω) POWER DISSIPATION (mW) 1.0 VSUPPLY = 5V 0.6 0.4 0.2 0 200 VSUPPLY = 10V 160 125°C 85°C 25°C -25°C -55°C 120 80 40 0 1 10 100 1000 10000 0 2 FREQUENCY (KHz) 6 10 8 SIGNAL VOLTAGE (V) ON RESISTANCE AS A FUNCTION OF SIGNAL VOLTAGE ON RESISTANCE AS A FUNCTION OF SIGNAL VOLTAGE 850 500 VSUPPLY = 5V 400 ON - RESISTANCE (Ω) ON - RESISTANCE (Ω) 4 300 125°C 85°C 25°C - 25°C - 55°C 200 100 0 VSUPPLY = 3V 700 550 125°C 400 85°C 25°C - 25°C - 55°C 250 100 0 1 2 3 4 5 0 1.2 1.8 2.4 3.0 SIGNAL VOLTAGE (V) SIGNAL VOLTAGE (V) ALD4201/ALD4202M 0.6 Advanced Linear Devices 4 TYPICAL PERFORMANCE CHARACTERISTICS SUPPLY CURRENT AS A FUNCTION OF INPUT VOLTAGE SUPPLY CURRENT AS A FUNCTION OF INPUT VOLTAGE 100 VSUPPLY = 10V 1.6 SUPPLY CURRENT (mA) SUPPLY CURRENT (µA) 2.0 1.2 0.8 0.4 0 VSUPPLY = 5V 80 60 40 20 0 0 6 4 2 10 8 0 2 1 INPUT VOLTAGE (V) TOTAL HARMONIC DISTORTION(%) SUPPLY CURRENT (µA) 10 VSUPPLY = 3V 6 4 2 0 0.6 0 1.2 TOTAL HARMONIC DISTORTION AS A FUNCTION OF FREQUENCY 100 10 VSUPPLY = 5V VS = 0.355 VRMS RL = 10K 1 0.1 0.01 RL = 10K 0.001 3.0 2.4 1.8 1.0 0.1 INPUT VOLTAGE (V) 10 100 FREQUENCY (KHz) SWITCH DELAY TIME AS A FUNCTION OF SUPPLY VOLTAGE SWITCH DELAY TIME AS A FUNCTION OF SUPPLY VOLTAGE 500 500 400 SWITCH DELAY TIME (ns) SWITCH DELAY TIME (ns) 5 4 INPUT VOLTAGE (V) SUPPLY CURRENT AS A FUNCTION OF INPUT VOLTAGE 8 3 ALD4201 300 200 TURN ON DELAY TIME 100 TURN OFF DELAY TIME 0 400 ALD4202M 300 200 TURN OFF DELAY TIME 100 TURN ON DELAY TIME 0 3 4 5 6 7 8 9 10 3 SUPPLY VOLTAGE (V) ALD4201/ALD4202M 4 5 6 7 8 9 10 SUPPLY VOLTAGE (V) Advanced Linear Devices 5 TEST CIRCUITS SWITCHING TIME TEST CIRCUIT +5V -5V +5V Vi = 1Vrms 100KHz V- V+ S1 -5V V- V+ D1 D1 S1 VS = 3V CROSSTALK TEST CIRCUIT VO IN1 D2 S2 CL = 15pF GND CL = 35pF GND Logic Input 100KHz 50Ω VO RL = 1KΩ CL = 15pF RL = 1KΩ RL = 1KΩ 4.5V 0V CCRR = 20 log [ VO/Vi ] tr = tf ≤ 20ns 50% 50% Logic Input VO TOTAL HARMONIC DISTORTION TEST CIRCUIT 10% 90% +5V ton / toff Vi = 1Vpp 100KHz toff / ton S1 50Ω -5V V- V+ D1 RL = 1KΩ IN1 VO CL = 15pF GND CHARGE INJECTION TEST CIRCUIT -5V +5V OFF ISOLATION TEST CIRCUIT V+ S1 VD1 IN1 GND VO CL = 1000pF +5V 4.5V 0.5V Vi = 1Vrms 100KHz Logic Input 100KHz 50Ω S1 -5V V+ V- D1 RL = 1KΩ IN1 VO CL = 15pF GND Logic Input VO ∆VO ALD4201/ALD4202M ∆Q = CL∆VO Advanced Linear Devices 6