DG300A/301A/302A Vishay Siliconix CMOS Analog Switches FEATURES BENEFITS APPLICATIONS D D D D D D D Full Rail-to-Rail Analog Signal Range D Low Signal Error D Low Power Dissipation D Low Level Switching Circuits D Programmable Gain Amplifiers D Portable and Battery Powered Systems Analog Signal Range: "15 V Fast Switching—tON: 150 ns Low On-Resistance—rDS(on): 30 Single Supply Operation Latch-up Proof CMOS Compatible DESCRIPTION The DG300A/DG301A/DG302A monolithic CMOS switches feature three switch configuration options (SPST, SPDT, and DPST) for precision applications in communications, instrumentation and process control, where low leakage switching combined with low power consumption are required. In the on condition the switches conduct equally well in both directions (with no offset voltage) and minimize error conditions with their low on-resistance. Featuring low power consumption (3.5 mW typ) these switches are ideal for battery powered applications, without sacrificing switching speed. Designed for break-before-make switching action, these devices are CMOS and quasi TTL compatible. Single supply operation is allowed by connecting the V– rail to 0 V. Designed on the Vishay Siliconix PLUS-40 CMOS process, these switches are latch-up proof, and are designed to block up to 30 V peak-to-peak when off. An epitaxial layer prevents latchup. FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION DG300A DG300A Dual-In-Line Metal Can V+ (Substrate and Case) NC 1 14 V+ D1 2 13 D2 NC 3 12 NC S1 4 11 S2 NC 5 10 NC IN1 GND 6 7 9 Top View D1 9 S1 S2 2 IN1 7 Top View 5 NC Logic Switch 0 OFF 1 ON IN2 6 4 V– TRUTH TABLE 8 3 IN2 8 D2 10 1 V– Logic “0” v 0.8 V Logic “1” w 4 V GND DG301A DG301A Dual-In-Line Metal Can V+ (Substrate and Case) 1 14 V+ 2 13 D2 3 12 NC 4 11 S2 5 10 NC 6 9 NC 7 8 V– D1 9 S1 IN S2 2 8 3 7 6 4 NC 5 GND Top View Document Number: 70044 S–02969—Rev. D, 22-Jan-01 D2 10 1 V– NC TRUTH TABLE Logic SW1 SW2 0 OFF ON 1 ON OFF Logic “0” v 0.8 V Logic “1” w 4 V Top View www.vishay.com 1 DG300A/301A/302A Vishay Siliconix FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION DG302A Dual-In-Line NC 1 14 V+ S3 2 13 S4 D3 3 12 D4 Logic Switch D1 4 11 D2 0 OFF 1 ON S1 5 10 S2 IN1 6 9 IN2 GND 7 8 V– TRUTH TABLE Logic “0” v 0.8 V Logic “1” w 4 V Top View ORDERING INFORMATION Temp Range Package Part Number DG300A 0 to 70_C 14-Pin Plastic DIP DG300ACJ DG300AAK 14-Pin CerDIP –55 to 125_C _ DG300AAK/883 JM38510/11601BCA 14-Pin Sidebraze JM38510/11601BCC DG300AAA/883 10-Pin Metal Can JM38510/11601BIA DG301A 0 to 70_C 14-Pin Plastic DIP DG301ACJ DG301AAK/883 14-Pin CerDIP –55 to 125_C _ 14-Pin Sidebraze JM38510/11602BCA JM38510/11602BCC DG301AAA 10-Pin Metal Can DG301AAA/883 JM38510/11602BIA DG302A 0 to 70_C 14-Pin Plastic DIP DG302ACJ DG302AAK –55 to 125_C _ 14-Pin CerDIP JM38510/11603BCA 14-Pin Sidebraze www.vishay.com 2 DG302AAK/883 JM38510/11603BCC Document Number: 70044 S–02969—Rev. D, 22-Jan-01 DG300A/301A/302A Vishay Siliconix ABSOLUTE MAXIMUM RATINGS Voltages Referenced to V– Power DissipationNO TAG 14-Pin Plastic DIPNO TAG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 470 mW 14-Pin CerDIPNO TAG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 825 mW 10-Pin Metal CanNO TAG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 450 mW V+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 V GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 V Digital InputsNO TAG, VS, VD . . . . . . . . . . . . . . . . . . . (V–) –2 V to (V+) +2V or 30 mA, whichever occurs first Notes: a. Signals on SX, DX, or INX exceeding V+ or V– will be clamped by internal diodes. Limit forward diode current to maximum current ratings. b. All leads welded or soldered to PC Board. c. Derate 6.5 mW/_C above 25_C d. Derate 11 mW/_C above 75_C e. Derate 6 mW/_C above 75_C Current, Any Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA Continuous Current, S or D (Pulsed at 1 ms, 10% duty cycle max) . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mA Storage Temperature (A Suffix) . . . . . . . . . . . . . . . . . . . . –65 to 150_C (C Suffix) . . . . . . . . . . . . . . . . . . . . –65 to 125_C SCHEMATIC DIAGRAM (TYPICAL CHANNEL) V+ S V– VIN Level Shift/ Drive V+ GND D V– FIGURE 1. Document Number: 70044 S–02969—Rev. D, 22-Jan-01 www.vishay.com 3 DG300A/301A/302A Vishay Siliconix SPECIFICATIONSa Test Conditions Unless Specified A Suffix C Suffix –55 to 125_C 0 to 70_C V+ = 15 V, V– = –15 V VIN = 0.8 V or VIN = 4 Vf Tempb VANALOG Full Drain-Source On-Resistance rDS(on) VD = "10 V, IS = –10 mA Room Full 30 Source Off Leakage Current IS(off) Room Hot "0.1 –1 –100 1 100 –5 –100 5 100 Drain Off Leakage Current ID(off) Room Hot "0.1 –1 –100 1 100 –5 –100 5 100 Drain On Leakage Current ID(on) VD = VS = "14 V Room Hot "0.1 –1 –100 1 100 –5 –100 5 100 VIN = 5 V Room Full –0.001 –1 –1 VIN = 15 V Room Full 0.001 VIN = 0 V Room Full –0.001 Room 150 300 Room 130 250 Parameter Symbol Typc Mind Maxd Mind Maxd Unit Analog Switch Analog Signal Rangee VS = "14 " V, VD = #14 # V –15 15 –15 50 75 15 V 50 75 nA Digital Control Input Current with Input Voltage High Input Current with Input Voltage Low IINH IINL –1 1 1 1 –1 –1 A –1 Dynamic Characteristics Turn-On Time tON Turn-Off Time tOFF Break-Before-Make Time Charge Injection tOPEN DG301A Only Figure NO TAG Room 50 Q CL = 1 nF, Rgen = 0 Vgen = 0 V, Figure NO TAG Room 8 Room 14 Room 14 Room 40 VIN = 0 V Room 6 VIN = 15 V Room 7 Room 62 Room 74 Room Full 0.23 Room Full –0.001 Room Full 0.001 Room Full –0.001 Source-Off Capacitance CS(off) Drain-Off Capacitance CD(off) Channel-On Capacitance CD(on) Input Capacitance See Figure NO TAG Cin Off-Isolation OIRR Crosstalk (Channel-to-Channel) XTALK VS, VD = 0 V, f = 1 MHz f = 1 MHz VIN = 0 V, RL = 1 k VS = 1 Vrms, f = 500 kHz ns pC pF dB Power Supplies Positive Supply Current I+ Negative Supply Current I– Positive Supply Current I+ VIN = 4 V (One Input) All Others = 0 V VIN = 0.8 V (All Inputs) Negative Supply Current I– 0.5 1 –10 –100 1 10 100 –10 –100 mA –100 100 A –100 Notes: a. Refer to PROCESS OPTION FLOWCHART. b. Room = 25_C, Full = as determined by the operating temperature suffix. c. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing. d. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet. e. Guaranteed by design, not subject to production test. f. VIN = input voltage to perform proper function. www.vishay.com 4 Document Number: 70044 S–02969—Rev. D, 22-Jan-01 DG300A/301A/302A Vishay Siliconix TYPICAL CHARACTERISTICS (25_C UNLESS NOTED) ) ) 70 r DS(on)– Drain-Source On-Resistance ( TA = 25_C "5 V "8 V 50 "10 V "12 V 30 "15 V "20 V 10 r DS(on)– Drain-Source On-Resistance ( rDS(on) vs. VD and Temperature –25 –15 –5 5 15 60 V+ = 15 V V– = –15 V 50 40 TA = 125_C 30 TA = 25_C 20 TA = –55_C 10 25 –15 –10 –5 0 5 10 15 VD – Drain Voltage (V) VD – Drain Voltage (V) rDS(on) vs. VD and Power Supply Voltage Switching Time and Break-Before-Make Time vs. Positive Supply Voltage 500 V– = 0 V TA = 25_C 100 7.5 V V– = –15 V TA = 25_C VINH = 4 V VINL = 0 V 400 80 t ON, t OFF (ns) r DS(on)– Drain-Source On-Resistance ( ) rDS(on) vs. VD and Power Supply 90 10 V 60 300 tOFF 200 tON 15 V 40 20 V tOPEN 100 DG301/303 Only 20 0 0 5 10 15 20 0 10 15 V+ – Positive Supply (V) Charge Injection vs. Analog Voltage Input Switching Threshold vs. Positive Supply Voltage 5 50 40 5 VD – Drain Voltage (V) V– = –15 V TA = 25_C V+ = 15 V V– = –15 V CL = 1 nF 4 30 Q (pC) V T (V) 3 20 2 10 1 0 –15 –10 –5 0 5 VS – Source Voltage (V) Document Number: 70044 S–02969—Rev. D, 22-Jan-01 10 15 0 5 10 15 V+ – Positive Supply (V) www.vishay.com 5 DG300A/301A/302A Vishay Siliconix TYPICAL CHARACTERISTICS (25_C UNLESS NOTED) Supply Current vs. Temperature Off Isolation and Crosstalk vs. Frequency –120 500 400 –100 Crosstalk I+ –80 (dB) I+, I– ( A) 300 V+ = 15 V V– = –15 V 200 VIN = 4 V 100 (One Input) (All Other = 0 V) Off Isolation –60 I– –40 0 –100 –55 –35 –15 5 25 45 65 85 105 V+ = +15 V V– = –15 V RL= 50 –20 10 k 125 100 k Temperature (_C) 1M 10 M f – Frequency (Hz) Supply Curents vs. Switching Frequency Leakage vs. Temperature 100 nA 15 V+ = 15 V V– = –15 V 10 nA V+ = 15 V V– = –15 V VS, VD = "14 V I S, I D I+, I– (mA) 10 ID(on) 1 nA 5 100 pA +I ID(off) or IS(off) –I 10 pA –55 –35 0 1k 10 k 100 k 1M –15 f – Frequency (Hz) 350 350 300 300 250 250 tON tOFF 50 50 "14 "16 "18 Supply Voltage (V) www.vishay.com 6 85 105 125 "20 105 125 V+ = 15 V V– = –15 V VS = 3 V tON 150 100 "12 65 200 100 0 "10 45 Switching Time vs. Temperature 400 Time (ns) Time (ns) Switching Time vs. Power Supply Voltage 150 25 Temperature (_C) 400 200 5 "22 0 –55 tOFF –35 –15 5 25 45 65 85 Temperature (_C) Document Number: 70044 S–02969—Rev. D, 22-Jan-01 DG300A/301A/302A Vishay Siliconix TEST CIRCUITS +15 V Logic “1” = Switch On V+ Logic Input D S VS = 3 V VO 50% 0V IN 5V RL 300 V– GND VS CL 33 pF Switch Output 90% 10% 0V –15 V tON CL (includes fixture and stray capacitance) VO = VS tOFF RL RL + rDS(on) FIGURE 2. Switching Time +15 V V+ VS1 = 3 V VS2 = 3 V S1 D1 S2 D2 V– Switch Output RL1 300 RL2 300 CL1 33 pF CL2 33 pF VINH 50% 0V VO1 VO2 IN GND Logic “1” = Switch On Logic Input VS1 50% VO1 0V VS2 Switch Output 0 V VO2 50% tBBM –15 V CL (includes fixture and stray capacitance) FIGURE 3. Break-Before-Make SPDT (DG301A) +15 V Rg V+ S IN Vg VO CL 1 nF 3V GND VO D VO INX ON V– OFF ON –15 V FIGURE 4. Charge Injection Document Number: 70044 S–02969—Rev. D, 22-Jan-01 www.vishay.com 7 DG300A/301A/302A Vishay Siliconix APPLICATION HINTSNO TAG GND Voltage (V) VIN Logic Input Voltage VINH(min)/VINL(max) (V) VS or VD Analog Voltage Range (V) –15 0 4/0.8 –15 to 15 –20 0 4/0.8 –20 to 20 0 0 4/0.8 0 to 15 V+ Positive Supply Voltage (V) V– Negative Supply Voltage (V) 15 20 15 Note: a. Application Hints are for DESIGN AID ONLY, not guaranteed and not subject to production testing. APPLICATIONS The DG300A series of analog switches will switch positive analog signals while using a single positive supply. This facilitates their use in applications where only one supply is available. The trade-offs of using single supplies are: 1) Increased rDS(on); 2) slower switching speed. The analog voltage should not go above or below the supply voltages which in single operation are V+ and 0 V. (See Input Switching Threshold vs. Positive Supply Voltage Curve.) +15 V 50 k 10 k +15 V 5 k VOUT 10 F +15 V DG301A 100 k +5 V 5 k TTL Input 10 k FIGURE 5. Single Supply Op Amp Switching www.vishay.com 8 Document Number: 70044 S–02969—Rev. D, 22-Jan-01 DG300A/301A/302A Vishay Siliconix APPLICATIONS +15 V CMOS Logic Input Select High = Diff. IN B +15 V –15 V Diff. IN A –15 V + – R4 75 k +15 V R2 R6 75 k 75 k Diff. IN B R1 16 k DG302A Ri1 1.5 k VOUT DG301A GND R2 75 k CMOS Logic Gain Select High = AV = 101 +15 V VOSNULL R5 R7 75 k 67 k 50 k Voltage gain of the instrumentation amplifier is: AV = 1 + 2R2 R1 (In the circuit shown, AV1 = 10.4, AV2 = 101) –15 V FIGURE 6. Low Power Instrumentation Amplifier with Digitally Selectable Inputs and Gain Document Number: 70044 S–02969—Rev. D, 22-Jan-01 www.vishay.com 9