19-0271; Rev 0; 7/94 Precision, 8-Channel/Dual 4-Channel, High-Performance, CMOS Analog Multiplexers ________________________Applications Sample-and-Hold Circuits Automatic Test Equipment Heads-Up Displays Guidance and Control Systems Military Radios Communications Systems Battery-Operated Systems PBX, PABX Audio Signal Routing ____________________________Features ♦ Guaranteed On-Resistance Match Between Channels, <5Ω Max ♦ Low On-Resistance, <100Ω Max ♦ Guaranteed Flat On-Resistance over Specified Signal Range, 7Ω Max ♦ Guarateed Low Charge Injection, <10pC ♦ NO-Off Leakage Current <5nA at +85°C ♦ COM-Off Leakage Current <20nA at +85°C ♦ ESD Protection >2000V ♦ Plug-In Upgrade for Industry-Standard DG408/DG409/DG508A/DG509A ♦ Single-Supply Operation (+4.5V to +30V) Bipolar-Supply Operation (±4.5V to ±20V) ♦ Low Power Consumption, <300µW ♦ Rail-to-Rail Signal Handling ♦ TTL/CMOS-Logic Compatible ______________Ordering Information PART TEMP. RANGE MAX308CPE 0°C to +70°C 16 Plastic DIP PIN-PACKAGE MAX308CSE MAX308C/D MAX308EPE MAX308ESE MAX308EJE MAX308MJE 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -55°C to +125°C 16 Narrow SO Dice* 16 Plastic DIP 16 Narrow SO 16 CERDIP 16 CERDIP** Ordering Information continued at end of data sheet. * Contact factory for dice specifications. ** Contact factory for availability. _____________________Pin Configurations/Functional Diagrams/Truth Tables TOP VIEW V+ A0 1 16 A1 EN 2 15 A2 V- 3 14 GND NO1 4 MAX308 13 V+ NO2 NO3 NO4 NO6 NO3 6 11 NO6 NO7 NO4 7 10 NO7 NO8 DIP/SO Continued at end of data sheet. NO8 COM NO5 12 NO5 9 GND NO1 NO2 5 COM 8 V- CMOS DECODE LOGIC A2 A1 A0 EN MAX308 8-CHANNEL SINGLE-ENDED MULTIPLEXER ________________________________________________________________ Maxim Integrated Products Call toll free 1-800-998-8800 for free samples or literature. 1 MAX308/MAX309 _______________General Description The MAX308/MAX309 precision, monolithic, CMOS analog multiplexers (muxes) offer low on-resistance (less than 100Ω), which is matched to within 5Ω between channels and remains flat over the specified analog signal range (7Ω max). They also offer low leakage over temperature (NO-off leakage current less than 5nA at +85°C) and fast switching speeds (transition time less than 250ns). The MAX308 is a single-ended 1-of-8 device, and the MAX309 is a differential 2-of-4 device. The MAX308/MAX309 are fabricated with Maxim’s improved 44V silicon-gate process. Design improvements yield extremely low charge injection (less than 10pC) and guarantee electrostatic discharge protection greater than 2000V. These muxes operate with a single +4.5V to +30V supply or bipolar ±4.5V to ±20V supplies, while retaining TTL/CMOS-logic input compatibility and fast switching. CMOS inputs provide reduced input loading. These improved parts are plug-in upgrades for the industrystandard DG408, DG409, DG508A, and DG509A. MAX308/MAX309 Precision, 8-Channel/Dual 4-Channel, High-Performance, CMOS Analog Multiplexers ABSOLUTE MAXIMUM RATINGS Voltage Referenced to VV+ ............................................................................-0.3V, 44V GND .........................................................................-0.3V, 25V Digital Inputs, NO, COM (Note 1)...........(V- - 2V) to (V+ + 2V) or 30mA, (whichever occurs first) Continuous Current (any terminal) ......................................30mA Peak Current, NO or COM (pulsed at 1ms, 10% duty cycle max) ..........................100mA Continuous Power Dissipation (TA = +70°C) Plastic DIP (derate 10.53mW/°C above +70°C) ..........842mW Narrow SO (derate 8.70mW/°C above +70°C) ............696mW CERDIP (derate 10.00mW/°C above +70°C) ...............800mW Operating Temperature Ranges MAX30_C_ _ .......................................................0°C to +70°C MAX30_E_ _.....................................................-40°C to +85°C MAX30_MJE ..................................................-55°C to +125°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10sec) .............................+300°C Signals on NO, COM, EN, A0, A1, or A2 exceeding V+ or V- are clamped by internal diodes. Limit forward current to maximum current ratings. Note 1: Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS—Dual Supplies (V+ = +15V, V- = -15V, GND = 0V, VAH = +2.4V, VAL = +0.8V, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER SYMBOL MIN CONDITIONS TYP MAX (Note 2) UNITS SWITCH Analog Signal Range On-Resistance VNO, VCOM RON (Note 3) -15 INO = -1.0mA, VCOM = ±10V TA = +25°C ∆RON INO = -1.0mA, VCOM = ±10V (Note 4) TA = +25°C On-Resistance Flatness RFLAT INO = -1.0mA, VCOM = ±5V or 0V TA = +25°C NO-Off Leakage Current (Note 5) VCOM = +10V, VNO = ±10V, VEN = 0V TA = +25°C INO(OFF) VNO = ±10V, VCOM = +10V, MAX308 VEN = 0V TA = +25°C VNO = +10V, VCOM = ±10V, MAX309 VEN = 0V TA = +25°C ICOM(OFF) 60 TA = TMIN to TMAX On-Resistance Matching Between Channels COM-Off Leakage Current (Note 5) 1.5 TA = TMIN to TMAX TA = TMIN to TMAX COM-On Leakage Current (Note 5) 2 ICOM(ON) TA = TMIN to TMAX 1.8 7 10 -0.5 0.01 -2.5 2.5 M -5.0 5.0 -0.75 C, E -10 M -20 -0.75 0.02 20 0.02 0.75 -5 5 -10 10 -10 M -20 -0.75 Ω Ω nA 10 M -0.75 Ω 0.75 C, E C, E V 0.5 C, E TA = +25°C TA = TMIN to TMAX 5 8 TA = TMIN to TMAX TA = TMIN to TMAX 100 125 TA = TMIN to TMAX TA = +25°C VCOM = ±10V, MAX308 VNO = ±10V, sequence each switch MAX309 on 15 0.02 nA 0.75 10 20 0.02 0.75 C, E -5 5 M -10 10 _______________________________________________________________________________________ nA Precision, 8-Channel/Dual 4-Channel, High-Performance, CMOS Analog Multiplexers (V+ = +15V, V- = -15V, GND = 0V, VAH = +2.4V, VAL = +0.8V, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX (Note 2) UNITS INPUT Input Current with Input Voltage High IAH VA = 2.4V or 15V -1.0 1.0 µA Input Current with Input Voltage Low IAL VEN = 0V or 2.4V, VA = 0V -1.0 1.0 µA ±20 30 75 0.5 V SUPPLY Power-Supply Range ±4.5 VEN = VA = 0V or 4.5V Positive Supply Current Negative Supply Current I+ I- VEN = 2.4V, VA(ALL) = 0V or 2.4V VEN = 2.4V, VA(ALL) = 0V or 2.4V TA = +25°C TA = TMIN to TMAX TA = +25°C TA = TMIN to TMAX TA = +25°C TA = TMIN to TMAX 16 0.075 -1 -10 µA mA 1 10 µA 175 250 ns DYNAMIC Transistion Time tTRANS Figure 2 Break-Before-Make Interval tOPEN Figure 4 Enable Turn-On Time tON(EN) Figure 3 Enable Turn-Off Time tOFF(EN) Figure 3 Charge Injection (Note 3) Q CL = 1.0nF, VNO = 0V, RS = 0Ω, Figure 5 TA = +25°C TA = TMIN to TMAX TA = +25°C TA = +25°C TA = TMIN to TMAX TA = +25°C TA = TMIN to TMAX 85 10 40 85 TA = +25°C 2 ns 150 225 150 300 10 ns ns pC Off Isolation (Note 6) VISO VEN = 0V, RL = 1kΩ, f = 100kHz, Figure 6 TA = +25°C -75 dB Crosstalk Between Channels VCT VEN = 2.4V, f = 100kHz, VGEN = 1VP-P, RL = 1kΩ, Figure 7 TA = +25°C -92 dB Logic Input Capacitance CIN f = 1MHz TA = +25°C 8 pF f = 1MHz, VEN = VNO = 0V, Figure 8 TA = +25°C 3 pF NO-Off Capacitance COM-Off Capacitance COM-On Capacitance CNO(OFF) f = 1MHz, VEN = 0.8V VCOM = 0V, Figure 8 f = 1MHz, VEN = 2.4V CCOM(ON) VCOM = 0V, Figure 8 MAX308 CCOM(OFF) 26 TA = +25°C MAX309 pF 14 MAX308 37 TA = +25°C MAX309 pF 25 _______________________________________________________________________________________ 3 MAX308/MAX309 ELECTRICAL CHARACTERISTICS—Dual Supplies (continued) MAX308/MAX309 Precision, 8-Channel/Dual 4-Channel, High-Performance, CMOS Analog Multiplexers ELECTRICAL CHARACTERISTICS—Single Supply (V+ = +12V, V- = 0V, GND = 0V, VAH = +2.4V, VAL = +0.8V, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX (Note 2) UNITS SWITCH Analog Signal Range On-Resistance VNO, VCOM RON (Note 3) INO = -1.0mA VCOM = 3V or 10V 0 12 V TA = +25°C 120 175 Ω TA = +25°C 115 450 ns TA = +25°C 100 600 ns TA = +25°C 75 300 ns TA = +25°C 2 10 pC DYNAMIC Transition Time (Note 3) tTRANS Enable Turn-On Time (Note 3) tON(EN) Enable Turn-Off Time (Note 3) tOFF(EN) Charge Injection (Note 3) Q VNO1 = 8V, VNO8 = 0V, VIN = 2.4V, Figure 2 VINH = 2.4V, VINL = 0V, VNO1 = 5V, Figure 3 VINH = 2.4V, VINL = 0V, VNO1 = 5V, Figure 3 CL = 1.0nF, VNO = 0V, RS = 0Ω Note 2: The algebraic convention where the most negative value is a minimum and the most positive value a maximum is used in this data sheet. Note 3: Guaranteed by design. Note 4: ∆RON = RON(MAX) - RON(MIN). On-resistance match between channels and flatness are guaranteed only with specified voltages. Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured at the extremes of the specified analog signal range. Note 5: Leakage parameters are 100% tested at the maximum rated hot temperature and guaranteed by correlation at +25°C. Note 6: Off isolation = 20log VCOM/VNO, where VCOM = output and VNO = input to off switch. 4 _______________________________________________________________________________________ Precision, 8-Channel/Dual 4-Channel, High-Performance, CMOS Analog Multiplexers ON-RESISTANCE vs. VCOM AND TEMPERATURE (DUAL SUPPLIES) 140 ±5V V+ = +15V V- = -15V 400 100 360 320 120 +125°C 80 ±15V 60 60 +25°C -55°C 40 ±20V RON (Ω) 200 160 40 10V 120 20 0 -15 -10 -5 0 5 10 15 -15 20 -10 -5 ON-RESISTANCE vs. VCOM AND TEMPERATURE (SINGLE SUPPLY) +25°C 80 -55°C 60 15 0 ICOM (ON) 0 15 0.01 ICOM (ON) 0.0001 -55 -35 -15 VCOM (V) 5 25 45 65 -55 -35 -15 85 105 125 I+ 10 I+, I- (µA) 0 V+ = 12V V- = 0V -10 85 105 125 MAX308/9 TOC-08 MAX308/9 TOC-07 100 V+ = +15V V- = -15V 10 65 SUPPLY CURRENT vs. TEMPERATURE CHARGE INJECTION vs. VCOM 20 25 45 5 TEMPERATURE (°C) TEMPERATURE (°C) 30 Qj (pC) 1 0.1 0.001 0.0001 10 20 10 INO (OFF) 0.001 20 V+ = 15V V- = -15V 100 1 0.1 15 1000 10 0.01 5 10 ON LEAKAGE vs. TEMPERATURE V+ = 15V V- = -15V 100 40 0 5 VCOM (V) MAX308/9 TOC-05 MAX308/9 TOC-04 +85°C 100 10 1000 OFF LEAKAGE (nA) +125°C 120 5 OFF LEAKAGE vs. TEMPERATURE V+ = 15V V- = 0V 140 0 VCOM (V) VCOM (V) 160 20V 40 ON LEAKAGE (nA) 0 -20 15V 80 20 RON (Ω) 5V 240 MAX308/9 TOC-05 RON (Ω) 80 280 +85°C RON (Ω) ±10V 100 MAX308/9 TOC-03 120 MAX308/9 TOC-01 160 ON-RESISTANCE vs. VCOM (SINGLE SUPPLY) MAX308/9 TOC-02 ON-RESISTANCE vs. VCOM (DUAL SUPPLIES) 1 0.1 I0.01 -20 V+ = +15V V- = -15V VEN = VA = 0V, 4.5V 0.001 -30 -15 -10 -5 0 VCOM (V) 5 10 15 -55 -35 -15 5 25 45 65 85 105 125 TEMPERATURE (°C) _______________________________________________________________________________________ 5 MAX308/MAX309 __________________________________________Typical Operating Characteristics (TA = +25°C, unless otherwise noted.) MAX308/MAX309 Precision, 8-Channel/Dual 4-Channel, High-Performance, CMOS Analog Multiplexers ______________________________________________________________Pin Description PIN MAX308 MAX309 NAME FUNCTION 1, 15, 16 — A0, A2, A1 Address Inputs — 1, 16 A0, A1 Address Inputs 2 2 EN Enable Input 3 3 V- Negative Supply Voltage Input 4–7 — NO1–NO4 Analog Inputs—bidirectional — 4–7 NO1A–NO4A Analog Inputs—bidirectional 8 — COM Analog Output—bidirectional — 8, 9 COMA, COMB Analog Outputs—bidirectional 9–12 — NO8–NO5 Analog Inputs—bidirectional — 10–13 NO4B–NO1B Analog Inputs—bidirectional 13 14 V+ Positive Supply Voltage Input 14 15 GND Ground __________Applications Information V+ Operation with Supply Voltages Other than 15V Using supply voltages less than ±15V will reduce the analog signal range. The MAX308/MAX309 switches operate with ±4.5V to ±20V bipolar supplies or with a +4.5V to +30V single supply. Connect V- to GND when operating with a single supply. Both device types can also operate with unbalanced supplies, such as +24V and -5V. The Typical Operating Characteristics graphs show typical on-resistance with 20V, 15V, 10V, and 5V supplies. (Switching times increase by a factor of two or more for operation at 5V.) Overvoltage Protection Proper power-supply sequencing is recommended for all CMOS devices. Do not exceed the absolute maximum ratings, because stresses beyond the listed ratings may cause permanent damage to the devices. Always sequence V+ on first, then V-, followed by the logic inputs, NO, or COM. If power-supply sequencing is not possible, add two small signal diodes in series with supply pins for overvoltage protection (Figure 1). Adding diodes reduces the analog signal range to 1V below V+ and 1V above V-, but does not affect the devices’ low switch resistance and low leakage characteristics. Device operation is unchanged, and the difference between V+ and V- should not exceed +44V. 6 NO COM Vg V- Figure 1. Overvoltage Protection Using External Blocking Diodes _______________________________________________________________________________________ Precision, 8-Channel/Dual 4-Channel, High-Performance, CMOS Analog Multiplexers +15V V+ NO1 A2 A1 ±10V NO2-NO7 A0 MAX308 NO8 EN +10V COM GND VOUT V- LOGIC INPUT 50% 35pF 50Ω 0V 300Ω -15V +15V VNO1 SWITCH OUTPUT VOUT V+ NO1B A1 ±10V 90% 0V A0 90% NO1A-NO4A VNO8 NO4B MAX309 EN +10V 50Ω tTRANS tTRANS COMB V- GND tr < 20ns tf < 20ns +3V ON VOUT 35pF 300Ω -15V Figure 2. Transition Time +15V V+ EN NO1 -5V NO2-NO8 A0 A1 MAX308 A2 COM GND 50Ω VOUT V- 35pF 1k LOGIC INPUT A1 50Ω tOFF(EN) 0V +15V V+ NO1B 10% SWITCH OUTPUT -5V NO1A-NO4A NO2B-NO4B, COMA A0 50% 0V tON(EN) -15V EN tr < 20ns tf < 20ns +3V 90% VOUT MAX309 GND COMB V- VOUT 1k 35pF -15V Figure 3. Enable Switching Time _______________________________________________________________________________________ 7 MAX308/MAX309 ______________________________________________Test Circuits/Timing Diagrams MAX308/MAX309 Precision, 8-Channel/Dual 4-Channel, High-Performance, CMOS Analog Multiplexers _________________________________Test Circuits/Timing Diagrams (continued) +15V +2.4V V+ EN NO1-NO8 LOGIC INPUT +5V tr < 20ns tf < 20ns +3V 50% 0V A0 A1 VOUT MAX308 80% A2 COM GND SWITCH OUTPUT VOUT V- 35pF tOPEN 0V 300Ω 50Ω -15V Figure 4. Break-Before-Make Interval +15V RS V+ NO LOGIC INPUT EN VS CHANNEL SELECT OFF ON OFF 0V A0 COM A1 A2 +3V VOUT MAX308 CL = 1000nF GND V- ∆VOUT VOUT ∆VOUT IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER ERROR Q WHEN THE CHANNEL TURNS OFF. -15V Q = CL = ∆VOUT Figure 5. Charge Injection 8 _______________________________________________________________________________________ Precision, 8-Channel/Dual 4-Channel, High-Performance, CMOS Analog Multiplexers +15V +15V VIN VIN NO1 RS = 50Ω V+ NO8 COM A1 VOUT RS = 50Ω MAX308 A2 V+ NO1 NO2 NO8 A0 10nF 10nF RL = 1kΩ MAX308 COM A0 A1 RL = 1kΩ A2 EN GND 10nF V- GND OFF ISOLATION = 20log EN 10nF -15V VOUT VIN CROSSTALK = 20log Figure 6. Off Isolation VOUT V- -15V VOUT VIN Figure 7. Crosstalk +15V V+ NO1 A2 CHANNEL SELECT MAX308 A1 NO8 A0 GND EN COM V- Meter Impedance Analyzer or Equivalent f = 1MHz -15V Figure 8. NO/COM Capacitance _______________________________________________________________________________________ 9 MAX308/MAX309 _________________________________Test Circuits/Timing Diagrams (continued) MAX308/MAX309 Precision, 8-Channel/Dual 4-Channel, High-Performance, CMOS Analog Multiplexers ________Pin Configurations/Functional Diagrams/Truth Tables (continued) TOP VIEW V+ V- GND NO1A A0 1 16 A1 NO2A EN 2 15 GND NO3A 14 V+ NO4A 13 NO1B NO1B V- 3 NO1A 4 MAX309 NO2A 5 12 NO2B NO3A 6 11 NO3B NO4A 7 10 N04B COMA 8 9 COMB COMA NO2B COMB NO3B NO4B CMOS DECODE LOGIC DIP/SO A1 EN A0 MAX309 4-CHANNEL DIFFERENTIAL MULTIPLEXER A2 A1 A0 EN ON SWITCH X 0 0 0 0 1 1 1 1 X 0 0 1 1 0 0 1 1 X 0 1 0 1 0 1 0 1 0 1 1 1 1 1 1 1 1 None 1 2 3 4 5 6 7 8 MAX308 LOGIC “0” VAL ≤ 0.8V, LOGIC “1” VAH ≥ 2.4V 10 A1 A0 EN ON SWITCH X X 0 None 0 0 1 1 0 1 1 2 1 0 1 3 1 1 1 4 MAX309 LOGIC “0” VAL ≤ 0.8V, LOGIC “1” VAH ≥ 2.4V ______________________________________________________________________________________ Precision, 8-Channel/Dual 4-Channel, High-Performance, CMOS Analog Multiplexers TEMP. RANGE PIN-PACKAGE MAX309CPE PART 0°C to +70°C 16 Plastic DIP MAX309CSE MAX309C/D MAX309EPE MAX309ESE MAX309EJE MAX309MJE 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -55°C to +125°C 16 Narrow SO Dice* 16 Plastic DIP 16 Narrow SO 16 CERDIP 16 CERDIP** MAX308/MAX309 _Ordering Information (continued) * Contact factory for dice specifications. ** Contact factory for availability. ______________________________________________________________________________________ 11 MAX308/MAX309 Precision, 8-Channel/Dual 4-Channel, High-Performance, CMOS Analog Multiplexers __________________________________________________________Chip Topographies MAX308 EN A0 A1 A2 MAX309 GND EN A0 A1 N.C. GND N.C. V- V+ N.C. V- V+ NO1 NO5 NO1A NO1B NO2 NO6 NO2A NO2B 0.136 (3.45mm) N.C. NO3 NO4 COM NO8 NO7 0.136 (3.45mm) NO3B NO3A NO4A 0.080" (2.03mm) COMA COMB NO4B 0.080" (2.03mm) N.C. = NO INTERNAL CONNECTION TRANSISTOR COUNT: 122 TRANSISTOR COUNT: 122 SUBSTRATE CONNECTED TO V+ SUBSTRATE CONNECTED TO V+ Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 12 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 © 1994 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.