19-1006; Rev 2; 9/01 Ultra-Low Leakage Monolithic CMOS Analog Multiplexers Features Ultra-Low Off- and On-Leakage: 1pA Typ Designed to provide the lowest possible on- and offleakages, these multiplexers switch signals from high source impedance, providing the mux operates into a high-input-impedance op amp or A/D converter. The MAX328/MAX329 are pin-for-pin replacements for the popular DG508/DG509 in these applications. Adding an external 40k resistor to each input makes the MAX328/MAX329 an excellent fault-tolerant multiplexer. Low leakage (less than 1pA at +25C) and 2.5k on-resistance allow the circuit to sustain 110V AC faults indefinitely while maintaining an error of less than 40nV for normal signals (i.e., 1pA times 40k). TTL and CMOS Logic Compatibility Bidirectional Operation (Use as Mux or Demux) Analog Signal Range Includes Power-Supply Rails Switching Speeds Less Than 1.5s Pin Compatible with DG508/DG509 and MAX358/MAX359 Latchup Proof Construction Ordering Information PART TEMP RANGE PIN-PACKAGE MAX328CPE 0C to +70C 16 Plastic DIP The MAX328/MAX329 work equally well with a single supply of 10V to 30V or dual supplies of 5V to 18V. They also perform well with unbalanced combinations of supply voltage, such as +12V and -5V or +5V and -15V. Low power dissipation (1.9mW with 15V supplies) allows use in portable applications. MAX328CWE 0C to +70C 16 Wide SO MAX328CJE 0C to +70C 16 CERDIP MAX328C/D 0C to +70C Dice* MAX328EGE -40C to +85C MAX328EPE -40C to +85C 16 Plastic DIP Applications MAX328EWE -40C to +85C 16 Wide SO MAX328EJE -40C to +85C 16 CERDIP** MAX328MJE -55C to +125C 16 CERDIP** Control Systems Data Logging Systems *Contact factory for dice specifications. **Contact factory for availability. Substrate may be allowed to float or be connected to V+. Ordering Information and Pin Configurations continued at end of data sheet. Aircraft Heads-Up Displays Data-Acquisition Systems Signal Routing Pin Configurations Typical Operating Circuit TOP VIEW 1-OF-8 CHANNEL SEQUENTIAL MUX WITH 120V AC FAULT CAPABILITY +15V -15V A0 1 16 A1 EN 2 15 A2 14 GND V- 3 40k 1/2W ANALOG INPUT V+ GND V- 40k 1/2W ANALOG INPUT i BIAS < 1pA A1 A2 OUT MAX328 13 V+ S2 5 12 S5 S3 6 11 S6 S4 7 10 S7 D S8 A0 S1 4 OP AMP S1 MAX328 +15V 16 QFN 9 D 8 S8 DIP/SO EN V+ QB CLK IN N.C. BIN DM7493 AIN A0 1 16 A1 QC EN 2 15 GND QO V- 3 S1A 4 QA V01 V02 +15V GND N.C. 14 V+ MAX329 12 S2B S3A 6 11 S3B S4A 7 10 S4B DA 8 EN IN 13 S1B S2A 5 9 DB DIP/SO (MUX ON/OFF CONTROL) ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com. 1 MAX328/MAX329 General Description The MAX328/MA329 are monolithic CMOS analog multiplexers. The MAX328 is a single-ended, 1-of-8 device, and the MAX329 is a differential, 2-of-8 device. MAX328/MAX329 Ultra-Low Leakage Monolithic CMOS Analog Multiplexers ABSOLUTE MAXIMUM RATINGS Voltage Referenced to VV+ ........................................................................................+44V GND .....................................................................................+25V Digital Inputs (Note 1), VS, VD ............................-2V to (V+ + 2V) Current (Any Terminal, Except S or D)................................30mA Continuous Current, S or D (pulsed at 1ms, 10% duty cycle max) ............................40mA Note 1: Note 2: Note 3: Note 4: Note 5: Operating Temperature Range MAX328/329 C _ _ ..............................................0C to +70C MAX328/329 E _ _ ...........................................-40C to +85C MAX328/329 M _ _.........................................-55C to +125C Power Dissipation (Package) (Note 1) 16-Pin CERDIP (Note 2) ...............................................900mW 16-Pin Plastic DIP (Note 3)...........................................470mW 16-Pin Wide SO (Note 4) ..............................................750mW 16-Pin QFN (Note 5) ...................................................1538mw Storage Temperature.........................................-65C to +150C All leads soldered or welded to PC board. Derate 12mW/C above +75C. Derate 6.3mW/C above +75C. Derate 10mW/C above +75C. Derate 19.2mW/C above +75C. 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 (V+ = +15V, V- = -15V, GND = 0V, TA = +25C, unless otherwise noted.) LIMITS PARAMETER SYMBOL MAX328M MAX329M TEST CONDITIONS MIN TYP MAX328C/E MAX329C/E MAX MIN TYP UNITS MAX SWITCH Analog Signal Range Drain-Source On-Resistance VANALOG RDS(ON) Greatest Change in Drain-Source OnResistance Between Channels RDS(ON) Source Off-Leakage Current (Note 6) IS(OFF) MAX328 Drain OffLeakage Current (Note 6) MAX329 MAX328 Drain OnLeakage Current (Note 6) MAX329 2 ID(OFF) ID(ON) 15 VD = 10V, IS = 100A VD = -10V, IS = 100A Seq. each switch on, VAL = 0.8V, VAH = 2.4V RDS(on) = RDS(ON) Max - RDS(ON) Min ( ) RDS(ON) Ave VS = 10V, VD = -10V 15 V 1.5 2.5 1.5 3.5 1.0 2.5 1.0 3.5 k 2 2 % 0.1 10 0.1 10 0.3 10 0.3 10 VD = 10V, VS = -10V 0.3 10 0.3 10 VD = -10V, VS = 10V 1.0 10 1.0 10 0.3 10 0.3 10 VD = -10V, VS = 10V 0.5 10 0.5 10 VS (all) = VD = 10V 3.0 10 3.0 10 2.0 10 2.0 10 1.5 10 1.5 10 1.0 10 1.0 10 VS = -10V, VD = 10V VD = 10V, VS = -10V VS (all) = VD = -10V VS (all) = VD = 10V VS (all) = VD = -10V VEN = 0V VEN = 0V Seq. each switch on, VAL = 0.8V, VAH = 2.4V _______________________________________________________________________________________ pA pA pA Ultra-Low Leakage Monolithic CMOS Analog Multiplexers (V+ = +15V, V- = -15V, GND = 0V, TA = +25C, unless otherwise noted.) LIMITS PARAMETER SYMBOL MAX328M MAX329M TEST CONDITIONS MIN MAX328C/E MAX329C/E TYP MAX VA = 2.4V 0.001 VA = 15V 0.001 MIN UNITS TYP MAX 1 0.001 1 1 0.001 1 INPUT Address Input Current, Input Voltage High IAH Address Input Current, Input Voltage Low IAL VEN = 2.4V VEN = 0V All VA = 0V 0.001 1 0.001 1 0.001 1 0.001 1 A A DYNAMIC Switching Time of Multiplexer tTRANSITION See Figure 1 Break-Before-Make Interval 1.0 1.5 tOPEN See Figure 2 Enable Turn-On Time tON(EN) See Figure 3 1.0 1.5 s Enable Turn-Off Time tOFF(EN) See Figure 3 0.7 1.0 s Off-Isolation OIRR Source Off-Capacitance Drain OffCapacitance MAX328 MAX329 0.2 VEN = 0V, RL = 1k, CL = 15pF, VS = 7VRMS, f = 500kHz CS(OFF) VS = 0V VEN = 0V, f = 1MHz CD(OFF) VD = 0V VEN = 0V, f = 1MHz VA = +10V Charge Injection (Note 8) Q(INJ) 0.2 s s 84 84 dB 1.8 1.8 pF 8.0 8.0 4.0 4.0 1 1 VA = 0V 2 VA = -10V 4 5 2 pF 5 pc 4 SUPPLY Positive Supply Current I+ VEN = 2.4V VA = 0V/5V 4.5 200 4.5 200 A Negative Supply Current I- VEN = 2.4V VA = 0V/5V 1 -100 1 -100 A Power-Supply Range for Continuous Operation (Note 7) VOP 18 V 5 18 5 Note 6: All leakage parameters are 100% tested at maximum rated operating temperature, i.e., +70C, +85C, +125C, and guaranteed by correlation at +25C. Note 7: Electrical characteristics, such as On-Resistance, change when power supplies other than 15V are used. Power-supply range is a design characteristic, not production tested. Note 8: Guaranteed by design. Typical values are for DESIGN AID ONLY, not guaranteed or subject to production testing. _______________________________________________________________________________________ 3 MAX328/MAX329 ELECTRICAL CHARACTERISTICS (continued) MAX328/MAX329 Ultra-Low Leakage Monolithic CMOS Analog Multiplexers ELECTRICAL CHARACTERISTICS (Over Temperature) (V+ = +15V, V- = -15V, GND = 0V, TA = TMIN to TMAX, unless otherwise noted.) LIMITS PARAMETER SYMBOL MAX328M MAX329M TEST CONDITIONS MIN TYP MAX328C/E MAX329C/E MAX MIN TYP UNITS MAX SWITCH Analog Signal Range Drain-Source On-Resistance Source OffLeakage Current (Note 9) MAX328 Drain OffLeakage Current (Note 9) MAX329 MAX328 Drain OnLeakage Current (Note 9) MAX329 VANALOG RDS(ON) IS(OFF) ID(OFF) ID(ON) 15 VD = 10V, IS = 100A VD = -10V, IS = 100A VS = 10V, VD = -10V VS = -10V, VD = 10V Seq. each switch on, VAL = 0.8V, VAH = 2.4V 15 V 2.2 4 1.9 5 1.5 4 1.2 5 k VEN = 0V 5 5 5 5 VD = 10V, VS = -10V 20 20 VD = -10V, VS = 10V 20 20 10 10 VD = 10V, VS = -10V VEN = 0V VD = -10V, VS = 10V 10 10 VS (all) = VD = 10V 20 20 VS (all) = VD = -10V VS (all) = VD = 10V VS (all) = VD = -10V Seq. each switch on, VAL = 0.8V, VAH = 2.4V 20 20 10 10 10 10 nA nA nA INPUT Address Input Current, Input Voltage High IAH Address Input Current, Input Voltage Low IAL VA = 2.4V 0.01 1 0.01 1 VA = 15V 0.01 1 0.01 1 0.01 1 0.01 1 0.01 1 0.01 1 VEN = 2.4V VEN = 0V All VA = 0V Note 9: Leakage parameters are 100% tested at maximum rated operating temperature, i.e., +70C, etc. 4 _______________________________________________________________________________________ A A Ultra-Low Leakage Monolithic CMOS Analog Multiplexers RDS(ON) vs. ANALOG INPUT FOR DUAL SUPPLIES 5V SUPPLIES 6 WITH +15V SUPPLY 4 RDS(ON) (k) RDS(ON) (k) 7 5 4 MAX328/MAX329 toc02 8 5 MAX328/MAX329 toc01 9 RDS(ON) vs. ANALOG INPUT FOR SINGLE SUPPLY 3 2 3 2 1 1 15V SUPPLIES 0 0 -5 0 5 10 15 0 5 15 10 ANALOG INPUT (V) IS(OFF) vs. TEMPERATURE ID(ON), ID(OFF) vs. TEMPERATURE V+ = 15V V- = 15V 1.0 100 0.1 0.01 MAX328/MAX329 toc04 ANALOG INPUT (V) LEAKAGE (nA) LEAKAGE (nA) 10.0 -10 MAX328/MAX329 toc03 -15 V+ = 15V V- = 15V 10 1.0 0.1 MAX328/ MAX329 0.001 0.0001 -55 -35 -15 5 25 45 65 TEMPERATURE (C) 85 105 125 MAX328 0.01 0.001 -55 -35 -15 5 25 45 65 85 105 125 TEMPERATURE (C) _______________________________________________________________________________________ 5 MAX328/MAX329 Typical Operating Characteristics (TA = +25C, unless otherwise noted.) Ultra-Low Leakage Monolithic CMOS Analog Multiplexers MAX328/MAX329 Pin Description PIN MAX328 NAME MAX329 QFN DIP/SO QFN 1, 15, 16 15, 14, 13 -- -- A0, A2, A1 -- -- 1, 16 15, 14 A0, A1 2 16 2 16 EN Enable 3 1 3 1 V- Negative-Supply Voltage Input 4-7 2-5 -- -- S1-S4 -- -- 4-7 2-5 S1A-S4A 8 6 -- -- D Address Input Address Input Analog Inputs--Bidirectional Analog Inputs--Bidirectional Analog Outputs--Bidirectional -- -- 8, 9 6, 7 DA, DB Analog Outputs--Bidirectional 9-12 7-10 -- -- S8-S5 Analog Inputs--Bidirectional -- -- 10-13 8-11 S4B-S1B Analog Inputs--Bidirectional Positive-Supply Voltage Input 13 11 14 12 V+ 14 12 15 13 GND Ground Truth Table--MAX329 Truth Table--MAX328 6 FUNCTION DIP/SO EN ON SWITCH A1 A0 EN ON SWITCH X 0 None X X 0 None 0 0 1 0 0 1 1 0 1 1 2 0 1 1 2 1 0 1 3 1 0 1 3 0 1 1 1 4 1 1 1 4 1 0 0 1 5 1 0 1 1 6 1 1 0 1 7 1 1 1 1 8 A2 A1 A0 X X 0 0 0 0 Note: Logic "0" = VAL 0.8V, Logic "1" = VAH 2.4V _______________________________________________________________________________________ Ultra-Low Leakage Monolithic CMOS Analog Multiplexers MAX328/MAX329 VAH = 3.0V A2 50% MAX328 ADDRESS DRIVE (VA) 0V VA A1 50 +10V OUTPUT A A0 S8 EN OUT +VAH GND 10V S1 S2 S2-S7 10V 10M PROBE 14pF 90% -10V tA Figure 1. Access Time vs. Logic Level (High) VAH = 3.0V A2 ADDRESS DRIVE (VA) 0V VA A1 A0 50 OUTPUT EN 2.4V 50% +5V S1 MAX328 S2-S7 S8 GND VOUT OUT 50% 1k 12.5pF tOPEN Figure 2. Break-Before-Make Delay (tOPEN) VAH = 3.0V A2 +10V S1 ENABLE DRIVE 50% A1 EN OUTPUT 90% S2-S7 A0 0V 90% MAX328 VA GND OUT 1k 12.5pF 50 tON(EN) tOFF(EN) Figure 3. Enable Delay (tON(EN), tOFF(EN)) _______________________________________________________________________________________ 7 MAX328/MAX329 Ultra-Low Leakage Monolithic CMOS Analog Multiplexers Applications Information Figure 4 is a typical circuit for converting the MAX328/MAX329 into a fault-tolerant mux. In this application, the internal diodes limit the voltage at the MAX328 input to 15.7V (15V supplies). No external diodes need to be added with the MAX328/MAX329, unlike conventional multiplexers requiring external diodes. The resistors, R, need to be 39k or higher to limit the power dissipation in the resistor when a 120V AC fault occurs (i.e., power dissipation is (120-16) 2/39k or 0.28W. This is why a 1/2/W resistor is needed). The circuit withstands an indefinite fault to a 120V AC line with no damage to any component. In addition to allowing fault-protection, the guaranteed low leakage of the MAX328/MAX329 also reduces signal errors. The circuit in Figure 4 produces an error voltage of 10pA (max leakage) x 39k or 0.39V at room temperature and 39V at +125C. Therefore, for 10V signals, the MAX328/MAX329 allows 17-bit resolution (38V = 1LSB) over the full temperature range. Chip Topographies S8 D 9 S7 8 10 7 6 S6 S5 V+ GND 11 5 12 4 13 3 S4 S3 S2 0.118" (2.90mm) S1 V- 14 15 A2 16 1 A1 A0 2 EN 0.104" (2.64mm) MAX328 DB DA 9 S4B A0 1 16 A1 S3B EN 2 -15V 1F MAX328 MAX329 13 S1B +15V 1F V+ 7 11 6 12 5 13 4 14 3 4 R R S2 5 S3 S5 12 R R 6 11 7 10 VOUT 8 9 R S4 S2B 14 3 R S1 15 A2 8 10 S6 R GND 15 16 S7 R S8 R = 39k 1/2W A1 1 A0 2 EN 0.104" (2.64mm) MAX329 Figure 4. Fault-Tolerant MUX (indefinitely withstands 120V AC fault voltages) 8 _______________________________________________________________________________________ S4A S3A S2A 0.118" (2.90mm) S1A V- Ultra-Low Leakage Monolithic CMOS Analog Multiplexers -40C to +85C 16 Wide SO -40C to +85C 16 CERDIP** A1 A2 14 13 V+ S2 3 10 S5 S3 4 9 S6 12 V+ 8 S7 7 5 S4 MAX329MJE -55C to +125C 16 CERDIP** *Contact factory for dice specifications. **Contact factory for availability. Substrate may be allowed to float or be connected to V+. S8 GND 13 MAX328 V- 1 S1A 2 11 S1B S2A 3 10 S2B S3A 4 9 S3B 8 S4A 5 LOGIC S4B MAX329EJE 11 A1 MAX329EWE 16 Plastic DIP 2 14 -40C to +85C GND 7 MAX329EPE S1 12 LOGIC DB 16 QFN A0 -40C to +85C 1 15 MAX329EGE V- 6 Dice* D 0C to +70C A0 16 CERDIP MAX329C/D 15 16 Wide SO 0C to +70C 6 0C to +70C MAX329CJE DA MAX329CWE TOP VIEW EN 16 Plastic DIP 16 PIN-PACKAGE 0C to +70C EN TEMP RANGE 16 PART MAX329CPE Pin Configurations (continued) MAX329 Package Information For the latest package outline information, go to www.maxim-ic.com/packages. 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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________ 9 (c) 2001 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products. MAX328/MAX329 Ordering Information (continued) ENGLISH * ???? * ??? * ??? WHAT'S NEW PRODUCTS SOLUTIONS DESIGN APPNOTES SUPPORT BUY COMPANY MEMBERS MAX328 Part Number Table Notes: 1. See the MAX328 QuickView Data Sheet for further information on this product family or download the MAX328 full data sheet (PDF, 768kB). 2. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. 3. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. 4. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: See full data sheet or Part Naming C onventions. 5. * Some packages have variations, listed on the drawing. "PkgC ode/Variation" tells which variation the product uses. Part Number Free Sample Buy Direct Package: TYPE PINS SIZE Temp RoHS/Lead-Free? Materials Analysis DRAWING CODE/VAR * MAX328C JE C eramic DIP;16 pin;.300" Dwg: 21-0045A (PDF) Use pkgcode/variation: J16-3* 0C to +70C RoHS/Lead-Free: No Materials Analysis MAX328EJE C eramic DIP;16 pin;.300" Dwg: 21-0045A (PDF) Use pkgcode/variation: J16-3* -40C to +85C RoHS/Lead-Free: No Materials Analysis MAX328MJE C eramic DIP;16 pin;.300" Dwg: 21-0045A (PDF) Use pkgcode/variation: J16-3* -55C to +125C RoHS/Lead-Free: No Materials Analysis MAX328C /D RoHS/Lead-Free: No MAX328C PE+ PDIP;16 pin;.300" Dwg: 21-0043D (PDF) Use pkgcode/variation: P16+2* 0C to +70C RoHS/Lead-Free: Yes Materials Analysis MAX328EPE+ PDIP;16 pin;.300" Dwg: 21-0043D (PDF) Use pkgcode/variation: P16+2* -40C to +85C RoHS/Lead-Free: Yes Materials Analysis MAX328C PE PDIP;16 pin;.300" Dwg: 21-0043D (PDF) Use pkgcode/variation: P16-2* 0C to +70C RoHS/Lead-Free: No Materials Analysis MAX328EPE PDIP;16 pin;.300" Dwg: 21-0043D (PDF) Use pkgcode/variation: P16-2* -40C to +85C RoHS/Lead-Free: No Materials Analysis MAX328C WE-T SOIC ;16 pin;.300" Dwg: 21-0042B (PDF) Use pkgcode/variation: W16-2* 0C to +70C RoHS/Lead-Free: No Materials Analysis MAX328C WE SOIC ;16 pin;.300" Dwg: 21-0042B (PDF) Use pkgcode/variation: W16-2* 0C to +70C RoHS/Lead-Free: No Materials Analysis MAX328C WE+T SOIC ;16 pin;.300" Dwg: 21-0042B (PDF) Use pkgcode/variation: W16+2* 0C to +70C RoHS/Lead-Free: Yes Materials Analysis MAX328C WE+ SOIC ;16 pin;.300" Dwg: 21-0042B (PDF) Use pkgcode/variation: W16+2* 0C to +70C RoHS/Lead-Free: Yes Materials Analysis MAX328EWE-T SOIC ;16 pin;.300" Dwg: 21-0042B (PDF) Use pkgcode/variation: W16-2* -40C to +85C RoHS/Lead-Free: No Materials Analysis MAX328EWE SOIC ;16 pin;.300" Dwg: 21-0042B (PDF) Use pkgcode/variation: W16-2* -40C to +85C RoHS/Lead-Free: No Materials Analysis MAX328EWE+ SOIC ;16 pin;.300" Dwg: 21-0042B (PDF) Use pkgcode/variation: W16+2* -40C to +85C RoHS/Lead-Free: Yes Materials Analysis MAX328EWE+T SOIC ;16 pin;.300" Dwg: 21-0042B (PDF) Use pkgcode/variation: W16+2* -40C to +85C RoHS/Lead-Free: Yes Materials Analysis MAX328ETE+ THIN QFN;16 pin;5x5x0.8mm Dwg: 21-0140K (PDF) Use pkgcode/variation: T1655+2* -40C to +85C RoHS/Lead-Free: Yes Materials Analysis MAX328ETE+T THIN QFN;16 pin;5x5x0.8mm Dwg: 21-0140K (PDF) Use pkgcode/variation: T1655+2* -40C to +85C RoHS/Lead-Free: Yes Materials Analysis MAX328ETE THIN QFN;16 pin;5x5x0.8mm Dwg: 21-0140K (PDF) Use pkgcode/variation: T1655-2* -40C to +85C RoHS/Lead-Free: No Materials Analysis MAX328ETE-T THIN QFN;16 pin;5x5x0.8mm Dwg: 21-0140K (PDF) Use pkgcode/variation: T1655-2* -40C to +85C RoHS/Lead-Free: No Materials Analysis Didn't Find What You Need? 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