MAX328/MAX329 19-1006 Rev 3 2/11 Ultra-Low Leakage Monolithic CMOS Analog Multiplexers General Description Features The MAX328/MA329 are monolithic CMOS analog multi- Ultra-Low Off- and On-Leakage: 1pA Typ plexers. The MAX328 is a single-ended, 1-of-8 device, Bidirectional Operation (Use as Mux or Demux) and the MAX329 is a differential, 2-of-8 device. TTL and CMOS Logic Compatibility Designed to provide the lowest possible on- and off- Analog-Signal Range Includes Power-Supply Rails leakages, these multiplexers switch signals from high source impedance, providing the mux operates into a Switching Speeds Less Than 1.5s high-input-impedance op amp or A/D converter. The Pin Compatible with DG508/DG509 and MAX328/MAX329 are pin-for-pin replacements for the MAX358/MAX359 popular DG508/DG509 in these applications. Latchup Proof Construction Adding an external 40k resistor to each input makes the MAX328/MAX329 an excellent fault-tolerant multi- Ordering Information plexer. Low leakage (less than 1pA at +25C) and PART TEMP RANGE PIN-PACKAGE 2.5k on-resistance allow the circuit to sustain 110V MAX328CPE+ 0C to +70C 16 Plastic DIP AC faults indefinitely while maintaining an error of less than 40nV for normal signals (i.e., 1pA times 40k). MAX328CWE+ 0C to +70C 16 Wide SO The MAX328/MAX329 work equally well with a single MAX328CJE 0C to +70C 16 CERDIP supply of 10V to 30V or dual supplies of 5V to 18V. MAX328C/D 0C to +70C Dice* They also perform well with unbalanced combinations of MAX328ETE+ -40C to +85C 16 TQFN-EP** supply voltage, such as +12V and -5V or +5V and -15V. MAX328EPE+ -40C to +85C 16 Plastic DIP Low power dissipation (1.9mW with 15V supplies) allows use in portable applications. MAX328EWE+ -40C to +85C 16 Wide SO MAX328EJE -40C to +85C 16 CERDIP*** Applications MAX328MJE -55C to +125C 16 CERDIP*** Control Systems +Denotes a lead(Pb)-free/RoHS-compliant package. Data Logging Systems *Contact factory for dice specifications. **EP = Exposed pad. Aircraft Heads-Up Displays ***Contact factory for availability. Substrate may be allowed to Data-Acquisition Systems be unconnected or be connected to V+. Ordering Information continued at end of data sheet. Signal Routing Typical Operating Circuit Pin Configurations 1-OF-8 CHANNEL SEQUENTIAL MUX WITH 120V AC FAULT CAPABILITY +15V -15V TOP VIEW 40k V+ GND V- 1/2W ANALOG S1 OP + + INPUT OUT AMP A0 A0 1 16 A1 1 16 A1 MAX328 D 40k EN 2 15 A2 EN 2 15 GND 1/2W ANALOG S8 i BIAS < 1pA +15V INPUT V- 3 14 GND V- 3 14 V+ A0 A1 A2 EN 4 MAX328 S1 13 V+ S1A 4 MAX329 13 S1B V+ Q S2 5 12 S5 S2A 5 12 S2B B CLK IN BIN Q S3 6 11 S6 S3A 6 11 S3B C DM7493 S4 7 10 S7 S4A 7 10 S4B N.C. AIN QO D 8 9 S8 DA 9 DB Q N.C. 8 A V V GND 01 02 DIP/SO DIP/SO +15V EN IN Pin Configurations continued at end of data sheet. (MUX ON/OFF CONTROL) Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.Ultra-Low Leakage Monolithic CMOS Analog Multiplexers ABSOLUTE MAXIMUM RATINGS Voltage Referenced to V- Power Dissipation (Package) (Note 1) V+ ........................................................................................+44V CERDIP (derate 10mW/C above +70C) .....................800mW GND.....................................................................................+25V PDIP (derate 10.5mW/C above +70C) ....................842.1mW Digital Inputs (Note 1), V , V ............................-2V to (V+ + 2V) Wide SO (derate 14.3mW/C above +70C) ............1142.9mW S D Current (Any Terminal, Except S or D)................................30mA TQFN (derate 33.3mW/C above +70C) .................2666.7mw Continuous Current, S or D Storage Temperature.........................................-65C to +150C (pulsed at 1ms, 10% duty cycle max)..............................40mA Lead Temperature (soldering, 10s) .................................+300C Operating Temperature Range Soldering Temperature (reflow) MAX328/329 C ................................................0C to +70C Lead(Pb)-free packages (PDIP, TQFN, Wide SO) ........+260C MAX328/329 E .............................................-40C to +85C Packages containing lead(Pb) (CERDIP, PDIP, Wide SO)..+240C MAX328/329 M ..........................................-55C to +125C Packages containing lead(Pb) (TQFN) .........................+260C Note 1: All leads soldered or welded to PC board. 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, V = 0V, T = +25C, unless otherwise noted.) (Note 2) GND A MAX328M MAX328C/E MAX329M MAX329C/E PARAMETER SYMBOL CONDITIONS UNITS MIN TYP MAX MIN TYP MAX SWITCH Analog Signal Range V -15 +15 -15 +15 V ANALOG V = 10V, D Seq. each 1.5 2.5 1.5 3.5 I = 100A S Drain-Source switch on, R k DS(ON) On-Resistance V = 0.8V, AL V = -10V, D 1.0 2.5 1.0 3.5 V = 2.4V AH I = 100A S Greatest Change in R = DS(ON) Drain-Source On- R Max - R Min R DS(ON) DS(ON) 2 2 % DS(ON) Resistance Between ( ) R Ave DS(ON) Channels V = 10V, V = -10V 0.1 10 0.1 10 Source Off-Leakage S D I V = 0V pA S(OFF) EN Current (Note 3) V = -10V, V = 10V 0.3 10 0.3 10 S D V = 10V, V = -10V 0.3 10 0.3 10 D S Drain Off- MAX328 V = -10V, V = 10V 1.0 10 1.0 10 Leakage D S I V = 0V pA D(OFF) EN Current V = 10V, V = -10V 0.3 10 0.3 10 D S MAX329 (Note 3) V = -10V, V = 10V 0.5 10 0.5 10 D S V (all) = V = 10V 3.0 10 3.0 10 S D Drain On- Seq. each MAX328 V (all) = V = -10V 2.0 10 2.0 10 Leakage S D switch on, I pA D(ON) Current V = 0.8V, V (all) = V = 10V AL 1.5 10 1.5 10 S D MAX329 (Note 3) V = 2.4V AH V (all) = V = -10V 1.0 10 1.0 10 S D 2 MAX328/MAX329