MAX4578/MAX4579 19-1396 Rev 0 10/98 High-Voltage, Single 8-to-1/ Dual 4-to-1 Cal-Multiplexers General Description Features The MAX4578/MAX4579 are high-voltage, 8-channel On-Chip Gain and Offset Divider Networks CMOS multiplexers. The MAX4578 and dual 4-channel Provide 15-Bit Accurate Output Ratios MAX4579 are ideal for precision ADC calibration and On-Chip V+ to GND and V+ to V- Divider Networks system self-monitoring applications. These calibration multiplexers (cal-muxes) have precision resistor- Provide 8-Bit Accurate Output Ratios dividers to generate accurate voltage ratios from an 350W (max) R ON input reference voltage. The reference ratios include 12W (max) R Matching Between Channels 15/4096 and 4081/4096 of the external reference volt- ON age, accurate to 15 bits, and 1/2(V+) and 5/8(V+ - V-), 10pC (max) Charge Injection accurate to 8 bits. The external reference voltage as well as ground can also be switched to the output. The Guaranteed 20pA Off-Leakage Current MAX4578/MAX4579 have enable inputs and address Rail-to-Rail Signal Handling latching. All digital inputs have 0.8V and 2.4V logic thresholds, ensuring both TTL- and CMOS-logic com- Small 20-Pin SSOP, SO, DIP Packages patibility when using a single +12V or dual 15V sup- plies. Protection diodes at all inputs provide >2kV ESD Ordering Information rating. The MAX4578/MAX4579 operate from a single +4.5V to PART TEMP. RANGE PIN-PACKAGE +36V supply or from dual supplies of 4.5V to 20V. MAX4578CAP 0C to +70C 20 SSOP On-resistance (350W max) is matched between switch- MAX4578CWP 0C to +70C 20 Wide SO es to 15W max. Each switch can handle Rail-to-Rail MAX4578CPP 0C to +70C 20 Plastic DIP analog signals. The off-leakage current is 20pA at T = A MAX4578EAP -40C to +85C 20 SSOP +25C and 1.25nA at T = +85C. A MAX4578EWP -40C to +85C 20 Wide SO The MAX4578/MAX4579 are available in small 20-pin MAX4578EPP -40C to +85C 20 Plastic DIP SSOP, SO, and DIP packages. Ordering Information continued at end of data sheet. Pin Configurations/ Functional Diagrams Applications V+ Data-Acquisition Systems 1 20 LATCH GND 2 19 Test Equipment EN V- MAX4579 3 LOGIC 18 CAL 4 DECODER Avionics 17 REFHI A0 16 Audio Signal Routing A1 15R Networking 4081R 4081R 15R 5 15 REFLO COMB 6 COMA 7 14 NO1A NO4B 8 13 NO2A NO3B 12 9 NO3A NO2B 10 11 NO4A NO1B Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. MAX4578 appears at end of data sheet. Maxim Integrated Products 1 For free samples & the latest literature: High-Voltage, Single 8-to-1/ Dual 4-to-1 Cal-Multiplexers ABSOLUTE MAXIMUM RATINGS (Voltage Referenced to GND) Continuous Power Dissipation (T = +70C) A V+...........................................................................-0.3V to +44V SSOP (derate 8mW/C above +70C) ..........................640mW V- ............................................................................-44V to +0.3V Wide SO (derate 8mW/C above +70C)......................800mW V+ to V-...................................................................-0.3V to +44V Plastic DIP (derate 10.53mW/C above +70C) ...........842mW CAL, LATCH A , EN, NO , COM , REFHI, Operating Temperature Ranges REFLO (Note 1) ................................(V- - 0.3V) to (V+ + 0.3V) MAX4578C P/MAX4579C P................................0C to +70C Continuous Current (any terminal)....................................30mA MAX4578E P/MAX4579E P .............................-40C to +85C Peak Current, NO or COM Storage Temperature Range .............................-65C to +160C (pulsed at 1ms, 10% duty cycle max).........................100mA Lead Temperature (soldering, 10sec) .............................+300C Note 1: Signals on NO , COM , EN, LATCH, CAL, A exceeding V+ or V- are clamped by internal diodes. Limit forward current to maximum current ratings. 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 CHARACTERISTICSDual 15V Supplies (V+ = +15V 10%, V- = -15V 10%, logic levels = 2.4V and 0.8V, T = T to T , unless otherwise noted. Typical values are A MIN MAX at T = +25C.) (Note 2) A -0.05 0.005 0.05 PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS SWITCH V , COM Analog Signal Range (Note 3) V- V+ V V NO T = +25C 220 350 I = 0.2mA, V = 10V, A COM NO On-Resistance R DS(ON) V+ = 13.5V, V- = -13.5V T = T to T 475 A MIN MAX On-Resistance Matching T = +25C 4 12 A I = 0.2mA, V = 10V, COM NO Between Channels R ON V+ = 13.5V, V- = -13.5V T = T to T 15 A MIN MAX (Note 4) T = +25C -0.02 0.001 0.02 NO Off-Leakage Current V = 14V, V = 14V, A NO + COM I nA NO (OFF) (Note 5) V+ = 16.5V, V- = -16.5V T = T to T -1.25 1.25 A MIN MAX T = +25C -0.05 0.005 0.05 A V = 14V, COM MAX4578 T = T to T -6.5 6.5 A MIN MAX COM Off-Leakage V = 14V, NO + I nA COM (OFF) Current (Note 5) V+ = 16.5V, T = +25C -0.05 0.005 0.05 A MAX4579 V- = -16.5V T = T to T -3.25 3.25 A MIN MAX T = +25C -0.05 0.006 0.05 A V = 14V, COM MAX4578 T = T to T -6.5 6.5 COM On-Leakage V = 14V, A MIN MAX NO I nA COM (ON) Current (Note 5) V+ = 16.5V, T = +25C -0.05 0.008 0.05 A MAX4579 V- = -16.5V T = T to T -3.25 3.25 A MIN MAX 2 MAX4578/MAX4579