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MAX4578CWP Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX4578CWP Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 20 page For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 1-800-835-8769. General Description The MAX4578/MAX4579 are high-voltage, 8-channel CMOS multiplexers. The MAX4578 and dual 4-channel MAX4579 are ideal for precision ADC calibration and system self-monitoring applications. These calibration multiplexers (cal-muxes) have precision resistor- dividers to generate accurate voltage ratios from an input reference voltage. The reference ratios include 15/4096 and 4081/4096 of the external reference volt- age, accurate to 15 bits, and 1/2(V+) and 5/8(V+ - V-), accurate to 8 bits. The external reference voltage as well as ground can also be switched to the output. The MAX4578/MAX4579 have enable inputs and address latching. All digital inputs have 0.8V and 2.4V logic thresholds, ensuring both TTL- and CMOS-logic com- patibility when using a single +12V or dual ±15V sup- plies. Protection diodes at all inputs provide >2kV ESD rating. The MAX4578/MAX4579 operate from a single +4.5V to +36V supply or from dual supplies of ±4.5V to ±20V. On-resistance (350 Ω max) is matched between switch- es to 15 Ω max. Each switch can handle Rail-to-Rail® analog signals. The off-leakage current is 20pA at TA = +25°C and 1.25nA at TA = +85°C. The MAX4578/MAX4579 are available in small 20-pin SSOP, SO, and DIP packages. Applications Data-Acquisition Systems Test Equipment Avionics Audio Signal Routing Networking Features o On-Chip Gain and Offset Divider Networks Provide 15-Bit Accurate Output Ratios o On-Chip V+ to GND and V+ to V- Divider Networks Provide 8-Bit Accurate Output Ratios o 350 Ω (max) RON o 12 Ω (max) RON Matching Between Channels o 10pC (max) Charge Injection o Guaranteed 20pA Off-Leakage Current o Rail-to-Rail Signal Handling o Small 20-Pin SSOP, SO, DIP Packages High-Voltage, Single 8-to-1/ Dual 4-to-1 Cal-Multiplexers ________________________________________________________________ Maxim Integrated Products 1 CAL A0 A1 18 17 LATCH EN 20 19 16 LOGIC DECODER GND V+ V- REFHI REFLO COMA NO1A NO2A NO3A NO4A NO4B COMB NO3B NO2B NO1B 5 1 2 3 4 6 15 14 13 12 11 7 8 9 10 4081R 15R 4081R 15R MAX4579 19-1396; Rev 0; 10/98 PART MAX4578CAP 0°C to +70°C TEMP. RANGE PIN-PACKAGE 20 SSOP Ordering Information continued at end of data sheet. Pin Configurations/ Functional Diagrams Ordering Information MAX4578CWP 0°C to +70°C 20 Wide SO MAX4578CPP 0°C to +70°C 20 Plastic DIP MAX4578EAP -40°C to +85°C 20 SSOP MAX4578EWP -40°C to +85°C 20 Wide SO MAX4578EPP -40°C to +85°C 20 Plastic DIP Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. MAX4578 appears at end of data sheet. |
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