MAX4578
ObsoleteHigh-Voltage, Single 8-to-1/Dual 4-to-1 Cal Multiplexers
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Part Details
- On-Chip Gain and Offset Divider Networks Provide 15-Bit Accurate Output Ratios
- On-Chip V+ to GND and V+ to V- Divider Networks Provide 8-Bit Accurate Output Ratios
- 350Ω (max) RON
- 12Ω (max) RON Matching Between Channels
- 10pC (max) Charge Injection
- Guaranteed 20pA Off-Leakage Current
- Rail-to-Rail Signal Handling
- Small 20-Pin SSOP, SO, DIP Packages
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 voltage, 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 compatibility when using a single +12V or dual ±15V supplies. 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 (350Ω max) is matched between switches to 15Ω 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
- Audio-Signal Routing
- Avionics
- Data Acquisition
- Networking
- Test Equipment
Documentation
Data Sheet 1
Design Note 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX4578CAP+ | 20-SSOP-5.3_MM |
This is the most up-to-date revision of the Data Sheet.
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