MAX4540
ObsoleteLow-Voltage, Single 8 to 1 and 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
- RON: 100Ω max
- RON Matching Between Channels: 6Ω max
- Charge Injection: 5pC max
- Low 0.1nA Off Leakage Current
- Small 20-Pin SSOP/SO/DIP Packages
The MAX4539/MAX4540 low-voltage, CMOS 8-channel (MAX4539) and dual 4-channel (MAX4540) multiplexers 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 1/2V+ 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 MAX4539/MAX4540 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 ±5V or a single +5V supply. Protection diodes at all inputs provide an ESD rating >2kV.
The MAX4539/MAX4540 operate from a single +2.7V to +12V supply, or from dual supplies of ±2.7V to ±6V. On-resistance (100Ω max) is matched between switches to 6Ω max. Each switch can handle rail-to-rail analog signals. The off leakage current is 0.1nA at TA = +25°C and 2nA at TA = +85°C.
The MAX4539/MAX4540 are available in small 20-pin DIP, SO, and SSOP packages.
Applications
- Audio-Signal Routing
- Avionics
- Battery-Powered Applications
- 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 |
|---|---|---|---|
| MAX4540EAP+ | 20-SSOP-5.3_MM |
This is the most up-to-date revision of the Data Sheet.
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