MAX358
PRODUCTIONFault-Protected Analog Multiplexers
- Part Models
- 7
- 1ku List Price
- Starting From $6.56
Overview
- Improved 2nd Source (See "Maxim Advantage" on 3rd and 5th page)
- All Switches Off with Power Supplies Off
- On Channel Turns OFF If Overvoltage Occurs
- Only Nanoamperes of Input Current under All Fault Conditions
- Latchup-proof Construction
- Operates from ±4.5 to ±18V Supplies
- All Digital Inputs are TTL and CMOS Compatible
Maxim's Hl-508A and MAX358 are 8 channel single-ended (1 of 8) multiplexers with fault protection. Maxim's Hl-509A and MAX359 are 4 channel differential (2 of 8) multiplexers with fault protection. Using a series N-channel, P-channel, N-channel structure, these multiplexers provide significantly improved fault protection. If the power supplies to the Maxim fault-protected multiplexer are inadvertently turned off while input voltages are still applied, a// channels in the multiplexer are turned off, and only a few nanoamperes of leakage current will flow into the inputs. This protects not only the multiplexer and the circuitry driven by the multiplexer, but also protects the sensors or signal sources which drive the multiplexer.
The Maxim series N-channel, P-channel, N-channel protection structure has two significant advantages over the simple current limiting protection scheme of the first generation fault protected multiplexers. First, the Maxim protection scheme limits fault currents to nanoamp leakage values rather than many milliamperes. This prevents damage to sensors or other sensitive signal sources. Second, the Maxim fault-protected multiplexers can withstand a continuous±35V overvoltage, unlike the first generation which has a continuous overvoltage limitation of about ±10V imposed by power dissipation considerations.
All digital inputs have logic thresholds of 0.8V and 2.4V, ensuring both TTL and CMOS compatibility without requiring pullup resistors. Break-before-make operation is guaranteed. Power supply currents have been reduced and typical power dissipation is less than 2 milliwatts.
APPLICATIONS
Documentation
Data Sheet 2
Reliability Data 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 |
|---|---|---|---|
| MAX358CPE+ | Plastic Dual-In-Line, Narrow (0.3in) | ||
| MAX358CWE+ | Small-Outline IC, Wide (0.3in) | ||
| MAX358CWE+T | Small-Outline IC, Wide (0.3in) | ||
| MAX358EPE+ | Plastic Dual-In-Line, Narrow (0.3in) | ||
| MAX358EWE+ | Small-Outline IC, Wide (0.3in) | ||
| MAX358EWE+T | Small-Outline IC, Wide (0.3in) | ||
| MAX358MJE/883B | Ceramic Dual-In-Line, Narrow (0.3in) |
This is the most up-to-date revision of the Data Sheet.
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