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.
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MAX4578-MAX4579 Data Sheet | MAX4578-MAX4579.pdf |
Part Number | Functions | Config. | Channels | VSUPPLY (Single) (V) | VSUPPLY (Single) (V) | VSUPPLY (Dual) (±V) | VSUPPLY (Dual) (±V) | RON (Ω) | IL(OFF) (nA) | tON (ns) | tOFF (ns) | QINJECTION (pC) | CON (pF) | COFF (pF) | Package/Pins | Budgetary Price |
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min | max | min | max | max | max | min | max | See Notes | ||||||||
MAX4578 | Mux | 8-to-1 | 1 | 4.5 | 36 | 4.5 | 20 | 350 | 0.05 | 400 | 220 | 3.5 | 20 | 3 | PDIP(N)/20 SOIC(W)/20 SSOP/20 | $3.86 @1k |
MAX4579 | 4-to-1 | 2 | PDIP(N)/20 SOIC(W)/20 SSOP/20 | - | ||||||||||||
Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
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MAX4578C/D | No Longer Available | DICE SALES,;NA pin;DICE; | 0°C to +70°C | See data sheet | |
MAX4578CAP | No Longer Available | MAX4578CAP+ | SSOP,;20 pin;57.9 mm² | 0°C to +70°C | No |
MAX4578CAP+ | Active | SSOP,;20 pin;57.9 mm² | 0°C to +70°C | Lead Free | |
MAX4578CAP-T | No Longer Available | SSOP;20 pin | 0°C to +70°C | See data sheet | |
MAX4578CPP | Last Time Buy | PDIP(N),;20 pin;217.1 mm² | 0°C to +70°C | No | |
MAX4578CWP | No Longer Available | MAX4578CWP+ | SOIC(W),;20 pin;138.5 mm² | 0°C to +70°C | No |
MAX4578CWP+ | Active | SOIC(W),;20 pin;138.5 mm² | 0°C to +70°C | Lead Free | |
MAX4578CWP+T | No Longer Available | W.SO; | 0°C to +70°C | See data sheet | |
MAX4578CWP-T | No Longer Available | W.SO; | 0°C to +70°C | See data sheet | |
MAX4578EAP | No Longer Available | SSOP,;20 pin;57.9 mm² | -40°C to +85°C | No | |
Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
MAX4578EAP-T | No Longer Available | SSOP;20 pin | -40°C to +85°C | See data sheet | |
MAX4578EPP | No Longer Available | PDIP(N),;20 pin;217.1 mm² | -40°C to +85°C | No | |
MAX4578EWP | No Longer Available | SOIC(W),;20 pin;138.5 mm² | -40°C to +85°C | No | |
MAX4578EWP-T | No Longer Available | W.SO; | -40°C to +85°C | See data sheet |