| 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 R ON : 100Ω max R ON 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 selfmonitoring 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 T A = +25°C and 2nA at T A = +85°C. The MAX4539/MAX4540 are available in small 20-pin DIP, SO, and SSOP packages. |
| Battery-Operated EquipmentAvionics Data-Acquisition SystemsAudio-Signal Routing Test EquipmentNetworking |
| V+ to GND................................................................-0.3V to +13V V- to GND.................................................................-13V to +0.3V V+ to V-...................................................................-0.3V to +13V CAL, LATCH, A_, EN, NO_, COM_, REFHI, REFLO (Note 1)...........................(V- - 0.3V) to (V+ + 0.3V) Continuous Current (any terminal)...................................±20mA Peak Current, NO_ or COM_ (pulsed at 1ms, 10% duty cycle max)...............................±40mA Continuous Power Dissipation (T A = +70°C) SSOP (derate 8mW/°C above +70°C)............................640mW Wide SO (derate 8mW/°C above +70°C).......................800mW Plastic DIP (derate 10.53mW/°C above +70°C).............842mW Operating Temperature Ranges MAX4539C_P/MAX4540C_P..................................0°C to +70°C MAX4539E_P/MAX4540E_P...............................-40°C to +85°C Storage Temperature Range..........................-65°C to +160°C Lead Temperature (soldering, 10sec)............................+300°C |
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| 厂家 | Maixm |
| 简要 描述 |
Low-Voltage, Single 8-to-1 and Dual 4-to-1 Cal-Multiplexers |
| A | B | C | D | E | F | G | H | I | J |
| K | L | M | N | O | P | Q | R | S | T |
| U | V | W | X | Y | Z | 0 | 1 | 2 | 3 |
| 4 | 5 | 6 | 7 | 8 | 9 |
| MAX668 |
| MAX669 |
| MAX1201 |
| MAX3885 |
| MAX4540 |
| MAX1271 |
| MAX6195 |
| MAX6198 |
