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MAX4540
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MFG:MAXIM Package Cooled:CDIP D/C:8

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Part Number: MAX4540

MFG: MAXIM

Package Cooled: CDIP

D/C: 8

Description: The MAX4539/MAX4540 low-voltage, CMOS 8-channel (MAX4539) and dual 4-channel (MAX4540) multiplexers are ideal for preci...

MAX4540 General Description

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.

MAX4540 Maximum Ratings

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

MAX4540 Features

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

MAX4540 Typical Application

Battery-Operated EquipmentAvionics Data-Acquisition SystemsAudio-Signal Routing Test EquipmentNetworking

MAX4540 Connection Diagram

MAX4540 datasheet

MAX4540
PDF/DataSheet Download

Datasheet: MAX4540
File Size: 253250 KB
Manufacturer: Maixm
Click here to Download

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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...

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