MAX4539, MAX4540 低电压、单8选1及双4选1，带有校准的多路复用器

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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 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 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.

关键特性

应用/使用

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

	音频信号切换
	航空电子
	电池供电应用
	数据采集
	网络
	测试设备

Key Specifications: Switches and Multiplexers (Mid Voltage)

Part Number

Configuration

Number of Channels

V_SUPPLY, Single (min) (V)

V_SUPPLY, Single (max) (V)

V_SUPPLY, Dual (min) (±V)

V_SUPPLY, Dual (max) (±V)

R_ON (max) (Ω)

I_{L (OFF)} (max) (nA)

t_ON (max) (nS)

t_OFF (max) (nS)

Q_INJECTION (pC)

C_ON (pF)

C_OFF (pF)

Features

V_ISO, Off-Isolation (dB)

V_CT, Crosstalk (dB)

ΔR_ON (max) (Ω)

R_FLAT(ON) (max) (Ω)

RoHS Available

Package

Smallest Available Package (max w/pins) (mm²)

Price^**

MAX4539

8:1 Mux

2.7

100

0.1

115

100

•	Address Latch

•	Calibration Multiplexer

•	Chip Enable

PDIP/20
SOIC/20
SSOP/20

$3.04 @ 1k

MAX4540

4:1 Mux

Yes

$3.34 @ 1k

See All Switches and Multiplexers (Mid Voltage) (284)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.