MAX4508, MAX4509 출력 클램프가 내장된 오류 보호, 고전압 단일 8:1/듀얼 4:1 멀티플렉서

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The MAX4508/MAX4509 are 8-to-1 and dual 4-to-1 fault-protected multiplexers that are pin compatible with the industry-standard DG508/DG509. The MAX4508/MAX4509 operate with dual supplies of ±4.5V to ±20V or a single supply of +9V to +36V. These multiplexers feature fault-protected inputs, rail-to-rail signal handling capability, and overvoltage clamping at 150mV beyond the rails.

Both parts offer ±40V overvoltage protection with supplies off and ±25V protection with supplies on. On-resistance is 400Ω max and is matched between channels to 15Ω max. All digital inputs have TTL logic thresholds, ensuring both TTL and CMOS logic compatibility when using a single +12V supply or dual ±15V supplies.

주요기능

애플리케이션/용도

±40V Fault Protection with Power Off
±25V Fault Protection with ±15V Supplies
Rail-to-Rail Signal Handling
No Power-Supply Sequencing Required
All Channels Off with Power Off
Output Clamped to Appropriate Supply Voltage During Fault Condition
1kΩ Output Clamp Resistance During Overvoltage
400Ω max On-Resistance
20ns Fault-Response Time
±4.5V to ±20V Dual Supplies
+9V to +36V Single Supply
TTL/CMOS-Compatible Logic Inputs

	항공
	데이터 수집 시스템
	산업용 및 프로세스 제어
	리던던시/백업 시스템
	신호 라우팅

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)

Fault Protection (±V)

RoHS Available

Package

Price^**

MAX4508

8:1 Mux

4.5

400

275

200

•	Chip Enable

•	Fault Protected

Yes

Ceramic DIP/16
PDIP/16
SOIC/16

$2.87 @ 1k

MAX4509

4:1 Mux

$2.87 @ 1k

See All Switches and Multiplexers (Mid Voltage) (286)

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.