MAX398, MAX399 Precision, 8-Channel/Dual 4-Channel, Low-Voltage, CMOS Analog Multiplexers

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The MAX398/MAX399 precision, monolithic, CMOS analog multiplexers (muxes) offer low on-resistance (less than 100Ω), which is matched to within 6Ω between channels and remains flat over the specified analog signal range (11Ω max). They also offer low leakage over temperature (NO off-leakage current less than 2.5nA at +85°C) and fast switching speeds (transition time less than 250ns). The MAX398 is an 8-channel device, and the MAX399 is a dual 4-channel device.

The MAX398/MAX399 are fabricated with Maxim's low-voltage silicon-gate process. Design improvements yield extremely low charge injection (less than 5pC) and guarantee electrostatic discharge protection (ESD) greater than 2000V.

These muxes operate with a single +3V to +15V supply or bipolar ±3V to ±8V supplies, while retaining CMOS-logic input compatibility and fast switching. CMOS inputs provide reduced input loading. The MAX398/MAX399 are pin compatible with the industry-standard DG408, DG409, DG508A, and DG509A.

Key Features

Applications/Uses

Pin Compatible with Industry-Standard DG408/DG409/DG508A/DG509A
Guaranteed On-Resistance Match Between Channels (< 6Ω)
Low On-Resistance (< 100Ω)
Guaranteed Flat On-Resistance over Signal Range (< 11Ω)
Guaranteed Low Charge Injection (< 5pC)
NO Off-Leakage Current < 1nA at +85°C
COM Off-Leakage Current < 2.5nA at +85°C
ESD Protection > 2000V
+3V to +15V Single-Supply Operation ±3V to ±8V Bipolar-Supply Operation
Low Power Consumption (< 300µW)
Rail-to-Rail Signal Handling
TTL/CMOS-Logic Compatible

	Audio-Signal Routing
	Automated Test Equipment (ATE)
	Battery-Powered Applications
	Communication Systems
	Guidance and Control Systems
	Heads-Up Displays
	Low-Voltage Data Acquisition
	Military Radios
	PBX, PABX
	Sample-and-Hold Circuits

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

Industry Qualified

Package

Price^**

MAX398

8:1 Mux

100

150

•	Chip Enable

Yes

MIL-STD-883B

Ceramic DIP/16
PDIP/16
QSOP/16
SOIC/16

$1.83 @ 1k

MAX399

4:1 Mux

$1.83 @ 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.