MAX349

Serially Controlled, Low-Voltage, 8-Channel Dual 4-Channel Multiplexers


Please check latest availability status for a specific part variant.

Description

The MAX349/MAX350 are 8-channel and dual 4-channel serially controlled multiplexers (muxes). These muxes conduct equally well in either direction. On-resistance (100Ω max) is matched between switches to 16Ω max and is flat (10Ω max) over the specified signal range.

These CMOS devices can operate continuously with dual power supplies ranging from ±2.7V to ±8V or a single supply between +2.7V and +16V. Each mux can handle rail-to-rail analog signals. The off-leakage current is only 0.1nA at +25°C or 5nA at +85°C.

Upon power-up, all switches are off and the internal shift registers are reset to zero.

The serial interface is compatible with SPI™/QSPI™ and Microwire™. Functioning as a shift register, it allows data (at DIN) to be clocked in synchronously with the rising edge of clock (SCLK). The shift register's output (DOUT) enables several MAX349s or MAX350s to be daisy chained.

All digital inputs have 0.8V or 2.4V logic thresholds, ensuring both TTL and CMOS-logic compatibility when using ±5V supplies or a single +5V supply.
MAX349, MAX350: Pin Configuration MAX349, MAX350: Pin Configuration Enlarge+

Key Features

  • SPI/QSPI, Microwire-Compatible Serial Interface
  • 8 Separately Controlled SPST Switches
  • Single 8-to-1 Mux (MAX349)
  • Dual 4-to-1 Mux (MAX350)
  • 100Ω Signal Paths with ±5V Supplies
  • Rail-to-Rail Signal Handling
  • Asynchronous RESET Input
  • ±2.7V to ±8V Dual Supplies
  • +2.7V to +16V Single Supply
  • > 2kV ESD Protection per Method 3015.7
  • TTL/CMOS-Compatible Inputs (with +5V or ±5V Supplies)

Applications/Uses

  • Audio-Signal Routing
  • Automated Test Equipment (ATE)
  • Avionics
  • Industrial and Process Control Systems
  • Networking
  • Serial Data-Acquisition Systems
Part NumberFunctionsConfig.ChannelsVSUPPLY (Single)
(V)
VSUPPLY (Single)
(V)
VSUPPLY (Dual)
(±V)
VSUPPLY (Dual)
(±V)
RON
(Ω)
IL(OFF)
(nA)
tON
(ns)
tOFF
(ns)
QINJECTION
(pC)
CON
(pF)
COFF
(pF)
Package/PinsBudgetary
Price
minmaxminmaxmaxmaxmaxmaxSee Notes
MAX349 Mux8-to-112.7162.781000.12751501082
PDIP/18
SOIC (W)/18
SSOP/20
$4.31 @1k
MAX350 4-to-12
PDIP/18
SOIC (W)/18
SSOP/20
See All Switches and Multiplexers (Mid and High Voltage) (299)
Pricing 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 and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Quality and Environmental Data

Request Reliability Report for: MAX349 
Lead-Free Package Tin (Sn) Whisker Reports

CAD Symbols and Footprints

  • MAX349CAP+
  • MAX349CAP+T
  • MAX349CPN+
  • MAX349EAP+
  • MAX349EAP+T
  • MAX349EPN+
  • MAX349EWN+
  • MAX349EWN+T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

    Quality Management System >
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