TMUX1574 Low-capacitance, 2:1 (SPDT) 4-channel, powered-off protection switch with 1.8-V logic | TI.com

TMUX1574
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Low-capacitance, 2:1 (SPDT) 4-channel, powered-off protection switch with 1.8-V logic

 

Sample availability

DYY package is in preview. Preproduction samples are available (PTMUX1574DYYR).  Request now

PW package is fully released. Production samples are available (TMUX1574PWR).  Order now

RSV package is fully released. Production samples are available (TMUX1574RSVR).  Order now

Description

The TMUX1574 is a complementary metal-oxide semiconductor (CMOS) switch. The TMUX1574 offers 2:1 SPDT switch configuration with 4-channels. Wide operating supply of 1.5 V to 5.5 V allows for use in a broad array of applications from servers and communication equipment to industrial applications. The device supports bidirectional analog and digital signals on the source (SxA, SxB) and drain (Dx) pins and can pass signals above supply up to VDD x 2, with a maximum input/output voltage of 5.5 V.

Powered-off Protection up to 3.6 V on the signal path of the TMUX1574 provides isolation when the supply voltage is removed (VDD = 0 V). Without this protection feature, switches can back-power the supply rail through an internal ESD diode and cause potential damage to the system.

Fail-Safe Logic circuitry allows voltages on the logic control pins to be applied before the supply pin, protecting the device from potential damage. All control inputs have 1.8 V logic compatible thresholds, ensuring both TTL and CMOS logic compatibility when operating in the valid supply voltage range. Integrated pull down resistor on the logic pins removes external components to reduce system size and cost.

Features

  • Wide supply range: 1.5 V to 5.5 V
  • Low on-capacitance: 7.5 pF
  • Low on-resistance: 2 Ω
  • High bandwidth: 2 GHz
  • -40°C to +125°C operating temperature
  • 1.8 V Logic Compatible
  • Supports Input Voltage Beyond Supply
  • Integrated Pull Down Resistor on Logic Pins
  • Bidirectional Signal Path
  • Fail-Safe Logic
  • Powered-off Protection up to 3.6 V Signals
    • Pinout compatible to SN74CBTLV3257

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Parametrics

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Part number Order Configuration Number of channels (#) Ron (Typ) (Ohms) Bandwidth (MHz) Rating Operating temperature range (C) Package Group Input/output continuous current (Max) (mA) Supply current (Typ) (uA) Features ON-state leakage current (Max) (µA) CON (Typ) (pF)
TMUX1574 Order now 2:1 SPDT     4     2     2000     Catalog     -40 to 125     SOT-23-THN | 16
TSSOP | 16
UQFN | 16    
25     40     1.8-V compatible control inputs
Fail-safe logic
Integrated pulldown resistor on logic pin
Powered-off protection
Supports JTAG signals
Supports SPI signals
Supports input voltage beyond supply    
0.05     7.5    
SN74CB3Q3257 Order now 2:1 SPDT     4     4     500     Catalog     -40 to 85     SSOP | 16
TSSOP | 16
TVSOP | 16
VQFN | 16    
64     250     Powered-off protection
Supports JTAG signals
Supports SPI signals
Supports input voltage beyond supply    
  10.5    
SN74CBT3257 Order now 2:1 SPDT     4     5     200     Catalog     -40 to 85     SOIC | 16
SSOP | 16
SSOP | 16
TSSOP | 16
VQFN | 16    
128       Supports JTAG signals
Supports SPI signals    
1      
SN74CBTLV3257 Order now 2:1 SPDT     4     5     200     Catalog     -40 to 85     SOIC | 16
SSOP | 16
TSSOP | 16
TVSOP | 16
UQFN | 16
VQFN | 16    
128       Powered-off protection
Supports JTAG signals
Supports SPI signals    
1