SN74CB3Q3125 Quadruple FET 2.5-V/3.3-V Low-Voltage High-Bandwidth Bus Switch | TI.com

SN74CB3Q3125
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Quadruple FET 2.5-V/3.3-V Low-Voltage High-Bandwidth Bus Switch

 

Recommended alternative parts

  • TMUX1511  -  2-Ω RON, 1.5-GHz analog switch with 1.8-V compatible control logic

Description

The SN74CB3Q3125 device is a high-bandwidth FET bus switch that uses a charge pump to elevate the gate voltage of the pass transistor, thus providing a low and flat ON-state resistance (ron). The low and flat ON-state resistance allows for minimal propagation delay and supports rail-to-rail switching on the data input/output (I/O) ports. The SN74CB3Q3125 device also features low data I/O capacitance to minimize capacitive loading and signal distortion on the data bus.

Features

  • High-Bandwidth Data Path (up to 500 MHz(1))
  • 5-V Tolerant I/Os With Device Powered Up
    or Powered Down
  • Low and Flat ON-State Resistance (ron)
    Characteristics Over Operating Range
    (ron = 3 Ω Typ)
  • Rail-to-Rail Switching on Data I/O Ports
    • 0-V to 5-V Switching With 3.3-V VCC
    • 0-V to 3.3-V Switching With 2.5-V VCC
  • Bidirectional Data Flow With Near-Zero
    Propagation Delay
  • Low Input and Output Capacitance Minimizes
    Loading and Signal Distortion
    (Cio(OFF) = 4 pF Typ)
  • Fast Switching Frequency (fOE = 20 MHz Max)
  • Data and Control Inputs Provide Undershoot
    Clamp Diodes
  • Low Power Consumption
    (ICC = 0.3 mA Typ)
  • VCC Operating Range From 2.3 V to 3.6 V
  • Data I/Os Support 0-V to 5-V Signaling Levels
    (0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5 V)
  • Control Inputs Can Be Driven by TTL,
    5-V, or 3.3-V CMOS Outputs
  • Ioff Supports Partial-Power-Down Mode Operation
  • Latch-Up Performance Exceeds 100 mA Per
    JESD 78, Class II
  • ESD Performance Tested Per JESD 22
    • 2000-V Human-Body Model
      (A114-B, Class II)
    • 1000-V Charged-Device Model (C101)
  • Supports Both Digital and Analog Applications:
    USB Interface, Differential Signal Interface, Bus
    Isolation, Low-Distortion Signal Gating

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)
SN74CB3Q3125 Order now 1:1 SPST     4     4     500     Catalog     -40 to 85     SSOP | 16
TSSOP | 14
TVSOP | 14
VQFN | 14    
64     2000     Powered-off protection
Supports JTAG signals
Supports SPI signals
Supports input voltage beyond supply    
1     8    
SN74CBT3125 Order now 1:1 SPST     4     5     200     Catalog     -40 to 85     SOIC | 14
SSOP | 14
SSOP | 16
TSSOP | 14
TVSOP | 14
VQFN | 14    
128       Supports JTAG signals
Supports SPI signals    
1      
SN74CBT3126 Samples not available 1:1 SPST     4     5     200     Catalog     -40 to 85     SOIC | 14
SSOP | 14
SSOP | 16
TSSOP | 14
VQFN | 14    
128       Supports JTAG signals
Supports SPI signals    
1      
SN74CBTLV3125 Order now 1:1 SPST     4     5     200     Catalog     -40 to 85     SOIC | 14
SSOP | 16
TSSOP | 14
TVSOP | 14
VQFN | 14    
128       Powered-off protection
Supports JTAG signals
Supports SPI signals    
1      
SN74CBTLV3126 Samples not available 1:1 SPST     4     5     200     Catalog     -40 to 85     SOIC | 14
SSOP | 16
TSSOP | 14
TVSOP | 14
VQFN | 14    
128       Powered-off protection
Supports JTAG signals
Supports SPI signals    
1     2.5    
TMUX1511 Order now 1:1 SPST     4     2     3000     Catalog     -40 to 125     TSSOP | 14
UQFN | 16    
25     37     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     3.3