AM26LV31 Low-Voltage High-Speed Quadruple Differential Line Driver |


Low-Voltage High-Speed Quadruple Differential Line Driver



The AM26LV31C and AM26LV31I are BiCMOS quadruple differential line drivers with 3-state outputs. They are designed to be similar to TIA/EIA-422-B and ITU Recommendation V.11 drivers with reduced supply-voltage range.

The devices are optimized for balanced-bus transmission at switching rates up to 32 MHz. The outputs have very high current capability for driving balanced lines such as twisted-pair transmission lines and provide a high impedance in the power-off condition. The enable function is common to all four drivers and offers the choice of active-high or active-low enable inputs. The AM26LV31C and AM26LV31I are designed using Texas Instruments proprietary LinIMPACT-C60™ technology, facilitating ultra-low power consumption without sacrificing speed. These devices offer optimum performance when used with the AM26LV32 quadruple line receivers.

The AM26LV31C is characterized for operation from 0°C to 70°C. The AM26LV31I is characterized for operation from –45°C to 85°.C


  • Switching Rates up to 32 MHz
  • Operate From a Single 3.3-V Supply
  • Propagation Delay Time: 8 ns Typical
  • Pulse Skew Time: 500 ps Typical
  • High Output-Drive Current: ±30 mA
  • Controlled Rise and Fall Times: 3 ns Typical
  • Differential Output Voltage With 100-Ω
    Load: 1.5 V Typical
  • Ultra-Low Power Dissipation
    • dc, 0.3 mW Maximum
    • 32 MHz All Channels (No Load), 385 mW Typical
  • Accept 5-V Logic Inputs With 3.3-V Supply
  • Low-Voltage Pin-to-Pin Compatible Replacement for AM26C31, AM26LS31, MB571
  • High Output Impedance in Power-Off Condition
  • Driver Output Short-Protection Circuit
  • Package Options Include Plastic Small-Outline (D, NS) Packages

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Parametrics Compare all products in RS-485/RS-422

Supply Voltage(s) (Nom) (V)
Number of TX
Number of RX
Signaling Rate (Max) (Mbps)
IEC 61000-4-2 contact (+/- kV)
Fault protection (V)
Number of nodes
Common mode range
ICC (Max) (mA)
Operating temperature range (C)
Package Group
Approx. price (US$)
AM26LV31 AM26LV32
3.3     3.3    
4     0    
0     4    
Half     Half    
32     32    
None     None    
None     0.5    
-7 to 7     -12 to 12    
32     32    
-7 to 7     -0.3 to 5.5    
0.1     17    
No     No    
Catalog     Catalog    
-45 to 85
0 to 70    
-40 to 85
0 to 70    
SOIC | 16
SO | 16    
SOIC | 16
SO | 16    
0.35 | 1ku     0.47 | 1ku