1 Features
• Switching rates up to 32MHz
• Operate from a single 3.3V supply
• Propagation delay time: 8ns typical
• Pulse skew time: 500ps typical
• High output-drive current: ±30 mA
• Controlled rise and fall times: 3ns typical
• Differential output voltage with 100Ω
load: 1.5V typical
• Ultra-low power dissipation
– DC, 0.3mW maximum
– 32MHz All channels (no load), 385mW typical
• Accept 5V logic inputs with 3.3V 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

2 Applications
• Motor control: brushless DC and brushed DC
• Field transmitters: temperature sensors and
pressure sensors
• Temperature sensors or controllers using Modbus

3 Description
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 32MHz. 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 activelow
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