July 29, 2011 www.clare.com 1
Characteristics
Features
• CMOS Technology
• TTL/CMOS Compatible Inputs
• Low Switching Noise
• 5nS Typical True / Complement Output Skew
• 5nS Typical Output Rise and Fall Times
• Up to 20V Output Voltage
• Output High Voltage Programmable Via V
OPT
• Output Low Voltage Programmable Via V
EE
Applications
• Digital Control of Analog Circuits
• Level Shifting and Amplification
• Circuit Applications Requiring Complementary
Signal Generation with Low Skew
• Bias Control for PIN Diode Drivers in a Microwave
Switch
Description
The MX856 and MX857 are high speed,
single-channel level shifters with complementary
output drivers. The MX856 features a 5.0V V
CC
positive supply, and the MX857 features a 3.3V V
CC
positive supply.
The input buffers accept digital TTL or CMOS level
signals, amplifies them to the V
CC
and GND supply
rails, and generates complementary outputs. The
translator level shifts these output signals by
amplifying them to the V
CC
and V
EE
supply rails.
The output drivers then buffer the signals to V
OPT
and
V
EE
. V
OPT
may be set within the range of V
CC
and
GND. The output drivers also adjust the
complementary signals for minimized skew error.
The MX856 and MX857 are designed to operate over
a temperature range of -40°C to +85°C, and are
available in an 8-lead SOIC package.
Ordering Information
Functional Block Diagram
Parameter Rating Units
Output Voltage 20 V
Output Rise Time 5 ns
Output Fall Time 5 ns
Part Description
MX856B 8-Lead SOIC (100/Tube)
MX856BTR 8-Lead SOIC, Tape&Reel (1000/Reel)
MX857B 8-Lead SOIC (100/Tube)
MX857BTR 8-Lead SOIC, Tape&Reel (1000/Reel)
Input Buffer
Translator
Output Buffer
V
CC
V
CC
V
CC
V
EE
V
EE
V
OPT
GNDGND
IN
OUT
OUT_B
RoHS
2002/95/EC
e
3
Pb
MX856/MX857
Single Driver for Attenuators
and GaAs FET Switches
