SN55107A, SN55107B, SN55108A, SN55108B SN75107A, SN75107B, SN75108A, SN75108B DUAL LINE RECEIVERS

SLLS069B - JANUARY 1977 - MAY 1995

features

High Speed
Standard Supply Voltage
Dual Channels
High Common-Mode Rejection Ratio
High Input Impedance
High Input Sensitivity
Differential Common-Mode Input Voltage Range of ±3 V
Strobe Inputs for Receiver Selection
Gate Inputs for Logic Versatility
TTL Drive Capability
High dc Noise Margin
'107A and '107B Have Totem-Pole Outputs
'108A and '108B Have Open-Collector Outputs
B Versions Have Diode-Protected Input for Power-Off Condition

description

These circuits are TTL-compatible, high-speed line receivers. Each is a monolithic dual circuit featuring two independent channels. They are designed for general use as well as such specific applications as data comparators and balanced, unbalanced, and party-line transmission systems. These devices are unilaterally interchangeable with and are replacements for the SN55107, SN55108, SN75107, and SN75108, but offer diode-clamped strobe inputs to simplify circuit design.

The essential difference between the A and B versions can be seen in the schematics. Input-protection diodes are in series with the collectors of the differential-input transistors of the B versions. These diodes are useful in certain party-line systems that may have multiple V_CC+ power supplies and may be operated with some of the V_CC+ supplies turned off. In such a system, if a supply is turned off and allowed to go to ground, the equivalent input circuit connected to that supply would be as follows:

This would be a problem in specific systems that might possibly have the transmission lines biased to some potential greater than 1.4 V.

The SN55107A, SN55107B, SN55108A, and SN55108B are characterized for operation over the full military temperature range of -55°C to 125°C. The SN75107A, SN75107B, SN75108A, and SN75108B are characterized for operation from 0°C to 70°C.

Title: DUAL LINE RECEIVERS
Product Family: TRANSMITTERS AND RECEIVERS
Device Functionality: TRANSMITTERS/RECEIVERS
Orderable Devices: JM38510/10402BCA, SN55108AJ, SNJ55108AJ, SN75108BD, SN75108BN

View the complete PDF datasheet: slls069b.pdf (279 K Bytes) (Requires Acrobat Reader 3.x)

View more information about generic part numbers:SN55107B, SN55108A, SN75108B

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