双线路接收器 DUAL LINE RECEIVERS
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 for 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, 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 have multiple VCC+ power supplies and can be operated with some of the VCC+ 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 have the transmission lines biased to some potential greater than 1.4 V.
The SN55107A is characterized for operation over the full military temperature range of -55°C to 125°C. The SN75107A, SN75107B, and SN75108A are characterized for operation from 0°C to 70°C.
H = high level, L = low level, X = irrelevant View datasheet View product folder
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
SN75107AD TI 德州仪器 | 当前型号 | 当前型号 |
SN75107BD 德州仪器 | 完全替代 | SN75107AD和SN75107BD的区别 |
SN75107BDR 德州仪器 | 完全替代 | SN75107AD和SN75107BDR的区别 |
SN75107ADR 德州仪器 | 完全替代 | SN75107AD和SN75107ADR的区别 |