SN75121 - 双路线路驱动器

SN75121是TI德州仪器公司的一款其它线电路产品，SN75121是双路线路驱动器，本站介绍了SN75121的封装应用图解、特点和优点、功能等，并给出了与SN75121相关的TI元器件型号供参考。

SN75121 - 双路线路驱动器 - 其它线电路 - 其它接口 - 德州仪器

产品描述

The SN55121 and SN75121 dual line drivers are designed for digital data transmission over lines having impedances from 50 to 500 . They are also compatible with standard TTL logic and supply-voltage levels.

The low-impedance emitter-follower outputs of the SN55121 and SN75121 can drive terminated lines such as coaxial cable or twisted pair. Having the outputs uncommitted allows wired-OR logic to be performed in party-line applications. Output short-circuit protection is provided by an internal clamping network that turns on when the output voltage drops below approximately 1.5 V. All of the inputs are in conventional TTL configuration and the gating can be used during power-up and power-down sequences to ensure that no noise is introduced to the line.

The SN55121 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN75121 is characterized for operation from 0°C to 70°C.

H = high level, L = low level, X = irrelevant

产品特性

Designed for Digital Data Transmission Over 50- Coaxial Cable, Strip Line, or Twisted Pair
High Speed
tpd = 20 ns Maximum at CL = 15 pF
TTL Compatible With Single 5-V Supply
2.4-V Output at IOH = -75 mA
Uncommitted Emitter-Follower Output Structure for Party-Line Operation
Short-Circuit Protection
AND-OR Logic Configuration
Designed for Use With Triple Line Receivers SN55122, SN75122
Designed to Be Interchangeable With Signetics N8T13

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