DS8830N

Overview

The DS8830N is a dual differential line driver manufactured by Texas Instruments, integrating dual four-input NAND or AND logic functions. It operates on a single 5V supply with an operating temperature range of 0°C to +70°C. The device features TTL-compatible multiple emitter inputs and balanced differential outputs designed for transmission lines with characteristic impedances between 50Ω and 500Ω. Key electrical specifications include a typical propagation delay of 12ns, a maximum supply current of 18mA per driver, and short-circuit protection capabilities.

Feature Summary

• Integrates dual differential line drivers with dual four-input NAND or AND logic gates
• Features diode-protected inputs and outputs for transient immunity
• Includes built-in short circuit protection
• Supports standard TTL system interfacing via multiple emitter inputs

Applications

• Digital data transmission over coaxial cable, strip line, or twisted pair
• Driving long lengths of transmission lines with characteristic impedances from 50Ω to 500Ω
• Systems requiring elimination of ground-loop errors associated with single-wire transmissions

Procurement Notes

Verify the manufacturer origin carefully, as the datasheet indicates National Semiconductor Corporation as the original publisher. Confirm that the specific DS8830N part number corresponds to the molded Dual-In-Line package (NS Package Number N14A). Ensure the component meets the required commercial temperature range of 0°C to +70°C rather than the extended military range available in other variants.

Selection Notes

Select this component when a combined logic gate and high-speed differential driver is required for TTL-based systems. It is suitable for applications driving 50Ω to 500Ω transmission lines where ground-loop isolation is necessary. Consider alternative packages if military-grade temperature ranges (-55°C to +125°C) are needed, as the 'N' suffix denotes the commercial grade variant.

Part Context

This component belongs to the DS7830/DS8830 family of dual differential line drivers. The DS8830 specifically designates the commercial temperature grade version, while the DS7830 covers the extended military range. Both share identical functional architectures but differ in environmental operating limits and qualification standards.

Replacement Considerations

Public confirmed substitute part numbers: DS7830J, DS7830W, DS8830J.