This file introduces the characteristics of LM194 and LM394 Supermatch Pair products. These two products are junction isolated ultra well-matched monolithic NPN transistor pairs with an order of magnitude improvement in matching over conventional tran- sistor pairs
The LM194 and LM394 are junction‑isolated NPN transistor pairs offering an order‑of‑magnitude improvement in matching over conventional pairs. They feature low emitter‑base voltage mismatch, offset‑voltage drift under 0.1 mV/°C, and current‑gain matching within 2 % across a wide current range, making them suitable for precision analog applications.
The document provides absolute maximum ratings, electrical characteristics, typical applications, performance graphs, package diagrams, and physical dimensions. It also includes a life‑support policy disclaimer and contact information for National Semiconductor worldwide offices.
| Emitter‑base voltage match | 50 mV |
|---|---|
| Offset voltage drift | < 0.1 mV/°C |
| Current‑gain (hFE) match | ±2 % |
| Common‑mode rejection ratio | > 120 dB |
| Power dissipation | 500 mW |
Offset voltage drift is specified as less than 0.1 mV per °C.