The TT1340 is a monolithic matched transistor array containing two NPN and two PNP transistors, designed for low-noise amplifier input stages, current mirrors, and log/antilog amplifiers. It features a typical voltage noise density of 0.8 nV/√Hz for NPNs and 0.75 nV/√Hz for PNPs, with a gain-bandwidth product of 350 MHz for NPNs and 325 MHz for PNPs. Transistor matching is within 5% for current gain, and base-spreading resistance is 30 Ω for NPNs and 25 Ω for PNPs. The device is available in ceramic flatpack, LCC, and surface-mount packages, with a maximum collector-emitter voltage of ±36 V and an operating temperature range of 0°C to 70°C. It is fabricated using a dielectrically isolated complementary bipolar process for low crosstalk and high DC isolation. The part is ESD-sensitive and not rated for life support applications.
The TT Semiconductor 1300 series are large-geometry, 4-transistor, monolithic NPN and/or PNP arrays exhibiting both high speed and low noise, with excellent parameter matching between transistors of the same gender. With typical base-spreading resistances of 25 ohms for the PNP devices (30 ohms for the NPNs), their low voltage noise of under 1 nV/Hz½, the 1300 series are ideally suited for low-noise amplifier input stages, among other applications.
| TT Semiconductor, Inc. | |
|---|---|
| Product Category | Bipolar RF Transistors |
| Product Number | TT1340S |
| Product Name | Matched Transistor Array |
| Transistor Grade / Operating Range | Military; Mil-Processed, Extended Temperature |
| Package Type | 14 Pin Extended Temp Plastic SOIC |
| Packing Method | Tape Reel (optional feature); Tube (optional feature) |
| Number of units in IC | 4 |
| IC(max) | -20 to 20 milliamps |
