SPA-1218 1960 MHz 1 Watt Power Amp with Active Bias is a high efficiency GaAs Heterojunction Bipolar Transistor (HBT) amplifier housed in a low-cost surface-mountable plastic package.
The SPA-1218 is a high‑efficiency GaAs HBT power amplifier designed for the 1950‑1990 MHz PCS band. It features on‑chip active bias control, high linearity (+48 dBm OIP3 typical), and a surface‑mountable plastic package, making it suitable for multi‑carrier and digital applications.
The document includes detailed electrical parameters, pin descriptions, absolute maximum ratings, and an evaluation‑board layout. It also provides ordering information, package dimensions, and handling precautions for the exposed‑pad SOIC‑8 package.
| Typical OIP3 | +48 dBm |
|---|---|
| Small‑Signal Gain | 12.0 dB |
| Input VSWR | 1.5:1 |
| Supply Current (Iₚ) | 750 mA |
| Device Voltage | 6.0 V |
| Power Dissipation | 40 W |
| RF Input Power | +500 mW |
| Storage Temperature Range | -40 to +150 °C |
The absolute maximum supply current is specified as 750 mA.
The typical OIP3 is +48 dBm.