The MAX2130 is a low-noise dual-output amplifier from Maxim for TV tuner applications. It integrates functions typically achieved with discrete components into the space-saving 8-pin µMAX-EP package. The device provides a gain of +15dB with a noise figure less than 3.2dB over the 44MHz to 878MHz frequency range. The MAX2130 features an externally adjustable bias control, set with a single resistor, that allows the user to meet minimum linearity requirements while reducing current consumption. The device operates from a +5V single supply and only requires 93mA of supply current when nominally biased.
The MAX2130 broadband amplifier provides +15 dB gain with a noise figure under 3.2 dB across 44 MHz to 878 MHz. It integrates functions normally built with discrete components into an 8‑pin µMAX‑EP package and features an externally adjustable bias set by a single resistor.
The device operates from a +5 V single supply, drawing 93 mA at nominal bias. Bias is programmed via R_BIAS, allowing trade‑offs between linearity and current consumption. The LNA output requires a pull‑up inductor, while the loop‑out output is internally biased.
| Operating Frequency Range | 44 MHz – 878 MHz |
|---|---|
| Typical Gain (LNA) | +15 dB |
| Noise Figure (LNA) | 3.2 dB |
| Supply Voltage | 4.75 V – 5.25 V |
| Supply Current (nominal bias) | 93 mA |
| Input Return Loss (min) | 7.4 dB |
The MAX2130 operates from a single +5 V supply, with an acceptable range of 4.75 V to 5.25 V.
Bias is set with a single resistor (R_BIAS) from the BIAS pin to ground; a nominal 15 kΩ sets the typical linearity and 93 mA current.
The LNA provides a typical gain of about +15 dB (range 13.4 dB to 16.6 dB).
The typical noise figure is 3.2 dB across the operating frequency range.