High Linearity Gain Blocks with Bypass
Broadband, Internally Matched Amplifiers with Bypass and Excellent Linearity
About high-linearity gain blocks with bypass: high-OIP3 gain blocks with an integrated bypass path so the amp can be electrically removed when input levels would otherwise compress it. Read more »Read less «
A high-linearity gain block with bypass combines the high-OIP3 / high-OP1 inter-stage amplifier with a switchable bypass path, controlled by a single digital pin. When the signal level is normal, the part operates as a standard high-linearity gain block. When the input swings high enough that amplification would generate intermod or compress the modulation, the bypass switch routes the signal around the amplifier core, replacing the gain with a small fixed insertion loss.
The bypass mode is the right answer for AGC-controlled inter-stage paths, TDD radios that need to swap transmit-path linearity for receive-path low-loss, and signal chains with strong adjacent transmitters where the amplifier would otherwise saturate. Selection criteria match the standard high-linearity gain block (OIP3, OP1, gain flatness), with the addition of bypass insertion loss and switching speed.
Common applications include cellular base-station and DAS transmit chains with on/off duty cycles, point-to-point microwave backhaul with AGC, and broadband CATV / HFC paths that have to handle a wide range of input levels. AEC-Q100 grade-2 qualified variants are denoted with a "-W" suffix.
The table below lists the active high-linearity-gain-block-with-bypass portfolio sorted by SKU. Click any SKU for the full data sheet, S-parameters, and reference designs.
| Product | Description | Min Freq (GHz) | Max Freq (GHz) | Parametric Charts | Reference Conditions | Gain(dB) | NF(dB) | OP1dB (dBm) | OIP3 (dBm) | Vdd Range (V) | Idd Range (mA) | Features | Package (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GRF2040 | Broadband Linear Gain Block with Bypass |
0.05 | 5 | 5V/90mA/2000MHz |
10.2 | 3.1 | 20 | 36 | 2.7-8.0 | 15-90 | Broadband, low noise, internally matched |
1.5 DFN-6 | |
| GRF2042 | Linear Gain Block with Bypass |
0.15 | 6.0 | 5V/80mA/1700MHz |
15.5 | 2.1 | 22.0 | 38.0 | 2.7-6.0 | 20-100 | Flat gain; low noise; high linearity; internally matched; bypass |
1.5 DFN-6 | |
| GRF2043 | Linear Gain Block with Bypass |
0.15 | 6.0 | 5V/80mA/1.9GHz |
18.5 | 1.8 | 22.0 | 36.0 | 2.7-6.0 | 20-100 | Bypass; low noise; high linearity; internally matched; flex bias |
1.5 DFN-6 |
* = Product is in Pre-Production. Contact [email protected] for minimum order quantity.