Overview
The LTC6433-15, produced by Analog Devices Inc., is a high-performance gain-block amplifier designed for a wide range of signal-chain applications. It offers excellent linearity across frequencies from below 100kHz to beyond 1000MHz, along with low associated output noise. This amplifier is internally input/output matched to 50Ω, making it easy to use with a minimum of external components. It operates from a single 5V supply, drawing only 95mA, and is housed in a 4mm × 4mm 24-lead QFN package with an exposed pad for thermal management and low inductance.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Operating Supply Range (VS) | 4.75 | 5.0 | 5.25 | V | |
| Total Supply Current (IS,TOT) | All VCC Pins Plus OUT | 75 | 95 | 112 | mA |
| Total Supply Current to OUT Pin (IS,OUT) | Current to OUT | 62 | 82 | 95 | mA |
| Current to VCC Pin (ICC,OUT) | Either VCC Pin May Be Used | 12 | 13 | 17.5 | mA |
| Temperature Diode Voltage (VDIODE) | T_Diode Current = 1mA | 0.85 | V | ||
| Temperature Diode Coefficient (TC) | 1.4 | mV/°C | |||
| Power Gain (S21) | De-Embedded to Package, Frequency = 50MHz | 15.9 | dB | ||
| Output Third-Order Intercept Point (OIP3) | POUT = 2dBm/Tone, Δf = 1MHz, A-Grade | 48.0 | dBm | ||
| Noise Figure (NF) | De-Embedded to Package, Frequency = 150MHz | 3.22 | dB | ||
| Total Input Noise Density | Frequency = 150MHz | 1 | nV/√Hz |
Key Features
- Excellent linearity across frequencies from below 100kHz to beyond 1000MHz.
- Low associated output noise and high linearity, making it ideal for many signal-chain applications.
- Internally input/output matched to 50Ω, requiring a minimum of external components.
- Operates from a single 5V supply, drawing only 95mA.
- Housed in a 4mm × 4mm 24-lead QFN package with an exposed pad for thermal management and low inductance.
- On-chip bias and temperature compensation maintain performance over environmental changes.
- Uses a high-performance SiGe BiCMOS process for excellent repeatability compared with similar GaAs amplifiers.
- A-grade devices are tested and guaranteed for OIP3 at 150MHz.
Applications
- Low frequency to 1.4GHz bandwidth applications.
- Signal-chain applications requiring high linearity and low noise.
- IF amplifier applications where flat gain from 100kHz to 1GHz is necessary.
- Applications where user-defined low frequency cutoff is required.
Q & A
- What is the operating frequency range of the LTC6433-15?
The LTC6433-15 operates across frequencies from below 100kHz to beyond 1000MHz.
- What is the power gain of the LTC6433-15?
The power gain of the LTC6433-15 is 15.9dB.
- What is the noise figure of the LTC6433-15 at 150MHz?
The noise figure at 150MHz is 3.22dB.
- How much current does the LTC6433-15 draw from a 5V supply?
The LTC6433-15 draws 95mA from a single 5V supply.
- What is the package type and size of the LTC6433-15?
The LTC6433-15 is housed in a 4mm × 4mm 24-lead QFN package with an exposed pad.
- Is the LTC6433-15 capable of DC coupled operation?
No, the LTC6433-15 is not capable of DC coupled operation, but users can define the low frequency cut-off by appropriate choice of external components.
- What process is used in the fabrication of the LTC6433-15?
The LTC6433-15 uses a high-performance SiGe BiCMOS process.
- What is the output third-order intercept point (OIP3) of the LTC6433-15 at 150MHz?
The OIP3 at 150MHz is 48.0dBm for A-grade devices.
- How is thermal management handled in the LTC6433-15?
The LTC6433-15 has an exposed pad for thermal management and low inductance.
- What are some typical applications of the LTC6433-15?
Typical applications include low frequency to 1.4GHz bandwidth, signal-chain applications, and IF amplifier applications.
