Overview
The AD7293BCPZ-RL, produced by Analog Devices Inc., is a highly integrated PA (Power Amplifier) drain current controller designed for comprehensive monitoring and control of current, voltage, and temperature. This device is particularly suited for applications requiring precise control and monitoring of power amplifiers, including those in GaN and GaAs technologies. It features a compact 56-lead LFCSP package and supports a wide temperature range from -40°C to +125°C.
Key Specifications
| Parameter | Value |
|---|---|
| ADC Resolution | 12-bit |
| ADC Input Ranges | 0 V to 1.25 V, 0 V to 2.5 V, 0 V to 5 V |
| DAC Resolution | 12-bit |
| DAC Output Ranges | Bipolar: 0 V to +5 V, -4 V to +1 V, -5 V to 0 V; Unipolar: 0 V to 5 V, 2.5 V to 7.5 V, 5 V to 10 V |
| Current Sense Amplifiers | 4 high-side current sense amplifiers, ±0.1% gain error |
| Temperature Sensors | Internal temperature sensor ±1.25°C accuracy, 2 external temperature sensor inputs ±1.1°C accuracy |
| Interface | SPI-compatible interface with VDRIVE supporting 1.8 V, 3 V, and 5 V |
| Operating Temperature | -40°C to +125°C |
| Package | 56-lead LFCSP |
Key Features
- Four independent closed-loop drain current controllers.
- Built-in monitoring, sequencing, and alert features.
- Compatible with both depletion mode and enhancement mode power amplifiers.
- Four uncommitted 12-bit ADC inputs with ±0.5 LSB typical integral nonlinearity (INL).
- Eight 12-bit DACs with 1.3 µs maximum settling time.
- High accuracy 2.5 V internal reference.
- Eight general-purpose input/output (GPIO) pins.
Applications
- GaN and GaAs power amplifier monitoring and control.
- Base station power amplifiers.
- General-purpose system monitoring and control.
Q & A
- What is the primary function of the AD7293BCPZ-RL? The AD7293BCPZ-RL is a PA drain current controller designed for monitoring and controlling current, voltage, and temperature in power amplifiers.
- What is the resolution of the ADC in the AD7293BCPZ-RL? The ADC has a 12-bit resolution.
- What are the output ranges of the DACs in the AD7293BCPZ-RL? The DACs have bipolar output ranges of 0 V to +5 V, -4 V to +1 V, and -5 V to 0 V, and unipolar output ranges of 0 V to 5 V, 2.5 V to 7.5 V, and 5 V to 10 V.
- How many current sense amplifiers does the AD7293BCPZ-RL have? It has four high-side current sense amplifiers with ±0.1% gain error.
- What is the accuracy of the internal temperature sensor? The internal temperature sensor has an accuracy of ±1.25°C.
- What interface does the AD7293BCPZ-RL use? It uses an SPI-compatible interface with VDRIVE supporting 1.8 V, 3 V, and 5 V.
- What is the operating temperature range of the AD7293BCPZ-RL? The operating temperature range is from -40°C to +125°C.
- In what package is the AD7293BCPZ-RL available? It is available in a 56-lead LFCSP package.
- Is the AD7293BCPZ-RL compatible with both depletion and enhancement mode power amplifiers? Yes, it is compatible with both depletion mode and enhancement mode power amplifiers.
- What are some common applications of the AD7293BCPZ-RL? Common applications include GaN and GaAs power amplifier monitoring and control, base station power amplifiers, and general-purpose system monitoring and control.
