Overview
The ADL5243ACPZ-R7, produced by Analog Devices Inc., is a highly versatile RF/IF Digitally Controlled Variable Gain Amplifier (VGA) designed for a wide range of applications. This component operates over a frequency range of 100 MHz to 4000 MHz, making it suitable for various RF and IF signal processing tasks. The ADL5243 integrates a gain block amplifier, a digitally controlled step attenuator, and a driver amplifier, all of which are internally matched to 50 Ω at their inputs and outputs. This integration and the separate biasing of each component provide maximum flexibility in signal chain design.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Frequency | 100 | 4000 | MHz | |
| Gain Control Range | 31.5 | dB | ||
| Gain Step Accuracy | ±0.25 | dB | ||
| Attenuation Range | 31.7 | dB | ||
| Supply Voltage | 4.75 | 5.0 | 5.25 | V |
| Supply Current (AMP1) | 89 | 120 | mA | |
| Supply Current (AMP2) | 86 | 120 | mA | |
| Supply Current (DSA) | 0.5 | mA | ||
| Input 1 dB Compression Point | 31.0 | dBm | ||
| Input Third-Order Intercept | 46.2 | dBm | ||
| Noise Figure | 3.7 | dB | ||
| Operating Temperature | -40 | +85 | °C |
Key Features
- Digitally controlled VGA with serial and parallel interfaces
- 6-bit, 0.5 dB digital step attenuator
- Gain block amplifier with 19.2 dB gain at 2140 MHz
- Internally matched to 50 Ω at inputs and outputs
- Separate biasing for each component (gain block, DSA, driver amplifier)
- Thermally efficient 5 mm × 5 mm, 32-lead LFCSP package
- Operates from a single supply voltage of 4.75 V to 5.25 V
- Consumes 175 mA of current
Applications
The ADL5243ACPZ-R7 is suitable for a variety of RF and IF applications, including but not limited to:
- Wireless communication systems
- Radar systems
- Test and measurement equipment
- Base stations and repeaters
- Medical imaging and diagnostic equipment
Q & A
- What is the operating frequency range of the ADL5243ACPZ-R7?
The operating frequency range is from 100 MHz to 4000 MHz. - What is the gain control range of the ADL5243?
The gain control range is 31.5 dB with 0.5 dB steps and ±0.25 dB step accuracy. - What is the supply voltage range for the ADL5243?
The supply voltage range is from 4.75 V to 5.25 V. - How much current does the ADL5243 consume?
The ADL5243 consumes 175 mA of current. - What is the operating temperature range of the ADL5243?
The operating temperature range is from -40°C to +85°C. - What type of package does the ADL5243 come in?
The ADL5243 comes in a 5 mm × 5 mm, 32-lead LFCSP package. - Is the ADL5243 RoHS compliant?
Yes, the ADL5243 is RoHS compliant. - What are the key components integrated into the ADL5243?
The ADL5243 integrates a gain block amplifier, a digitally controlled step attenuator, and a driver amplifier. - How are the components of the ADL5243 biased?
The components are separately biased, allowing for flexible use in design. - Is an evaluation board available for the ADL5243?
Yes, a fully populated evaluation board is available for the ADL5243.
