ADL5240
LAST TIME BUY100 MHz TO 4000 MHz RF/IF Digitally Controlled VGA
Part Details
- Operating frequency from 100 MHz to 4000 MHz
- Digitally controlled VGA with serial and parallel interfaces
- 6-bit, 0.5 dB digital step attenuator
- 31.5 dB gain control range with ±0.25 dB step accuracy
- Gain block or digital step attenuator can be first
- Single supply operation from 4.75 V to 5.25 V
- 31.5 dB gain control range with ±0.25 dB step accuracy
- Gain block amplifier specifications
Gain: 19.7 dB at 2.14 GHz
OIP3: 41.0 dBm at 2.14 GHz
P1dB: 19.5 dBm at 2.14 GHz
Noise figure: 2.9 dB at 2.14 GHz - Low quiescent current of 93 mA
- Thermally efficient, 5 mm × 5 mm, 32-lead LFCSP
- The companion ADL5243 integrates a ¼ W driver amplifier to the output of the gain block and DSA
The ADL5240 is a high performance, digitally controlled variable gain amplifier (VGA) operating from 100 MHz to 4000 MHz. The VGA integrates a high performance, 20 dB gain, internally matched amplifier (AMP) with a 6-bit digital step attenuator (DSA) that has a gain control range of 31.5 dB in 0.5 dB steps with ±0.25 dB step accuracy. The attenuation of the DSA can be controlled using a serial or parallel interface.
Both the gain block and DSA are internally matched to 50 Ω at their inputs and outputs and are separately biased. The separate bias allows all or part of the ADL5240 to be used, which facilitates easy reuse throughout a design. The pinout of the ADL5240 also enables either the gain block or DSA to be first, giving the VGA maximum flexibility in a signal chain.
The ADL5240 consumes just 93 mA and operates from a single supply ranging from 4.75 V to 5.25 V. The VGA is packaged in a thermally efficient, 5 mm × 5 mm, 32-lead LFCSP and is fully specified for operation from −40°C to +85°C. A fully populated evaluation board is available.
Applications
- Wireless infrastructure
- Automated test equipment
- RF/IF gain control
Documentation
Data Sheet 1
Evaluation Design File 1
Product Selection Guide 1
This is the most up-to-date revision of the Data Sheet.
Software Resources
Evaluation Software 1
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Positive Linear Regulators (LDO) 1 | ||
| ADP7102 | RECOMMENDED FOR NEW DESIGNS | 20 V, 300 mA, Low Noise, CMOS LDO |
Tools & Simulations
S-Parameter 1
Sys-Parameter Models for Keysight Genesys
Sys-Parameter models contain behavioral parameters, such as P1dB, IP3, gain, noise figure and return loss, which describe nonlinear and linear characteristics of a device.
Open ToolADIsimPLL™
ADIsimPLL enables the rapid and reliable evaluation of new high performance PLL products from ADI. It is the most comprehensive PLL Synthesizer design and simulation tool available today. Simulations performed include all key non-linear effects that are significant in affecting PLL performance. ADIsimPLL removes at least one iteration from the design process, thereby speeding the design- to-market.
Open ToolADIsimRF
ADIsimRF is an easy-to-use RF signal chain calculator. Cascaded gain, noise, distortion and power consumption can be calculated, plotted and exported for signal chains with up to 50 stages. ADIsimRF also includes an extensive data base of device models for ADI’s RF and mixed signal components.
Open ToolEvaluation Kits
Direct RF to Baseband Transmit Radio
Resources
ADL5240 Evaluation Board