Overview
The AD9276BSVZ from Analog Devices Inc. is an octal Low Noise Amplifier (LNA)/Variable Gain Amplifier (VGA)/Antialiasing Filter (AAF)/12-bit Analog-to-Digital Converter (ADC) and Continuous Wave (CW) I/Q Demodulator. This integrated circuit is designed for low cost, low power, small size, and ease of use, making it suitable for a variety of high-performance applications. The device features eight channels, each with a variable gain range of 42 dB and a fully differential signal path, ensuring high dynamic performance and low power consumption.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| ADC Resolution | 12 bits | |||
| ADC Conversion Rate | 10 | 80 | MSPS | |
| LNA Gain | 15.6 | 17.9 | 21.3 | dB |
| LNA Input Noise | 1.26 | 1.04 | 0.85 | nV/√Hz |
| VGA Gain Range | −42 dB to 0 dB | |||
| AAF Bandwidth | 8 | 18 | MHz | |
| Power Consumption (TGC mode) | 195 mW per channel at 40 MSPS | |||
| Power Consumption (CW mode) | 94 mW per channel | |||
| Operating Temperature | −40 | +85 | °C | |
| Package Type | 100-lead TQFP | |||
Key Features
- Eight channels with variable gain amplifiers (VGA) and low noise amplifiers (LNA)
- Fully differential signal path
- Programmable second-order low-pass antialiasing filter (AAF) from 8 MHz to 18 MHz
- 12-bit ADC with conversion rates up to 80 MSPS
- Integrated CW I/Q demodulator with independently programmable phase rotation
- Low power consumption: 195 mW per channel in TGC mode and 94 mW per channel in CW mode
- Serial port interface (SPI) for flexible control and configuration
- Data clock output (DCO±) supporting up to 480 MHz and double data rate (DDR) operation
- Programmable digital test pattern generation
- RoHS compliant 100-lead TQFP package
Applications
- Medical imaging and ultrasound
- Automotive radar systems
Q & A
- What is the ADC resolution of the AD9276BSVZ?
The AD9276BSVZ features a 12-bit ADC.
- What is the maximum conversion rate of the ADC?
The ADC can operate at conversion rates up to 80 MSPS.
- What are the gain options for the LNA?
The LNA gain can be set to 15.6 dB, 17.9 dB, or 21.3 dB.
- What is the bandwidth range of the antialiasing filter (AAF)?
The AAF bandwidth is programmable from 8 MHz to 18 MHz.
- How much power does the AD9276BSVZ consume in TGC mode?
In TGC mode, the power consumption is 195 mW per channel at 40 MSPS.
- What is the power consumption in CW mode?
In CW mode, the power consumption is 94 mW per channel.
- What is the operating temperature range of the AD9276BSVZ?
The device operates over the industrial temperature range of −40°C to +85°C.
- What type of package does the AD9276BSVZ come in?
The AD9276BSVZ is packaged in a 100-lead TQFP.
- Does the AD9276BSVZ support SPI control?
- What are some typical applications of the AD9276BSVZ?
The device is commonly used in medical imaging, ultrasound, and automotive radar systems.
