Overview
The AD9273BBCZ-50, produced by Analog Devices Inc., is a highly integrated, low-power, octal-channel analog front-end (AFE) device. It is designed for applications requiring low cost, small size, and ease of use. The device includes eight channels of a low noise preamplifier (LNA), a variable gain amplifier (VGA), an antialiasing filter (AAF), and a 12-bit analog-to-digital converter (ADC) with conversion rates up to 50 MSPS. Each channel features a variable gain range of 42 dB, a fully differential signal path, and active input preamplifier termination. The AD9273 is optimized for dynamic performance and low power consumption, making it suitable for applications where space is critical.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| LNA Gain (Single-ended input to differential output) | 15.6/17.9/21.3 | 15.6/17.9/21.3 | 15.6/17.9/21.3 | dB | |
| LNA Gain (Single-ended input to single-ended output) | 9.6/11.9/15.3 | 9.6/11.9/15.3 | 9.6/11.9/15.3 | dB | |
| ADC Resolution | 12 bits | ||||
| ADC Conversion Rate | 10 MSPS to 50 MSPS | ||||
| Power Consumption per Channel | 12 bits/40 MSPS (TGC) | 109 mW | mW | ||
| Power Consumption per Channel in CW Doppler | 70 mW | mW | |||
| Package Type | 144-Ball CSPBGA (10mm x 10mm x 1.4mm) | ||||
| Operating Temperature Range | −40°C to +85°C | °C |
Key Features
- Eight channels of LNA, VGA, AAF, and ADC integrated into a single device.
- Variable gain range of 42 dB per channel.
- Fully differential signal path and active input preamplifier termination.
- Maximum gain of up to 52 dB.
- Integrated 8 × 8 differential crosspoint switch to support continuous wave (CW) Doppler mode.
- Low power consumption: 109 mW per channel at 12 bits/40 MSPS (TGC) and 70 mW per channel in CW Doppler mode.
- Flexible power-down modes and fast recovery from low power standby mode (<2 μs).
- Overload recovery in less than 10 ns.
- SPI-programmable PGA gain and programmable antialiasing filter (AAF).
- Serial LVDS (ANSI-644, IEEE 1596.3 reduced range link) data and frame clock outputs.
Applications
- Medical imaging and ultrasound.
- Automotive radar.
Q & A
- What is the AD9273BBCZ-50 used for?
The AD9273BBCZ-50 is an octal-channel analog front-end (AFE) device used in applications requiring low power, small size, and high dynamic performance, such as medical imaging, ultrasound, and automotive radar.
- What are the key components of the AD9273BBCZ-50?
The device includes eight channels of a low noise preamplifier (LNA), a variable gain amplifier (VGA), an antialiasing filter (AAF), and a 12-bit analog-to-digital converter (ADC).
- What is the maximum ADC conversion rate of the AD9273BBCZ-50?
The ADC conversion rate can go up to 50 MSPS.
- What is the power consumption per channel at 12 bits/40 MSPS (TGC)?
The power consumption per channel is 109 mW at 12 bits/40 MSPS (TGC).
- What is the power consumption per channel in CW Doppler mode?
The power consumption per channel in CW Doppler mode is 70 mW.
- What type of package is the AD9273BBCZ-50 available in?
The device is available in a 144-Ball CSPBGA (10mm x 10mm x 1.4mm) package.
- What is the operating temperature range of the AD9273BBCZ-50?
The operating temperature range is −40°C to +85°C.
- Does the AD9273BBCZ-50 support continuous wave (CW) Doppler mode?
Yes, it includes an 8 × 8 differential crosspoint switch to support CW Doppler mode.
- How does the AD9273BBCZ-50 handle overload recovery?
The device has an overload recovery time of less than 10 ns.
- What interface is used for programming the AD9273BBCZ-50?
The device uses a Serial Port Interface (SPI) for programming.
