Overview
The AD9273BSVZ-50, produced by Analog Devices Inc., is a highly integrated, low-power, and compact analog-to-digital converter (ADC) system. This device is designed for applications requiring multiple channels of signal processing with low noise and high dynamic performance. It features eight channels of a low noise preamplifier (LNA), a variable gain amplifier (VGA), an antialiasing filter (AAF), and a 12-bit ADC. The AD9273 is optimized for use in medical imaging, ultrasound, and automotive radar systems, among other applications, due to its small footprint, low power consumption, and ease of use.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 8 | |
| Resolution | 12 bits | |
| Sampling Rate | 10 MSPS to 50 MSPS | |
| LNA Gain | 15.6 dB / 17.9 dB / 21.3 dB | dB |
| VGA Gain Range | −42 dB to 0 dB | dB |
| AAF Cutoff Frequency | 8 MHz to 18 MHz | MHz |
| Power Consumption per Channel | 109 mW at 12 bits/40 MSPS (TGC), 70 mW in CW Doppler | mW |
| Package Type | 100-lead TQFP, 144-ball BGA | |
| Operating Temperature Range | −40°C to +85°C | °C |
| Interface | LVDS (ANSI-644, IEEE 1596.3 reduced range link) |
Key Features
- Eight channels of LNA, VGA, AAF, and ADC, providing a complete signal processing path.
- Low noise preamplifier (LNA) with selectable single-ended-to-differential gain through SPI.
- Variable gain amplifier (VGA) with a gain range of −42 dB to 0 dB and linear-in-dB gain control.
- Programmable antialiasing filter (AAF) with a 2nd-order low-pass filter and high-pass filter.
- 12-bit ADC with sampling rates from 10 MSPS to 50 MSPS.
- Integrated 8 × 8 differential crosspoint switch for 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.
- Serial port interface (SPI) for control and configuration.
Applications
- Medical imaging and ultrasound systems.
- Automotive radar systems.
Q & A
- What is the primary function of the AD9273BSVZ-50?
The AD9273BSVZ-50 is an octal low noise preamplifier (LNA), variable gain amplifier (VGA), antialiasing filter (AAF), and analog-to-digital converter (ADC) system.
- How many channels does the AD9273BSVZ-50 have?
The device has eight channels.
- What is the resolution and sampling rate of the ADC?
The ADC has a resolution of 12 bits and a sampling rate range of 10 MSPS to 50 MSPS.
- What is the power consumption per channel?
The power consumption is 109 mW per channel at 12 bits/40 MSPS (TGC) and 70 mW per channel in CW Doppler mode.
- What types of packages are available for the AD9273BSVZ-50?
The device is available in 100-lead TQFP and 144-ball BGA packages.
- What is the operating temperature range of the AD9273BSVZ-50?
The operating temperature range is −40°C to +85°C.
- What interface does the AD9273BSVZ-50 use for data output?
The device uses LVDS (ANSI-644, IEEE 1596.3 reduced range link) for data output.
- What is the purpose of the integrated 8 × 8 differential crosspoint switch?
The switch supports continuous wave (CW) Doppler mode and allows for various multichannel configuration options.
- How does the AD9273BSVZ-50 manage power consumption?
The device features flexible power-down modes and fast recovery from low power standby mode.
- What is the typical input-referred noise voltage of the LNA?
The typical input-referred noise voltage of the LNA is 1.26 nV/√Hz at a gain of 21.3 dB.
