Overview
The AD9273BSVZ-40, produced by Analog Devices Inc., is a high-performance, octal-channel analog-to-digital converter (ADC) designed for applications requiring precise signal acquisition and conversion. This component is optimized for low cost, low power consumption, small size, and ease of use. It integrates eight channels of a low noise preamplifier (LNA), a variable gain amplifier (VGA), an antialiasing filter (AAF), and a 12-bit ADC. Each channel features a variable gain range of 42 dB and a fully differential signal path, making it suitable for dynamic performance and low power requirements in various applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 8 | - |
| ADC Resolution | 12 bits | - |
| ADC Conversion Rate | 10 MSPS to 50 MSPS | MSPS |
| LNA Gain Range | 42 dB | dB |
| LNA Input-Referred Noise Voltage | 1.26 nV/√Hz (at 21.3 dB gain) | nV/√Hz |
| VGA Gain Range | -42 dB to 0 dB | dB |
| AAF Type | Programmable 2nd-order low-pass filter (LPF) from 8 MHz to 18 MHz | - |
| Power Consumption per Channel | 109 mW at 12 bits/40 MSPS (TGC), 70 mW in CW Doppler | mW |
| Package Options | 100-lead TQFP, 144-ball BGA | - |
| Operating Temperature Range | -40°C to +85°C | °C |
Key Features
- Eight channels of LNA, VGA, AAF, and ADC integrated into a single package.
- Low noise preamplifier with a single-ended-to-differential gain selectable through SPI.
- Variable gain amplifier with a gain range of -42 dB to 0 dB and linear-in-dB gain control.
- Programmable antialiasing filter with 2nd-order low-pass and high-pass filters.
- 12-bit ADC with conversion rates up to 50 MSPS and SNR of 70 dB.
- Includes an 8 × 8 differential crosspoint switch for continuous wave (CW) Doppler support.
- Low power consumption with flexible power-down modes and fast recovery from low power standby mode.
- Overload recovery in less than 10 ns.
- Serial LVDS (ANSI-644, IEEE 1596.3 reduced range link) data and frame clock outputs.
Applications
- Medical imaging and ultrasound.
- Automotive radar systems.
Q & A
- What is the primary function of the AD9273BSVZ-40?
The AD9273BSVZ-40 is an octal-channel analog-to-digital converter (ADC) that integrates low noise preamplifiers (LNAs), variable gain amplifiers (VGAs), antialiasing filters (AAFs), and ADCs.
- What are the key components of each channel in the AD9273BSVZ-40?
Each channel includes 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 gain range of the LNA in the AD9273BSVZ-40?
The LNA has a gain range of 42 dB, with a maximum gain of up to 52 dB.
- What are the power consumption characteristics of the AD9273BSVZ-40?
The component consumes 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-40?
The AD9273BSVZ-40 is available in 100-lead TQFP and 144-ball BGA packages.
- What is the operating temperature range of the AD9273BSVZ-40?
The operating temperature range is from -40°C to +85°C.
- What is the purpose of the 8 × 8 differential crosspoint switch in the AD9273BSVZ-40?
The 8 × 8 differential crosspoint switch supports continuous wave (CW) Doppler mode and allows for various multichannel configuration options.
- How does the AD9273BSVZ-40 handle overload conditions?
The component has an overload recovery time of less than 10 ns.
- What are the common applications of the AD9273BSVZ-40?
Common applications include medical imaging and ultrasound, as well as automotive radar systems.
- How is the gain of the LNA controlled in the AD9273BSVZ-40?
The gain of the LNA is controlled through the Serial Port Interface (SPI).
- What is the significance of the antialiasing filter in the AD9273BSVZ-40?
The antialiasing filter is programmable and includes 2nd-order low-pass and high-pass filters to prevent aliasing during signal conversion.
