Overview
The ADAR7251WBCSZ-RL is a high-performance 16-bit, 4-channel analog-to-digital converter (ADC) designed by Analog Devices Inc. Specifically tailored for use in automotive radar systems, this ADC features four simultaneous sampling channels. Each channel includes a low noise amplifier (LNA), a programmable gain amplifier (PGA), an equalizer, a multibit Σ-Δ ADC, and a decimation filter. This integration makes it ideal for demanding radar applications such as automotive LSR-FMCW or FSK-FMCW radar systems. The ADAR7251WBCSZ-RL offers high resolution and low noise performance, ensuring accurate and reliable data acquisition for radar signal processing.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16-bit |
| Number of ADCs | 4 |
| Number of Input Channels | 4 differential simultaneous sampling channels |
| Sampling Rate | Up to 1.8 MSPS |
| Digital Interface Type | Parallel, Serial (4-Wire, SPI) |
| Input Type | Differential |
| Voltage Reference | Internal, External |
| Voltage Supply Source | 3.3 V (Analog and Digital) |
| Operating Temperature Range | -40°C to +125°C |
| Package/Case | 48-Lead LFCSP_SS |
| RoHS Status | Compliant |
Key Features
- High precision ADC with low input noise and wide bandwidth
- Four simultaneous sampling channels with LNA, PGA, equalizer, multibit Σ-Δ ADC, and decimation filter
- No active antialiasing filter required
- Flexible data port supporting serial or parallel mode
- Supports FSK mode for FMCW radar systems
- On-chip 1.5 V reference and internal oscillator/PLL input (16 MHz to 54 MHz)
- High speed serial data interface and SPI control
- Two general-purpose inputs/outputs
Applications
- Automotive LSR systems (LSR-FMCW or FSK-FMCW radar systems)
- Data acquisition systems
- Healthcare monitoring
Q & A
- Q: What is the ADAR7251WBCSZ-RL used for?
A: The ADAR7251WBCSZ-RL is used in automotive radar systems, data acquisition systems, and healthcare monitoring due to its high-performance ADC capabilities.
- Q: What is the resolution and sampling rate of the ADAR7251WBCSZ-RL?
A: The ADAR7251WBCSZ-RL has a 16-bit resolution and can sample up to 1.8 MSPS.
- Q: Does the ADAR7251WBCSZ-RL require an active antialiasing filter?
A: No, the ADAR7251WBCSZ-RL does not require an active antialiasing filter.
- Q: What is the operating temperature range of the ADAR7251WBCSZ-RL?
A: The operating temperature range is -40°C to +125°C.
- Q: What type of digital interface does the ADAR7251WBCSZ-RL support?
A: The ADAR7251WBCSZ-RL supports both parallel and serial (4-Wire, SPI) digital interfaces.
- Q: What is the voltage supply requirement for the ADAR7251WBCSZ-RL?
A: The ADAR7251WBCSZ-RL operates on a single 3.3 V supply for both analog and digital sections.
- Q: Does the ADAR7251WBCSZ-RL have on-chip voltage reference and oscillator?
A: Yes, it has an on-chip 1.5 V reference and an internal oscillator/PLL input (16 MHz to 54 MHz).
- Q: What is the package type of the ADAR7251WBCSZ-RL?
A: The ADAR7251WBCSZ-RL comes in a 48-Lead LFCSP_SS package.
- Q: Is the ADAR7251WBCSZ-RL RoHS compliant?
A: Yes, the ADAR7251WBCSZ-RL is RoHS compliant.
- Q: What warranty is offered for the ADAR7251WBCSZ-RL?
A: A 1-year warranty is offered for the ADAR7251WBCSZ-RL, covering defects in materials and workmanship under normal use.
