Overview
The AD8284WCSVZ, produced by Analog Devices Inc., is an integrated analog front end designed for low cost, compact size, flexibility, and ease of use. This component is optimized for dynamic performance and low power consumption, making it ideal for applications where a small package size is critical. It integrates a 4-channel differential multiplexer (mux), a 1-channel low noise preamplifier (LNA) with a programmable gain amplifier (PGA), an antialiasing filter (AAF), and a single 12-bit analog-to-digital converter (ADC). The AD8284 also includes a saturation detection circuit to handle high frequency overvoltage conditions.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 4-channel differential multiplexer + 1 direct-to-ADC channel |
| Programmable Gain Range | 17 dB to 35 dB in 6 dB steps |
| Analog-to-Digital Converter (ADC) | 12 bits, up to 60 MSPS |
| Signal-to-Noise Ratio (SNR) | 67 dB |
| Spurious Free Dynamic Range (SFDR) | 68 dBc |
| Input Referred Voltage Noise | 3.5 nV/√Hz at maximum gain |
| Antialiasing Filter (AAF) | Programmable third-order low-pass elliptic filter from 9 MHz to 15 MHz |
| Power Consumption | 345 mW at 12 bits per 60 MSPS |
| Package Type | 64-lead TQFP, 10 mm × 10 mm |
| Operating Temperature Range | −40°C to +105°C |
| RoHS Compliance | Yes |
Key Features
- 4-channel differential multiplexer (mux) to LNA, PGA, and AAF
- 1 direct-to-ADC channel
- Programmable gain amplifier (PGA) with gain range of 17 dB to 35 dB in 6 dB steps
- Low noise preamplifier (LNA)
- Antialiasing filter (AAF) with programmable third-order low-pass elliptic filter from 9 MHz to 15 MHz
- Single 12-bit analog-to-digital converter (ADC) with up to 60 MSPS conversion rate
- Saturation detection circuit for high frequency overvoltage conditions
- Low power consumption of 345 mW at 12 bits per 60 MSPS
- Compact 64-lead TQFP package, 10 mm × 10 mm
- RoHS compliant and specified over the automotive temperature range of −40°C to +105°C
Applications
- Automotive radar systems
- Adaptive cruise control
- Collision avoidance
- Blind spot detection
- Self-parking systems
- Electronic bumper systems
Q & A
- Q: What is the AD8284WCSVZ?
The AD8284WCSVZ is an integrated analog front end designed for low cost, compact size, flexibility, and ease of use. It includes a 4-channel differential multiplexer, a low noise preamplifier, a programmable gain amplifier, an antialiasing filter, and a 12-bit analog-to-digital converter.
- Q: What are the key specifications of the AD8284WCSVZ?
The key specifications include a programmable gain range of 17 dB to 35 dB, a 12-bit ADC with up to 60 MSPS conversion rate, SNR of 67 dB, SFDR of 68 dBc, and input referred voltage noise of 3.5 nV/√Hz at maximum gain.
- Q: What is the power consumption of the AD8284WCSVZ?
The power consumption is 345 mW at 12 bits per 60 MSPS.
- Q: What is the operating temperature range of the AD8284WCSVZ?
The operating temperature range is −40°C to +105°C.
- Q: Is the AD8284WCSVZ RoHS compliant?
Yes, the AD8284WCSVZ is RoHS compliant.
- Q: What are the typical applications of the AD8284WCSVZ?
Typical applications include automotive radar systems, adaptive cruise control, collision avoidance, blind spot detection, self-parking systems, and electronic bumper systems.
- Q: What is the package type of the AD8284WCSVZ?
The package type is a 64-lead TQFP, measuring 10 mm × 10 mm.
- Q: Does the AD8284WCSVZ have a saturation detection circuit?
Yes, it includes a saturation detection circuit for high frequency overvoltage conditions.
- Q: How does the AD8284WCSVZ handle antialiasing?
The AD8284WCSVZ includes a programmable third-order low-pass elliptic filter from 9 MHz to 15 MHz as an antialiasing filter.
- Q: Can the gain of the AD8284WCSVZ be programmed?
Yes, the gain can be programmed from 17 dB to 35 dB in 6 dB steps.
