Overview
The AD7478AWARMZ-RL is a high-performance, 8-bit successive approximation register (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is designed for automotive applications and complies with the AEC-Q100 standard. It features a low noise, wide bandwidth track-and-hold amplifier capable of handling input frequencies exceeding 13 MHz. The ADC operates with a serial interface, making it suitable for integration with microprocessors or digital signal processors (DSPs).
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | Analog Devices Inc. | |
| Part Number | AD7478AWARMZ-RL | |
| Description | 1-Channel Single ADC SAR 1.2Msps 8-bit Serial Automotive AEC-Q100 8-Pin MSOP T/R | |
| Number of Bits | 8 | |
| Number of A/D Converters | 1 | |
| Sampling Rate | 1 MSPS | |
| Conversion Time | 700 ns max (14 SCLK cycles with SCLK at 20 MHz) | |
| Track-and-Hold Acquisition Time | 250 ns max | |
| Operating Temperature | -40°C to 85°C | |
| Package / Case | 8-MSOP (0.118", 3.00mm Width) | |
| RoHS Status | Lead free / RoHS Compliant | |
| VDD Range | 2.35 V to 5.25 V | |
| Current Consumption (Typical) | 2.5 mA (VDD = 4.75 V to 5.25 V), 1.2 mA (VDD = 2.35 V to 3.6 V) |
Key Features
- High Throughput with Low Power Consumption: The AD7478AWARMZ-RL achieves high throughput rates of up to 1 MSPS while maintaining low power dissipation, making it suitable for power-sensitive applications.
- Low Noise and Wide Bandwidth: The component features a low noise, wide bandwidth track-and-hold amplifier capable of handling input frequencies exceeding 13 MHz.
- Serial Interface: The ADC uses a serial interface controlled by the chip select (CS) and serial clock (SCLK) signals, allowing easy integration with microprocessors or DSPs.
- AEC-Q100 Compliance: Designed for automotive applications, the AD7478AWARMZ-RL complies with the AEC-Q100 standard, ensuring reliability and performance in harsh automotive environments.
- Flexible Power Management: The conversion rate can be managed through the serial clock speed, allowing for flexible power and performance optimization.
Applications
- Automotive Systems: Given its AEC-Q100 compliance, the AD7478AWARMZ-RL is well-suited for various automotive applications, including sensor interfaces, control systems, and data acquisition systems.
- Industrial Control Systems: The component's high accuracy and reliability make it a good fit for industrial control and monitoring systems.
- Medical Devices: Its low noise and high throughput capabilities make it suitable for medical devices that require precise analog-to-digital conversion.
- Consumer Electronics: The AD7478AWARMZ-RL can be used in consumer electronics that require high-performance ADCs, such as audio and video equipment).
Q & A
- What is the resolution of the AD7478AWARMZ-RL ADC?
The AD7478AWARMZ-RL is an 8-bit ADC.
- What is the maximum sampling rate of the AD7478AWARMZ-RL?
The maximum sampling rate is 1 MSPS.
- What is the operating temperature range of the AD7478AWARMZ-RL?
The operating temperature range is -40°C to 85°C.
- Is the AD7478AWARMZ-RL RoHS compliant?
Yes, the AD7478AWARMZ-RL is lead-free and RoHS compliant.
- What is the package type of the AD7478AWARMZ-RL?
The package type is 8-MSOP (0.118", 3.00mm Width).
- How is the conversion process initiated in the AD7478AWARMZ-RL?
The conversion process is initiated on the falling edge of the chip select (CS) signal.
- What is the typical current consumption of the AD7478AWARMZ-RL?
The typical current consumption is 2.5 mA (VDD = 4.75 V to 5.25 V) and 1.2 mA (VDD = 2.35 V to 3.6 V).
- Can the AD7478AWARMZ-RL handle high-frequency input signals?
Yes, the component can handle input frequencies exceeding 13 MHz.
- Is the AD7478AWARMZ-RL suitable for automotive applications?
Yes, it is designed for automotive applications and complies with the AEC-Q100 standard.
- How is the data output formatted in the AD7478AWARMZ-RL?
The data stream consists of four leading zeros followed by 8 bits of conversion data and four trailing zeros, provided MSB first.
