Overview
The AD7490WBCSZ, produced by Analog Devices Inc., is a 12-bit high-speed, low-power, 16-channel successive approximation analog-to-digital converter (ADC). This device operates from a single 2.7 V to 5.25 V power supply and features throughput rates up to 1 MSPS. It is designed with advanced techniques to achieve very low power dissipation at high throughput rates, making it suitable for a variety of applications requiring high performance and efficiency.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 12-bit | |
| Number of Channels | 16 | |
| Throughput Rate | Up to 1 MSPS | |
| Power Supply Range | 2.7 V to 5.25 V | |
| Power Consumption (3 V supply) | 1.8 mA (max throughput) | |
| Power Consumption (5 V supply) | 2.5 mA (max throughput) | |
| Full Shutdown Current | 0.5 µA (max) | |
| Input Frequency Range | Excess of 1 MHz | |
| Package Type | 32-Lead LFCSP | |
| Operating Temperature Range | -40°C to +125°C |
Key Features
- High-speed serial interface compatible with SPI/QSPI/MICROWIRE/DSP.
- No pipeline delays, allowing for precise control of the sampling instant via the CS input.
- Low noise, wide bandwidth track-and-hold amplifier.
- Channel sequencer for preprogrammed selection of channels to be converted sequentially.
- VDRIVE function allows the serial interface to connect directly to either 3 V or 5 V processor systems independent of VDD.
- Flexible power and serial clock speed management.
- Full shutdown mode for maximum power efficiency.
Applications
- Multichannel system monitoring.
- Battery-powered equipment.
- Power line monitoring.
- Data acquisition, instrumentation, and process control.
- Automotive applications (AEC-Q100 qualified).
Q & A
- What is the resolution of the AD7490WBCSZ ADC?
The AD7490WBCSZ has a 12-bit resolution.
- How many channels does the AD7490WBCSZ support?
The AD7490WBCSZ supports 16 single-ended analog input channels.
- What is the maximum throughput rate of the AD7490WBCSZ?
The maximum throughput rate is up to 1 MSPS.
- What is the power supply range for the AD7490WBCSZ?
The power supply range is from 2.7 V to 5.25 V.
- How much power does the AD7490WBCSZ consume at maximum throughput with a 3 V supply?
The power consumption is 1.8 mA at maximum throughput with a 3 V supply.
- What is the full shutdown current of the AD7490WBCSZ?
The full shutdown current is 0.5 µA maximum.
- What types of packages are available for the AD7490WBCSZ?
The AD7490WBCSZ is available in 32-Lead LFCSP and 28-Lead TSSOP packages.
- Is the AD7490WBCSZ qualified for automotive applications?
Yes, the AD7490WBCSZ is AEC-Q100 qualified for automotive applications.
- How does the channel sequencer function in the AD7490WBCSZ?
The channel sequencer allows for a preprogrammed selection of channels to be converted sequentially.
- What is the purpose of the VDRIVE function in the AD7490WBCSZ?
The VDRIVE function allows the serial interface to connect directly to either 3 V or 5 V processor systems independent of VDD.
