Overview
The AD7812WYRUZ, produced by Analog Devices Inc., is a high-speed, low-power, 10-bit analog-to-digital converter (ADC). This device operates from a single supply voltage ranging from 2.7 V to 5.5 V and is designed for applications requiring high-speed sampling and low power consumption. The AD7812 features an 8-channel input configuration, making it suitable for a variety of signal processing tasks. It includes an on-chip track/hold amplifier, a 2.5 V on-chip reference, and a high-speed serial interface compatible with most digital signal processors (DSPs) and microcontrollers.
Key Specifications
| Parameter | Value | Unit | Conditions/Comments |
|---|---|---|---|
| Supply Voltage (VDD) | 2.7 V to 5.5 V | V | For specified performance |
| Number of Channels | 8 | - | Single-ended or pseudo differential |
| Resolution | 10-bit | - | - |
| Sampling Rate | 350 kSPS | samples per second | - |
| On-chip Reference | 2.5 V ± 2.5% | V | Powered down when using external reference |
| Power Consumption | 10 mW (typical at 3 V) | mW | Normal operation; reduces significantly in power-down mode |
| Power-Down Current | 1 µA (full power-down) | µA | Full power-down mode |
| Package Types | 20-lead TSSOP, 20-lead SOIC (Wide) | - | - |
Key Features
- High-speed successive approximation ADC with a conversion time of 2.3 µs
- Low power consumption with automatic power-down modes to reduce power dissipation at lower throughput rates
- On-chip track/hold amplifier and 2.5 V on-chip reference
- High-speed serial interface compatible with DSPs and microcontrollers
- Input channels can be configured as single-ended or pseudo differential using the control register
- Hardware and software control for convert start and power-down
- Qualified for automotive applications
Applications
The AD7812WYRUZ is suitable for a variety of applications that require high-speed, low-power analog-to-digital conversion. These include:
- Automotive systems: Due to its qualification for automotive applications, it can be used in vehicle control systems, sensor interfaces, and other automotive electronics
- Industrial control systems: For high-speed data acquisition and control in industrial environments
- Medical devices: For precise and fast analog-to-digital conversion in medical equipment
- Embedded systems: In microcontroller and DSP-based systems requiring efficient and high-speed ADCs
Q & A
- What is the supply voltage range for the AD7812WYRUZ?
The supply voltage range is from 2.7 V to 5.5 V. - How many input channels does the AD7812WYRUZ have?
The AD7812WYRUZ has 8 input channels. - What is the resolution of the AD7812WYRUZ?
The resolution is 10 bits. - What is the maximum sampling rate of the AD7812WYRUZ?
The maximum sampling rate is 350 kSPS. - Does the AD7812WYRUZ have an on-chip reference?
Yes, it has a 2.5 V on-chip reference with ±2.5% accuracy. - How does the power consumption of the AD7812WYRUZ change in power-down mode?
The power consumption significantly reduces in power-down mode, down to 1 µA in full power-down mode. - What types of packages are available for the AD7812WYRUZ?
The device is available in 20-lead TSSOP and 20-lead SOIC (Wide) packages. - Can the AD7812WYRUZ be used in automotive applications?
Yes, it is qualified for automotive applications. - How can the input channels of the AD7812WYRUZ be configured?
The input channels can be configured as single-ended or pseudo differential using the control register. - What is the conversion time of the AD7812WYRUZ?
The conversion time is 2.3 µs.
