Overview
The AD7812YRU is a high-speed, low-power, 10-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device operates from a single supply voltage ranging from 2.7 V to 5.5 V and is designed for a variety of applications requiring high-speed data conversion with low power consumption. The AD7812 features an onboard track and hold amplifier, a 2.5 V onboard reference, and a high-speed serial interface compatible with most digital signal processors (DSPs) and microcontrollers.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 10 |
| Sampling Rate | 350 kSPS |
| Number of Input Channels | 8 (single-ended or pseudo differential) |
| Input Signal Range | 0 V to VREF |
| Reference Input Range | 1.2 V to VDD |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Power Consumption | Typically 10 mW, reduced to 315 µW @ 10 kSPS at VDD = 3 V |
| Operating Temperature Range | -40°C to 105°C |
| Package Type | 20-Lead TSSOP |
| Data Interface | High-speed serial interface |
Key Features
- Low power, single supply operation with automatic power-down mode for reduced power consumption at lower throughput rates.
- On-chip 2.5 V reference circuit with the option to use an external reference.
- High-speed serial interface compatible with most 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
- Automotive systems: The AD7812 is qualified for automotive applications, making it suitable for various automotive sensing and monitoring systems.
- Industrial control systems: Its high-speed sampling and low power consumption make it ideal for industrial control and monitoring applications.
- Medical devices: The device's precision and reliability are beneficial in medical devices that require accurate data conversion.
- Consumer electronics: It can be used in consumer electronics that require high-speed data conversion with low power consumption.
Q & A
- What is the supply voltage range of the AD7812YRU?
The supply voltage range is from 2.7 V to 5.5 V.
- How many input channels does the AD7812YRU have?
The AD7812YRU has 8 input channels that can be configured as single-ended or pseudo differential.
- What is the sampling rate of the AD7812YRU?
The sampling rate is up to 350 kSPS.
- Does the AD7812YRU have an onboard reference?
Yes, it has an onboard 2.5 V reference circuit, but it also supports the use of an external reference.
- What is the typical power consumption of the AD7812YRU?
The typical power consumption is 10 mW, which can be reduced to 315 µW @ 10 kSPS at VDD = 3 V using the automatic power-down mode.
- What type of data interface does the AD7812YRU use?
The AD7812YRU uses a high-speed serial interface compatible with most DSPs and microcontrollers.
- Can the AD7812YRU be used in automotive applications?
Yes, the AD7812YRU is qualified for automotive applications.
- What is the operating temperature range of the AD7812YRU?
The operating temperature range is from -40°C to 105°C.
- What package types are available for the AD7812YRU?
The AD7812YRU is available in a 20-Lead TSSOP package among others.
- Can multiple AD7812YRU devices share the same serial bus?
Yes, multiple devices can share the same serial bus and be individually addressed in multipackage applications.
