Overview
The AD7322BRUZ is a high-performance, 12-bit plus sign, successive approximation register (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is designed to handle true bipolar input signals and offers a range of configurable input ranges and operating modes. The AD7322 is part of the iCMOS family, which provides enhanced performance, reduced power consumption, and a smaller package size compared to traditional CMOS processes.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 12-bit plus sign |
| Throughput Rate | Up to 1 MSPS |
| Input Ranges | ±10 V, ±5 V, ±2.5 V, 0 V to +10 V |
| Analog Input Channels | Two, configurable as single-ended, true differential, or pseudo differential |
| Reference | Internal 2.5 V, or external reference up to 3 V |
| Power Consumption | Maximum 31 mW at 1 MSPS |
| Operating Temperature | –40°C to +85°C |
| Package Type | 14-Lead TSSOP |
Key Features
- True Bipolar Input Ranges: The AD7322 can handle input signals in the ranges of ±10 V, ±5 V, ±2.5 V, and 0 V to +10 V.
- Configurable Input Channels: Each analog input channel can be independently programmed to be single-ended, true differential, or pseudo differential.
- High-Speed Serial Interface: The ADC features a SPI-/QSPI-/DSP-/MICROWIRE-compatible interface with throughput rates up to 1 MSPS.
- Low Power Consumption: Maximum power consumption of 31 mW at 1 MSPS throughput rate.
- Channel Sequencer: Allows for sequential conversion of the analog input channels.
- External Reference Option: Can operate with an external reference voltage up to 3 V, enabling true bipolar ±12 V input range with appropriate supply voltages.
Applications
The AD7322 is suitable for a variety of applications that require high-precision analog-to-digital conversion, including:
- Industrial automation and control systems.
- Medical devices and diagnostic equipment.
- Aerospace and defense systems.
- Automotive systems, particularly those requiring high-voltage and high-precision measurements.
- Data acquisition systems in scientific and research environments.
Q & A
- What is the resolution of the AD7322 ADC?
The AD7322 has a resolution of 12-bit plus sign.
- What are the available input ranges for the AD7322?
The AD7322 offers input ranges of ±10 V, ±5 V, ±2.5 V, and 0 V to +10 V.
- How many analog input channels does the AD7322 have?
The AD7322 has two analog input channels that can be configured as single-ended, true differential, or pseudo differential.
- What is the maximum throughput rate of the AD7322?
The maximum throughput rate of the AD7322 is up to 1 MSPS.
- Can the AD7322 operate with an external reference voltage?
Yes, the AD7322 can operate with an external reference voltage up to 3 V, enabling a true bipolar ±12 V input range.
- What is the power consumption of the AD7322 at 1 MSPS throughput rate?
The maximum power consumption of the AD7322 at 1 MSPS is 31 mW.
- What is the operating temperature range of the AD7322?
The operating temperature range of the AD7322 is –40°C to +85°C.
- What type of package does the AD7322 come in?
The AD7322 comes in a 14-Lead TSSOP package.
- Is the AD7322 compatible with various serial interfaces?
Yes, the AD7322 is compatible with SPI-, QSPI-, DSP-, and MICROWIRE-compatible interfaces.
- Does the AD7322 have a channel sequencer?
Yes, the AD7322 includes a channel sequencer for sequential conversion of the analog input channels.
