Overview
The AD7322BRUZ-REEL7, manufactured by Analog Devices Inc., is a 2-channel, 12-bit plus sign, successive approximation analog-to-digital converter (ADC). This device is designed using the *i*CMOS (industrial CMOS) process, which combines high voltage silicon with submicron CMOS and complementary bipolar technologies. This allows the AD7322 to accept true bipolar analog input signals and operate with increased performance, reduced power consumption, and a smaller package size compared to conventional CMOS processes. The AD7322 is housed in a 14-pin TSSOP package and is RoHS compliant. It features a high-speed serial interface compatible with SPI, QSPI, DSP, and MICROWIRE, and can operate at throughput rates up to 1 MSPS. The device includes a 2.5 V internal reference and supports external reference operation, making it versatile for various applications.
Key Specifications
| Specification | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | AD7322BRUZ-REEL7 |
| Package Type | TSSOP-14 |
| Pin Count | 14 |
| Number of Bits | 12-bit plus sign |
| Number of Analog Input Channels | 2 |
| Analog Input Voltage Range | ±10 V, ±5 V, ±2.5 V, 0 V to +10 V |
| Conversion Time | 0.8 µs |
| Sample Rate | Up to 1 MSPS |
| Operating Temperature Range | -40°C to +85°C |
| Supply Voltage | 3/5 V, ±12 V for bipolar inputs |
| Power Consumption | Maximum 31 mW at 1 MSPS |
| Interface | Serial, SPI-/QSPI-/DSP-/MICROWIRE-compatible |
Key Features
- True bipolar analog input signals with four software-selectable input ranges (±10 V, ±5 V, ±2.5 V, and 0 V to +10 V).
- Each analog input channel can be independently programmed to one of the four input ranges and configured as single-ended, true differential, or pseudo differential.
- High-speed serial interface with throughput rates up to 1 MSPS, compatible with SPI, QSPI, DSP, and MICROWIRE.
- Internal 2.5 V reference and support for external reference operation.
- Low power consumption, with a maximum of 31 mW at 1 MSPS.
- Channel sequencer for flexible channel configuration.
Applications
- Industrial automation and control systems where high accuracy and flexibility in analog input configurations are required.
- Medical devices that need precise analog-to-digital conversion with bipolar input capabilities.
- Aerospace and defense applications where robust and high-performance ADCs are necessary.
- Automotive systems that require reliable and efficient analog-to-digital conversion.
- Test and measurement equipment where high-speed and accurate data acquisition is crucial.
Q & A
- What is the AD7322BRUZ-REEL7's primary function?
The AD7322BRUZ-REEL7 is a 2-channel, 12-bit plus sign, successive approximation analog-to-digital converter (ADC).
- What package type does the AD7322BRUZ-REEL7 use?
The AD7322BRUZ-REEL7 is housed in a 14-pin TSSOP package.
- What are the available input voltage ranges for the AD7322BRUZ-REEL7?
The device supports input voltage ranges of ±10 V, ±5 V, ±2.5 V, and 0 V to +10 V.
- What is the maximum sample rate of the AD7322BRUZ-REEL7?
The maximum sample rate is up to 1 MSPS.
- Is the AD7322BRUZ-REEL7 RoHS compliant?
- What types of analog input configurations are supported by the AD7322BRUZ-REEL7?
The device supports single-ended, true differential, and pseudo differential analog input configurations.
- Can the AD7322BRUZ-REEL7 operate with an external reference voltage?
- What is the power consumption of the AD7322BRUZ-REEL7 at 1 MSPS?
The maximum power consumption at 1 MSPS is 31 mW.
- What is the operating temperature range of the AD7322BRUZ-REEL7?
- Is the AD7322BRUZ-REEL7 compatible with SPI, QSPI, DSP, and MICROWIRE interfaces?
