Overview
The MAX147ACAP+ is a 12-bit data-acquisition system produced by Analog Devices Inc./Maxim Integrated. This device combines an 8-channel multiplexer, high-bandwidth track/hold, and a serial interface, offering high conversion speed and low power consumption. The MAX147 operates from a single +2.7V to +5.25V supply, making it versatile for various applications. The analog inputs are software configurable for unipolar/bipolar and single-ended/differential operation, enhancing its flexibility in different measurement scenarios.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12-bit | |
| Number of Channels | 8 | |
| Supply Voltage Range | +2.7V to +5.25V | V |
| Conversion Rate | Up to 133ksps | samples per second |
| Input Configuration | Unipolar/Bipolar, Single-Ended/Differential | |
| Serial Interface | 4-wire SPI/QSPI/MICROWIRE compatible | |
| Reference Voltage | External reference required (VREF = 2.500V typical) | V |
| Power Consumption | Low power, < 60µA at reduced sampling rates | A |
| Package Type | 20-pin SSOP |
Key Features
- High conversion speed up to 133ksps
- Low power consumption, with supply current under 60µA at reduced sampling rates
- Software configurable analog inputs for unipolar/bipolar and single-ended/differential operation
- 4-wire serial interface compatible with SPI, QSPI, and MICROWIRE devices
- Serial strobe output for direct connection to TMS320-family digital signal processors
- Internal or external serial-interface clock for successive-approximation analog-to-digital conversions
- Hard-wired SHDN-bar pin and software-selectable power-down mode
- Quick turn-on time and automatic shutdown at the end of a conversion
Applications
The MAX147ACAP+ is suitable for a variety of data-acquisition applications, including:
- Industrial automation and control systems
- Medical devices requiring precise analog-to-digital conversion
- Aerospace and defense systems where low power and high accuracy are critical
- Automotive systems for sensor data acquisition
- Evaluation kits and development boards for comprehensive system testing
Q & A
- What is the resolution of the MAX147ACAP+?
The MAX147ACAP+ has a 12-bit resolution.
- How many channels does the MAX147ACAP+ support?
The MAX147ACAP+ supports 8 channels.
- What is the supply voltage range for the MAX147ACAP+?
The supply voltage range is +2.7V to +5.25V.
- What is the maximum conversion rate of the MAX147ACAP+?
The maximum conversion rate is up to 133ksps.
- Can the analog inputs of the MAX147ACAP+ be configured?
- What type of serial interface does the MAX147ACAP+ use?
The MAX147ACAP+ uses a 4-wire serial interface compatible with SPI, QSPI, and MICROWIRE devices.
- Does the MAX147ACAP+ require an external reference voltage?
- How does the MAX147ACAP+ manage power consumption?
The MAX147ACAP+ has low power consumption, with supply current under 60µA at reduced sampling rates, and features automatic shutdown at the end of a conversion.
- What package types are available for the MAX147ACAP+?
The MAX147ACAP+ is available in a 20-pin SSOP package.
- Are there any evaluation kits available for the MAX147ACAP+?
