Overview
The MAX146BCAP+ is a 12-bit data-acquisition system produced by Analog Devices Inc./Maxim Integrated. This device combines an 8-channel multiplexer, a high-bandwidth track/hold circuit, and a serial interface, making it suitable for a variety of applications requiring high conversion speed and low power consumption. The MAX146 operates from a single +2.7V to +3.6V supply, making it energy-efficient and versatile for different system designs.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Number of Channels | 8 channels |
| Supply Voltage | +2.7V to +3.6V |
| Conversion Rate | Up to 1 ksps (kilosamples per second) |
| Power Consumption | 54µA (at 1 ksps, 3V supply), 1µA (power-down mode) |
| Reference Voltage | Internal 2.5V reference |
| Input Configuration | Software-configurable for unipolar/bipolar and single-ended/differential operation |
| Serial Interface | SPI/QSPI/MICROWIRE/TMS320-compatible 4-wire serial interface |
| Package | 20-pin DIP or SSOP |
Key Features
- High conversion speed and low power consumption, making it suitable for battery-powered devices.
- Software-configurable analog inputs for unipolar or bipolar and single-ended or differential operation.
- SPI/QSPI/MICROWIRE/TMS320-compatible 4-wire serial interface for easy integration with various microcontrollers and digital signal processors.
- Internal 2.5V reference voltage, eliminating the need for an external reference in most applications.
- High-bandwidth track/hold circuit ensuring accurate sampling of high-frequency signals.
- Available in 20-pin DIP and SSOP packages, offering flexibility in board design.
Applications
- Industrial automation and control systems.
- Medical devices requiring precise analog-to-digital conversion.
- Aerospace and defense systems where low power consumption and high reliability are critical.
- Automotive systems, including sensor interfaces and data acquisition.
- Portable and battery-powered devices such as handheld instruments and data loggers.
Q & A
- What is the resolution of the MAX146BCAP+ ADC?
The MAX146BCAP+ has a resolution of 12 bits.
- How many analog input channels does the MAX146BCAP+ have?
The MAX146BCAP+ has 8 analog input channels.
- What is the operating voltage range of the MAX146BCAP+?
The MAX146BCAP+ operates from a single +2.7V to +3.6V supply.
- What is the maximum conversion rate of the MAX146BCAP+?
The MAX146BCAP+ can convert up to 1 ksps (kilosamples per second).
- How does the MAX146BCAP+ configure its analog inputs?
The MAX146BCAP+ allows software configuration for unipolar/bipolar and single-ended/differential operation of its analog inputs.
- What type of serial interface does the MAX146BCAP+ use?
The MAX146BCAP+ uses an SPI/QSPI/MICROWIRE/TMS320-compatible 4-wire serial interface.
- Does the MAX146BCAP+ require an external reference voltage?
No, the MAX146BCAP+ has an internal 2.5V reference voltage.
- In what packages is the MAX146BCAP+ available?
The MAX146BCAP+ is available in 20-pin DIP and SSOP packages.
- What are some typical applications of the MAX146BCAP+?
Typical applications include industrial automation, medical devices, aerospace and defense systems, automotive systems, and portable/battery-powered devices.
- How much power does the MAX146BCAP+ consume during operation?
The MAX146BCAP+ consumes 54µA at 1 ksps with a 3V supply and 1µA in power-down mode.
