Overview
The MAX147CCAP, produced by Analog Devices Inc./Maxim Integrated, is a 12-bit data-acquisition system that integrates an 8-channel multiplexer, high-bandwidth track/hold, and a serial interface. This device is designed for high conversion speed and low power consumption, making it suitable for a variety of applications requiring precise analog-to-digital conversion.
The MAX147 operates from a single supply voltage ranging from +2.7V to +5.25V, allowing for flexibility in system design. It supports both unipolar and bipolar, as well as single-ended and differential input configurations, which can be software-controlled. The device features a 4-wire serial interface compatible with SPI, QSPI, and MICROWIRE devices, and includes a serial strobe output for direct connection to TMS320-family digital signal processors.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Supply Voltage | VDD | +2.7 | - | +5.25 | V |
| Number of Channels | - | - | 8 | - | - |
| Resolution | - | - | 12-bit | - | - |
| Conversion Rate | fS | - | - | 133 ksps | - |
| Input Type | - | - | Single-Ended/Differential | - | - |
| Interface Type | - | - | SPI/QSPI/MICROWIRE | - | - |
| Operating Temperature Range | TA | -40 | - | +85 | °C |
| Storage Temperature Range | TA | -60 | - | +150 | °C |
| Lead Temperature (soldering, 10s) | - | - | +300 | °C |
Key Features
- Software Configurable Inputs: Analog inputs can be configured for unipolar/bipolar and single-ended/differential operation through software control.
- High Conversion Speed: Supports conversion rates up to 133 ksps.
- Low Power Consumption: Operates with low power consumption, and can be programmed to automatically shut down at the end of a conversion to reduce supply current.
- Internal/External Reference: The MAX147 requires an external reference voltage, while the MAX146 has an internal 2.5V reference.
- Serial Interface: 4-wire serial interface compatible with SPI, QSPI, and MICROWIRE devices, and includes a serial strobe output for direct connection to TMS320-family digital signal processors.
- Power-Down Modes: Hard-wired SHDN-bar pin and software-selectable power-down modes to minimize power consumption.
Applications
- Data Acquisition Systems: Ideal for applications requiring multi-channel data acquisition with high precision and low power consumption.
- Industrial Automation: Suitable for industrial control systems where multiple analog inputs need to be monitored and converted to digital signals.
- Medical Devices: Can be used in medical devices that require precise analog-to-digital conversion, such as patient monitoring systems.
- Aerospace and Defense: Applicable in aerospace and defense systems where high reliability and low power consumption are critical.
Q & A
- What is the supply voltage range for the MAX147?
The MAX147 operates from a single supply voltage ranging from +2.7V to +5.25V.
- How many channels does the MAX147 support?
The MAX147 supports 8 channels, which can be configured as single-ended or differential inputs.
- What is the resolution of the MAX147 ADC?
The MAX147 is a 12-bit analog-to-digital converter.
- What is the maximum conversion rate of the MAX147?
The MAX147 can convert at rates up to 133 ksps.
- What types of input configurations are supported by the MAX147?
The MAX147 supports both unipolar and bipolar, as well as single-ended and differential input configurations.
- Does the MAX147 have an internal reference voltage?
No, the MAX147 requires an external reference voltage.
- What type of serial interface does the MAX147 use?
The MAX147 uses a 4-wire serial interface compatible with SPI, QSPI, and MICROWIRE devices.
- How does the MAX147 manage power consumption?
The MAX147 can be programmed to automatically shut down at the end of a conversion to reduce supply current, and it also features hard-wired and software-selectable power-down modes.
- What is the operating temperature range for the MAX147?
The operating temperature range for the MAX147 is from -40°C to +85°C.
- What is the storage temperature range for the MAX147?
The storage temperature range for the MAX147 is from -60°C to +150°C.
