Overview
The MAX1249BCPE+ is a 10-bit data-acquisition system produced by Analog Devices Inc./Maxim Integrated. This device combines a 4-channel multiplexer, high-bandwidth track/hold, and a serial interface, offering high conversion speed and low power consumption. It operates from a single supply voltage ranging from +2.7V to +5.25V, making it versatile for various applications. The MAX1249 is particularly notable for its software-configurable analog inputs, which can be set for unipolar or bipolar and single-ended or differential operation.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Resolution | 10 bits | Number of bits in the analog-to-digital conversion result |
| Supply Voltage | +2.7V to +5.25V | Operating voltage range of the device |
| Number of Channels | 4 | Number of analog input channels available |
| Input Configuration | Unipolar/Bipolar, Single-Ended/Differential | Software-configurable input modes |
| Reference Voltage | External Reference Required | The MAX1249 requires an external reference voltage for operation |
| Serial Interface | 4-wire SPI/QSPI/MICROWIRE compatible | Type of serial interface used for data communication |
| Operating Temperature | 0°C to 70°C | Temperature range over which the device operates |
| Package Type | 16-DIP (0.300", 7.62mm) | Physical package of the device |
| Power Consumption | 1.2mA (typical) | Current consumption of the device during operation |
Key Features
- Low Power Consumption: The MAX1249 consumes only 1.2mA of current, making it suitable for power-sensitive applications.
- High Conversion Speed: The device supports high-speed successive-approximation analog-to-digital conversions.
- Software-Configurable Inputs: Analog inputs can be configured for unipolar or bipolar and single-ended or differential operation.
- Serial Interface Compatibility: The 4-wire serial interface is compatible with SPI, QSPI, and MICROWIRE devices without external logic.
- Power-Down Modes: The device features hard-wired and software-selectable power-down modes to reduce power consumption between conversions.
- Reference Buffer Amplifier: Includes a reference-buffer amplifier with a ±1.5% voltage adjustment range.
Applications
The MAX1249 is suitable for a variety of applications that require low-power, high-speed analog-to-digital conversion. These include:
- Data Acquisition Systems: Ideal for systems that need to acquire and convert multiple analog signals efficiently.
- Industrial Automation: Used in industrial control systems where low power consumption and high accuracy are crucial.
- Medical Devices: Suitable for medical equipment that requires precise and low-power analog-to-digital conversion.
- Embedded Systems: Can be integrated into embedded systems where power efficiency and compact design are important.
Q & A
- What is the resolution of the MAX1249 ADC?
The MAX1249 has a resolution of 10 bits.
- What is the operating voltage range of the MAX1249?
The MAX1249 operates from a single supply voltage ranging from +2.7V to +5.25V.
- How many analog input channels does the MAX1249 have?
The MAX1249 has 4 analog input channels.
- Can the MAX1249 be configured for different input modes?
Yes, the MAX1249 can be configured for unipolar or bipolar and single-ended or differential input modes.
- Does the MAX1249 have an internal reference voltage?
No, the MAX1249 requires an external reference voltage for operation.
- What type of serial interface does the MAX1249 use?
The MAX1249 uses a 4-wire serial interface compatible with SPI, QSPI, and MICROWIRE devices.
- What is the typical power consumption of the MAX1249?
The typical power consumption of the MAX1249 is 1.2mA.
- Does the MAX1249 support power-down modes?
Yes, the MAX1249 supports both hard-wired and software-selectable power-down modes.
- What is the operating temperature range of the MAX1249?
The operating temperature range of the MAX1249 is from 0°C to 70°C.
- In what package types is the MAX1249 available?
The MAX1249 is available in a 16-DIP package.
