Overview
The MAX1249BCEE+ 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 of +2.7V to +5.25V, making it versatile for various applications. The MAX1249 is particularly useful in systems requiring multiple analog input channels with the flexibility of unipolar or bipolar and single-ended or differential conversions.
Key Specifications
| Specification | Value |
|---|---|
| Converter Resolution | 10-bit |
| Number of Channels | 4 (single-ended), 2 (differential) |
| Operating Supply Voltage | +2.7V to +5.25V |
| Sampling Speed | 133 ksps |
| Integral Nonlinearity (INL) | ±1 LSB |
| Operating Temperature | 0°C to 70°C |
| Package/Case | 16-SSOP (0.154", 3.90mm Width) |
| Mounting | SMD |
Key Features
- 4-channel multiplexer with single-ended or differential input configurations
- High-bandwidth track/hold circuitry
- Serial interface compatible with SPI™/QSPI™ and MICROWIRE™ devices
- Internal or external serial-interface clock options
- Software-configurable unipolar or bipolar conversion modes
- Low power consumption: 1.2mA typical
- Reference-buffer amplifier with ±1.5% voltage adjustment range
- Hard-wired SHDN pin and software-selectable power-down modes
Applications
- Data acquisition systems in industrial automation
- Medical devices requiring multiple analog input channels
- Aerospace and defense applications where low power and high accuracy are crucial
- Automotive systems for sensor data acquisition
- Embedded systems and IoT devices needing efficient analog-to-digital conversion
Q & A
- What is the operating supply voltage range of the MAX1249BCEE+?
The MAX1249BCEE+ operates from a single supply voltage of +2.7V to +5.25V.
- How many channels does the MAX1249BCEE+ support?
The device supports 4 single-ended or 2 differential channels.
- What is the resolution of the MAX1249BCEE+ ADC?
The MAX1249BCEE+ has a 10-bit resolution.
- What is the sampling speed of the MAX1249BCEE+?
The sampling speed is 133 ksps.
- Can the MAX1249BCEE+ be configured for unipolar or bipolar conversions?
Yes, the device can be software-configured for unipolar or bipolar conversions.
- What types of serial interfaces are supported by the MAX1249BCEE+?
The device supports SPI™/QSPI™ and MICROWIRE™ serial interfaces.
- Does the MAX1249BCEE+ have an internal reference voltage?
No, the MAX1249 requires an external reference voltage, unlike the MAX1248 which has an internal 2.5V reference.
- What are the power-down modes available on the MAX1249BCEE+?
The device has full power-down and software-selectable power-down modes.
- What is the typical power consumption of the MAX1249BCEE+?
The typical power consumption is 1.2mA.
- What is the operating temperature range of the MAX1249BCEE+?
The operating temperature range is 0°C to 70°C.
