Overview
The MAX1275BETC from Analog Devices Inc./Maxim Integrated is a high-performance, low-power, 12-bit analog-to-digital converter (ADC) designed for a variety of applications requiring high-speed and precision data conversion. This device operates at up to 1.8 million samples per second (Msps) and features true-differential inputs, which provide better noise immunity, distortion improvements, and a wider dynamic range compared to single-ended inputs.
The MAX1275BETC is part of the MAX1274/MAX1275 family, with the MAX1275 specifically offering bipolar analog input. It operates from a single supply voltage of +4.75V to +5.25V and requires an external reference voltage. The device is available in a compact 12-pin TQFN package and supports an extended temperature range of -40°C to +85°C.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 12 bits |
| Sampling Rate | Up to 1.8 Msps |
| Analog Input Type | Bipolar (MAX1275) |
| Supply Voltage | +4.75V to +5.25V |
| Power Consumption (Active) | Typically 1500 mA at VL = 5V |
| Power Consumption (Partial Power-Down) | Typically 1 mA |
| Power Consumption (Full Power-Down) | Maximum 1 µA |
| Interface | SPI™/QSPI™/MICROWIRE™ |
| Package Type | 12-pin TQFN (4x4 mm) |
| Operating Temperature Range | -40°C to +85°C |
Key Features
- True-Differential Inputs: Offers better noise immunity, distortion improvements, and a wider dynamic range compared to single-ended inputs.
- Low Power Consumption: Features partial and full power-down modes to reduce supply current to 1 mA and 1 µA, respectively.
- High-Speed Conversion: Operates at up to 1.8 Msps, making it suitable for high-speed data acquisition applications.
- Compact Package: Available in a 12-pin TQFN package, which is ideal for space-constrained designs.
- Extended Temperature Range: Supports an operating temperature range of -40°C to +85°C, making it suitable for various environmental conditions.
- Easy Interface: Uses a standard SPI™/QSPI™/MICROWIRE™ interface, which simplifies integration with microprocessors and DSPs.
Applications
- Industrial Process Control: Ideal for monitoring and controlling industrial processes due to its high accuracy and reliability.
- Motor Control: Suitable for motor control applications where precise and fast data conversion is required.
- Base-Station Applications: Used in base stations for telecommunications due to its low power consumption and high-speed conversion capabilities).
Q & A
- What is the resolution of the MAX1275BETC ADC?
The MAX1275BETC has a resolution of 12 bits.
- What is the maximum sampling rate of the MAX1275BETC?
The MAX1275BETC can sample at up to 1.8 Msps.
- What type of analog input does the MAX1275BETC have?
The MAX1275BETC has a bipolar analog input.
- What is the supply voltage range for the MAX1275BETC?
The supply voltage range is +4.75V to +5.25V.
- How much power does the MAX1275BETC consume in active mode?
In active mode, the MAX1275BETC typically consumes 1500 mA at VL = 5V.
- What are the power-down modes available on the MAX1275BETC?
The MAX1275BETC features partial and full power-down modes, reducing supply current to 1 mA and 1 µA, respectively.
- What interface does the MAX1275BETC use for data transfer?
The MAX1275BETC uses a standard SPI™/QSPI™/MICROWIRE™ interface.
- In what package is the MAX1275BETC available?
The MAX1275BETC is available in a 12-pin TQFN package.
- What is the operating temperature range of the MAX1275BETC?
The operating temperature range is -40°C to +85°C.
- What are some typical applications for the MAX1275BETC?
Typical applications include industrial process control, motor control, and base-station applications.
