Overview
The MAX1225ETC+ is a high-performance, low-power, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device operates at a sampling rate of up to 1.5 million samples per second (Msps) and is designed for applications requiring high-speed data conversion with minimal power consumption. The MAX1225 features true-differential inputs, which provide better noise immunity, distortion improvements, and a wider dynamic range compared to single-ended inputs. It is suitable for a variety of industrial and communication applications due to its fast conversion speed, low power dissipation, and good AC and DC performance.
Key Specifications
| Parameter | Value |
|---|---|
| Sampling Rate | Up to 1.5 Msps |
| Resolution | 12-bit |
| Power Dissipation | 18 mW (typ) |
| Shutdown Current | 1 µA (max) |
| Supply Voltage (Analog) | +2.7V to +3.6V |
| Supply Voltage (Digital) | +1.8V to +3.6V |
| Operating Temperature | -40°C to +85°C |
| Interface | SPI™/QSPI™/MICROWIRE™ compatible, 3-wire serial interface |
| Signal-to-Noise Ratio (SNR) | 69 dB at 525 kHz input frequency |
| Package | 12-pin TQFN |
Key Features
- High-speed, SPI-compatible, 3-wire serial interface
- True-differential track/hold (T/H) for improved noise immunity and dynamic range
- External reference input
- No pipeline delays
- Partial and full power-down modes for reduced power consumption
- Separate power-supply input (VL) for direct interfacing to +1.8V to VDD digital logic
- Small 12-pin TQFN package
Applications
- Industrial process control
- Motor control
- Base-station applications
- Bill validation
- Communications
- Data acquisition
- Portable instrumentation
Q & A
- What is the sampling rate of the MAX1225? The MAX1225 operates at a sampling rate of up to 1.5 Msps.
- What is the resolution of the MAX1225? The MAX1225 is a 12-bit ADC.
- What is the typical power dissipation of the MAX1225? The typical power dissipation is 18 mW.
- What is the shutdown current of the MAX1225? The shutdown current is 1 µA (max).
- What is the operating temperature range of the MAX1225? The operating temperature range is -40°C to +85°C.
- What type of interface does the MAX1225 use? The MAX1225 uses a SPI™/QSPI™/MICROWIRE™ compatible, 3-wire serial interface.
- Does the MAX1225 have true-differential inputs? Yes, the MAX1225 features true-differential inputs.
- Can the MAX1225 operate in power-down modes? Yes, the MAX1225 has partial and full power-down modes.
- What is the package type of the MAX1225? The MAX1225 comes in a 12-pin TQFN package.
- What are some common applications of the MAX1225? Common applications include industrial process control, motor control, base-station applications, bill validation, communications, data acquisition, and portable instrumentation.
