Overview
The MAX1275AETC+T 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 1.8 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 MAX1275 is designed for applications requiring high-speed conversion, low power consumption, and excellent AC and DC performance.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Sampling Rate | Up to 1.8 Msps | |
| Resolution | 12-bit | |
| Supply Voltage | +4.75V to +5.25V | V |
| Power Dissipation | 45 mW (typ) | mW |
| Shutdown Current | 1 µA (max) | µA |
| Input Type | True-Differential | |
| Analog Input Range (MAX1275) | -VREF/2 to +VREF/2 | V |
| Reference Input Voltage | 1.0 V to VDD + 50mV | V |
| Full-Power Bandwidth | 20 MHz | MHz |
| Signal-to-Noise Ratio (SNR) | 70 dB at 525kHz input frequency | dB |
| Package Type | 12-pin TQFN | |
| Operating Temperature Range | -40°C to +85°C | °C |
Key Features
- High-speed, SPI-compatible, 3-wire serial interface
- Internal true-differential track/hold (T/H)
- External reference required
- No pipeline delays
- Partial and full power-down modes for low 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
- Data acquisition
- Communications
- Portable instruments
Q & A
- What is the maximum sampling rate of the MAX1275AETC+T? The MAX1275AETC+T can sample at up to 1.8 Msps.
- What type of analog input does the MAX1275AETC+T have? The MAX1275AETC+T has bipolar true-differential analog inputs.
- What is the power dissipation of the MAX1275AETC+T? The typical power dissipation is 45 mW.
- What are the power-down modes available in the MAX1275AETC+T? The device features partial and full power-down modes, reducing supply current to 1 mA (typ) and 1 µA (max), respectively.
- What is the operating temperature range of the MAX1275AETC+T? The operating temperature range is -40°C to +85°C.
- What type of interface does the MAX1275AETC+T use? The device uses a standard SPI/QSPI/MICROWIRE interface.
- Does the MAX1275AETC+T require an external reference? Yes, the MAX1275AETC+T requires an external reference.
- What is the signal-to-noise ratio (SNR) of the MAX1275AETC+T at 525 kHz input frequency? The SNR is 70 dB at 525 kHz input frequency.
- What is the full-power bandwidth of the MAX1275AETC+T? The full-power bandwidth is 20 MHz.
- In what package is the MAX1275AETC+T available? The MAX1275AETC+T is available in a 12-pin TQFN package.
