Overview
The MAX1275ACTC+ is a high-performance, low-power, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device operates at up to 1.8 million samples per second (Msps) and is designed for applications requiring high-speed conversion, low power consumption, and excellent AC and DC performance.
The MAX1275 features true-differential inputs, which provide better noise immunity, distortion improvements, and a wider dynamic range compared to single-ended inputs. 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
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Sampling Rate | Up to 1.8 Msps |
| Supply Voltage | +4.75V to +5.25V |
| Power Dissipation | 45 mW (typ) |
| Shutdown Current | 1 µA (max) |
| Interface | High-Speed, SPI-Compatible, 3-Wire Serial Interface |
| S/N + D | 70 dB at 525 kHz input frequency |
| Input Type | True-Differential, Bipolar (MAX1275) |
| Package | 12-pin TQFN |
| Temperature Range | -40°C to +85°C |
Key Features
- High-speed sampling rate of up to 1.8 Msps
- Low power dissipation of 45 mW (typ)
- Low shutdown current of 1 µA (max)
- High-Speed, SPI-Compatible, 3-Wire Serial Interface
- True-differential inputs for improved noise immunity and dynamic range
- No pipeline delays
- External reference required
- Partial and full power-down modes for reduced power consumption between conversions
- Separate power-supply input (VL) for direct interfacing to +1.8V to VDD digital logic
Applications
The MAX1275ACTC+ is ideal for various applications that require high-speed, low-power, and accurate analog-to-digital conversion. These include:
- Industrial process control
- Motor control
- Base-station applications
- Data acquisition systems
- Communications equipment
- Portable instruments
Q & A
- What is the maximum sampling rate of the MAX1275ACTC+?
The MAX1275ACTC+ can sample at up to 1.8 million samples per second (Msps).
- What is the supply voltage range for the MAX1275ACTC+?
The device operates from a single supply voltage of +4.75V to +5.25V.
- What type of input does the MAX1275ACTC+ have?
The MAX1275ACTC+ has true-differential, bipolar analog inputs.
- What is the power dissipation of the MAX1275ACTC+?
The typical power dissipation is 45 mW.
- What is the shutdown current of the MAX1275ACTC+?
The maximum shutdown current is 1 µA.
- What interface does the MAX1275ACTC+ use?
The device uses a high-speed, SPI-compatible, 3-wire serial interface.
- What is the signal-to-noise plus distortion (S/N + D) ratio of the MAX1275ACTC+?
The S/N + D ratio is 70 dB at a 525 kHz input frequency.
- What package type is the MAX1275ACTC+ available in?
The device is available in a 12-pin TQFN package.
- What is the operating temperature range of the MAX1275ACTC+?
The device operates over an extended temperature range of -40°C to +85°C.
- Does the MAX1275ACTC+ require an external reference voltage?
