Overview
The MAX1279BCTC+T is a high-performance, low-power, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1277/MAX1279 series, known for its fast conversion speed, excellent AC and DC performance, and low power dissipation. The MAX1279 features true-differential inputs, which provide better noise immunity and distortion improvements compared to single-ended inputs. It operates from a single supply voltage of +2.7V to +3.6V and includes an internal 2.048V reference. The device is suitable for various applications, including industrial process control, motor control, communications, and data acquisition.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Sampling Rate | 1.5 | 1.5 | 1.5 | Msps | |
| Power Dissipation | 22 | mW | |||
| Shutdown Current | 1 | µA | |||
| Input Voltage Range | MAX1279 | -VREF / 2 | +VREF / 2 | V | |
| Reference Output Voltage | Static, TA = +25°C | 2.038 | 2.048 | 2.058 | V |
| Signal-to-Noise Ratio (SNR) | at 525kHz Input Frequency | 68.5 | dB | ||
| Full-Power Bandwidth | -3dB point, small-signal method | 15 | MHz | ||
| Minimum Conversion Time | tCONV | 0.667 | µs | ||
| Track-and-Hold Acquisition Time | tACQ | 125 | ns | ||
| Aperture Delay | 5 | ns | |||
| Aperture Jitter | 30 | ps | |||
| External Clock Frequency | fSCLK | 24 | MHz |
Key Features
- High-speed, 1.5Msps sampling rate
- Low power dissipation: 22mW (typ)
- Low shutdown current: 1µA (max)
- True-differential analog inputs for improved noise immunity and distortion reduction
- Internal 2.048V reference
- No pipeline delays
- High-speed, SPI-compatible, 3-wire serial interface
- Small 12-pin TQFN package
- Extended temperature range: -40°C to +85°C
- 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
Applications
- Industrial process control
- Motor control
- Communications
- Data acquisition
- Portable instrumentation
- Bill validation
Q & A
- What is the sampling rate of the MAX1279BCTC+T?
The MAX1279BCTC+T has a sampling rate of up to 1.5 Msps. - What is the power dissipation of the MAX1279BCTC+T?
The typical power dissipation is 22 mW. - What type of analog inputs does the MAX1279BCTC+T have?
The MAX1279BCTC+T features true-differential analog inputs. - What is the internal reference voltage of the MAX1279BCTC+T?
The internal reference voltage is 2.048 V. - What is the temperature range of the MAX1279BCTC+T?
The device operates over an extended temperature range of -40°C to +85°C. - What is the package type of the MAX1279BCTC+T?
The device comes in a 12-pin TQFN package. - Does the MAX1279BCTC+T have power-down modes?
Yes, it has partial and full power-down modes to reduce power consumption. - What is the typical shutdown current of the MAX1279BCTC+T?
The typical shutdown current is 1 µA. - What interface does the MAX1279BCTC+T use for data transfer?
The device uses a high-speed, SPI-compatible, 3-wire serial interface. - What are some common applications of the MAX1279BCTC+T?
Common applications include industrial process control, motor control, communications, data acquisition, and portable instrumentation.
