Overview
The MAX1279ACTC+T is a high-speed, low-power, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1277/MAX1279 family, known for its true-differential inputs and high performance in various applications. The MAX1279 features a bipolar analog input, making it suitable for a wide range of signal types. It operates from a single supply voltage of +2.7V to +3.6V and includes an internal 2.048V reference voltage. The device is designed for easy interfacing with digital signal processors (DSPs) and microprocessors through a standard SPI/QSPI/MICROWIRE interface.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Supply Voltage (VDD) | 2.7 | 3.6 | V | ||
| Internal Reference Voltage (REF) | Static, TA = +25°C | 2.038 | 2.048 | 2.058 | V |
| Sampling Rate | 1.5 | Msps | |||
| Differential Input Voltage Range (AIN+ - AIN-) | MAX1279 | -VREF / 2 | +VREF / 2 | V | |
| Input Capacitance Per Input Pin | 16 | pF | |||
| Power Consumption (Partial Power-Down) | VDD = +2.7V | 2 | mA | ||
| Power Consumption (Full Power-Down) | VDD = +2.7V | 1 | µA |
Key Features
- True-Differential Inputs: Offers better noise immunity, distortion improvements, and a wider dynamic range compared to single-ended inputs.
- High-Speed Operation: Operates at up to 1.5 Msps.
- Low Power Consumption: Features partial and full power-down modes to reduce supply current to 2mA and 1µA, respectively.
- Internal Reference: Includes a 2.048V internal reference voltage.
- Flexible Interface: Standard SPI/QSPI/MICROWIRE interface for easy connection to DSPs and microprocessors.
- Bipolar Analog Input: Suitable for applications requiring bipolar signal handling.
Applications
- Data Acquisition Systems: Ideal for high-speed data acquisition in various industrial, medical, and automotive applications.
- Industrial Automation: Used in control systems, monitoring, and automation where high accuracy and speed are required.
- Medical Devices: Suitable for medical equipment requiring precise and fast analog-to-digital conversion.
- Aerospace and Defense: Applied in systems needing robust and high-performance ADCs.
Q & A
- What is the maximum sampling rate of the MAX1279?
The MAX1279 can operate at up to 1.5 Msps.
- What is the supply voltage range for the MAX1279?
The device operates from a single supply voltage of +2.7V to +3.6V.
- Does the MAX1279 have an internal reference voltage?
Yes, it includes an internal 2.048V reference voltage.
- What type of analog input does the MAX1279 have?
The MAX1279 has a bipolar analog input.
- How does the MAX1279 interface with digital systems?
It uses a standard SPI/QSPI/MICROWIRE interface.
- What are the power-down modes available in the MAX1279?
The device features partial and full power-down modes.
- What is the typical power consumption in partial power-down mode?
The typical power consumption in partial power-down mode is 2mA.
- What is the maximum power consumption in full power-down mode?
The maximum power consumption in full power-down mode is 1µA.
- What is the input capacitance per input pin?
The input capacitance per input pin is 16 pF.
- Is the MAX1279 suitable for high-speed applications?
Yes, it is designed for high-speed applications with true-differential inputs and a high sampling rate.
