Overview
The MAX1068AEEG+ is a multichannel, 14-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1067/MAX1068 family and is designed for high-performance data acquisition and control applications. It features a successive-approximation ADC architecture, integrated with a +4.096V reference, a reference buffer, an internal oscillator, and automatic power-down capabilities. The MAX1068AEEG+ operates with a single +5V analog supply and supports a separate digital supply, allowing direct interfacing with +2.7V to +5.5V digital logic.
Key Specifications
| Parameter | Specification |
|---|---|
| Resolution | 14 bits |
| Number of Channels | Up to 8 channels |
| Sampling Rate | 200 kS/s |
| Input Type | Analog |
| Architecture | Successive-Approximation (SAR) |
| Input Voltage Range | 0 to VREF |
| Internal Reference | +4.096V |
| Interface Type | SPI/QSPI/MICROWIRE-compatible serial interface |
| Power Consumption | 3.6mA at 200ksps, 185µA at 10ksps, < 10µA in power-down mode |
| Package | 24-pin QSOP |
| Temperature Range | Commercial (0°C to +70°C), Extended (-40°C to +85°C) |
Key Features
- 14-bit resolution with ±0.5 LSB INL and ±1 LSB DNL (max)
- +5V single-supply operation with adjustable logic level (+2.7V to +5.25V)
- Internal (+4.096V) or external reference
- Internal oscillator and automatic power-down
- SPI/QSPI/MICROWIRE-compatible serial interface
- 8-bit-wide or 16-bit-wide data-transfer mode
- Scan mode for sequential or continuous conversion of multiple channels
- Low power consumption: 3.6mA at 200ksps, 185µA at 10ksps, < 10µA in power-down mode
- Small package size: 24-pin QSOP
- DSP-initiated conversions with DSP frame-sync input and output
Applications
- Motor Control
- Industrial Process Control
- Industrial I/O Modules
- Data-Acquisition Systems
- Thermocouple Measurements
- Accelerometer Measurements
Q & A
- What is the resolution of the MAX1068AEEG+ ADC?
The MAX1068AEEG+ has a 14-bit resolution.
- How many analog input channels does the MAX1068AEEG+ support?
The MAX1068AEEG+ supports up to 8 analog input channels.
- What is the sampling rate of the MAX1068AEEG+?
The sampling rate of the MAX1068AEEG+ is 200 kS/s.
- What type of interface does the MAX1068AEEG+ use?
The MAX1068AEEG+ uses a SPI/QSPI/MICROWIRE-compatible serial interface.
- What is the power consumption of the MAX1068AEEG+ at 200ksps?
The power consumption at 200ksps is 3.6mA.
- What are the temperature ranges for the MAX1068AEEG+?
The device is specified over the commercial (0°C to +70°C) and extended (-40°C to +85°C) temperature ranges.
- Does the MAX1068AEEG+ support DSP-initiated conversions?
- What is the package type of the MAX1068AEEG+?
The MAX1068AEEG+ is available in a 24-pin QSOP package.
- Can the MAX1068AEEG+ operate with different logic levels?
- What is the input voltage range for the MAX1068AEEG+?
The input voltage range is from 0 to VREF.
