Overview
The MAX1068BCEG+ is a multichannel, 14-bit, 200ksps analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1067/MAX1068 family, known for its low power consumption, high dynamic performance, and ease of use. The MAX1068BCEG+ operates with a single +5V analog supply and features a separate digital supply, allowing direct interfacing with +2.7V to +5.5V digital logic. It includes an integrated +4.096V reference, a reference buffer, an internal oscillator, and automatic power-down capabilities, making it ideal for control and data-acquisition operations as well as applications with stringent power and space requirements.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 14-bit |
| Sampling Rate | Up to 200ksps |
| Analog Supply Voltage | +5V |
| Digital Supply Voltage | +2.7V to +5.5V |
| Input Channels | Up to 8 analog inputs |
| Reference Voltage | Internal: +4.096V, External: +3.8V to AVDD |
| Input Bandwidth | 4MHz |
| Interface | SPI/QSPI/MICROWIRE-compatible serial interface |
| Power Consumption | 3.6mA at 200ksps, 185µA at 10ksps, <10µA at reduced sampling rates |
| Package | 24-pin QSOP |
| Operating 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)
- Adjustable logic level (+2.7V to +5.25V)
- Internal track/hold with 4MHz input bandwidth
- Internal or external clock option
- SPI/QSPI/MICROWIRE-compatible serial interface
- 8-bit-wide or 16-bit-wide data-transfer mode (MAX1068 only)
- Scan mode for sequential or continuous conversion of multiple channels
- Low power consumption with AutoShutdown™ feature
- Small package size in 24-pin QSOP
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 MAX1068BCEG+ ADC?
The MAX1068BCEG+ has a 14-bit resolution. - What is the maximum sampling rate of the MAX1068BCEG+?
The maximum sampling rate is up to 200ksps. - What are the supply voltage requirements for the MAX1068BCEG+?
The device operates with a single +5V analog supply and a separate digital supply ranging from +2.7V to +5.5V. - How many analog input channels does the MAX1068BCEG+ support?
The MAX1068BCEG+ supports up to 8 analog input channels. - What are the reference voltage options for the MAX1068BCEG+?
The device has an internal +4.096V reference and supports external references from +3.8V to AVDD. - What interface does the MAX1068BCEG+ use for data transfer?
The device uses a SPI/QSPI/MICROWIRE-compatible serial interface. - What is the power consumption of the MAX1068BCEG+ at different sampling rates?
The power consumption is 3.6mA at 200ksps, 185µA at 10ksps, and less than 10µA at reduced sampling rates. - In what package is the MAX1068BCEG+ available?
The device is available in a 24-pin QSOP package. - What is the operating temperature range for the MAX1068BCEG+?
The operating temperature range is from 0°C to +70°C for commercial use and from -40°C to +85°C for extended use. - What evaluation kit can be used to evaluate the MAX1068BCEG+?
The MAX1168 evaluation kit can be used to evaluate the MAX1068BCEG+.
