Overview
The MAX1297ACEG from Analog Devices Inc./Maxim Integrated is a low-power, 12-bit analog-to-digital converter (ADC) designed for high-performance and low-power applications. This device utilizes a successive-approximation ADC and features an internal 3MHz full-power bandwidth track/hold stage, enabling efficient conversion of analog input signals to 12-bit digital outputs. It operates on a single +2.7V to +3.6V analog supply, making it suitable for battery-powered and space-constrained systems.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12-bit |
| Linearity | ±0.5 LSB |
| Operating Supply Voltage | +2.7V to +3.6V |
| Sampling Rate | Up to 265ksps |
| Power Consumption | 5.4mW (at 265ksps), 1.9mA (265ksps), 1.0mA (100ksps), 400µA (10ksps), 2µA (Shutdown) |
| Analog Input Channels | 2 single-ended, 1 pseudo-differential |
| Interface | Parallel 12-bit |
| Package | 24-Pin QSOP |
Key Features
- 12-bit resolution with ±0.5 LSB linearity
- Single +2.7V to +3.6V supply operation
- Internal +2.5V reference
- Software-configurable analog input multiplexer for unipolar/bipolar and single-ended/pseudo-differential operation
- Low current consumption: 1.9mA (265ksps), 1.0mA (100ksps), 400µA (10ksps), 2µA (Shutdown)
- Internal 3MHz full-power bandwidth track/hold
- Parallel 12-bit interface
- Small footprint in 24-pin QSOP package
- Fast wake-up time of 2µs
- Two software-selectable power-down modes
Applications
- Data Acquisition Systems
- Data Logging
- Energy Management
- Industrial Control Systems
- Patient Monitoring
- Touch Screens
Q & A
- What is the resolution of the MAX1297ACEG ADC?
The MAX1297ACEG has a 12-bit resolution.
- What is the operating supply voltage range for the MAX1297ACEG?
The device operates on a single +2.7V to +3.6V analog supply.
- How many analog input channels does the MAX1297ACEG have?
The MAX1297ACEG has 2 single-ended and 1 pseudo-differential analog input channel.
- What is the maximum sampling rate of the MAX1297ACEG?
The maximum sampling rate is up to 265ksps.
- What is the power consumption of the MAX1297ACEG at different sampling rates?
The power consumption is 5.4mW at 265ksps, with current consumption of 1.9mA (265ksps), 1.0mA (100ksps), 400µA (10ksps), and 2µA (Shutdown).
- Does the MAX1297ACEG have an internal reference voltage?
Yes, it has an internal +2.5V reference voltage.
- What type of interface does the MAX1297ACEG use?
The device uses a parallel 12-bit interface.
- What is the package type of the MAX1297ACEG?
The device is packaged in a 24-pin QSOP.
- What are the power-down modes available in the MAX1297ACEG?
The device has two software-selectable power-down modes.
- How quickly can the MAX1297ACEG wake up from power-down mode?
The wake-up time from power-down mode is 2µs.
