Overview
The MAX1261AEEI+ is a 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This low-power ADC features a successive-approximation architecture and is designed for high-performance applications requiring precision and efficiency. It operates with a single +3V analog supply and supports a wide range of digital supply voltages from +1.8V to +3.6V, making it versatile for various system designs. The device is particularly suited for battery-powered and data-acquisition applications due to its low power consumption and compact package size.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12-bit |
| Sampling Rate | 250 kS/s |
| Integral Nonlinearity (INL) | ±0.5 LSB |
| Operating Supply Voltage (Analog) | 2.7V to 3.6V |
| Operating Supply Voltage (Digital) | 1.8V to 3.6V |
| Number of Channels | 8 channels (single-ended), 4 channels (pseudo-differential) |
| Interface Type | Parallel |
| Input Type | Single-ended, pseudo-differential |
| Operating Temperature | -40°C to 85°C |
| Package | 28-pin QSOP |
Key Features
- Low power consumption: 5.7mW at maximum sampling rate, and under 10µA in power-down mode.
- Fast wake-up time: 2µs from power-down mode.
- On-chip clock and +2.5V internal reference.
- Software-configurable analog inputs for unipolar/bipolar and single-ended/pseudo-differential operation.
- User-adjustable logic level (+1.8V to +3.6V) for digital interface.
- High-speed, byte-wide parallel interface.
- Automatic power-down and two software-selectable power-down modes.
Applications
The MAX1261AEEI+ is ideal for various applications requiring high precision and low power consumption, such as:
- Battery-powered devices.
- Data-acquisition systems.
- Medical devices.
- Industrial control systems.
- Portable instrumentation.
Q & A
- What is the resolution of the MAX1261AEEI+ ADC?
The MAX1261AEEI+ has a 12-bit resolution.
- What is the maximum sampling rate of the MAX1261AEEI+?
The maximum sampling rate is 250 kS/s.
- What are the operating supply voltage ranges for the MAX1261AEEI+?
The analog supply voltage range is 2.7V to 3.6V, and the digital supply voltage range is 1.8V to 3.6V.
- How many input channels does the MAX1261AEEI+ support?
The device supports 8 single-ended channels or 4 pseudo-differential channels.
- What is the power consumption of the MAX1261AEEI+ at maximum sampling rate?
The power consumption is 5.7mW at the maximum sampling rate.
- What is the wake-up time from power-down mode?
The wake-up time is 2µs.
- Does the MAX1261AEEI+ have an internal reference voltage?
Yes, it has an on-chip +2.5V internal reference.
- What type of interface does the MAX1261AEEI+ use?
The device uses a high-speed, byte-wide parallel interface.
- Can the logic level of the MAX1261AEEI+ be adjusted?
Yes, the logic level can be adjusted from +1.8V to +3.6V.
- What is the package type of the MAX1261AEEI+?
The device is available in a 28-pin QSOP package.
