Overview
The MAX1261BCEI+ is a low-power, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1261/MAX1263 series, which features successive-approximation ADCs designed for high performance and low power consumption. The MAX1261 is particularly suited for applications requiring multiple analog input channels, high-speed conversion, and minimal power usage.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Sampling Rate | 250 ksps |
| Analog Supply Voltage | +3V |
| Digital Supply Voltage | +1.8V to +5.5V |
| Internal Reference Voltage | +2.5V |
| Interface | High-speed, byte-wide parallel interface |
| Power Consumption | 5.7 mW at maximum sampling rate |
| Power-Down Modes | Two software-selectable modes |
| Analog Input Configuration | Unipolar/bipolar, single-ended/pseudo-differential |
| Number of Input Channels | 8 channels (single-ended), 4 channels (pseudo-differential) |
| Package Type | 28-pin QSOP |
Key Features
- Low power consumption of 5.7 mW at the maximum sampling rate of 250 ksps
- Fast wake-up time of 2 µs from power-down mode
- On-chip clock and +2.5V internal reference
- High-speed, byte-wide parallel interface
- Software-configurable analog inputs for unipolar/bipolar and single-ended/pseudo-differential operation
- Automatic power-down and two software-selectable power-down modes to reduce power consumption between conversions
- Compact 28-pin QSOP package
Applications
The MAX1261BCEI+ is ideal for various applications that require high performance, low power consumption, and multiple analog input channels. These include:
- Battery-powered devices
- Data-acquisition systems
- Circuits with demanding power consumption and space requirements
Q & A
- What is the resolution of the MAX1261BCEI+ ADC?
The MAX1261BCEI+ has a 12-bit resolution.
- What is the maximum sampling rate of the MAX1261BCEI+?
The maximum sampling rate is 250 ksps.
- What is the analog supply voltage for the MAX1261BCEI+?
The analog supply voltage is +3V.
- What types of analog input configurations are supported by the MAX1261BCEI+?
The device supports unipolar/bipolar and single-ended/pseudo-differential configurations.
- How many analog input channels does the MAX1261BCEI+ have?
In single-ended mode, it has 8 channels, and in pseudo-differential mode, it has 4 channels.
- What is the power consumption of the MAX1261BCEI+ at the maximum sampling rate?
The power consumption is 5.7 mW at the maximum sampling rate.
- Does the MAX1261BCEI+ have power-down modes?
Yes, it has two software-selectable power-down modes.
- What is the wake-up time from power-down mode?
The wake-up time is 2 µs.
- What type of interface does the MAX1261BCEI+ use?
The device uses a high-speed, byte-wide parallel interface.
- In what package is the MAX1261BCEI+ available?
The device is available in a 28-pin QSOP package.
