Overview
The MAX1261ACEI+, produced by 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 successive-approximation ADC features automatic power-down, fast wake-up times of 2µs, an on-chip clock, and a +2.5V internal reference. It operates with a single +3V analog supply and supports a digital supply range of +1.8V to +5.5V through the VLOGIC pin.
The device is available in a 28-pin QSOP package and is ideal for battery-powered and data-acquisition applications due to its excellent dynamic performance, low power consumption, and small package size.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12-bit |
| Sampling Rate | 250ksps |
| Analog Supply Voltage | +3V |
| Digital Supply Voltage | +1.8V to +5.5V |
| Internal Reference Voltage | +2.5V |
| Number of Channels | 8 (single-ended), 4 (pseudo-differential) |
| Power Consumption | 5.7mW at maximum sampling rate |
| Power-Down Modes | Two software-selectable modes |
| Package Type | 28-pin QSOP |
Key Features
- Successive-approximation ADC architecture
- Automatic power-down and fast wake-up (2µs)
- 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
- Low power consumption with two software-selectable power-down modes
- Operating temperature range: -40°C to +85°C
Applications
The MAX1261ACEI+ is suitable for a variety of applications, including:
- Battery-powered devices
- Data-acquisition systems
- Circuits with demanding power consumption and space requirements
Q & A
- What is the resolution of the MAX1261ACEI+ ADC?
The MAX1261ACEI+ has a 12-bit resolution.
- What is the maximum sampling rate of the MAX1261ACEI+?
The maximum sampling rate is 250ksps.
- What is the analog supply voltage for the MAX1261ACEI+?
The analog supply voltage is +3V.
- How many channels does the MAX1261ACEI+ support?
The device supports 8 single-ended channels or 4 pseudo-differential channels.
- What is the power consumption of the MAX1261ACEI+ at maximum sampling rate?
The power consumption is 5.7mW at the maximum sampling rate.
- Does the MAX1261ACEI+ have power-down modes?
Yes, it has two software-selectable power-down modes.
- What is the package type of the MAX1261ACEI+?
The device is available in a 28-pin QSOP package.
- What are the operating temperature ranges for the MAX1261ACEI+?
The operating temperature range is -40°C to +85°C.
- Can the MAX1261ACEI+ be used in battery-powered devices?
Yes, it is suitable for battery-powered devices due to its low power consumption.
- How does the MAX1261ACEI+ interface with digital systems?
The device interfaces directly with digital systems through a high-speed, byte-wide parallel interface and supports a digital supply range of +1.8V to +5.5V.
