Overview
The MAX1294ACEI+T is a low-power, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1294/MAX1296 family, known for its high performance, low power consumption, and compact design. The MAX1294ACEI+T operates with a single +5V analog supply and features a successive-approximation ADC architecture, an on-chip clock, and a +2.5V internal reference. It is particularly suited for applications requiring high dynamic performance and low power consumption, such as battery-powered devices and data-acquisition systems.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12-bit | |
| Sampling Rate | 420ksps | |
| Analog Supply Voltage | +5V ±10% | V |
| Internal Reference Voltage | +2.5V | V |
| Power Consumption (at 420ksps) | 10mW | mW |
| Power Consumption (in Shutdown Mode) | 2µA | µA |
| Operating Temperature Range | 0°C to +70°C | °C |
| Package Type | 28-Pin QSOP | |
| Full-Power Bandwidth of T/H Stage | 6MHz | MHz |
| Aperture Delay | 400ns | ns |
Key Features
- Successive-approximation ADC architecture
- On-chip clock and +2.5V internal reference
- High-speed 12-bit parallel interface
- Software-selectable power-down modes for low power consumption
- Fast wake-up time of 2µs
- Software-configurable analog inputs for unipolar/bipolar and single-ended/pseudo-differential operation
- Small footprint in 28-pin QSOP package
- Excellent dynamic performance with SINAD > 68dB at fIN = 175kHz
Applications
- Battery-powered devices
- Data-acquisition systems
- Portable medical devices
- Industrial control systems
- Automotive systems requiring low power and high performance ADCs
Q & A
- What is the resolution of the MAX1294ACEI+T ADC?
The MAX1294ACEI+T has a 12-bit resolution.
- What is the maximum sampling rate of the MAX1294ACEI+T?
The maximum sampling rate is 420ksps.
- What is the operating voltage range for the MAX1294ACEI+T?
The device operates with a single +5V analog supply.
- How much power does the MAX1294ACEI+T consume at its maximum sampling rate?
The power consumption is 10mW at 420ksps.
- What is the wake-up time from shutdown mode?
The wake-up time is 2µs.
- Can the analog inputs be configured for different modes?
- What is the package type of the MAX1294ACEI+T?
The device is available in a 28-pin QSOP package.
- What is the full-power bandwidth of the track-and-hold (T/H) stage?
The full-power bandwidth of the T/H stage is 6MHz.
- What are some typical applications for the MAX1294ACEI+T?
Typical applications include battery-powered devices, data-acquisition systems, portable medical devices, and industrial control systems.
- How does the device manage power consumption during idle periods?
The device has software-selectable power-down modes that can reduce power consumption to below 10µA at lower sampling rates.
