Overview
The MAX1290BEEI+T, produced by Analog Devices Inc./Maxim Integrated, is a low-power, 12-bit analog-to-digital converter (ADC) designed for high-performance and versatility. This device operates with a single +5V analog supply and features a user-adjustable logic level, allowing it to interface directly with digital supplies ranging from +2.7V to +5.5V. The MAX1290BEEI+T is part of the MAX1290/MAX1292 family, which includes successive-approximation ADCs, automatic power-down, fast wake-up times, and an on-chip clock. These converters are ideal for battery-powered and data-acquisition applications due to their excellent dynamic performance, low power consumption, and small package size.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 12 bits |
| Integral Nonlinearity (INL) | ±0.5 LSB |
| Operating Supply Voltage | 4.5V to 5.5V |
| Sampling Rate | Up to 400ksps |
| Number of Channels | 8 (single-ended), 4 (pseudo-differential) |
| Input Type | Single-ended, pseudo-differential |
| Data Interface | Byte-wide parallel |
| Power Consumption | 10mW (at 400ksps), < 10µA (in shutdown mode) |
| Package Type | 28-pin QSOP |
| Internal Reference | +2.5V |
Key Features
- 12-bit resolution with ±0.5 LSB linearity
- +5V single-supply operation with user-adjustable logic level (+2.7V to +5.5V)
- Internal +2.5V reference
- Software-configurable analog inputs for unipolar/bipolar and single-ended/pseudo-differential operation
- Low power consumption: 10mW at 400ksps, < 10µA in shutdown mode
- Fast wake-up time of 2µs
- On-chip clock and high-speed byte-wide parallel interface
- Small footprint: 28-pin QSOP package
Applications
- Industrial Control Systems
- Data Logging
- Energy Management
- Patient Monitoring
- Data-Acquisition Systems
- Touchscreens
- Battery-powered applications
Q & A
- What is the resolution of the MAX1290BEEI+T ADC?
The MAX1290BEEI+T has a 12-bit resolution.
- What is the maximum sampling rate of the MAX1290BEEI+T?
The maximum sampling rate is up to 400ksps.
- How many input channels does the MAX1290BEEI+T have?
The device has 8 single-ended or 4 pseudo-differential input channels.
- What is the power consumption of the MAX1290BEEI+T at 400ksps?
The power consumption is 10mW at 400ksps.
- What is the wake-up time of the MAX1290BEEI+T from power-down mode?
The wake-up time is 2µs.
- Does the MAX1290BEEI+T have an internal reference voltage?
Yes, it has an internal +2.5V reference voltage.
- What type of data interface does the MAX1290BEEI+T use?
The device uses a byte-wide parallel interface.
- What is the package type of the MAX1290BEEI+T?
The device is available in a 28-pin QSOP package.
- Can the MAX1290BEEI+T operate in both unipolar and bipolar modes?
Yes, the device supports software-configurable unipolar and bipolar analog inputs.
- What are some typical applications of the MAX1290BEEI+T?
Typical applications include industrial control systems, data logging, energy management, patient monitoring, and data-acquisition systems.
