Overview
The MAX1290BCEI+ is a low-power, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1290 series and is known for its high performance, low power consumption, and versatility. It operates with a single +5V analog supply and features a VLOGIC pin that allows it to interface directly with a +2.7V to +5.5V digital supply. The MAX1290BCEI+ is particularly suited for applications requiring high dynamic performance, low power, and small footprint, making it ideal for battery-powered and data-acquisition systems.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12-bit |
| Sampling Rate | Up to 400ksps |
| Analog Supply Voltage | +5V |
| Digital Supply Voltage | +2.7V to +5.5V |
| Reference Type | Internal (+2.5V) |
| Number of Channels | 8 (single-ended), 4 (pseudo-differential) |
| Power Consumption | 10mW (at 400ksps), 2µA (shutdown) |
| Interface | Byte-wide parallel (8 + 4) |
| Package | 28-pin QSOP |
Key Features
- 12-bit resolution with ±0.5 LSB linearity
- User-adjustable logic level (+2.7V to +5.5V)
- Internal +2.5V reference
- Software-configurable analog input multiplexer
- Software-configurable unipolar/bipolar analog inputs
- Low power consumption: 2.5mA (400ksps), 1.0mA (100ksps), 400µA (10ksps), 2µA (shutdown)
- Internal 6MHz full-power bandwidth track/hold
- Byte-wide parallel interface
- Small footprint: 28-pin QSOP package
- Fast wake-up time of 2µs and automatic power-down modes
Applications
- Industrial Control Systems
- Data Logging
- Energy Management
- Patient Monitoring
- Data-Acquisition Systems
- Touchscreens
Q & A
- What is the resolution of the MAX1290BCEI+ ADC?
The MAX1290BCEI+ has a 12-bit resolution.
- What is the maximum sampling rate of the MAX1290BCEI+?
The maximum sampling rate is up to 400ksps.
- What is the analog supply voltage for the MAX1290BCEI+?
The analog supply voltage is +5V.
- What is the range of the digital supply voltage for the MAX1290BCEI+?
The digital supply voltage range is +2.7V to +5.5V.
- How many channels does the MAX1290BCEI+ have?
The MAX1290BCEI+ has 8 single-ended channels or 4 pseudo-differential channels.
- What is the power consumption of the MAX1290BCEI+ at 400ksps?
The power consumption is 10mW at 400ksps.
- What is the interface type of the MAX1290BCEI+?
The interface is byte-wide parallel (8 + 4).
- In what package is the MAX1290BCEI+ available?
The MAX1290BCEI+ is available in a 28-pin QSOP package.
- What are some typical applications for the MAX1290BCEI+?
Typical applications include industrial control systems, data logging, energy management, patient monitoring, data-acquisition systems, and touchscreens.
- How does the MAX1290BCEI+ manage power consumption during idle periods?
The MAX1290BCEI+ features automatic power-down modes and can reduce supply current to under 10µA at reduced sampling rates.
