Overview
The MAX1294BCEI+T is a low-power, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device utilizes a successive-approximation (SAR) conversion technique and an input track/hold (T/H) stage to convert analog input signals into digital outputs. It operates with a single +5V analog supply and features an internal +2.5V reference, making it highly suitable for applications requiring precision and low power consumption.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12-bit | |
| Number of Channels | 6 (single-ended), 3 (pseudo-differential) | |
| Interface Type | Parallel 12-bit | |
| Sampling Rate | 420 kS/s | |
| Voltage - Supply, Analog | +5V | V |
| Voltage - Supply, Digital | +5V | V |
| Operating Temperature | 0°C to +70°C | °C |
| Power Consumption (at 420ksps) | 10mW | mW |
| Power Consumption (in shutdown mode) | <2µA | µA |
| Package Type | 28-QSOP |
Key Features
- Successive-approximation ADC with an input track/hold (T/H) stage
- Internal +2.5V reference
- High-speed 12-bit parallel interface
- Software-configurable analog inputs for unipolar/bipolar and single-ended/pseudo-differential operation
- Automatic power-down and fast wake-up (2µs)
- On-chip clock
- Low power consumption with two software-selectable power-down modes
- Small footprint in 28-QSOP package
Applications
The MAX1294BCEI+T is ideal for various applications that require low power consumption and high precision, such as:
- Battery-powered devices
- Data-acquisition systems
- Circuits with demanding power-consumption and space requirements
Q & A
- What is the resolution of the MAX1294BCEI+T ADC?
The MAX1294BCEI+T has a 12-bit resolution.
- How many input channels does the MAX1294BCEI+T have?
In single-ended mode, it has six input channels, and in pseudo-differential mode, it has three input channels.
- What is the sampling rate of the MAX1294BCEI+T?
The sampling rate is up to 420 kS/s.
- What is the operating voltage of the MAX1294BCEI+T?
The device operates with a single +5V analog supply.
- What is the power consumption of the MAX1294BCEI+T at maximum sampling rate?
The power consumption is 10mW at 420ksps.
- How does the MAX1294BCEI+T manage power consumption during idle periods?
The device features two software-selectable power-down modes that can reduce supply current below 10µA at lower sampling rates.
- What type of interface does the MAX1294BCEI+T use?
The device uses a high-speed 12-bit parallel interface.
- What is the operating temperature range of the MAX1294BCEI+T?
The operating temperature range is from 0°C to +70°C.
- What package type is the MAX1294BCEI+T available in?
The device is available in a 28-QSOP package.
- What are some typical applications for the MAX1294BCEI+T?
Typical applications include battery-powered devices, data-acquisition systems, and circuits with demanding power-consumption and space requirements.
