Overview
The MAX1293BCEG+ is a low-power, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device features a successive-approximation ADC architecture and is designed for applications requiring high precision and low power consumption. It operates with a single +3V analog supply and includes a VLOGIC pin that allows it to interface directly with a +1.8V to +5.5V digital supply. The MAX1293 is known for its fast wake-up time of 2µs, automatic power-down capabilities, and an on-chip clock, making it suitable for battery-powered and data-acquisition systems.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12-bit | |
| Conversion Rate | 250ksps | |
| Analog Supply Voltage | 2.7V to 3.6V | V |
| Digital Supply Voltage | 1.8V to 3.6V | V |
| Internal Reference Voltage | +2.5V | V |
| Power Consumption (at 250ksps) | 5.7mW | mW |
| Power Consumption (in Shutdown) | 2µA | µA |
| Operating Temperature | 0°C to +70°C | °C |
| Package Type | 24-Pin QSOP | |
| Number of Channels (Single-Ended) | 4 | |
| Number of Channels (Pseudo-Differential) | 2 |
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
- User-adjustable logic level (+1.8V to +3.6V)
- Low power consumption with two software-selectable power-down modes
- Small footprint in a 24-pin QSOP package
Applications
The MAX1293BCEG+ is ideal for various applications requiring high precision and low power consumption, such as:
- Battery-powered systems
- Data-acquisition systems
- Circuits with demanding power consumption and space requirements
Q & A
- What is the resolution of the MAX1293BCEG+ ADC?
The MAX1293BCEG+ has a 12-bit resolution.
- What is the maximum conversion rate of the MAX1293BCEG+?
The maximum conversion rate is 250ksps.
- What is the operating voltage range for the analog supply?
The analog supply voltage range is from 2.7V to 3.6V.
- What is the power consumption at the maximum sampling rate?
The power consumption at 250ksps is 5.7mW.
- How many channels does the MAX1293BCEG+ support in single-ended mode?
In single-ended mode, it supports 4 channels.
- What is the package type of the MAX1293BCEG+?
The package type is a 24-pin QSOP.
- Can the logic level be adjusted on the MAX1293BCEG+?
Yes, the logic level is user-adjustable from +1.8V to +3.6V.
- What is the wake-up time from power-down mode?
The wake-up time is 2µs.
- Does the MAX1293BCEG+ have an internal clock and reference?
Yes, it has an on-chip clock and a +2.5V internal reference.
- What are the typical applications for the MAX1293BCEG+?
Typical applications include battery-powered systems, data-acquisition systems, and circuits with demanding power consumption and space requirements.
