Overview
The MAX1295AEEI+ from Analog Devices Inc./Maxim Integrated is a low-power, 12-bit analog-to-digital converter (ADC) designed for high-performance and low-power applications. This ADC utilizes a successive-approximation (SAR) conversion technique and an input track/hold (T/H) stage to convert analog input signals into 12-bit digital outputs. It operates with a single +2.7V to +3.6V analog supply and features automatic power-down and fast wake-up capabilities, making it ideal for battery-powered and data-acquisition systems.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12-bit | |
| Sampling Rate | 265 ksps | |
| Analog Supply Voltage | +2.7V to +3.6V | V |
| Power Consumption | 5.4 mW (at 265 ksps) | mW |
| Internal Reference Voltage | +2.5V | V |
| Input Channels | 6 (MAX1295), 2 (MAX1297) | |
| Operating Temperature Range | 0°C to +70°C (C grade), -40°C to +85°C (E grade) | °C |
| Package Type | 28-pin QSOP |
Key Features
- Successive-approximation (SAR) ADC with input track/hold (T/H) stage
- Automatic power-down and fast wake-up (2µs)
- On-chip clock and +2.5V internal reference
- High-speed 12-bit parallel interface
- Software-configurable analog inputs for unipolar/bipolar and single-ended/pseudo-differential operation
- Low power consumption with supply current below 10µA in power-down modes
Applications
The MAX1295AEEI+ is suitable for a variety of applications, including battery-powered systems, data-acquisition systems, and other circuits with demanding power-consumption and space requirements. It is particularly useful in industrial, medical, and automotive applications where high accuracy and low power consumption are critical.
Q & A
- What is the resolution of the MAX1295AEEI+ ADC?
The MAX1295AEEI+ has a 12-bit resolution. - What is the maximum sampling rate of the MAX1295AEEI+?
The maximum sampling rate is 265 ksps. - What is the operating voltage range for the MAX1295AEEI+?
The operating voltage range is +2.7V to +3.6V. - How much power does the MAX1295AEEI+ consume at maximum sampling rate?
The power consumption is 5.4 mW at the maximum sampling rate. - What type of conversion technique does the MAX1295AEEI+ use?
The MAX1295AEEI+ uses a successive-approximation (SAR) conversion technique. - Does the MAX1295AEEI+ have an internal clock and reference?
Yes, it has an on-chip clock and a +2.5V internal reference. - What are the power-down modes available in the MAX1295AEEI+?
There are two software-selectable power-down modes that can reduce supply current below 10µA at lower sampling rates. - What types of analog input configurations are supported by the MAX1295AEEI+?
The MAX1295AEEI+ supports software-configurable analog inputs for unipolar/bipolar and single-ended/pseudo-differential operation. - What is the typical operating temperature range for the MAX1295AEEI+?
The typical operating temperature range is 0°C to +70°C (C grade) and -40°C to +85°C (E grade). - In what package type is the MAX1295AEEI+ available?
The MAX1295AEEI+ is available in a 28-pin QSOP package.
