Overview
The MAX1295AEEI+ is a 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc., now part of Maxim Integrated. This device is part of the MAX1295/MAX1297 family, known for its low power consumption, high-speed operation, and compact design. The MAX1295AEEI+ is particularly suited for applications requiring precise analog-to-digital conversion with minimal power usage, making it ideal for battery-powered devices and data-acquisition systems.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12-bit |
| Sampling Rate | 265 ksps |
| Analog Supply Voltage | +2.7V to +3.6V |
| Internal Reference | +2.5V |
| Input Channels | 6 (single-ended), 3 (pseudo-differential) |
| Power Consumption | 5.4 mW at 265 ksps |
| Power-Down Modes | Two software-selectable modes |
| Package Type | 28-pin QSOP |
| Operating Temperature | -40°C to +85°C |
Key Features
- Successive-approximation ADC architecture
- Automatic power-down and fast wake-up (2µs)
- On-chip clock and 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 at lower sampling rates
- Tri-states active-low INT when active-low CS goes high
Applications
- Battery-powered devices
- Data-acquisition systems
- Industrial automation
- Medical devices
- Portable instrumentation
- Other circuits with demanding power-consumption and space requirements
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 device operates with a single +2.7V to +3.6V analog supply. - Does the MAX1295AEEI+ have an internal reference voltage?
Yes, it has an internal +2.5V reference voltage. - How many input channels does the MAX1295AEEI+ have?
The device has six input channels in single-ended mode and three in pseudo-differential mode. - What is the power consumption of the MAX1295AEEI+ at maximum sampling rate?
The power consumption is 5.4 mW at 265 ksps. - Does the MAX1295AEEI+ support power-down modes?
Yes, it has two software-selectable power-down modes. - What is the package type of the MAX1295AEEI+?
The device is offered in a 28-pin QSOP package. - What are the typical applications of the MAX1295AEEI+?
Typical applications include battery-powered devices, data-acquisition systems, industrial automation, and medical devices. - How does the MAX1295AEEI+ handle power-down between conversions?
Powering down between conversions can reduce supply current below 10µA at lower sampling rates.
