Overview
The MAX1291AEEI+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 features an input track/hold (T/H) stage to convert analog input signals to digital outputs. It operates with a single +3V analog supply and supports a wide range of digital supply voltages from +1.8V to +3.6V, making it versatile for various system designs. The MAX1291AEEI+T is known for its high-speed performance, low power consumption, and compact package, making it suitable for a variety of applications requiring precise and efficient analog-to-digital conversion.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12-bit |
| Sampling Rate | 250 kS/s |
| Input Type | Pseudo-Differential/Single-Ended |
| Architecture | SAR (Successive Approximation) |
| Analog Supply Voltage | +3V |
| Digital Supply Voltage | +1.8V to +3.6V |
| Internal Reference | +2.5V |
| Operating Temperature | -40°C to +85°C |
| Package | 28-SSOP (0.154", 3.90mm Width) |
| Power Consumption | 5.7mW (at 250ksps), <10µA (shutdown) |
Key Features
- Low power consumption: 5.7mW at 250ksps and less than 10µA in shutdown mode.
- Software-configurable analog inputs: 8-channel single-ended or 4-channel pseudo-differential.
- User-adjustable logic level: Supports digital supply voltages from +1.8V to +3.6V.
- Internal +2.5V reference and internal 3MHz full-power bandwidth track/hold.
- Byte-wide parallel interface for high-speed data transfer.
- Fast wake-up time of 2µs from power-down mode.
- Compact package: 28-SSOP.
Applications
The MAX1291AEEI+T is suitable for a variety of applications that require high-speed, low-power analog-to-digital conversion. These include:
- Industrial automation and control systems.
- Medical devices and diagnostic equipment.
- Aerospace and defense systems.
- Automotive systems, particularly those requiring high reliability and low power consumption.
- Data acquisition systems and test equipment.
Q & A
- What is the resolution of the MAX1291AEEI+T ADC?
The MAX1291AEEI+T has a 12-bit resolution. - What is the maximum sampling rate of the MAX1291AEEI+T?
The maximum sampling rate is 250 kS/s. - What types of analog inputs does the MAX1291AEEI+T support?
The device supports pseudo-differential and single-ended analog inputs. - What is the operating temperature range of the MAX1291AEEI+T?
The operating temperature range is -40°C to +85°C. - How much power does the MAX1291AEEI+T consume at maximum sampling rate?
The power consumption is 5.7mW at 250ksps. - What is the wake-up time from power-down mode?
The wake-up time is 2µs. - Does the MAX1291AEEI+T have an internal reference voltage?
Yes, it has an internal +2.5V reference voltage. - What is the package type of the MAX1291AEEI+T?
The package type is 28-SSOP. - Can the logic level of the MAX1291AEEI+T be adjusted?
Yes, the logic level can be adjusted to support digital supply voltages from +1.8V to +3.6V. - What is the interface type of the MAX1291AEEI+T?
The interface type is byte-wide parallel.
