Overview
The MAX1293AEEG+T is a low-power, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device features a successive-approximation (SAR) conversion technique and an input track/hold (T/H) stage, enabling the conversion of analog input signals to 12-bit digital outputs. It operates with a single +3V analog supply and includes a +2.5V internal reference, as well as a high-speed, byte-wide parallel interface. The MAX1293 is designed for applications requiring low power consumption, high dynamic performance, and ease of use, making it ideal for battery-powered and data-acquisition systems.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Number of Bits | 12 | |
| Sampling Rate | 250k | samples per second |
| Number of Inputs | 4 (single-ended), 2 (pseudo-differential) | |
| Input Type | Single-ended, Pseudo-differential | |
| Data Interface | Parallel | |
| Architecture | SAR (Successive Approximation) | |
| Reference Type | Internal (+2.5V), External | |
| Analog Supply Voltage | 2.7V to 3.6V | V |
| Digital Supply Voltage | 1.8V to 3.6V | V |
| Operating Temperature | -40°C to +85°C | °C |
| Package | 24-pin QSOP |
Key Features
- Low power consumption: 5.7mW at 250ksps sampling rate.
- 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).
- Small package size: 24-pin QSOP.
Applications
The MAX1293AEEG+T is suitable for various applications, including:
- Battery-powered systems due to its low power consumption.
- Data-acquisition systems requiring high dynamic performance and ease of use.
- Circuits with demanding power consumption and space requirements.
Q & A
- What is the resolution of the MAX1293AEEG+T ADC?
The MAX1293AEEG+T has a 12-bit resolution.
- What is the maximum sampling rate of the MAX1293AEEG+T?
The maximum sampling rate is 250ksps.
- How many analog input channels does the MAX1293AEEG+T have?
The MAX1293AEEG+T has four single-ended or two pseudo-differential analog input channels.
- What is the power consumption of the MAX1293AEEG+T at maximum sampling rate?
The power consumption is 5.7mW at the maximum sampling rate of 250ksps.
- Does the MAX1293AEEG+T have an internal reference voltage?
Yes, it has an internal +2.5V reference voltage.
- What is the operating temperature range of the MAX1293AEEG+T?
The operating temperature range is -40°C to +85°C.
- What type of data interface does the MAX1293AEEG+T use?
The MAX1293AEEG+T uses a high-speed, byte-wide parallel interface.
- Can the MAX1293AEEG+T be powered down between conversions?
Yes, it has two software-selectable power-down modes that can reduce supply current to under 10µA at reduced sampling rates.
- What is the package type of the MAX1293AEEG+T?
The MAX1293AEEG+T is available in a 24-pin QSOP package.
- Is the MAX1293AEEG+T suitable for battery-powered applications?
Yes, it is suitable due to its low power consumption and fast wake-up time.
