Overview
The MAX1247AEPE is a 12-bit, low-power, 4-channel analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1246/MAX1247 family, which combines a 4-channel multiplexer, high-bandwidth track/hold, and a serial interface. The MAX1247 operates from a single supply voltage ranging from +2.7V to +5.25V, making it versatile for various applications. It requires an external reference voltage and features a reference-buffer amplifier with a ±1.5% voltage-adjustment range. The device is available in a 16-pin DIP and a QSOP package, offering compact solutions for data-acquisition systems.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Number of Channels | 4 channels |
| Operating Supply Voltage | +2.7V to +5.25V |
| Conversion Rate | Up to 133ksps |
| Integral Nonlinearity (INL) | ±0.5 LSB |
| Package Type | 16-pin DIP, QSOP |
| Reference Voltage | External reference required |
| Reference-Buffer Amplifier Adjustment | ±1.5% voltage-adjustment range |
Key Features
- Low power consumption with supply current under 60µA at reduced sampling rates.
- Software-configurable analog inputs for unipolar/bipolar and single-ended/differential operation.
- High-bandwidth track/hold and serial interface for high conversion speed.
- Hard-wired SHDN-bar pin and software-selectable power-down mode.
- Quick turn-on time allowing shutdown between conversions.
- Compact packaging options including 16-pin DIP and QSOP.
Applications
The MAX1247AEPE is suitable for a variety of data-acquisition applications, including:
- Industrial control systems.
- Medical devices.
- Aerospace and defense systems.
- Automotive systems.
- Embedded systems requiring low power and high precision ADCs.
Q & A
- What is the resolution of the MAX1247AEPE ADC?
The MAX1247AEPE has a resolution of 12 bits.
- How many channels does the MAX1247AEPE support?
The MAX1247AEPE supports 4 channels.
- What is the operating supply voltage range for the MAX1247AEPE?
The operating supply voltage range is from +2.7V to +5.25V.
- Does the MAX1247AEPE have an internal reference voltage?
No, the MAX1247AEPE requires an external reference voltage.
- What is the maximum conversion rate of the MAX1247AEPE?
The maximum conversion rate is up to 133ksps.
- What are the packaging options for the MAX1247AEPE?
The device is available in 16-pin DIP and QSOP packages.
- How does the MAX1247AEPE manage power consumption?
The device features low power consumption with supply current under 60µA at reduced sampling rates and has a software-selectable power-down mode.
- Can the analog inputs of the MAX1247AEPE be configured?
Yes, the analog inputs are software-configurable for unipolar/bipolar and single-ended/differential operation.
- What is the purpose of the reference-buffer amplifier in the MAX1247AEPE?
The reference-buffer amplifier has a ±1.5% voltage-adjustment range, allowing for precise reference voltage adjustment.
- Is there an evaluation kit available for the MAX1247AEPE?
Yes, an evaluation kit (EV kit) is available to demonstrate the features of the MAX1247AEPE.
