Overview
The MAX1247BEEE+T, produced by Analog Devices Inc./Maxim Integrated, is a 12-bit, 4-channel, low-power analog-to-digital converter (ADC). 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 supports both single-ended and differential input configurations and features high conversion speed and low power consumption.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 12 |
| Number of Inputs | 4 (single-ended or 2 differential) |
| Supply Voltage | +2.7V to +5.25V |
| Conversion Rate | Up to 133ksps |
| Interface Type | Serial (SPI/QSPI, MICROWIRE compatible) |
| Package | 16-pin QSOP |
| Reference Voltage | External reference required |
| Power Consumption | Low power; < 60µA at reduced sampling rates |
Key Features
- Software-configurable analog inputs for unipolar/bipolar and single-ended/differential operation.
- High-bandwidth track/hold and successive-approximation analog-to-digital conversion.
- 4-wire serial interface compatible with SPI/QSPI and MICROWIRE devices.
- Serial strobe output for direct connection to TMS320-family digital signal processors.
- Reference-buffer amplifier with ±1.5% voltage-adjustment range.
- Hard-wired SHDN-bar pin and software-selectable power-down mode.
- Quick turn-on time and automatic shutdown at the end of a conversion to reduce power consumption.
Applications
The MAX1247BEEE+T is suitable for a variety of applications requiring high-speed, low-power data acquisition. These include medical devices, industrial control systems, and any system that requires precise analog-to-digital conversion with minimal power consumption. The device's flexibility in input configurations and its compatibility with various serial interfaces make it a versatile choice for different design needs.
Q & A
- What is the supply voltage range for the MAX1247BEEE+T?
The MAX1247BEEE+T operates from a single supply voltage ranging from +2.7V to +5.25V.
- How many input channels does the MAX1247BEEE+T have?
The device has 4 input channels, which can be configured as single-ended or 2 differential channels.
- What is the conversion rate of the MAX1247BEEE+T?
The conversion rate can be up to 133ksps.
- What type of interface does the MAX1247BEEE+T use?
The device uses a 4-wire serial interface compatible with SPI/QSPI and MICROWIRE devices.
- Does the MAX1247BEEE+T have an internal reference voltage?
No, the MAX1247BEEE+T requires an external reference voltage.
- How does the MAX1247BEEE+T manage power consumption?
The device features a hard-wired SHDN-bar pin and software-selectable power-down mode, allowing it to automatically shut down at the end of a conversion to reduce power consumption.
- What package type is the MAX1247BEEE+T available in?
The device is available in a 16-pin QSOP package.
- Is the MAX1247BEEE+T suitable for medical applications?
Yes, the MAX1247BEEE+T is suitable for medical applications due to its high precision and low power consumption.
- What is the purpose of the serial strobe output on the MAX1247BEEE+T?
The serial strobe output allows direct connection to TMS320-family digital signal processors.
- Does the MAX1247BEEE+T support both unipolar and bipolar input configurations?
Yes, the device supports both unipolar and bipolar input configurations through software configuration.
