Overview
The MAX1249AEEE+T, produced by Analog Devices Inc./Maxim Integrated, is a 10-bit data-acquisition system that combines a 4-channel multiplexer, high-bandwidth track/hold, and a serial interface. This device is renowned for its high conversion speed and low power consumption, making it ideal for battery-powered devices and systems where energy efficiency is crucial. It operates from a single supply voltage ranging from +2.7V to +5.25V and supports software-configurable unipolar/bipolar and single-ended/differential operation modes.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 10 bits |
| Number of Channels | 4 channels |
| Supply Voltage | +2.7V to +5.25V |
| Active Mode Supply Current | 1.3mA |
| Power-down Mode Supply Current | 54µA |
| Shutdown Mode Supply Current | 10nA |
| Sampling Rate | 133 kS/s |
| Interface Type | SPI, QSPI, MICROWIRE |
| Input Type | Differential/Single-Ended |
| Architecture | Successive Approximation (SAR) |
| Signal to Noise Ratio (SNR) | 64 dB |
| Minimum Operating Temperature | -40°C |
| Maximum Operating Temperature | +85°C |
| Package/Case | QSOP-16 |
| Reference Type | External |
Key Features
- High conversion speed and low power consumption, making it suitable for battery-powered devices.
- Software-configurable unipolar/bipolar and single-ended/differential operation modes.
- 4-wire serial interface compatible with SPI, QSPI, and MICROWIRE devices without external logic.
- Serial strobe output for direct connection to TMS320-family digital signal processors.
- Internal or external serial-interface clock for successive-approximation analog-to-digital conversions.
- Reference-buffer amplifier with a ±1.5% voltage adjustment range.
- Hard-wired active-low SHDN pin and software-selectable power-down modes.
- Quick turn-on time and automatic shutdown at the end of a conversion to reduce supply current.
Applications
- Environmental Monitoring: Suitable for monitoring various environmental parameters due to its low power consumption and high accuracy.
- Wireless Communication: Used in wireless communication systems where energy efficiency and high conversion speed are essential.
- Remote Control Systems: Ideal for remote control systems that require precise and efficient data acquisition.
Q & A
- What is the resolution of the MAX1249AEEE+T?
The MAX1249AEEE+T has a resolution of 10 bits.
- What is the operating supply voltage range of the MAX1249AEEE+T?
The operating supply voltage range is from +2.7V to +5.25V.
- How many channels does the MAX1249AEEE+T support?
The MAX1249AEEE+T supports 4 channels.
- What types of input configurations are supported by the MAX1249AEEE+T?
The device supports both single-ended and differential input configurations, as well as unipolar and bipolar operation modes.
- What is the sampling rate of the MAX1249AEEE+T?
The sampling rate is 133 kS/s.
- What interface types are supported by the MAX1249AEEE+T?
The device supports SPI, QSPI, and MICROWIRE interfaces.
- How does the MAX1249AEEE+T manage power consumption?
The device has multiple power-down modes, including a hard-wired active-low SHDN pin and software-selectable power-down, which can reduce supply current to under 60µA at reduced sampling rates.
- What is the reference type for the MAX1249AEEE+T?
The MAX1249AEEE+T requires an external reference.
- What is the package type of the MAX1249AEEE+T?
The device is available in a QSOP-16 package.
- What are the operating temperature ranges for the MAX1249AEEE+T?
The operating temperature range is from -40°C to +85°C.
- What are some common applications of the MAX1249AEEE+T?
Common applications include environmental monitoring, wireless communication, and remote control systems.
