Overview
The MAX1248BCEE+ is a 10-bit data-acquisition system produced by Analog Devices Inc./Maxim Integrated. This component combines a 4-channel multiplexer, high-bandwidth track/hold, and a serial interface, offering high conversion speed and low power consumption. It operates from a single supply voltage ranging from +2.7V to +5.25V, making it versatile for various applications. The device supports software-configurable analog inputs for unipolar/bipolar and single-ended/differential operation, and it features a 4-wire serial interface compatible with SPI, QSPI, and MICROWIRE devices without external logic.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 10-bit | |
| Number of Channels | 4 | |
| Operating Supply Voltage | 2.7V to 5.25V | V |
| Conversion Time | 6 µs (typical) | µs |
| Full-Power Bandwidth | 1.0 MHz | MHz |
| Small-Signal Bandwidth | 2.25 MHz | MHz |
| Channel-to-Channel Crosstalk | -75 dB | dB |
| SFDR (Spurious-Free Dynamic Range) | -70 dB | dB |
| THD (Total Harmonic Distortion) | -66 dB | dB |
| SINAD (Signal-to-Noise + Distortion Ratio) | 66 dB | dB |
| Operating Temperature Range | 0°C to +70°C (C_E), -40°C to +85°C (E_E), -55°C to +125°C (MJE) | °C |
| Storage Temperature Range | -60°C to +150°C | °C |
| Lead Temperature (soldering, 10sec) | +300°C | °C |
Key Features
- High conversion speed and low power consumption.
- Software-configurable analog inputs for unipolar/bipolar and single-ended/differential operation.
- 4-wire serial interface compatible with SPI, QSPI, and MICROWIRE devices without external logic.
- Internal clock or external serial-interface clock for successive-approximation analog-to-digital conversions.
- Internal 2.5V reference (MAX1248) or external reference (MAX1249) with a reference-buffer amplifier.
- Hard-wired SHDN pin and software-selectable power-down mode.
- Serial strobe output for direct connection to TMS320-family digital signal processors.
Applications
The MAX1248BCEE+ is suitable for a variety of applications requiring high-speed, low-power data acquisition. These include:
- Industrial automation and control systems.
- Medical devices and diagnostic equipment.
- Aerospace and defense systems.
- Automotive systems, especially those requiring high reliability and low power consumption.
- Data logging and monitoring systems.
Q & A
- What is the resolution of the MAX1248BCEE+?
The MAX1248BCEE+ has a 10-bit resolution.
- How many channels does the MAX1248BCEE+ support?
The MAX1248BCEE+ supports 4 channels.
- What is the operating supply voltage range of the MAX1248BCEE+?
The operating supply voltage range is from +2.7V to +5.25V.
- What is the typical conversion time of the MAX1248BCEE+?
The typical conversion time is 6 µs.
- Does the MAX1248BCEE+ support both unipolar and bipolar input configurations?
- What types of serial interfaces are supported by the MAX1248BCEE+?
The MAX1248BCEE+ supports SPI, QSPI, and MICROWIRE serial interfaces.
- Does the MAX1248BCEE+ have an internal reference voltage?
The MAX1248 has an internal 2.5V reference, while the MAX1249 requires an external reference.
- What is the operating temperature range of the MAX1248BCEE+?
The operating temperature range varies by model: 0°C to +70°C (C_E), -40°C to +85°C (E_E), and -55°C to +125°C (MJE).
- How does the MAX1248BCEE+ manage power consumption?
The MAX1248BCEE+ features a hard-wired SHDN pin and software-selectable power-down mode to manage power consumption.
- What are some common applications of the MAX1248BCEE+?
