Overview
The MAX1248AEEE+ is a 10-bit, 4-channel analog-to-digital converter (ADC) system produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1248/MAX1249 family, which combines a 4-channel multiplexer, high-bandwidth track/hold, and a serial interface. It operates from a single supply voltage ranging from +2.7V to +5.25V, making it versatile for various applications. The ADC system is software configurable for unipolar/bipolar and single-ended/differential analog input operations, enhancing its flexibility in different measurement scenarios.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage Range | +2.7V to +5.25V |
| Number of Channels | 4 |
| Resolution | 10-bit |
| Conversion Time | 6 µs (typical) |
| Full-Power Bandwidth | 1.0 MHz |
| Small-Signal Bandwidth | 2.25 MHz |
| Channel-to-Channel Crosstalk | -75 dB |
| SFDR (Spurious-Free Dynamic Range) | -70 dB |
| THD (Total Harmonic Distortion) | -66 dB |
| SINAD (Signal-to-Noise + Distortion Ratio) | 66 dB |
| Reference Voltage | Internal: 2.5V (MAX1248), External (MAX1249) |
| Operating Temperature Range | -40°C to +85°C (MAX1248AEEE+) |
| Package/Case | 16-SSOP (0.154", 3.90mm Width) |
| Power Dissipation | 667 mW (typical) |
Key Features
- 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 or external serial-interface clock for successive-approximation analog-to-digital conversions.
- Internal 2.5V reference voltage for MAX1248, and external reference voltage for MAX1249.
- Reference-buffer amplifier with ±1.5% voltage adjustment range.
- Hard-wired SHDN pin and software-selectable power-down mode.
- High conversion speed and low power consumption.
Applications
The MAX1248AEEE+ is suitable for a variety of applications requiring high-speed, low-power analog-to-digital conversion. These include:
- Industrial control systems
- Medical devices
- Aerospace and defense systems
- Automotive systems
- Data acquisition systems
Q & A
- What is the supply voltage range for the MAX1248AEEE+?
The supply voltage range is +2.7V to +5.25V.
- How many channels does the MAX1248AEEE+ have?
The MAX1248AEEE+ has 4 channels.
- What is the resolution of the MAX1248AEEE+ ADC?
The resolution is 10-bit.
- What is the typical conversion time of the MAX1248AEEE+?
The typical conversion time is 6 µs.
- Is the MAX1248AEEE+ compatible with SPI/QSPI/MICROWIRE interfaces?
Yes, it is compatible with these interfaces without external logic.
- Does the MAX1248AEEE+ have an internal or external reference voltage?
The MAX1248 has an internal 2.5V reference, while the MAX1249 requires an external reference.
- What is the operating temperature range for the MAX1248AEEE+?
The operating temperature range is -40°C to +85°C.
- What is the package type for the MAX1248AEEE+?
The package type is 16-SSOP (0.154", 3.90mm Width).
- What is the typical power dissipation of the MAX1248AEEE+?
The typical power dissipation is 667 mW.
- Does the MAX1248AEEE+ support power-down modes?
Yes, it supports both hard-wired SHDN pin and software-selectable power-down modes.
