Overview
The MAX1248ACEE+T, produced by Analog Devices Inc./Maxim Integrated, is a 10-bit, low-power, 4-channel serial analog-to-digital converter (ADC). This device is part of the MAX1248/MAX1249 family and is designed for high-speed data acquisition with low power consumption. It operates from a single supply voltage of +2.7V to +5.25V and features software-configurable analog inputs for unipolar/bipolar and single-ended/differential operation. The MAX1248ACEE+T includes a 4-channel multiplexer, high-bandwidth track/hold, and a 4-wire serial interface compatible with SPI, QSPI, and MICROWIRE devices, making it suitable for a variety of applications requiring precise and efficient analog-to-digital conversion.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 10 | Bits |
| Supply Voltage | +2.7V to +5.25V | V |
| Sampling Rate | Up to 133ksps | samples per second |
| Input Configuration | Software-configurable for unipolar/bipolar and single-ended/differential | |
| Reference Voltage | Internal 2.5V (MAX1248), External (MAX1249) | V |
| Power Consumption | 1.2mA (133ksps, +3V supply), 54µA (1ksps, +3V supply), 1µA (power-down mode) | A |
| Operating Temperature Range | 0°C to +70°C (C grade), -40°C to +85°C (E grade), -55°C to +125°C (MJE grade) | °C |
| Signal-to-Noise + Distortion Ratio (SINAD) | 66 dB | dB |
| Total Harmonic Distortion (THD) | -70 dB | dB |
| Spurious-Free Dynamic Range (SFDR) | 70 dB | dB |
| Channel-to-Channel Crosstalk | -75 dB | dB |
| Small-Signal Bandwidth | 2.25 MHz | MHz |
Key Features
- 4-channel multiplexer with high-bandwidth track/hold
- Software-configurable analog inputs for unipolar/bipolar and single-ended/differential operation
- 4-wire serial interface compatible with SPI, QSPI, and MICROWIRE devices
- Internal 2.5V reference (MAX1248) or external reference (MAX1249)
- Reference-buffer amplifier with ±1.5% voltage adjustment range
- Hard-wired SHDN pin and software-selectable power-down modes
- Low power consumption with multiple power-down modes
- 16-pin QSOP package
Applications
The MAX1248ACEE+T is suitable for various 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
- Embedded systems requiring precise analog-to-digital conversion
Q & A
- What is the resolution of the MAX1248ACEE+T ADC?
The MAX1248ACEE+T has a resolution of 10 bits.
- What is the operating supply voltage range of the MAX1248ACEE+T?
The device operates from a single supply voltage of +2.7V to +5.25V.
- What are the input configuration options for the MAX1248ACEE+T?
The analog inputs are software-configurable for unipolar/bipolar and single-ended/differential operation.
- What is the maximum sampling rate of the MAX1248ACEE+T?
The maximum sampling rate is up to 133ksps.
- Does the MAX1248ACEE+T have an internal reference voltage?
Yes, the MAX1248 has an internal 2.5V reference, while the MAX1249 requires an external reference.
- What are the power consumption modes of the MAX1248ACEE+T?
The device has multiple power consumption modes, including full power-down, fast power-down, and internal/external clock modes.
- What is the operating temperature range of the MAX1248ACEE+T?
The operating temperature range varies by grade: 0°C to +70°C (C grade), -40°C to +85°C (E grade), and -55°C to +125°C (MJE grade).
- What is the signal-to-noise + distortion ratio (SINAD) of the MAX1248ACEE+T?
The SINAD is 66 dB.
- Is the MAX1248ACEE+T compatible with SPI and other serial interfaces?
Yes, it is compatible with SPI, QSPI, MICROWIRE, and TMS320-family digital signal processors.
- What package type is the MAX1248ACEE+T available in?
The device is available in a 16-pin QSOP package.
