Overview
The MAX1254AEUE+ is a stand-alone, 10-channel, 12-bit system monitor analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This integrated circuit is designed to provide comprehensive system monitoring capabilities, including voltage measurement, temperature sensing, and power supply monitoring.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|---|
| Resolution | - | - | - | 12 bits | - | - |
| Number of Channels | - | - | - | 10 (8 external, 2 internal) | - | - |
| Conversion Rate | fSCLK | 10MHz (50% duty cycle) | - | 70 ksps | - | ksps |
| Conversion Time | tCONV | Manual trigger, voltage measurement | 70 | - | 80 | µs |
| Input Voltage Range | VIN | -VREF / 2 to +VREF / 2 | - | - | - | V |
| Internal Reference Voltage | VREF | - | 4.024 | 4.096 | 4.168 | V |
| Power Supply Voltage | VDD | - | 4.5 | - | 5.5 | V |
| Operating Temperature Range | TA | - | -40 | - | +85 | °C |
Key Features
- Stand-alone, 10-channel (8 external, 2 internal) 12-bit ADC with internal reference and temperature sensor.
- High conversion rate of up to 70 ksps.
- Internal temperature sensor with ±1°C accuracy over the -40°C to +85°C range.
- Voltage measurement capabilities with bipolar, differential, and single-ended input configurations.
- Low power consumption with power-up time of 40µs to 45µs.
- High common-mode rejection ratio (CMRR) of -90 dB for differentially configured inputs.
- Serial interface compatible with SPI, QSPI, and MICROWIRE.
Applications
- System supervision and control in various industrial and automotive systems.
- Data-acquisition systems requiring multiple channel monitoring.
- Power supply monitoring and voltage regulation systems.
- Temperature monitoring in industrial and consumer electronics.
- Automotive systems for real-time monitoring and control.
Q & A
- What is the resolution of the MAX1254AEUE+ ADC?
The MAX1254AEUE+ has a 12-bit resolution.
- How many channels does the MAX1254AEUE+ support?
The MAX1254AEUE+ supports 10 channels, with 8 external and 2 internal channels.
- What is the conversion rate of the MAX1254AEUE+?
The conversion rate is up to 70 ksps.
- What is the accuracy of the internal temperature sensor?
The internal temperature sensor has an accuracy of ±1°C over the -40°C to +85°C range.
- What are the input voltage range and configurations supported by the MAX1254AEUE+?
The input voltage range is -VREF / 2 to +VREF / 2, and it supports bipolar, differential, and single-ended input configurations.
- What is the power supply voltage range for the MAX1254AEUE+?
The power supply voltage range is from 4.5V to 5.5V.
- What is the operating temperature range of the MAX1254AEUE+?
The operating temperature range is from -40°C to +85°C.
- Does the MAX1254AEUE+ have any specific serial interface compatibility?
Yes, it is compatible with SPI, QSPI, and MICROWIRE serial interfaces.
- What are some common applications of the MAX1254AEUE+?
Common applications include system supervision and control, data-acquisition systems, power supply monitoring, temperature monitoring, and automotive systems.
- How does the MAX1254AEUE+ contribute to power efficiency in systems?
The MAX1254AEUE+ contributes to power efficiency through its low power consumption and fast power-up time.
