Overview
The MAX11212AEUB+ is an ultra-low power, high-resolution, single-channel, delta-sigma analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is optimized for applications requiring very high dynamic range with low power consumption. It features an internal high-accuracy oscillator that does not require any external components and provides a simple 2-wire serial interface. The MAX11212AEUB+ is particularly suited for sensor measurements, portable instrumentation, battery applications, and weigh scales due to its high resolution and low power characteristics.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 18-Bit Full-Scale Resolution |
| Noise | 720nVRMS (MAX11212B) |
| Integral Non-Linearity (INL) | 3ppm |
| Operating Current | < 300µA (max active), < 0.1µA (sleep mode) |
| Analog Supply Voltage Range | 2.7V to 3.6V |
| Digital and I/O Supply Voltage Range | 1.7V to 3.6V |
| Internal System Clock | 2.4576MHz (MAX11212A), 2.2528MHz (MAX11212B) |
| Operating Temperature Range | -40°C to +85°C |
| Package | 10-pin µMAX |
| ESD Protection | ±2kV |
Key Features
- Ultra-low power dissipation with < 300µA max active current and < 0.1µA sleep mode current
- High-accuracy internal oscillator requiring no external components
- Internal digital filter providing more than 80dB rejection of 50Hz or 60Hz line noise
- Simple 2-wire serial interface
- Fully differential signal inputs and fully differential reference inputs
- On-demand offset and gain self-calibration
- Lead(Pb)-free and RoHS-compliant package
Applications
- Sensor Measurement (Temperature and Pressure)
- Portable Instrumentation
- Battery Applications
- Weigh Scales
Q & A
- What is the resolution of the MAX11212AEUB+ ADC?
The MAX11212AEUB+ has an 18-bit full-scale resolution. - What is the maximum operating current of the MAX11212AEUB+?
The maximum operating current is less than 300µA. - What is the operating temperature range of the MAX11212AEUB+?
The operating temperature range is -40°C to +85°C. - Does the MAX11212AEUB+ require external components for its internal oscillator?
No, the internal oscillator does not require any external components. - What type of interface does the MAX11212AEUB+ use?
The MAX11212AEUB+ uses a simple 2-wire serial interface. - What is the noise performance of the MAX11212AEUB+?
The noise performance is 720nVRMS for the MAX11212B variant. - Is the MAX11212AEUB+ RoHS-compliant?
Yes, the MAX11212AEUB+ is lead(Pb)-free and RoHS-compliant. - What are the typical applications of the MAX11212AEUB+?
Typical applications include sensor measurement, portable instrumentation, battery applications, and weigh scales. - Does the MAX11212AEUB+ have built-in ESD protection?
Yes, it has ±2kV ESD protection. - What is the package type of the MAX11212AEUB+?
The package type is a 10-pin µMAX.
