Overview
The MAX11208AEUB+ from Analog Devices Inc./Maxim Integrated is a 20-bit, single-channel, ultra-low-power delta-sigma analog-to-digital converter (ADC). This device is optimized for applications requiring high dynamic range and low power consumption, such as sensors in 4mA to 20mA industrial control loops. It features a high-accuracy internal oscillator that does not require external components and provides more than 80dB rejection of 50Hz or 60Hz line noise through its internal digital filter. The MAX11208AEUB+ is packaged in a space-saving 10-pin µMAX package and operates over a temperature range of -40°C to +85°C.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 20-bit full-scale resolution |
| Noise-Free Resolution | 20-bit at 13.75sps, 19-bit at 120sps |
| Supply Voltage Range | 1.7V to 3.6V (digital and I/O), 2.7V to 3.6V (analog) |
| Operating Temperature Range | -40°C to +85°C |
| Operating Mode Current Drain | < 300μA |
| Sleep Mode Current Drain | < 0.1μA |
| Signal Inputs | Fully differential signal inputs |
| Reference Inputs | Fully differential reference inputs |
| Internal System Clock | 2.4576MHz (MAX11208A) |
| Interface | 2-wire serial interface (clock input and data output) |
| ESD Protection | ±2kV |
| Package | 10-pin µMAX |
Key Features
- Ultra-low power dissipation with an operating mode current drain of less than 300μA and a sleep mode current drain of less than 0.1μA.
- High-accuracy internal oscillator requiring no external components.
- Internal digital filter providing more than 80dB rejection of 50Hz or 60Hz line noise.
- Fully differential signal and reference inputs.
- On-demand offset and gain self-calibration.
- ±2kV ESD protection.
- Lead(Pb)-free and RoHS-compliant µMAX package.
Applications
- Sensor measurement (temperature and pressure).
- Portable instrumentation.
- Battery applications.
- Weigh scales.
- Signal processing and sensing & instrumentation.
Q & A
- What is the resolution of the MAX11208AEUB+ ADC?
The MAX11208AEUB+ has a 20-bit full-scale resolution and can achieve 20-bit noise-free resolution at 13.75sps and 19-bit noise-free resolution at 120sps. - What is the operating temperature range of the MAX11208AEUB+?
The operating temperature range is from -40°C to +85°C. - What is the power consumption of the MAX11208AEUB+ in operating and sleep modes?
The operating mode current drain is less than 300μA, and the sleep mode current drain is less than 0.1μA. - Does the MAX11208AEUB+ require external components for its internal oscillator?
No, the MAX11208AEUB+ has a high-accuracy internal oscillator that requires no external components. - What type of interface does the MAX11208AEUB+ use?
The MAX11208AEUB+ uses a 2-wire serial interface with clock input and data output. - What is the ESD protection level of the MAX11208AEUB+?
The MAX11208AEUB+ has ±2kV ESD protection. - What are the typical applications of the MAX11208AEUB+?
Typical applications include sensor measurement, portable instrumentation, battery applications, and weigh scales. - Is the MAX11208AEUB+ RoHS-compliant?
Yes, the MAX11208AEUB+ is lead(Pb)-free and RoHS-compliant. - What is the package type of the MAX11208AEUB+?
The MAX11208AEUB+ is packaged in a 10-pin µMAX package. - Does the MAX11208AEUB+ support self-calibration?
Yes, the MAX11208AEUB+ supports on-demand offset and gain self-calibration.
