Overview
The MAX11201BEUB+ 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, such as sensors in industrial control loops (e.g., 4mA to 20mA loops). The MAX11201BEUB+ stands out for its high resolution per unit power, making it ideal for precision measurement applications.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 24-Bit |
| Effective Number of Bits (ENOB) | 23.3-Bit at 13.75sps, 20.6-Bit at 13.75sps, 19.1-Bit at 120sps |
| Noise | 700nVRMS |
| Input Range | ±3.6VFS (MAX11201B) |
| Integral Non-Linearity (INL) | 3ppm (typ), 10ppm (max) |
| Power Consumption | < 320µA (max) in operating mode, < 0.4µA in sleep mode |
| Analog Supply Voltage Range | 2.7V to 3.6V |
| Digital and I/O Supply Voltage Range | 1.7V to 3.6V |
| Operating Temperature Range | -40°C to +85°C |
| Package | 10-pin FMAXM |
| Interface | 2-Wire Serial Interface (Clock Input and Data Output) |
| Internal System Clock | 2.4576MHz (MAX11201A), 2.25275MHz (MAX11201B) |
| Line Noise Rejection | > 100dB (min) 50Hz/60Hz rejection |
Key Features
- Ultra-low power consumption with < 320µA max active current and < 0.4µA in sleep mode.
- High-accuracy internal oscillator requiring no external components.
- High dynamic range with low power, suitable for sensors in industrial control loops.
- Fully differential signal and reference inputs with high-impedance input buffers.
- Programmable internal system clock or external clock option.
- Serial 2-wire interface for clock input and data output.
- On-demand offset and gain self-calibration.
- Power-on reset (POR) supply-monitoring circuitry for both digital and analog supplies.
- Lead(Pb)-Free and RoHS-Compliant package.
- ±2kV ESD protection.
Applications
- Sensor measurement (temperature, pressure, etc.).
- Portable instrumentation.
- Battery applications.
- Weigh scales.
- Industrial control loops (e.g., 4mA to 20mA loops).
Q & A
- What is the resolution of the MAX11201BEUB+ ADC? The MAX11201BEUB+ has a 24-bit resolution.
- What is the power consumption of the MAX11201BEUB+ in operating mode? The power consumption is less than 320µA in operating mode.
- What is the operating temperature range of the MAX11201BEUB+? The operating temperature range is -40°C to +85°C.
- Does the MAX11201BEUB+ require external components for its internal oscillator? No, the internal oscillator does not require any external components.
- What type of interface does the MAX11201BEUB+ use? The MAX11201BEUB+ uses a 2-wire serial interface.
- What is the line noise rejection capability of the MAX11201BEUB+? The device provides more than 100dB rejection of 50Hz or 60Hz line noise.
- Is the MAX11201BEUB+ RoHS-Compliant? Yes, the MAX11201BEUB+ is Lead(Pb)-Free and RoHS-Compliant.
- What is the input range of the MAX11201BEUB+? The input range is ±3.6VFS for the MAX11201B variant.
- Does the MAX11201BEUB+ support self-calibration? Yes, it supports on-demand offset and gain self-calibration.
- What is the package type of the MAX11201BEUB+? The device is packaged in a 10-pin FMAXM package.
