Overview
The MAX11205BEUB+ 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 high dynamic range and low power consumption, such as sensors in industrial control loops (e.g., 4mA to 20mA loops). The MAX11205 features a high-accuracy internal oscillator that does not require external components and provides a simple 2-wire serial interface in a compact 10-pin µMAX package.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Resolution | 16 Bits | |||
| Noise | 720 nVRMS | |||
| Integral Nonlinearity (INL) | 3 ppm | 10 ppm | ||
| Operating Mode Current Drain | < 300 µA | |||
| Sleep Mode Current Drain | < 0.1 µA | |||
| Analog Supply Voltage Range | 2.7 V | 3.6 V | ||
| Digital and I/O Supply Voltage Range | 1.7 V | 3.6 V | ||
| Operating Temperature Range | -40°C | +85°C | ||
| 50Hz/60Hz Line Noise Rejection | > 80 dB |
Key Features
- Ultra-low power dissipation with an operating mode current drain of less than 300 µA and a sleep mode current drain of less than 0.1 µA.
- High-resolution 16-bit full-scale resolution.
- Low noise of 720 nVRMS (MAX11205B).
- No missing codes.
- Fully differential signal and reference inputs.
- High-accuracy internal oscillator requiring no external components.
- Programmable internal system clock or external clock.
- On-demand offset and gain self-calibration.
- Simple 2-wire serial interface.
- ±2 kV ESD protection.
- Lead(Pb)-free and RoHS-compliant.
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 MAX11205 ADC?
The MAX11205 has a 16-bit full-scale resolution.
- What is the typical noise level of the MAX11205?
The typical noise level is 720 nVRMS for the MAX11205B.
- What is the operating mode current drain of the MAX11205?
The operating mode current drain is less than 300 µA.
- What is the sleep mode current drain of the MAX11205?
The sleep mode current drain is less than 0.1 µA.
- What is the operating temperature range of the MAX11205?
The operating temperature range is from -40°C to +85°C.
- Does the MAX11205 have built-in ESD protection?
Yes, it has ±2 kV ESD protection.
- What type of interface does the MAX11205 use?
The MAX11205 uses a simple 2-wire serial interface.
- Does the MAX11205 require external components for its internal oscillator?
No, the MAX11205 has a high-accuracy internal oscillator that requires no external components.
- What is the line noise rejection capability of the MAX11205?
The MAX11205 provides more than 80 dB rejection of 50Hz or 60Hz line noise.
- Is the MAX11205 RoHS-compliant?
Yes, the MAX11205 is lead(Pb)-free and RoHS-compliant.
