Overview
The MAX11202AEUB+T, produced by Analog Devices Inc./Maxim Integrated, is a 24-bit, single-channel, ultra-low-power Delta-Sigma analog-to-digital converter (ADC). This device is renowned for its high resolution and low power consumption, making it ideal for applications requiring high dynamic range and minimal power usage. The MAX11202 features a high-accuracy internal oscillator that does not require any external components and provides a simple 2-wire serial interface in a compact 10-pin µMAX package. It operates over a wide temperature range of -40°C to +85°C, ensuring reliability in various environmental conditions.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 24-bit full-scale | |
| Noise-Free Resolution | 20.5-bit at 13.75sps, 19-bit at 120sps | |
| Sampling Rate | 120sps (MAX11202B), 13.75sps (typical) | sps |
| Input Type | Fully differential | |
| Analog Supply Voltage Range | 2.7V to 3.6V | V |
| Digital and I/O Supply Voltage Range | 1.7V to 3.6V | V |
| Operating Current (Active) | < 300µA (max) | µA |
| Operating Current (Sleep) | < 0.1µA | µA |
| Internal System Clock | 2.4576MHz (MAX11202A), 2.2528MHz (MAX11202B) | MHz |
| Interface Type | 2-Wire Serial Interface | |
| Operating Temperature Range | -40°C to +85°C | °C |
| ESD Protection | ±2kV | V |
Key Features
- 24-bit full-scale resolution with up to 20.5-bit noise-free resolution at 13.75sps and 19-bit at 120sps
- Ultra-low power dissipation with < 300µA active current and < 0.1µA sleep current
- Fully differential signal and reference inputs
- High-accuracy internal oscillator requiring no external components
- Internal digital filter providing more than 80dB rejection of 50Hz or 60Hz line noise
- On-demand offset and gain self-calibration
- 2-wire serial interface in a 10-pin µMAX package
- Lead(Pb)-free and RoHS-compliant
Applications
- Sensor measurement (temperature and pressure)
- Portable instrumentation
- Battery applications
- Weigh scales
- Industrial control loops (e.g., 4mA to 20mA)
Q & A
- What is the resolution of the MAX11202?
The MAX11202 has a 24-bit full-scale resolution, with up to 20.5-bit noise-free resolution at 13.75sps and 19-bit at 120sps.
- What is the power consumption of the MAX11202?
The MAX11202 has an ultra-low power consumption of less than 300µA in active mode and less than 0.1µA in sleep mode.
- What type of interface does the MAX11202 use?
The MAX11202 uses a 2-wire serial interface.
- What is the operating temperature range of the MAX11202?
The MAX11202 operates over a temperature range of -40°C to +85°C.
- Does the MAX11202 require external components for its oscillator?
No, the MAX11202 features a high-accuracy internal oscillator that requires no external components.
- What kind of noise rejection does the MAX11202 offer?
The MAX11202 provides more than 80dB rejection of 50Hz or 60Hz line noise through its internal digital filter.
- Is the MAX11202 RoHS-compliant?
- What are some common applications of the MAX11202?
- What is the package type of the MAX11202?
- Does the MAX11202 offer self-calibration features?
