Overview
The MAX11201AEUB+T is a 24-bit, single-channel, ultra-low-power, delta-sigma analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. 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 MAX11201 features a simple 2-wire serial interface and operates within a temperature range of -40°C to +85°C, ensuring reliability in various environmental conditions.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 24 bits |
| Effective Number of Bits (ENOB) | 23.3 bits |
| Noise-Free Resolution | 20.6 bits at 13.75 sps, 19.1 bits at 120 sps |
| Noise | 700 nVrms ±3.6 VFS input (MAX11201B) |
| Integral Nonlinearity (INL) | 3 ppm (typ), 10 ppm (max) |
| Power Consumption | < 320 µA (max active current), < 0.4 µA (sleep mode) |
| Analog Supply Voltage Range | 2.7 V to 3.6 V |
| Digital and I/O Supply Voltage Range | 1.7 V to 3.6 V |
| Input Type | Fully differential signal and reference inputs |
| Clock Options | Programmable internal system clock or external clock (2.4576 MHz for MAX11201A, 2.25275 MHz for MAX11201B) |
| Line Noise Rejection | > 100 dB (min) 50 Hz/60 Hz rejection |
| Interface | Serial 2-wire interface (clock input and data output) |
| Package | 10-pin µMAX® package |
Key Features
- Ultra-low power consumption: < 320 µA max active current and < 0.4 µA in sleep mode.
- High resolution: 24-bit with 23.3-bit ENOB.
- High accuracy: INL of 3 ppm (typ), 10 ppm (max), and no missing codes.
- Internal high-accuracy oscillator requiring no external components.
- Internal digital filter providing > 100 dB rejection of 50 Hz/60 Hz line noise.
- Simple 2-wire serial interface.
- Fully differential signal and reference inputs with high-impedance input buffers.
- On-demand offset and gain self-calibration.
- Power-on reset (POR) supply-monitoring circuitry for both digital and analog supplies.
Applications
The MAX11201 is optimized for applications requiring high dynamic range and low power consumption, such as:
- Sensors in industrial control loops (e.g., 4 mA to 20 mA loops).
- High-precision measurement systems.
- Low-power data acquisition systems.
- Industrial automation and control systems.
Q & A
- What is the resolution of the MAX11201 ADC?
The MAX11201 has a 24-bit resolution with an effective number of bits (ENOB) of 23.3 bits.
- What is the power consumption of the MAX11201?
The MAX11201 consumes less than 320 µA in active mode and less than 0.4 µA in sleep mode.
- What is the operating temperature range of the MAX11201?
The device operates over a temperature range of -40°C to +85°C.
- Does the MAX11201 require external components for its oscillator?
No, the MAX11201 has a high-accuracy internal oscillator that requires no external components.
- What type of interface does the MAX11201 use?
The MAX11201 uses a simple 2-wire serial interface.
- What is the line noise rejection capability of the MAX11201?
The internal digital filter provides more than 100 dB rejection of 50 Hz/60 Hz line noise.
- Does the MAX11201 support self-calibration?
- What type of input does the MAX11201 have?
The MAX11201 has fully differential signal and reference inputs with high-impedance input buffers.
- What is the package type of the MAX11201?
The MAX11201 is available in a 10-pin µMAX® package.
- What are some typical applications of the MAX11201?
The MAX11201 is typically used in sensors for industrial control loops, high-precision measurement systems, low-power data acquisition systems, and industrial automation and control systems.
