Overview
The MAX11206EEE+T is a high-resolution, ultra-low-power, single-channel sigma-delta 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, temperature and pressure measurements, and weigh scales. It features a 20-bit resolution, programmable gain, and four GPIOs for external multiplexer control. The ADC operates with an internal high-accuracy oscillator that does not require external components and provides more than 100dB rejection of 50Hz or 60Hz line noise through its internal digital filter.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 20 bits |
| Input Type | Differential, Single Ended |
| 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 Type | 16-pin QSOP |
| Sampling Rate | Up to 480 SPS |
| Serial Interface | SPI, QSPI, MICROWIRE compatible |
| Programmable Gain | 1 to 128 |
| GPIOs | Four SPI-controlled GPIOs |
| Noise at 10sps | 570nVRMS |
| Integral Non-Linearity (INL) | 3ppm (typ), 10ppm (max) |
| Power Dissipation | < 300µA (active), < 0.4µA (sleep) |
| ESD Protection | ±2kV |
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 0.4µA.
- High-resolution 20-bit sigma-delta ADC with noise-free resolution and no missing codes.
- Digital programmable gain from 1 to 128.
- Four SPI-controlled GPIOs for external multiplexer control.
- Fully differential signal and reference inputs with optional input buffers.
- High-accuracy internal oscillator requiring no external components.
- On-demand offset and gain self-calibration and system calibration.
- High impedance inputs and power supply rejection of 80dB (AVDD) and 100dB (DVDD).
- Lead-free and RoHS-compliant QSOP package.
Applications
- Sensor Measurement (temperature and pressure)
- Portable Instrumentation
- Battery Applications
- Weigh Scales
- Industrial control loops (e.g., 4mA to 20mA)
- Signal Processing
- Power Management
- Portable Devices
Q & A
- What is the resolution of the MAX11206EEE+T ADC?
The MAX11206EEE+T has a 20-bit resolution.
- What is the operating temperature range of the MAX11206EEE+T?
The operating temperature range is from -40°C to +85°C.
- What types of supply voltages does the MAX11206EEE+T support?
The device supports an analog supply voltage range of 2.7V to 3.6V and a digital and I/O supply voltage range of 1.7V to 3.6V.
- What is the maximum sampling rate of the MAX11206EEE+T?
The maximum sampling rate is up to 480 SPS.
- Does the MAX11206EEE+T have built-in ESD protection?
- What serial interfaces are supported by the MAX11206EEE+T?
The device supports SPI, QSPI, and MICROWIRE compatible serial interfaces.
- Can the gain of the MAX11206EEE+T be programmed?
- What is the power dissipation of the MAX11206EEE+T in active and sleep modes?
In active mode, the current drain is less than 300µA, and in sleep mode, it is less than 0.4µA.
- Does the MAX11206EEE+T have input buffers?
- Is the MAX11206EEE+T RoHS-compliant?
