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Analog-to-Digital Converters
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MAX11208
20-Bit, Single-Channel, Ultra-Low-Power, Delta-Sigma ADC with 2-Wire Serial Interface
Experience the Industry's Highest ENOB 20-bit ADC at < 1mW
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Key Features
Applications/Uses
Parametric specs for Precision ADCs (< 5Msps)
| Resolution (bits) (ADC) | 20 |
| # Input Channels | 1 |
| Conv. Rate (ksps) (max) | 0.12 |
| Data Bus | SPI |
| ADC Architecture | Sigma-Delta |
| Diff/S.E. Input | Both |
| External VREF (V) (min) | 0 |
| External VREF (V) (max) | 3.6 |
| Unipolar VIN (V) (max) | 3.6 |
| Bipolar VIN (±V) (max) | 3.6 |
| INL (±LSB) | 10 |
| Package/Pins | UMAX/10 |
| Budgetary Price (See Notes) | 2.12 |
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Simplified Block Diagram
Technical Docs
| Data Sheet | 20-Bit, Single-Channel, Ultra-Low-Power, Delta-Sigma ADC with 2-Wire Serial Interface | May 21, 2010 |
Support & Training
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Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Parameters
Parametric specs for Precision ADCs (<u><</u> 5Msps)
| Resolution (bits) (ADC) | 20 |
| # Input Channels | 1 |
| Conv. Rate (ksps) (max) | 0.12 |
| Data Bus | SPI |
| ADC Architecture | Sigma-Delta |
| Diff/S.E. Input | Both |
| External VREF (V) (min) | 0 |
| External VREF (V) (max) | 3.6 |
| Unipolar VIN (V) (max) | 3.6 |
| Bipolar VIN (±V) (max) | 3.6 |
| INL (±LSB) | 10 |
| Package/Pins | UMAX/10 |
| Budgetary Price (See Notes) | 2.12 |
Key Features
- 20-Bit Full-Scale Resolution
- 20-Bit Noise-Free Resolution at 13.75sps
- 19-Bit Noise-Free Resolution at 120sps
- 720nVRMS Noise (MAX11208B)
- 3ppm INL
- No Missing Codes
- Ultra-Low Power Dissipation
- Operating Mode Current Drain < 300µA (max)
- Sleep Mode Current Drain < 0.1µA
- 2.7V to 3.6V Analog Supply Voltage Range
- 1.7V to 3.6V Digital and I/O Supply Voltage Range
- Fully Differential Signal Inputs
- Fully Differential Reference Inputs
- Internal System Clock
- 2.4576MHz (MAX11208A)
- 2.2528MHz (MAX11208B)
- External Clock
- Serial 2-Wire Interface (Clock Input and Data Output)
- On-Demand Offset and Gain Self-Calibration
- -40°C to +85°C Operating Temperature Range
- ±2kV ESD Protection
- Lead(Pb)-Free and RoHS-Compliant µMAX Package
Applications/Uses
- Battery Applications
- Portable Instrumentation
- Sensor Measurement (Temperature and Pressure)
- Weigh Scales
Description
The MAX11208 is an ultra-low-power (< 300µA max active current), high-resolution, serial output ADC. This device provides the highest resolution per unit power in the industry and is optimized for applications that require very high dynamic range with low power such as sensors on a 4mA to 20mA industrial control loop. The MAX11208 provides a high-accuracy internal oscillator that requires no external components.
When used with the specified data rates, the internal digital filter provides more than 80dB rejection of 50Hz or 60Hz line noise. The MAX11208 provides a simple 2-wire serial interface in the space-saving, 10-pin µMAX® package. The MAX11208 operates over the -40°C to +85°C temperature range.
When used with the specified data rates, the internal digital filter provides more than 80dB rejection of 50Hz or 60Hz line noise. The MAX11208 provides a simple 2-wire serial interface in the space-saving, 10-pin µMAX® package. The MAX11208 operates over the -40°C to +85°C temperature range.
Technical Docs
| Data Sheet | 20-Bit, Single-Channel, Ultra-Low-Power, Delta-Sigma ADC with 2-Wire Serial Interface | May 21, 2010 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
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