MAX40109
RECOMMENDED FOR NEW DESIGNSPrecision Signal Conditioning AFE for Pressure Sensor Applications
- Part Models
- 4
- 1ku List Price
- Starting From $2.62
Part Details
- Analog Front-End to Interface with Resistive Bridge-Based Pressure Sensors
- Temperature Measurement either directly from the Resistive Bridge or from an External Thermistor
- Analog Zero-Pressure Offset Compensation
- High-Precision PGA Front-End with 20 Gain Options
- Analog and Digital Outputs
- Digital 1-Wire, Power Line Communication (PLC) and I2C interfaces
- Calibration Memory with Third-Order Polynomial for Compensation from Temperature and Non-Linearity
- Internal Electromagnetic Interference (EMI) Rejection
- Supply Voltage Range: 3V to 36V
- Low 2mA (typ.) Supply Current
- Available in TQFN and WLP Packages
The MAX40109 is a low-power, precision sensor interface SoC that includes a high-precision, programmable Analog frontend (AFE), Analog-to-Digital Converter (ADC), calibration memory, and digital signal processing. It also includes a Digital-to-Analog Converter (DAC) with an output buffer to support analog voltage output and a 4mA–20mA current loop. It is designed for sensor applications such as strain gauges, pressure, force, and temperature.
This Sensor AFE has both analog and digital outputs. The digital 1-Wire/I2C interfaces program the calibration memory, the front-end Programmable gain amplifier (PGA)'s gain, and the internal current source that drives the sensors' bridge. The digital I2C interface can also be used to retrieve the digital output data and generate alarms.
The MAX40109 operates from 3V to 36V, is available inthe thin quad flat no-lead (TQFN) package and waferlevel package (WLP). It is specified over the -40°C to+125°C operating temperature range.
Applications
- Pressure Sensors
- Strain Gauges
- Force Sensors
- Temperature Sensors
- Wheatstone-Bridge
Documentation
Data Sheet 1
Video 2
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX40109IATP+ | Thin Quad Flatpack, No Leads | ||
| MAX40109IATP+T | Thin Quad Flatpack, No Leads | ||
| MAX40109IAWE+ | 16-WLCSP-N/A | ||
| MAX40109IAWE+T | 16-WLCSP-N/A |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| isoPower 4 | ||
| ADuM5020 | RECOMMENDED FOR NEW DESIGNS | Low Emission 500 mW Isolated DC-to-DC Converter |
| ADuM5028 | RECOMMENDED FOR NEW DESIGNS | Low Emission Isolated DC to DC Converter |
| ADuM6020 | RECOMMENDED FOR NEW DESIGNS | Low Emission, 5 kV Isolated DC-to-DC Converters |
| ADuM6028 | RECOMMENDED FOR NEW DESIGNS | Low Emission, 5 kV Isolated DC-to-DC Converters |
Tools & Simulations
Software Development 1
IBIS Model 1
Evaluation Kits
Evaluation System for the MAX40109