MAX11261
24-Bit, 6-Channel, 16ksps, 6.2nV/√Hz PGA, Delta-Sigma ADC with I2C Interface
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24-Bit Delta-Sigma ADC Offers the most integrated solution for Force Sense
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Features
- Analog Supply
- 2.7V to 3.6V
- Digital Supply
- Internal LDO Disabled—1.7V to 2.0V
- Internal LDO Enabled—2.0V to 3.6V
- 3ppm INL (typ)
- PGA
- Gains of 1, 2, 4, 8, 16, 32, 64, 128
- Low-Noise Mode, 6.2nV/
Noise
- Low-Power Mode, 10nV/ Noise
- Input-Referred Noise
- PGA Low-Noise Mode, Gain of 64 at 1ksps Continuous, 0.15μVRMS
- Fully Differential Signal and Reference Inputs
- Internal System Clock of 8.192MHz
- I2C-Compatible Serial Interface
- Supports Standard, Fast-Mode, and Fast-Mode Plus I2C Specifications
- 64-Entry On-Chip FIFO
- Hardware Interrupt for Input Monitoring and FIFO Usage
- On-Demand Self and System Gain and Offset Calibration
- User-Programmable Offset and Gain Registers
- Two Power-Down Modes (SLEEP and STANDBY)
- Low Power Dissipation
- ESD Rating: ±2.5kV (HBM), 750V (CDM)
- -40°C to +85°C Operating Temperature Range
- 6 x 6 Bump, 0.4mm Pitch, 2.838mm x 2.838mm x 0.5mm WLP
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The MAX11261 is a 6-channel, 24-bit delta-sigma ADC that achieves exceptional performance while consuming very low power. Sample rates up to 16ksps allow precision DC measurements. The device also features a 64-entry, on-chip FIFO to offload the host processor. The MAX11261 communicates through an I2C-compatible serial interface and is available in a small, wafer-level package (WLP).
The MAX11261 offers a 6.2nV/ noise programmable gain amplifier (PGA) with gain settings from 1x to 128x. The integrated PGA provides isolation of the signal inputs from the switched capacitor sampling network. The PGA also enables the MAX11261 to interface directly with high-impedance sources without compromising the available dynamic range.
The MAX11261 operates from a single 2.7V to 3.6V analog supply. The digital supply range is 1.7V to 2.0V (internal LDO off) and 2.0V to 3.6V (internal LDO on) enabling communication with 1.8V, 2.5V, 3V, or 3.3V logic.
Applications
- Battery-Powered Instrumentation
- Medical Equipment
- Pressure Sensors
- Wearable Electronics
- Weigh Scales
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MAX11261
Documentation
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Documentation
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 |
|---|---|---|---|
| MAX11261ENX+ |
36-WLCSP-N/A
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| MAX11261ENX+T |
36-WLCSP-N/A
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- MAX11261ENX+
- Pin/Package Drawing
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36-WLCSP-N/A
- Documentation
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HTML
Material Declaration
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HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
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Ultra Librarian
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SamacSys
- MAX11261ENX+T
- Pin/Package Drawing
-
36-WLCSP-N/A
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
Evaluation Kits 1
MAX11261SYS1
Evaluation Kit for the MAX11261
Product Detail
The MAX11261PMB peripheral module (Pmod™) provides the necessary hardware to interface to the MAX11261, a 24-bit, 6-channel, 16ksps, integrated PGA delta-sigma ADC to any system that utilizes Pmod-compatible expansion ports configurable for I2C communication. The peripheral module includes a graphical user interface (GUI) that provides communication from the target device to the PC through the USB2PMB2#. The peripheral module can operate in multiple modes:
Using USB2PMB2# Adapter: In “standalone” mode, the peripheral module is connected to the PC through a USB2PMB2# adapter board and performs a subset of the complete peripheral module functions with limitations for sample rate, sample size, and no support for coherent sampling.
User-Supplied I2C Mode: The peripheral module provides a 12-pin Pmod-style header for user-supplied I2C interface to connect the signals for SCL, SDA, RSTB, and RDYB.
The peripheral module includes Windows XP®, Windows® 7, Windows 8.1, and Windows 10-compatible software for exercising the features of the IC. The peripheral module GUI allows different sample sizes, adjustable sampling rates, internal or external reference options, and graphing software that includes the FFT and histogram of the sampled signals.
The peripheral module can be powered by a local +3.3V supply and comes installed with a MAX11261ENX+ in a 36-bump wafer-level package (WLP).
Resources
Evaluation Kits1
Tools & Simulations 2
Software Development 1
IBIS Model 1
IBIS Model
