MAX11270

PRODUCTION

24-Bit, 10mW, 130dB SNR, 64ksps Delta-Sigma ADC with Integrated PGA

24-Bit ADC Offers the Highest SNR and Lowest Power in Its Class

Data Sheet (Rev. 1) Product Selection Table

Part Models: 2
1ku List Price: Starting From $7.86

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Part Details

High Resolution for Instrumentation Applications that Require a Wide Dynamic Range
- 130dB SNR at 1.9sps
- 112dB SNR at 1000sps
- 20.4-Bit Noise-Free Resolution at 1.9sps
- 17.4-Bit Noise-Free Resolution at 1000sps
Longer Battery Life for Portable Applications
- 2.4mA Operating Mode Current
- 4.4mA PGA Low-Noise Mode Current
- 1µA Sleep Current
High Accuracy for DC Measurements
- 1ppm INL (typ), 4ppm (max)
Single or Split Analog Supplies Provide Input Voltage Range Flexibility
- 2.7V to 3.6V (Single Supply) or ±1.8V (Split Supplies)
Flexible High-Performance Filter Architecture Simplifies Design
- Programmable SINC Filter
Enables System Integration
- Low-Noise PGA with Gains of 1, 2, 4, 8, 16, 32, 64, 128
- Signal Buffer Optional
- 3 General-Purpose I/Os
Enables Integrated Part and System Calibration for Gain and Offset
Robust 24-Pin TSSOP Packaging

Part Models: 2
1ku List Price: Starting From $7.86

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
MAX11270EUG+	Thin Shrink Small-Outline Package	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX11270EUG+T	Thin Shrink Small-Outline Package	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

May 14, 2015 - 1533 DESIGN,ELECTRICAL DA
		pcn_1533
MAX11270EUG+	PRODUCTION	pcn_1533

This is the most up-to-date revision of the Data Sheet.

Tools & Simulations

Software Development 1

MAX11270 24 Bit ADC EV Kit Software, 1.1.0

IBIS Model 1

MAX11270 IBIS Model

Evaluation Kits

Evaluation Kit for the MAX11270

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Features and Benefits

High-Speed USB, FMC Connector, and PMOD Connector
5MHz SPI Interface
Various Sample Sizes and Sample Rates
Collects Up to 1 Million Samples (with FPGA Platform)
Time Domain, Frequency Domain, and Histogram Plotting
Save Plots as jpg, bmp or csv
Sync In and Sync Out for Coherent Sampling (with FPGA Platform)
On-Board DAC (MAX542) for DC Signal-Level Generation
On-Board Voltage Reference (MAX6126)
Proven PCB Layout
Fully Assembled and Tested
Windows XP-, Windows 7-, and Windows 8.1-Compatible Software
Savable ADC Configurations

Product Details

The evaluation kit (EV kit) demonstrates the MAX1127X family of 24-bit, 64ksps delta-sigma ADCs with integrated PGA. The EV kit includes a graphical user interface (GUI) that provides communication from the target device to the PC. The EV kit can operate in multiple modes:

Standalone Mode: In "Standalone" mode, the EV kit is connected to the PC through a USB cable and performs a subset of the complete EV kit functions with limitation for sample rate and size.
FPGA Mode: In "FPGA" mode, the EV kit is connected to an Avnet ZedBoard™ through a low-pin-count FMC connector. ZedBoard features a Xilinx^® Zynq^®-7000 SoC that connects to the PC through an Ethernet port, which allows the GUI to perform different operations with full control over mezzanine card functions. The EV kit with FPGA platform performs the complete suite of evaluation tests for the target IC
User-Supplied SPI Mode: In addition to the USB and FMC interfaces, the EV kit provides two 12-pin PMOD-style headers for user-supplied SPI interface, to connect the signals for RDYB, SCLK, DIN, DOUT, and CSB.
The EV kit includes Windows XP^®-, Windows^® 7 and Windows 8.1-compatible software to exercise the features of the IC. The EV kit GUI allows different sample sizes, adjustable sampling rates, on-board or external reference options, and graphing software that includes the FFT and histogram of the sampled signals with the ability to save plots in .jpg or .csv formats.

The ZedBoard board accepts a +12V AC-DC wall adapter. The EV kit can be powered by the ZedBoard or by a local 12V supply. The EV kit has on-board transformers and digital isolators to separate the IC from the ZedBoard/on-board processor.

The MAX11270 EV kit comes installed with a MAX11270EUG+ in a 24-pin TSSOP package.
Applications
- ATE
- High-Precision Portable Sensors
- Medical Equipment
- Scientific Instrumentation

Resources

MAX11270EVKIT Gerber File - Design Files
4.51M

Reference Designs

MAXREFDES75#: 24-Bit Weigh Scale with a 16-Bit DAC, 0 to 10V Output

View Detailed Reference Design

Features and Benefits

Ratiometric measurement or measurement compared to a precision voltage reference
User-programmable offset and gain calibration for sensor (load cell)
User-programmable offset and gain calibration for DAC
User-programmable voltage output range mapping