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MAX11254
Analog Data Converters Analog-to-Digital Converters MAX11254
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MAX11254

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24-Bit, 6-Channel, 64ksps, 6.2nV/√Hz PGA, Delta-Sigma ADC with SPI Interface

24-Bit Delta-Sigma ADC Offers 10X Less Power with Superior Noise Performance

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Product Details

See parametric specs for Precision ADCs (< 5Msps)

Key Features

See parametric specs for Precision ADCs (< 5Msps)
Parametric specs for Precision ADCs (< 5Msps)
Resolution (bits) (ADC) 24
# Input Channels 6
Conv. Rate (ksps) (max) 64
Data Bus Microwire
QSPI
SPI
ADC Architecture Sigma-Delta
Diff/S.E. Input Diff. Only
External VREF (V) (min) 0
External VREF (V) (max) 3.6
Unipolar VIN (V) (max) 3.6
Bipolar VIN (±V) (max) 1.8
Package/Pins TQFN/32
Budgetary
Price (See Notes) 		6.06
See parametric specs for Precision ADCs (< 5Msps)
View Less

Simplified Block Diagram

Technical Docs

Data Sheet 24-Bit, 6-Channel, 64ksps, 6.2nV/√Hz PGA, Delta-Sigma ADC with SPI Interface Mar 19, 2019
App Note Using the MAX11254EVKIT as a Building Block Platform for Industrial Applications
App Note Precision Pressure Sensor Measurements Using the MAX11254 Analog-to-Digital Converter
App Note The Basics of Using the MAX11254/MAX11259 24-Bit ADCs with Integrated PGA for Sensor-Rich Applications
App Note RTD Measurement System Design Essentials
Design Solution Automotive Touch-Screen Sensing: It's All About Your ADC

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.

Parameters

Parametric specs for Precision ADCs (<u><</u> 5Msps)
Resolution (bits) (ADC) 24
# Input Channels 6
Conv. Rate (ksps) (max) 64
Data Bus Microwire
QSPI
SPI
ADC Architecture Sigma-Delta
Diff/S.E. Input Diff. Only
External VREF (V) (min) 0
External VREF (V) (max) 3.6
Unipolar VIN (V) (max) 3.6
Bipolar VIN (±V) (max) 1.8
Package/Pins TQFN/32
Budgetary
Price (See Notes) 		6.06
See parametric specs for Precision ADCs (<u><</u> 5Msps)

Key Features

  • High Resolution for Industrial Applications that Require a Wide Dynamic Range
    • 133dB SNR at 50sps
    • 124dB SNR at 1000sps
  • Longer Battery Life for Portable Applications
    • 2.2mA Operating Mode Current
    • 1µA Sleep Current
  • Single or Split Analog Supplies Provide Input Voltage Range Flexibility
    • 2.7V to 3.6V (Single Supply) or ±1.8V (Split Supply)
  • Enables System Integration
    • Low Noise, 6.2nV/√Hz PGA with Gains of 1, 2, 4, 8, 16, 32, 64, 128
    • 6-Channel, Fully Differential Input
  • Enables On-Demand Device and System Gain and Offset Calibration
    • User-Programmable Offset and Gain Registers
  • Robust Performance in a Small Package
    • -40°C to +125°C Operating Temperature Range
    • TQFN Package, 5mm x 5mm
  • AEC-Q100 Qualified, Refer to Ordering Information for List of /V Parts

Applications/Uses

  • Analog I/O for Programmable Logic Controllers
  • Automotive
  • Battery-Powered Instrumentation
  • Pressure Sensors
  • Weigh Scales

Description

The MAX11254 is a 6-channel, 24-bit delta-sigma ADC that achieves exceptional performance while consuming very low power. Sample rates up to 64ksps allow precision DC measurements. The MAX11254 communicates via a SPI serial interface and is available in a small (5mm x 5mm) TQFN package.

The MAX11254 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 MAX11254 to interface directly with high-impedance sources without compromising available dynamic range.

The MAX11254 operates from a single 2.7V to 3.6V analog supply, or split ±1.8V analog supplies, allowing the analog input to be sampled below ground. The digital supply range is 1.7V to 2.0V or 2.0V to 3.6V, allowing communication with 1.8V, 2.5V, 3V, or 3.3V logic.

Design Solution: Automotive Touch-Screen Sensing: It’s All About Your ADC ›

Simplified Block Diagram

MAX11254: Functional Diagram MAX11254: Functional Diagram Zoom icon

Technical Docs

Data Sheet 24-Bit, 6-Channel, 64ksps, 6.2nV/√Hz PGA, Delta-Sigma ADC with SPI Interface Mar 19, 2019
App Note Using the MAX11254EVKIT as a Building Block Platform for Industrial Applications
App Note Precision Pressure Sensor Measurements Using the MAX11254 Analog-to-Digital Converter
App Note The Basics of Using the MAX11254/MAX11259 24-Bit ADCs with Integrated PGA for Sensor-Rich Applications
App Note RTD Measurement System Design Essentials
Design Solution Automotive Touch-Screen Sensing: It's All About Your ADC

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.