MAX11156

18-Bit, 500ksps, ±5V SAR ADC with Internal Reference in TDFN

Industry's Smallest, True Bipolar ±5V, 18-Bit ADC


Please check latest availability status for a specific part variant.

Description

The MAX11156 18-bit, 500ksps, SAR ADC offers excellent AC and DC performance with true bipolar input range, small size, and internal reference. The MAX11156 measures a ±5V (10VP-P) input range while operating from a single 5V supply. A patented charge-pump architecture allows direct sampling of high-impedance sources. The MAX11156 integrates an optional internal reference and buffer, saving additional cost and space.

This ADC achieves 94.6dB SNR and -101.4dB THD (typ). The MAX11156 guarantees 18-bit no-missing codes and ±2.8 LSB INL (typ).

The MAX11156 communicates using an SPI-compatible serial interface at 2.5V, 3V, 3.3V, or 5V logic. The serial interface can be used to daisy-chain multiple ADCs in parallel for multichannel applications and provides a busy indicator option for simplified system synchronization and timing.

The MAX11156 is offered in a 12-pin, 3mm x 3mm, TDFN package and is specified over the -40°C to +85°C temperature range. 
MAX11156: Typical Operating Circuit MAX11156: Typical Operating Circuit Enlarge+

Key Features

  • High DC/AC Accuracy Improves Measurement Quality
    • 18-Bit Resolution with No Missing Codes
    • 500ksps Throughput Rates without Pipeline Delay/Latency
    • 94.6dB SNR and -101.4dB THD at 10kHz
    • 1.6 LSBRMS Transition Noise
    • ±0.5 LSB DNL (typ) and ±2.8 LSB INL (typ)
  • Highly Integrated ADC Saves Cost and Space
    • 6ppm/°C Internal Reference
    • Internal Reference Buffer
    • ±5V Bipolar Analog Input Range
  • Wide Supply Range and Low Power Simplify Power-Supply Design
    • 5V Analog Supply
    • 2.3V to 5V Digital Supply
    • 25.8mW Power Consumption at 500ksps
    • 10µA in Shutdown Mode
  • Multi-Industry Standard Serial Interface and Small Package Reduce Size
    • SPI/QSPI™/MICROWIRE®/DSP-Compatible Serial Interface
    • 3mm x 3mm Tiny 12-Pin TDFN Package

Applications/Uses

  • Automatic Test Equipment
  • Data Acquisition Systems
  • Industrial Control Systems/Process Control
  • Medical Instrumentation
Part NumberResolution
(bits)
Input Chan.Conv. Rate
(ksps)
ADC ArchitectureData BusDiff/S.E. InputInternal VREF
(V)
External VREF
(V)
External VREF
(V)
Bipolar VIN
(±V)
SNR
(dB)
THD
(dB)
INL
(±LSB)
Package/PinsBudgetary
Price
ADCmaxnominalminmaxmaxSee Notes
MAX11156 181500SAR
DSP-Compatible Serial
Microwire
QSPI
SPI
Both4.0962.54.25594.6-1052.5
TDFN/12
$16.90 @1k
See All Precision ADCs (< 5Msps) (464)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


MAX11156EVSYS: Evaluation System for the MAX11156

Technical Documents

Tutorial 2094 A Simple ADC Comparison Matrix

Quality and Environmental Data

Product Reliability Reports: MAX11156.pdf 
Lead-Free Package Tin (Sn) Whisker Reports

Additional Resources

Topmark Coding MAX11156

CAD Symbols and Footprints

  • MAX11156ETC+
  • MAX11156ETC+T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

    Quality Management System >
    Environmental Management System >

     
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    Temperature:

    Related Resources

    Type ID PDF Title
    Tutorial 2094 A Simple ADC Comparison Matrix
    PDF Title