MAX11158

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

Small, True Bipolar Input, 18-Bit SAR ADC with Internal Reference


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Description

The MAX11158 is an 18-bit, 500ksps, SAR ADC offering excellent AC and DC performance with true bipolar input range, internal reference, and small size. The MAX11158 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 MAX11158 integrates a low drift reference with internal buffer, saving the cost and space of an external reference.

This ADC achieves 93.7dB SNR and -100.0dB THD. The MAX11158 guarantees 18-bit no-missing codes and ±2.7 LSB INL (typ).

The MAX11158 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 for multichannel applications and provides a busy indicator option for simplified system synchronization and timing.

The MAX11158 is offered in a 10-pin, 3mm x 5mm, μMAX® package and is specified over the -40°C to +85°C temperature range.

MAX11158: Typical Operating Circuit MAX11158: 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
    • 93.7dB SNR and -100.0dB THD at 10kHz
    • 2.0 LSBRMS Transition Noise
    • ±0.5 LSB DNL (typ) and ±2.7 LSB INL (typ)
  • Highly Integrated ADC Saves Cost and Space
    • ±7ppm/°C Internal Reference
    • Internal Reference Buffer
  • Wide Supply Range and Low Power Simplify Power-Supply Design
    • 5V Analog Supply
    • 2.3V to 5V Digital Supply
    • 38mW Power Consumption at 500ksps
    • 10µA in Shutdown Mode
  • Multi-Industry Standard Serial Interface and Small Package Reduces Size
    • SPI/QSPI™/MICROWIRE®/DSP-Compatible Serial Interface
    • 3mm x 5mm Tiny 10-Pin µMAX Package

Applications/Uses

  • Automatic Test Equipment
  • Data Acquisition Systems
  • Industrial Process Control
  • Medical Instrumentation

See parametric specs for Precision ADCs (< 5Msps) (434)


Part NumberResolution
(bits)
Input ChannelsConv. Rate
(ksps)
ADC ArchitectureData BusDiff/S.E. InputInternal VREF
(V)
Bipolar VIN
(±V)
SNR
(dB)
THD
(dB)
INL
(±LSB)
Package/PinsBudgetary
Price
ADCmaxnominalmaxSee Notes
MAX11158 181500SAR
DSP-Compatible Serial
Microwire
QSPI
SPI
Both4.096593.9-1012.7
UMAX/10
$16.70 @1k

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.

MAX11150EVKIT: Evaluation Kit for the MAX11150/MAX11152/MAX11158/MAX11160/MAX11161 /MAX11162 /MAX11163 /MAX11168 /MAX11169
MAX11152EVKIT: Evaluation Kit for the MAX11150/MAX11152/MAX11158/MAX11160/MAX11161 /MAX11162 /MAX11163 /MAX11168 /MAX11169
MAX11158EVKIT: Evaluation Kit for the MAX11150/MAX11152/MAX11158/MAX11160/MAX11161 /MAX11162 /MAX11163 /MAX11168 /MAX11169
MAX11160EVKIT: Evaluation Kit for the MAX11150/MAX11152/MAX11158/MAX11160/MAX11161 /MAX11162 /MAX11163 /MAX11168 /MAX11169
MAX11162EVKIT: Evaluation Kit for the MAX11150/MAX11152/MAX11158/MAX11160/MAX11161 /MAX11162 /MAX11163 /MAX11168 /MAX11169
MAX11168EVKIT: Evaluation Kit for the MAX11150/MAX11152/MAX11158/MAX11160/MAX11161 /MAX11162 /MAX11163 /MAX11168 /MAX11169
Request Reliability Report for: MAX11158 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

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.

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