MAX11161:16-Bit, 250ksps, +5V SAR ADC with Internal Reference in µMAX

ADC with Internal Reference in Industry-Standard 10-Pin Package

The MAX11161 is a 16-bit, 250ksps, SAR ADC offering excellent AC and DC performance with true unipolar input range, internal reference, and small size. The MAX11161 measures a +5V (0 to 5V) input range and can operate with a single 5V supply. The MAX11161 integrates a low drift reference with internal buffer, saving the cost and space of an external reference. This ADC achieves 92.2dB SNR at 10kHz and -106.5dB THD. The MAX11161 guarantees 16-bit no-missing codes and ±0.8 LSB INL (typ). The MAX11161 communicates using an SPI-compatible serial interface at 2.3V, 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 MAX11161 is offered in a 10-pin, 3mm x 5mm, µMAX® package and is specified over the -40°C to +85°C temperature range.

Key Features
  • High DC/AC Accuracy Improves Measurement Quality
    • 16-Bit Resolution with No Missing Codes
    • 250ksps Throughput Rates Without Pipeline Delay/Latency
    • 92.2dB SNR and -106.5dB THD at 10kHz
    • 0.5 LSBRMS Transition Noise
    • ±0.8 LSB INL (typ) and ±0.3 LSB DNL (typ)
  • Highly Integrated ADC Saves Cost and Space
    • ±7ppm/°C Internal Reference
    • Internal Reference Buffer
  • Flexible and Low Power Supply Saves Space and Cost
    • +5V Analog and +2.3V to +5V Digital Supply
    • 31mW Power Consumption at 250ksps
    • 10µA in Shutdown Mode
  • Multi-Industry Standard Serial Interface and Small Package Reduces Size
    • SPI/QSPI™/MICROWIRE®/DSP-Compatible
    • 3mm x 5mm, Tiny 10-Pin µMAX Package
MAX11161: Typical Operating Circuit
MAX11161: Typical Operating Circuit
Applications/Uses
  • Automatic Test Equipment
  • Data Acquisition Systems
  • Industrial Process Control
  • Medical Instrumentation
DataSheet
titleDownload file
MAX11161 Data SheetMAX11161.pdf
Parametrics
Part NumberResolution
(bits)
Input Chan.Conv. Rate
(ksps)
ADC ArchitectureData BusDiff/S.E. InputInternal VREF
(V)
Unipolar VIN
(V)
SNR
(dB)
THD
(dB)
INL
(±LSB)
Package/PinsBudgetary
Price
ADCmaxnominalmaxSee Notes
MAX11161161250SARSPIBoth4.096593-1051µMAX/10$4.90 @1k
Design kits & evaluation modules
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX11161EUB+ActiveµMAX,;10 pin;15.4 mm²-40°C to +85°CLead Free
MAX11161EUB+TActiveµMAX,;10 pin;15.4 mm²-40°C to +85°CLead Free
MAX11161.pdf MAX11161
MAX11161.pdf MAX11161