MAX11205:16-Bit, Single-Channel, Ultra-Low Power, Delta-Sigma ADC with 2-Wire Serial Interface

Pin-Compatible Version of 24-/20-/18-Bit Family

The MAX11205 is an ultra-low-power (< 300µA max active current), high-resolution, serial output ADC. This device provides the highest resolution per unit power in the industry and is optimized for applications that require very high dynamic range with low power such as sensors on a 4mA to 20mA industrial control loop. The MAX11205 provides a high-accuracy internal oscillator that requires no external components. When used with the specified data rates, the internal digital filter provides more than 80dB rejection of 50Hz or 60Hz line noise. The MAX11205 provides a simple 2-wire serial interface in the space-saving, 10-pin µMAX® package. The MAX11205 operates over the -40°C to +85°C temperature range.

Key Features
  • 16-Bit Full-Scale Resolution
  • 720nVRMS Noise (MAX11205B)
  • 3ppm INL
  • No Missing Codes
  • Ultra-Low Power Dissipation
    • Operating Mode Current Drain < 300µA (max)
    • Sleep Mode Current Drain < 0.1µA
  • 2.7V to 3.6V Analog Supply Voltage Range
  • 1.7V to 3.6V Digital and I/O Supply Voltage Range
  • Fully Differential Signal Inputs
  • Fully Differential Reference Inputs
  • Internal System Clock
    • 2.4576MHz (MAX11205A)
    • 2.2528MHz (MAX11205B)
  • External Clock
  • Serial 2-Wire Interface (Clock Input and Data Output)
  • On-Demand Offset and Gain Self-Calibration
  • -40°C to +85°C Operating Temperature Range
  • ±2kV ESD Protection
  • Lead(Pb)-Free and RoHS-Compliant µMAX Package
MAX11205: Functional Diagram
MAX11205: Functional Diagram
Applications/Uses
  • Battery Applications
  • Portable Instrumentation
  • Sensor Measurement (Temperature and Pressure)
  • Weigh Scales
DataSheet
titleDownload file
MAX11205 Data SheetMAX11205.pdf
Parametrics
Part NumberResolution
(bits)
Input Chan.Conv. Rate
(ksps)
ADC ArchitectureData BusDiff/S.E. InputExternal VREF
(V)
External VREF
(V)
Unipolar VIN
(V)
Bipolar VIN
(±V)
INL
(±LSB)
Package/PinsBudgetary
Price
ADCmaxminmaxmaxmaxSee Notes
MAX112051610.12Sigma-DeltaSPIBoth03.63.63.620µMAX/10$1.69 @1k
Design kits & evaluation modules
Quality and Environmental Data
Related Products
  • MAX1358B:16-Bit, Data-Acquisition System with ADC, DACs, UPIOs, RTC, Voltage Monitors, and Temp Sensor
  • MAX1359B:16-Bit, Data-Acquisition System with ADC, DAC, UPIOs, RTC, Voltage Monitors, and Temp Sensor
  • MAX11201:24-Bit, Single-Channel, Ultra-Low-Power, Delta Sigma ADC with 2-Wire Serial Interface
  • MAX11200:24-Bit, Single-Channel, Ultra-Low Power, Delta-Sigma ADCs with GPIO
  • MAX11203:16-Bit, Single-Channel, Ultra-Low Power, Delta-Sigma ADC with Programmable Gain and GPIO
  • MAX11202:24-Bit, Single-Channel, Ultra-Low-Power, Delta-Sigma ADC with 2-Wire Serial Interface
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX11205AEUB+ActiveµMAX,;10 pin;15.4 mm²-40°C to +85°CLead Free
MAX11205AEUB+TActiveµMAX,;10 pin;15.4 mm²-40°C to +85°CLead Free
MAX11205BEUB+ActiveµMAX,;10 pin;15.4 mm²-40°C to +85°CLead Free
MAX11205BEUB+TActiveµMAX,;10 pin;15.4 mm²-40°C to +85°CLead Free
MAX11205.pdf MAX11205
MAX11205.pdf MAX11205
MAX11205.pdf MAX11205
MAX11205.pdf MAX11205
MAX11205.pdf MAX11205