MAX11202

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

Experience the Industry's Highest ENOB ADC at < 1mW

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Active: In Production.

Description

The MAX11202 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 MAX11202 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 MAX11202 provides a simple 2-wire serial interface in the space-saving, 10-pin µMAX® package. The MAX11202 operates over the -40°C to +85°C temperature range.


Using the MAX11200 family of ADCs and the MAX1403 ADC in platinum resistance temperature detectors (PRTD) applications.
 

Data Sheet

Download this datasheet in PDF formatDownload Rev 0 (PDF, 1.9MB)
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Key Features

  • 24-Bit Full-Scale Resolution
    • 20.5-Bit Noise-Free Resolution at 13.75sps
    • 19-Bit Noise-Free Resolution at 120sps
  • 720nVRMS Noise (MAX11202B)
  • 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 (MAX11202A)
    • 2.2528MHz (MAX11202B)
  • 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
 

Applications/Uses

  • Battery Applications
  • Portable Instrumentation
  • Sensor Measurement (Temperature and Pressure)
  • Weigh Scales
   

Key Specifications:

Precision ADCs (< 5Msps)
Part Number Resolution
(bits)
Input Chan. Conv. Rate
(ksps)
Data Bus
(bits)
Diff/S.E. Input External VREF
(V)
External VREF
(V)
Unipolar VIN
(V)
Bipolar VIN
(±V)
DNL
(±LSB)
INL
(±LSB)
Package/Pins Budgetary Price
ADC max min max max max See Notes
MAX11202  24 1 0.12 SPI Both 0 3.6 3.6 3.6 1 10
µMAX/10
$2.45 @1k
See All Precision ADCs (< 5Msps) (417)
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 prices and delivery, please see the price and availability page or contact an authorized distributor.


Diagram

MAX11202: Functional Diagram
Functional Diagram

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Information Index

Document Ref.: 19-5237 Rev 0; 2010-05-14
This page last modified: 2011-06-17




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