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2Msps/3Msps, Low-Power, Serial 12-/10-/8-Bit ADCs

Small, Low-Power, SPI, 1-/2-Channel, 2Msps/3Msps ADCs

Product Details

The MAX11102, MAX11103, MAX11105, MAX11106, MAX11110, MAX11111, MAX11115–MAX11117 are 12-/10-/8-bit, compact, high-speed, low-power, successive approximation analog-to-digital converters (ADCs). These high-performance ADCs include a high-dynamic range sample-and-hold and a high-speed serial interface. These ADCs accept a full-scale input from 0V to the power supply or to the reference voltage.

The MAX11102/MAX11103/MAX11106/MAX11111 feature dual, single-ended analog inputs connected to the ADC core using a 2:1 MUX. The devices also include a separate supply input for data interface and a dedicated input for reference voltage. In contrast, the single-channel devices generate the reference voltage internally from the power supply.

These ADCs operate from a 2.2V to 3.6V supply and consume only 5.2mW at 3Msps and 3.7mW at 2Msps. The devices include full power-down mode and fast wake-up for optimal power management and a high-speed 3-wire serial interface. The 3-wire serial interface directly connects to SPI, QSPI, and MICROWIRE® devices without external logic.

Excellent dynamic performance, low voltage, low power, ease of use, and small package size make these converters ideal for portable battery-powered data-acquisition applications, and for other applications that demand low-power consumption and minimal space.

These ADCs are available in a 10-pin TDFN package, 10-pin µMAX® package, and a 6-pin SOT23 package. These devices operate over the -40°C to +125°C temperature range.

Key Features

  • 2Msps/3Msps Conversion Rate, No Pipeline Delay
  • 12-/10-/8-Bit Resolution
  • 1-/2-Channel, Single-Ended Analog Inputs
  • Low-Noise 73dB SNR
  • Variable I/O: 1.5V to 3.6V (Dual-Channel Only)
    • Allows the Serial Interface to Connect Directly to 1.5V, 1.8V, 2.5V, or 3V Digital Systems
  • 2.2V to 3.6V Supply Voltage
  • Low Power
    • 3.7mW at 2Msps
    • 5.2mW at 3Msps
    • Very Low Power Consumption at 2.5µA/ksps
  • External Reference Input (Dual-Channel Devices Only)
  • 1.3µA Power-Down Current
  • SPI-/QSPI-/MICROWIRE-Compatible Serial Interface
  • 10-Pin, 3mm x 3mm TDFN Package
  • 10-Pin, 3mm x 5mm µMAX Package
  • 6-Pin, 2.8mm x 2.9mm SOT23 Package
  • Wide -40°C to +125°C Operation

Applications/Uses

  • Automotive Systems
  • Battery-Operated Systems
  • Communication Systems
  • Data Acquisition
  • Medical Instrumentation
  • Portable Data Logging
Parametric specs for Precision ADCs (< 5Msps)
Resolution (bits) (ADC) 8
# Input Channels 1
Conv. Rate (ksps) (max) 3000
Data Bus SPI
ADC Architecture SAR
Diff/S.E. Input S.E. Only
External VREF (V) (min) 2.2
External VREF (V) (max) 3.6
Unipolar VIN (V) (max) 3.6
INL (±LSB) 0.25
Package/Pins SOT23/6
Budgetary
Price (See Notes)
$1.03 @1k
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Simplified Block Diagram

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Technical Docs

Design & Development

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Additional Resources

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Description

The MAX11105 evaluation kit (EV kit) is a fully assembled and tested PCB that evaluates the MAX11105 12-bit, SPI™-compatible, 2Msps, analog-to-digital converter (ADC). The EV kit also includes Windows XP®, Windows Vista®, and Windows® 7-compatible software that provides a simple graphical user interface (GUI) for exercising the features of the device. The EV kit comes with a MAX11105AUT+ installed in a 6-pin SOT package.

View Details

Features

  • 32MHz SPI Interface
  • Windows XP, Windows Vista, and Windows 7-Compatible Software
  • Time Domain, Frequency Domain, and Histogram Plotting in the EV Kit Software
  • Frequency, RMS, Min, Max, and Average DC Calculations in the EV Kit Software
  • Collects up to 1 Mega Samples
  • On-Board Input Buffer
  • USB-PC Connection
  • Proven PCB Layout
  • Fully Assembled and Tested

Description

The MAX11103 evaluation kit (EV kit) is a fully assembled and tested PCB that evaluates the MAX11103 2-channel, 12-bit, SPI™-compatible 3Msps analog-to-digital converter (ADC). The EV kit also includes Windows XP®, Windows Vista®, and Windows® 7-compatible software that provides a simple graphical user interface (GUI) for exercising the features of the device. The EV kit comes installed with a MAX11103AUB+ in a 10-pin µMAX® package with an exposed pad.

View Details

Features

  • 48MHz SPI Interface
  • Windows XP, Windows Vista, and Windows 7-Compatible Software
  • Time Domain, Frequency Domain, and Histogram Plotting in the EV Kit Software
  • Frequency, RMS, Min, Max, and Average DC Calculations in the EV Kit Software
  • Collects Up to One Mega Samples
  • On-Board Input Buffers
  • USB-PC Connection
  • Proven PCB Layout
  • Fully Assembled and Tested

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Parameters

Parametric specs for Precision ADCs (<u><</u> 5Msps)
Resolution (bits) (ADC) 8
# Input Channels 1
Conv. Rate (ksps) (max) 3000
Data Bus SPI
ADC Architecture SAR
Diff/S.E. Input S.E. Only
External VREF (V) (min) 2.2
External VREF (V) (max) 3.6
Unipolar VIN (V) (max) 3.6
INL (±LSB) 0.25
Package/Pins SOT23/6
Budgetary
Price (See Notes)
$1.03 @1k

Key Features

  • 2Msps/3Msps Conversion Rate, No Pipeline Delay
  • 12-/10-/8-Bit Resolution
  • 1-/2-Channel, Single-Ended Analog Inputs
  • Low-Noise 73dB SNR
  • Variable I/O: 1.5V to 3.6V (Dual-Channel Only)
    • Allows the Serial Interface to Connect Directly to 1.5V, 1.8V, 2.5V, or 3V Digital Systems
  • 2.2V to 3.6V Supply Voltage
  • Low Power
    • 3.7mW at 2Msps
    • 5.2mW at 3Msps
    • Very Low Power Consumption at 2.5µA/ksps
  • External Reference Input (Dual-Channel Devices Only)
  • 1.3µA Power-Down Current
  • SPI-/QSPI-/MICROWIRE-Compatible Serial Interface
  • 10-Pin, 3mm x 3mm TDFN Package
  • 10-Pin, 3mm x 5mm µMAX Package
  • 6-Pin, 2.8mm x 2.9mm SOT23 Package
  • Wide -40°C to +125°C Operation

Applications/Uses

  • Automotive Systems
  • Battery-Operated Systems
  • Communication Systems
  • Data Acquisition
  • Medical Instrumentation
  • Portable Data Logging

Description

The MAX11102, MAX11103, MAX11105, MAX11106, MAX11110, MAX11111, MAX11115–MAX11117 are 12-/10-/8-bit, compact, high-speed, low-power, successive approximation analog-to-digital converters (ADCs). These high-performance ADCs include a high-dynamic range sample-and-hold and a high-speed serial interface. These ADCs accept a full-scale input from 0V to the power supply or to the reference voltage.

The MAX11102/MAX11103/MAX11106/MAX11111 feature dual, single-ended analog inputs connected to the ADC core using a 2:1 MUX. The devices also include a separate supply input for data interface and a dedicated input for reference voltage. In contrast, the single-channel devices generate the reference voltage internally from the power supply.

These ADCs operate from a 2.2V to 3.6V supply and consume only 5.2mW at 3Msps and 3.7mW at 2Msps. The devices include full power-down mode and fast wake-up for optimal power management and a high-speed 3-wire serial interface. The 3-wire serial interface directly connects to SPI, QSPI, and MICROWIRE® devices without external logic.

Excellent dynamic performance, low voltage, low power, ease of use, and small package size make these converters ideal for portable battery-powered data-acquisition applications, and for other applications that demand low-power consumption and minimal space.

These ADCs are available in a 10-pin TDFN package, 10-pin µMAX® package, and a 6-pin SOT23 package. These devices operate over the -40°C to +125°C temperature range.

Simplified Block Diagram

Typical Operating Circuit Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal