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500ksps, Low-Power, Serial 12-/10-/8-Bit ADCs

Small, Low-Power, SPI, 1-/2-Channel, 500ksps ADCs

Product Details

Key Features

Parametric specs for Precision ADCs (< 5Msps)
Resolution (bits) (ADC) 8
# Input Channels 2
Conv. Rate (ksps) (max) 500
Data Bus SPI
ADC Architecture SAR
Diff/S.E. Input S.E. Only
External VREF (V) (min) 1
External VREF (V) (max) 3.65
Unipolar VIN (V) (max) 3.6
INL (±LSB) 0.25
Package/Pins UMAX/10
Budgetary
Price (See Notes)
1.2
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Simplified Block Diagram

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Parameters

Parametric specs for Precision ADCs (<u><</u> 5Msps)
Resolution (bits) (ADC) 8
# Input Channels 2
Conv. Rate (ksps) (max) 500
Data Bus SPI
ADC Architecture SAR
Diff/S.E. Input S.E. Only
External VREF (V) (min) 1
External VREF (V) (max) 3.65
Unipolar VIN (V) (max) 3.6
INL (±LSB) 0.25
Package/Pins UMAX/10
Budgetary
Price (See Notes)
1.2

Key Features

  • 500ksps 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
    • 3.3mW
    • Very Low Power Consumption at 8µA/ksps
  • External Reference Input (Dual-Channel Devices Only)
  • 1.3µA Power-Down Current
  • SPI-/QSPI-/MICROWIRE-Compatible Serial Interface
  • 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 MAX11661−MAX11666 are 12-/10-/8-bit, compact, 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 MAX11662/MAX11664/MAX11666 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 3.3mW. The devices include full powerdown 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 µMAX® package, and a 6-pin SOT23 package. These devices operate over the -40°C to +125°C temperature range.

Simplified Block Diagram

MAX11661, MAX11662, MAX11663, MAX11664, MAX11665, MAX11666: Typical Application Circuit MAX11661, MAX11662, MAX11663, MAX11664, MAX11665, MAX11666: Typical Application 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 .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.