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Single-Supply, Low-Power, Serial 8-Bit ADCs

Lowest-Power 8-Bit Serial ADC Has Internal Reference

Product Details

Key Features

Parametric specs for Precision ADCs (< 5Msps)
Resolution (bits) (ADC) 8
# Input Channels 1
Conv. Rate (ksps) (max) 25
Data Bus SPI
ADC Architecture SAR
Diff/S.E. Input Both
Internal VREF (V) (nominal) 2.048
External VREF (V) (min) 1
External VREF (V) (max) 5.5
Unipolar VIN (V) (max) 5.5
INL (±LSB) 0.2
Package/Pins UMAX/10
Budgetary
Price (See Notes)
2.57
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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 1
Conv. Rate (ksps) (max) 25
Data Bus SPI
ADC Architecture SAR
Diff/S.E. Input Both
Internal VREF (V) (nominal) 2.048
External VREF (V) (min) 1
External VREF (V) (max) 5.5
Unipolar VIN (V) (max) 5.5
INL (±LSB) 0.2
Package/Pins UMAX/10
Budgetary
Price (See Notes)
2.57

Key Features

  • Single Supply:
    • +2.7V to +3.6V (MAX1106)
    • +4.5V to +5.5V (MAX1107)
  • Low Power:
    • 96µA at +3V and 25ksps
    • 0.5µA in Power-Down Mode
  • Pin-Programmable Configuration
  • 0 to VDD Input Voltage Range
  • Internal Track/Hold
  • Internal Reference:
    • +2.048V (MAX1106)
    • +4.096V (MAX1107)
  • 1V to VDD Reference Input Range
  • SPI/QSPI/MICROWIRE-Compatible Serial Interface
  • Small 10-Pin µMAX Package

Applications/Uses

  • 4mA- to 20mA-Powered Remote Systems
  • Handheld Measurement Devices
  • Medical Instruments
  • Receive Signal Strength Indicators
  • System Diagnostics

Description

The MAX1106/MAX1107 low-power, 8-bit, single-channel, analog-to-digital converters (ADCs) feature an internal track/hold (T/H), voltage reference, clock, and serial interface. The MAX1106 is specified from +2.7V to +3.6V and consumes only 96µA. The MAX1107 is specified from +4.5V to +5.5V and consumes only 107µA. The analog inputs are pin-configurable, allowing unipolar and single-ended or differential operation.

The full-scale analog input range is determined by the internal reference of +2.048V (MAX1106) or +4.096V (MAX1107), or by an externally applied reference ranging from 1V to VDD. The MAX1106/MAX1107 also feature a pin-selectable power-down mode that reduces power consumption to 0.5µA when the device is not in use. The 3-wire serial interface directly connects to SPI™, QSPI™, and MICROWIRE™ devices without external logic. Conversions up to 25ksps are performed using the internal clock.

The MAX1106/MAX1107 are available in a 10-pin µMAX® package with a footprint that is just 20% of an 8-pin plastic DIP.

Simplified Block Diagram

MAX1106, MAX1107: Typical Operating Circuit MAX1106, MAX1107: 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 .