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16-Bit, 85ksps ADC with 10µA Shutdown

Product Details

The MAX195 is a 16-bit successive-approximation analog-to-digital converter (ADC) that combines high speed, high accuracy, low power consumption, and a 10µA shutdown mode. Internal calibration circuitry corrects linearity and offset errors to maintain the full rated performance over the operating temperature range without external adjustments. The capacitive-DAC architecture provides an inherent 85ksps track/hold function.

The MAX195, with an external reference (up to +5V), offers a unipolar (0V to VREF) or bipolar (-VREF to VREF) pin-selectable input range. Separate analog and digital supplies minimize digital-noise coupling.

The chip select (CS) input controls the three-state serial-data output. The output can be read either during conversion as the bits are determined, or following conversion at up to 5Mbps using the serial clock (SCLK). The end-of-conversion (EOC) output can be used to interrupt a processor, or can be connected directly to the convert input (CONV) for continuous, full-speed conversions.

The MAX195 is available in 16-pin DIP, wide SO, and ceramic sidebraze packages.

Key Features

  • 16 Bits, No Missing Codes
  • 90dB SINAD
  • 9.4µs Conversion Time
  • 10µA (max) Shutdown Mode
  • Built-In Track/Hold
  • AC and DC Specified
  • Unipolar (0V to VREF) and Bipolar (-VREF to VREF) Input Range
  • Three-State Serial-Data Output
  • Small 16-Pin DIP, SO, and Ceramic SB Packages

Applications/Uses

  • Audio
  • Digital Signal Processing (DSP)
  • Industrial Controls
  • Medical Signal Acquisition
  • Multiple Transducer Measurements
  • Portable Instrumentation
  • Robotics
  • Vibration Analysis
Parametric specs for Precision ADCs (≤ 5Msps)
Resolution (bits) (ADC) 16
# Input Channels 1
Conv. Rate (ksps) (max) 85
Data Bus SPI
ADC Architecture SAR
Diff/S.E. Input S.E. Only
External VREF (V) (max) 5
Unipolar VIN (V) (max) 5
Bipolar VIN (±V) (max) 2.5
INL (±LSB) 1.96608
Package/Pins PDIP/16
SOIC (W)/16
Budgetary
Price (See Notes)
$35.73 @1k
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Simplified Block Diagram

MAX195: Functional Diagram MAX195: Functional Diagram Zoom icon

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Parameters

Parametric specs for Precision ADCs (≤ 5Msps)
Resolution (bits) (ADC) 16
# Input Channels 1
Conv. Rate (ksps) (max) 85
Data Bus SPI
ADC Architecture SAR
Diff/S.E. Input S.E. Only
External VREF (V) (max) 5
Unipolar VIN (V) (max) 5
Bipolar VIN (±V) (max) 2.5
INL (±LSB) 1.96608
Package/Pins PDIP/16
SOIC (W)/16
Budgetary
Price (See Notes)
$35.73 @1k

Key Features

  • 16 Bits, No Missing Codes
  • 90dB SINAD
  • 9.4µs Conversion Time
  • 10µA (max) Shutdown Mode
  • Built-In Track/Hold
  • AC and DC Specified
  • Unipolar (0V to VREF) and Bipolar (-VREF to VREF) Input Range
  • Three-State Serial-Data Output
  • Small 16-Pin DIP, SO, and Ceramic SB Packages

Applications/Uses

  • Audio
  • Digital Signal Processing (DSP)
  • Industrial Controls
  • Medical Signal Acquisition
  • Multiple Transducer Measurements
  • Portable Instrumentation
  • Robotics
  • Vibration Analysis

Description

The MAX195 is a 16-bit successive-approximation analog-to-digital converter (ADC) that combines high speed, high accuracy, low power consumption, and a 10µA shutdown mode. Internal calibration circuitry corrects linearity and offset errors to maintain the full rated performance over the operating temperature range without external adjustments. The capacitive-DAC architecture provides an inherent 85ksps track/hold function.

The MAX195, with an external reference (up to +5V), offers a unipolar (0V to VREF) or bipolar (-VREF to VREF) pin-selectable input range. Separate analog and digital supplies minimize digital-noise coupling.

The chip select (CS) input controls the three-state serial-data output. The output can be read either during conversion as the bits are determined, or following conversion at up to 5Mbps using the serial clock (SCLK). The end-of-conversion (EOC) output can be used to interrupt a processor, or can be connected directly to the convert input (CONV) for continuous, full-speed conversions.

The MAX195 is available in 16-pin DIP, wide SO, and ceramic sidebraze packages.

Simplified Block Diagram

MAX195: Functional Diagram MAX195: Functional Diagram 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.