Thursday, July 19, 2012

MAX195 16-Bit, 85ksps ADC with 10µA Shutdown

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

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

Vibration Analysis