LTC2488
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LTC2488

16-Bit 2-/4-Channel ΔΣ ADC with Easy Drive Input Current Cancellation

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 4
1ku List Price Starting From $2.60
Features
  • Up to 2 Differential or 4 Single-Ended Inputs
  • Easy Drive Technology Enables Rail-to-Rail Inputs with Zero Differential Input Current
  • Directly Digitizes High Impedance Sensors with Full Accuracy
  • 600nVRMS Noise (0.02LSB Transition Noise)
  • GND to VCC Input/Reference Common Mode Range
  • Simultaneous 50Hz/60Hz Rejection
  • 2ppm INL, No Missing Codes
  • 1ppm Offset and 15ppm Full-Scale Error
  • No Latency: Digital Filter Settles in a Single Cycle, Even After a New Channel is Selected
  • Single Supply 2.7V to 5.5V Operation (0.8mW)
  • Internal Oscillator
  • Tiny 4mm × 3mm DFN Package
Additional Details
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The LTC2488 is a 4-channel (2-channel differential), 16-bit, No Latency ΔΣ ADC with Easy Drive technology. The patented sampling scheme eliminates dynamic input current errors and the shortcomings of on-chip buffering through automatic cancellation of differential input current. This allows large external source impedances and rail-to-rail input signals to be directly digitized while maintaining exceptional DC accuracy.

The LTC2488 includes an integrated oscillator. This device can be configured to measure an external signal from combinations of 4 analog input channels operating in single ended or differential modes. It automatically rejects line frequencies of 50Hz and 60Hz simultaneously.

The LTC2488 allows a wide common mode, input range (0V to VCC), independent of the reference voltage. Any combination of single-ended or differential inputs can be selected and the first conversion after a new channel selection is valid.

Applications

  • Direct Sensor Digitizer
  • Direct Temperature Measurement
  • Instrumentation
  • Industrial Process Control
Part Models 4
1ku List Price Starting From $2.60

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

PCN

Feb 20, 2022

- 21_0269

Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products

LTC2488CDE#PBF

PRODUCTION

LTC2488CDE#TRPBF

PRODUCTION

LTC2488IDE#PBF

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Product Lifecycle

PCN

Feb 20, 2022

- 21_0269

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Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products

LTC2488CDE#PBF

PRODUCTION

LTC2488CDE#TRPBF

PRODUCTION

LTC2488IDE#PBF

PRODUCTION

LTC2488IDE#TRPBF

PRODUCTION

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