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LTC2480 - 16-Bit Delta Sigma ADC with Easy Drive Input Current Cancellation

Features

  • Easy Drive Technology Enables Rail-to-Rail Inputs with Zero Differential Input Current
  • Directly Digitizes High Impedance Sensors with Full Accuracy
  • Programmable Gain from 1 to 256
  • Integrated Temperature Sensor
  • GND to VCC Input/Reference Common Mode Range
  • Programmable 50Hz, 60Hz or Simultaneous 50Hz/60Hz Rejection Mode
  • 2ppm (0.25LSB) INL, No Missing Codes
  • 1ppm Offset and 15ppm Full-Scale Error
  • Selectable 2x Speed Mode (15Hz Using Internal Oscillator)
  • No Latency: Digital Filter Settles in a Single Cycle
  • Single Supply 2.7V to 5.5V Operation
  • Internal Oscillator
  • Available in a Tiny (3mm × 3mm) 10-Lead DFN Package and 10-Lead MSOP Package

Typical Application

LTC2480 Typical Application
LTC2480 Typical Application

Description

The LTC2480 combines a 16-bit plus sign No Latency ΔΣ analog-to-digital converter with patented 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 input signals, with rail-to-rail input range to be directly digitized while maintaining exceptional DC accuracy.

The LTC2480 includes on-chip programmable gain, a temperature sensor and an oscillator. The LTC2480 can be configured to provide a programmable gain from 1 to 256 in 8 steps, measure an external signal or internal temperature sensor and reject line frequencies. 50Hz, 60Hz or simultaneous 50Hz/60Hz line frequency rejection can be selected as well as a 2x speed-up mode.

The LTC2480 allows a wide common mode input range (0V to VCC) independent of the reference voltage. The reference can be as low as 100mV or can be tied directly to VCC. The LTC2480 includes an on-chip trimmed oscillator eliminating the need for external crystals or oscillators. Absolute accuracy and low drift are automatically maintained through continuous, transparent, offset and full-scale calibration.

Packaging

For complete and up to date package information and drawings, please refer to our packaging page

DFN-10

LTC2480 Package Drawing
LTC2480 Package Drawing

Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LTC2480CDD DFN 10 C $2.64 $1.85 View
LTC2480CDD#PBF DFN 10 C $2.64 $1.85 View
LTC2480CDD#TR DFN 10 C $1.91 View
LTC2480CDD#TRPBF DFN 10 C $1.91 View
LTC2480CMS#PBF MSOP 10 C $2.64 $1.85 View
LTC2480CMS#TRPBF MSOP 10 C $1.91 View
LTC2480HDD#PBF DFN 10 H $3.65 $2.55 View
LTC2480HDD#TRPBF DFN 10 H $2.61 View
LTC2480HMS#PBF MSOP 10 H $3.65 $2.55 View
LTC2480HMS#TRPBF MSOP 10 H $2.61 View
LTC2480IDD DFN 10 I $3.18 $2.22 View
LTC2480IDD#PBF DFN 10 I $3.18 $2.22 View
LTC2480IDD#TR DFN 10 I $2.28 View
LTC2480IDD#TRPBF DFN 10 I $2.28 View
LTC2480IMS#PBF MSOP 10 I $3.18 $2.22 View
LTC2480IMS#TRPBF MSOP 10 I $2.28 View
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* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Part Number Description Price Documentation
DC798B LTC2480 | 16-Bit Differential ADC with Programmable Gain and Temperature Sensor (req DC590) $50.00
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Companion Boards

Part Number Description Price Documentation
DC590B USB Serial Controller for Linear Technology QuikEval Demo Boards $50.00
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Click here to view our complete list of demo boards

Applications

  • Direct Sensor Digitizer
  • Weight Scales
  • Direct Temperature Measurement
  • Strain Gauge Transducers
  • Instrumentation
  • Industrial Process Control
  • DVMs and Meters

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