LCSC Electronics logoLCSC Electronics svg logo
Sign In
USD
Cart
ADI LTC2445CUHF#TRPBF product image
Images for reference only

ADI LTC2445CUHF#TRPBFRoHS

Manufacturer
ADI
MPN
LTC2445CUHF#TRPBF
LCSC Part #
C680717
Packaging
QFN-38-EP(5x7)
Customer #
Key Attributes
24-Bit High Speed △E ADCs with Selectable Speed/Resolution
Datasheetpdf iconADI LTC2445CUHF#TRPBF
In-Stock: 5
5 In stock, ships now
Minimum: 1Multiple: 1Sales Unit: Piece
Add to BOM List
QtyUnit PriceTotal Amount
1+$ 22.0492$ 22.05
10+$ 21.0538$ 210.54
30+$ 19.3315$ 579.95
100+$ 17.827$ 1782.70
Standard Packaging2500/Full Reel
Better price for more quantity?
$

Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Data Acquisition/Analog to Digital Converters (ADC)
ManufacturerADI
PackagingQFN-38-EP(5x7)
Operating Temperature0℃~+70℃
FeaturesProgrammable gain;Bipolar input;On-chip calibration
InterfaceSPI
Resolution(Bits)1.8MHz;24
Quiescent Current (Iq)8uA
Voltage - Supply4.5V~5.5V
DNL (LSB)-
Number of Channels8
ADC architectureSigma-Delta
Report an ErrorShow similar products (0) >

Introduction

AI Translation

The LTC2444/LTC2445/LTC2448/LTC2449 are 8-/16- channel (4-/8-differential) high speed 24-bit No Latency Delta-Sigma (TM) ADCs. They use a proprietary delta-sigma architecture enabling variable speed/resolution. Through a simple 4-wire serial interface, ten speed/resolution combinations 6.9Hz/280nVRMS to 3.5kHz/25µVRMS (4kHz with external oscillator) can be selected with no latency between conversion results or shift in DC accuracy (offset, full-scale, linearity, drift). Additionally, a 2X speed mode can be selected enabling output rates up to 7kHz (8kHz if an external oscillator is used) with one cycle latency. Any combination of single-ended or differential inputs can be selected with a common mode input range from ground to V_complement, independent of VREF. While operating in the 1X speed mode the first conversion following a new speed, resolution, or channel selection is valid. Since there is no settling time between conversions, all 8 differential channels can be scanned at a rate of 500Hz. At the conclusion of each conversion, the converter is internally reset eliminating any memory effects between successive conversions and assuring stability of the high order delta-sigma modulator.

Features

AI Translation
  • Up to 8 Differential or 16 Single-Ended Input Channels
  • Up to 8kHz Output Rate (External fO)
  • Up to 4kHz Multiplexing Rate (External fO)
  • Selectable Speed/Resolution
  • 2µVRMS Noise at 1.76kHz Output Rate
  • 200nVRMS Noise at 13.8Hz Output Rate with Simultaneous 50Hz/60Hz Rejection
  • Guaranteed Modulator Stability and Lock-Up Immunity for any Input and Reference Conditions
  • 0.0005% INL, No Missing Codes
  • Autosleep Enables 20µA Operation at 6.9Hz
  • <5µV Offset (4.5V < VCC < 5.5V, -40℃ to 85℃)
  • Differential Input and Differential Reference with GND to VCC Common Mode Range
  • No Latency Mode, Each Conversion is Accurate Even After a New Channel is Selected
  • Internal Oscillator—No External Components
  • LTC2445/LTC2449 Include MUXOUT/ADCIN for External Buffering or Gain
  • Tiny QFN 5mm x 7mm Package

Applications

AI Translation
  • High Speed Multiplexing
  • Weight Scales
  • Auto Ranging 6-Digit DVMs
  • Direct Temperature Measurement
  • High Speed Data Acquisition