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Analog Devices LTC2449IUHF#PBF — Discrete Semiconductors
Analog Devices

LTC2449IUHF#PBF 24-bit Sigma-Delta ADC, 8kSPS, 38-QFN

MPNLTC2449IUHF#PBF
End of Life

Analog Devices LTC2449IUHF#PBF, 24-bit Sigma-Delta ADC, 8kSPS, 8 differential/16 single-ended inputs, SPI, MUX-ADC, 38-QFN (5x7mm), Tube, -40 to 85°C, ROHS3.

$20.85Ref. price · indicative, final on quote
LTC2449IUHF#PBF datasheet
Packaging38-WFQFN Exposed Pad
StockContact for availability
Lead timeIn Stock wk
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

LTC2449IUHF#PBF Technical Specifications
ParameterValue
Input typeDifferential, Single Ended
Mounting typeSurface Mount
Reference typeExternal
Voltage - supply, analog5V
Voltage - supply, digital5V
Number of inputs8, 16
InterfaceSPI
Operating temperature-40°C ~ 85°C
PackageTube
ArchitectureSigma-Delta
ConfigurationMUX-ADC
Number of bits24
Case38-WFQFN Exposed Pad
Number of a (D converters)1
Sampling rate (Per second)8k

Product details

24-bit sigma-delta with channel density for multi-sensor front-ends

The LTC2449IUHF#PBF is a 24-bit sigma-delta ADC from Analog Devices that multiplexes up to 8 differential or 16 single-ended inputs through a single conversion core — a fit for multi-channel thermocouple, strain-gauge, or pressure-sensor arrays where per-channel cost and board space are tight. Sampling at 8 kSPS with an SPI data interface, it keeps the digital side simple — no parallel bus, no external timing logic — just a few wires to the host MCU's SPI port.

Single 5V rail and industrial temperature range simplify power and placement

Both analog and digital supplies run from a single 5V rail, so no separate 1.8V or 3.3V domain is needed for the ADC core — one clean 5V supply with a low-noise LDO feeds the whole device.

Active lifecycle and ROHS3 compliance — no supply chain surprises

ROHS3 compliant (exemptions-free), it passes EU and global environmental requirements without a waiver — no special handling or documentation overhead at the BOM level.

Frequently asked questions

What is the closest functional second-source to the LTC2449IUHF#PBF?

The AD7738BRUZ is a 24-bit sigma-delta ADC from Analog Devices with the same differential/single-ended input architecture, SPI interface, and external reference. It samples at 15.4 kSPS vs 8 kSPS and operates up to 105°C, but the pinout and package differ — the AD7738BRUZ comes in a 28-TSSOP, not the 38-QFN. Board-level compatibility requires a layout change.

What package does the LTC2449IUHF#PBF come in?

It ships in a 38-lead QFN (5x7mm body, 0.5mm pitch) with an exposed thermal pad. The supplier device package is 38-QFN (5x7). It is supplied in tube packaging.

What is the input type and channel count of the LTC2449IUHF#PBF?

It accepts both differential and single-ended inputs. In differential mode it handles 8 channels; in single-ended mode it handles 16 channels via an internal MUX feeding a single ADC core.