LTC2444IUHF Analog Devices Integrated Circuit (Quad Flat No-Lead) In Stock
LTC2444IUHF is a 24-bit delta-sigma ADC from Analog Devices featuring 8 analog input channels, 0.0015% maximum linearity error, and analog input range from -0.05 V to 2.75 V in a 38-pin QFN package. It delivers high-precision data acquisition with conversion times up to 170,000 µs for maximum noise rejection. Available worldwide through authorized Analog Devices distributors.
- Manufacturer
- Analog Devices
- Package
- Quad Flat No-Lead
- Pin Count
- 39
- Lifecycle
- OBSOLETE
- Datasheet
- LTC2444IUHF Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LTC2444IUHF?
- 24-bit delta-sigma conversion resolution for ultra-high-precision DC and low-frequency measurement
- 8 multiplexed analog input channels covering -0.05 V to 2.75 V input range in a single device
- 0.0015% maximum linearity error enabling sub-ppm-level accuracy in calibration and metrology instruments
- Selectable conversion time up to 170,000 µs for maximum noise rejection in electrically noisy environments
- Compact 38-pin QFN package (R-PQCC-N38) for space-efficient precision analog PCB layouts
What is LTC2444IUHF used for?
LTC2444IUHF is designed for high-precision multi-channel data acquisition systems such as laboratory weigh scales, precision thermocouple data loggers, and scientific instrumentation requiring 24-bit resolution across 8 input channels without sacrificing linearity. Its 0.0015% linearity error and delta-sigma architecture suit applications in industrial process control where sub-millivolt accuracy over the full -0.05 V to 2.75 V input range is mandatory. Designers also integrate it into battery-powered portable calibrators and precision strain gauge bridges where long conversion times maximize noise rejection beyond 100 dB ENOB.
What are the specifications of LTC2444IUHF?
| YTEOL | 0 |
| Analog Input Voltage-Max | 2.75V |
| Analog Input Voltage-Min | -0.05 V |
| Conversion Time-Max | 170000 µs |
| Converter Type | ADC, DELTA-SIGMA |
| JESD-30 Code | R-PQCC-N38 |
| JESD-609 Code | e0 |
| Linearity Error-Max (EL) | 0.0015% |
| Number of Analog In Channels | 8 |
| Number of Bits | 24 |
| Number of Functions | 1 |
| Output Bit Code | BINARY |
| Output Format | SERIAL |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC38,.2X.28,20 |
| Package Shape | RECTANGULAR |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Qualification Status | Not Qualified |
| Supply Current-Max | 11mA |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.30 |
Where can I find the LTC2444IUHF datasheet?
LTC2444IUHF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC2444IUHF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What resolution does LTC2444IUHF provide and how does 24-bit depth improve measurement accuracy over 16-bit alternatives?
LTC2444IUHF provides 24-bit resolution, representing 16,777,216 discrete levels versus 65,536 for a 16-bit ADC. This 256-fold increase in codes per volt allows measurement of signals down to sub-microvolt steps from a 2.75 V reference, critical in precision weigh-scale and thermocouple applications requiring less than 0.001% full-scale error.
How many analog input channels does LTC2444IUHF support and can they be used as differential pairs?
LTC2444IUHF integrates 8 analog input channels configurable as 8 single-ended inputs within the -0.05 V to 2.75 V range, or as 4 fully differential input pairs, allowing simultaneous connection of multiple bridge sensors, thermocouples, or voltage dividers in a single 38-pin QFN without external multiplexers.
What maximum conversion time does LTC2444IUHF support and how does choosing a longer conversion time affect noise performance?
Maximum conversion time is 170,000 µs; selecting longer conversion times engages higher-order digital filtering that attenuates 50 Hz and 60 Hz power-line interference by over 100 dB, making LTC2444IUHF well suited for industrial process monitoring in environments where EMI from motors and switching converters would otherwise corrupt 24-bit readings.
For a precision bridge measurement system, what linearity specification does LTC2444IUHF guarantee and how does that translate to weight accuracy?
LTC2444IUHF specifies a maximum linearity error of 0.0015%, equivalent to approximately 250 counts of error over the full 24-bit range. In a 10 kg weigh-scale with 1 g resolution, this corresponds to a maximum linearity-induced weight error below 0.15 g across the full measurement range, meeting class III legal-for-trade weighing requirements.
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Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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