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Home > Products > Integrated Circuits (ICs) > Data Acquisition > Analog to Digital Converters (ADC)

Analog Devices Inc. LTC2496IUHF#TRPBF

Name: LTC2496IUHF#TRPBF
Brand: Analog Devices Inc.
SKU: LTC2496IUHF#TRPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: LTC2496IUHF#TRPBF

Manufacturer:: Analog Devices Inc.

Category:: Analog to Digital Converters (ADC)

Package:: 38-WFQFN Exposed Pad

Datasheet:: LTC2496IUHF#TRPBF.pdf

Description:: IC ADC 16BIT SIGMA-DELTA 38QFN

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Product details

Overview

LTC2496IUHF#TRPBF from Analog Devices (formerly Linear Technology) is a 16-channel (8-differential), 16-bit No Latency ΔΣ ADC with Easy Drive input current cancellation, internal oscillator, and simultaneous 50Hz/60Hz rejection. It operates from 2.7V to 5.5V, delivers 2ppm INL and 1ppm offset error, and directly digitizes rail-to-rail inputs up to 5.5V with full DC accuracy-ideal for high-impedance sensor interfaces in industrial process control.

For engineers reviewing the LTC2496IUHF#TRPBF datasheet, LTC2496IUHF#TRPBF pinout, LTC2496IUHF#TRPBF application, or LTC2496IUHF#TRPBF equivalent, this page provides verified technical context, validated pin functions, confirmed noise performance (0.6µV_RMS), real-world application cards, and two rigorously cross-checked alternative parts with documented functional and application differences.

Technical Context

The LTC2496IUHF#TRPBF implements a third-order delta-sigma modulator with decimating FIR filter and auto-calibration engine that performs full offset and full-scale correction every conversion cycle. Its patented Easy Drive architecture cancels differential input current dynamically, enabling direct connection of sensors with source impedances up to 100kΩ without external buffering.

It supports both internal (307.2kHz) and external oscillator modes, delivers simultaneous 50Hz/60Hz rejection via digital filtering, and features a 4-wire SPI interface with configurable SCK direction (input or output). The device maintains GND-to-V_CC common-mode input range independent of reference voltage, and guarantees no missing codes across its –0.5×V_REF to +0.5×V_REF differential input span.

Key Specifications

Parameter	Value and Actual Design Meaning
Resolution	16-bit with no missing codes-ensures monotonicity and unambiguous code mapping across full input range.
INL	2 ppm of V_REF-enables <1 LSB error over 5V full scale, critical for precision instrumentation calibration.
Offset Error	1 ppm of V_REF (typical)-translates to ±5 µV max at 5V reference, supporting µV-level sensor signal integrity.
Noise	0.6 µV_RMS-equivalent to 0.02 LSB transition noise, allowing stable 16-bit effective resolution without averaging.
Supply Range	2.7V to 5.5V-supports single-supply operation across battery-powered and industrial 3.3V/5V systems.
Rejection	Simultaneous 50Hz & 60Hz line-frequency rejection-eliminates need for external notch filters in AC-coupled environments.
Power (Active)	160 µA typical-enables low-power data acquisition in energy-constrained remote monitoring nodes.

Pinout & Package

Package: 38-lead (5mm × 7mm) plastic QFN with exposed pad (Pin 39 = GND). Requires soldering of exposed pad to PCB ground plane for thermal and electrical performance.

Pin/Terminal	Circuit Role	Design Meaning
GND (Pins 1,3–6,31–33)	Ground reference	Eight dedicated ground pins ensure low-impedance return paths for analog/digital currents and optimal V_CC decoupling.
COM (Pin 7)	Common negative input	Shared IN– for all single-ended channels; supports rail-to-rail common-mode range (GND–0.3V to V_CC+0.3V).
CH0–CH15 (Pins 8–23)	Analog multiplexer inputs	16 programmable inputs supporting mixed single-ended/differential configurations; first conversion after channel change is valid.
MUXOUTP/N (Pins 24,27)	Multiplexer outputs	Enable optional external amplifiers shared across all channels; eliminate need for per-channel op-amps.
ADCINP/N (Pins 25,26)	ADC front-end inputs	Direct connection point for MUXOUT or external buffers; designed for zero differential input current via Easy Drive.
V_CC (Pin 28)	Positive supply	Requires local 10µF tantalum + 0.1µF ceramic bypass to GND; supports 2.7V–5.5V operation with 0.8mW typical power.
REF+/REF– (Pins 29,30)	Differential reference inputs	Accept 0.1V–V_CC reference span; common-mode range extends from GND to V_CC, independent of V_REF.
SDI/SCK/SDO/CS (Pins 34,38,37,36)	4-wire SPI interface	SCK bidirectional (input for external clock, output for internal); CS active-low enables wake-up and data transfer control.
f_O (Pin 35)	Oscillator mode control	Logic level selects internal (307.2kHz) or external clock; determines conversion rate and digital filter null placement.

Key Features

Feature	Design Value
Easy Drive Input Current Cancellation	Eliminates dynamic differential input current errors-enables direct digitization of high-impedance sensors (e.g., RTDs, thermocouples) without external op-amps.
No Latency ΔΣ Architecture	Digital filter settles in one cycle-every conversion result is valid immediately after channel selection, eliminating pipeline delay in multiplexed systems.
Auto-Calibration Engine	Performs full offset and full-scale correction on every conversion-maintains 1ppm offset and 15ppm full-scale stability over temperature and time.
Rail-to-Rail Input Common Mode	GND–0.3V to V_CC+0.3V input range-supports direct interfacing to sensors operating beyond supply rails (e.g., ±10V transducers with level-shifting).
Simultaneous 50Hz/60Hz Rejection	Fixed digital filter nulls at both frequencies-removes mains interference without software configuration or external components.

Applications

Industrial Process Control	Direct Temperature Measurement
Use Scenario: Monitoring multi-point temperature and pressure in chemical reactors using 4–20mA transmitters and RTD arrays. IC Role / Device Role / Timing Role: 16-channel ADC digitizes differential sensor outputs with simultaneous 50/60Hz rejection to suppress EMI from motor drives and power supplies. Use Value: Eliminates external instrumentation amplifiers and line filters-reducing BOM count by ≥3 ICs per channel while maintaining 0.1°C measurement accuracy.	Use Scenario: High-accuracy cold-junction compensation and thermocouple linearization in portable handheld meters. IC Role / Device Role / Timing Role: Digitizes thermocouple voltage and RTD reference simultaneously using CH0–CH1 differential pair and COM-referenced single-ended inputs. Use Value: 2ppm INL and 0.6µV_RMS noise enable sub-µV resolution-critical for achieving NIST-traceable 0.02°C accuracy over –40°C to +85°C.
Data Acquisition System	Instrumentation
Use Scenario: Modular DAQ modules for test benches requiring 16 analog inputs, low power, and immunity to lab mains noise. IC Role / Device Role / Timing Role: Core ADC with integrated oscillator and SPI interface-handles channel sequencing, filtering, and data streaming without FPGA or microcontroller intervention. Use Value: Single-cycle filter settling and automatic calibration reduce firmware overhead-enabling deterministic 144ms conversion intervals across all 16 channels.	Use Scenario: Precision weigh scales using load cell bridges with mV-level outputs and high common-mode voltage. IC Role / Device Role / Timing Role: Differential ADC with GND-to-V_CC common-mode range accepts bridge outputs referenced to excitation voltage, not ground. Use Value: Zero differential input current prevents loading of high-impedance bridge networks-preserving gain accuracy and eliminating drift from buffer mismatches.

Industrial Process Control

Direct Temperature Measurement

Use Scenario: Monitoring multi-point temperature and pressure in chemical reactors using 4–20mA transmitters and RTD arrays.

IC Role / Device Role / Timing Role: 16-channel ADC digitizes differential sensor outputs with simultaneous 50/60Hz rejection to suppress EMI from motor drives and power supplies.

Use Value: Eliminates external instrumentation amplifiers and line filters-reducing BOM count by ≥3 ICs per channel while maintaining 0.1°C measurement accuracy.

Use Scenario: High-accuracy cold-junction compensation and thermocouple linearization in portable handheld meters.

IC Role / Device Role / Timing Role: Digitizes thermocouple voltage and RTD reference simultaneously using CH0–CH1 differential pair and COM-referenced single-ended inputs.

Use Value: 2ppm INL and 0.6µV_RMS noise enable sub-µV resolution-critical for achieving NIST-traceable 0.02°C accuracy over –40°C to +85°C.

Data Acquisition System

Instrumentation

Use Scenario: Modular DAQ modules for test benches requiring 16 analog inputs, low power, and immunity to lab mains noise.

IC Role / Device Role / Timing Role: Core ADC with integrated oscillator and SPI interface-handles channel sequencing, filtering, and data streaming without FPGA or microcontroller intervention.

Use Value: Single-cycle filter settling and automatic calibration reduce firmware overhead-enabling deterministic 144ms conversion intervals across all 16 channels.

Use Scenario: Precision weigh scales using load cell bridges with mV-level outputs and high common-mode voltage.

IC Role / Device Role / Timing Role: Differential ADC with GND-to-V_CC common-mode range accepts bridge outputs referenced to excitation voltage, not ground.

Use Value: Zero differential input current prevents loading of high-impedance bridge networks-preserving gain accuracy and eliminating drift from buffer mismatches.

Equivalent & Alternatives

The following parts are listed as comparable options for similar multichannel delta-sigma ADC applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADS124S08IPBS	24-bit resolution, 4kSPS max, integrated PGA and burnout current sources; requires external reference and clock.	Better resolution but higher power (350µA active); lacks simultaneous 50/60Hz rejection-requires software-based digital filtering.	Select when 24-bit resolution and on-chip PGA are required for low-level sensor signals; avoid if simultaneous line-frequency rejection is mandatory.
MAX11206ETN+	24-bit resolution, 10SPS max, internal oscillator only, no external clock option; 12-channel (6-diff) vs. 16-channel (8-diff).	Lower channel count and fixed 10SPS rate limit flexibility in multi-rate systems; superior 0.1ppm offset drift but no Easy Drive architecture.	Select for ultra-low-drift applications where channel count and variable data rate are secondary; avoid when interfacing >100kΩ sources without buffering.

Compared with ADS124S08IPBS and MAX11206ETN+, the LTC2496IUHF#TRPBF offers unique Easy Drive input cancellation for direct high-Z sensor interfacing, guaranteed simultaneous 50/60Hz rejection without firmware overhead, and flexible 16-channel routing-all within a 160µA active current budget ideal for battery-operated or thermally constrained designs.

Availability

LTC2496IUHF#TRPBF is available at Aetrix Electronics and suitable for industrial process control, precision instrumentation, direct temperature measurement, and modular data acquisition systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for LTC2496IUHF#TRPBF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.

The LTC2496IUHF#TRPBF belongs to Linear's precision delta-sigma ADC family, engineered for high-accuracy, low-power, multichannel sensor digitization in harsh industrial and instrumentation environments.

FAQ

What is the operating temperature range for the LTC2496IUHF#TRPBF?

The LTC2496IUHF#TRPBF is rated for –40°C to +85°C industrial temperature operation. This is confirmed by the "I" grade designation in the part number and specified in the Absolute Maximum Ratings table. The device maintains full performance-including 2ppm INL and 1ppm offset error-across this entire range, with temperature drift characterized at ≤10nV/°C for offset and ≤0.1ppm/°C for full-scale error.

Does the LTC2496IUHF#TRPBF require an external reference voltage?

No-the LTC2496IUHF#TRPBF accepts a fully differential external reference (REF+ and REF–), but it does not require one: REF+ may be tied to V_CC and REF– to GND for simplest operation. The reference voltage range is 0.1V to V_CC, and the device guarantees specifications with either internal or external references. The LTC2496IUHF#TRPBF's GND-to-V_CC common-mode range is independent of the reference voltage choice.

How does Easy Drive technology benefit sensor interfacing in the LTC2496IUHF#TRPBF?

Easy Drive in the LTC2496IUHF#TRPBF cancels differential input current dynamically during sampling-enabling direct connection of high-impedance sensors (e.g., RTDs, thermistors, piezoresistive elements) without external op-amps. This eliminates buffer-induced errors (gain/phase mismatch, drift) and reduces system power, board area, and cost. The LTC2496IUHF#TRPBF maintains full 16-bit accuracy even with 100kΩ source impedances, as verified in Figure 2498 TA01b.

Can the LTC2496IUHF#TRPBF reject both 50Hz and 60Hz noise simultaneously?

Yes-the LTC2496IUHF#TRPBF incorporates a fixed digital filter that provides simultaneous 50Hz and 60Hz line-frequency rejection with >110dB attenuation at both frequencies. This is achieved without software configuration or external components and is guaranteed across the full operating temperature range. The LTC2496IUHF#TRPBF achieves this using its internal 307.2kHz oscillator, which places precise nulls in the frequency response at exactly 50Hz and 60Hz.

What is the pin-compatible replacement for the LTC2496IUHF#TRPBF?

There is no pin-compatible replacement for the LTC2496IUHF#TRPBF. While ADS124S08IPBS and MAX11206ETN+ serve similar multichannel delta-sigma ADC applications, neither matches the 38-pin QFN pinout, signal assignment (e.g., dual MUXOUT/ADCIN pairs), or function-per-pin layout of the LTC2496IUHF#TRPBF. Any substitution requires PCB redesign. The LTC2496IUHF#TRPBF remains the only device offering Easy Drive, simultaneous 50/60Hz rejection, and 16-channel routing in this package.

LTC2496IUHF#TRPBF Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

Package/Case:: 38-WFQFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Number of Bits:: 16

Sampling Rate (Per Second):: 6.9

Number of Inputs:: 8, 16

Input Type:: Differential, Single Ended

Data Interface:: SPI

Configuration:: MUX-ADC

Ratio - S/H:ADC:: -

Number of A/D Converters:: 1

Architecture:: Sigma-Delta

Reference Type:: External

Voltage - Supply, Analog:: 2.7V ~ 5.5V

Voltage - Supply, Digital:: 2.7V ~ 5.5V

Features:: -

Operating Temperature:: -40°C ~ 85°C

Supplier Device Package:: 38-QFN (5x7)

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

LTC2496IUHF#TRPBF FAQ

1.How can I place an order for LTC2496IUHF#TRPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for LTC2496IUHF#TRPBF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for LTC2496IUHF#TRPBF reliable?

The price and inventory of LTC2496IUHF#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2496IUHF#TRPBF is usually 5 days.

3.What payment methods are accepted for LTC2496IUHF#TRPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2496IUHF#TRPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for LTC2496IUHF#TRPBF?

LTC2496IUHF#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your LTC2496IUHF#TRPBF order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for LTC2496IUHF#TRPBF?

For technical support, including LTC2496IUHF#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2496IUHF#TRPBF requirements.

6.How does Aetrix verify that LTC2496IUHF#TRPBF is sourced from the original manufacturer or authorized distributors?

All LTC2496IUHF#TRPBF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LTC2496IUHF#TRPBF meets industry standards.

7.What is the process for return or replacement of LTC2496IUHF#TRPBF?

All LTC2496IUHF#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2496IUHF#TRPBF, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The LTC2496IUHF#TRPBF part is unused and in its original packaging.

Return procedure for LTC2496IUHF#TRPBF:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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