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Analog Devices Inc. LTC2411CMS#TRPBF
- Part No.:
- LTC2411CMS#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2411CMS#TRPBF.pdf
- Description:
- IC ADC 24BIT SIGMA-DELTA 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,313
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Product details
Overview
LTC2411CMS#TRPBF from Analog Devices (formerly Linear Technology) is a 24-bit micropower delta-sigma analog-to-digital converter with differential input and reference, integrated oscillator, 2 ppm INL, 0.29 ppm RMS noise, and single-cycle settling. It operates from 2.7V to 5.5V and delivers 110 dB 50/60 Hz notch rejection in pin-selectable mode-ideal for precision weigh scales and strain gauge transducers.
For engineers reviewing the LTC2411CMS#TRPBF datasheet, LTC2411CMS#TRPBF pinout, LTC2411CMS#TRPBF application, or LTC2411CMS#TRPBF equivalent, key selection criteria include its no-latency ∆Σ architecture, GND-to-VCC common-mode input/reference flexibility, MSOP-10 package compatibility, and differential 3-wire SPI interface supporting both internal and external clock modes.
Technical Context
The LTC2411CMS#TRPBF implements a decimating FIR-based ∆Σ modulator with auto-calibrating offset and full-scale correction per conversion cycle. Its digital filter provides first-null rejection at 50 Hz (FO = VCC), 60 Hz (FO = GND), or user-defined frequencies via external oscillator (fEOSC/2560).
It supports two serial interface timing modes: internal SCK output (SCK pin driven by ADC) and external SCK input (SCK pin clocked by host), selected automatically at power-up or CS falling edge. The 32-bit output includes sign, 24-bit data, and status bits, with no latency between conversion completion and data availability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 24-bit with no missing codes-guarantees monotonicity and full dynamic range utilization in high-precision measurement. |
| INL | 2 ppm max over temperature-enables 6½-digit DVM accuracy without system-level calibration. |
| RMS Noise | 0.29 ppm of VREF (1.45 µVRMS at 5V ref)-supports sub-microvolt signal resolution in low-noise sensor interfaces. |
| Common-Mode Rejection | >140 dB DC-allows independent setting of VINCM and VREFCM across full GND–VCC range for remote sensing. |
| Supply Current | 200 µA in conversion mode, 4 µA in autosleep-enables battery-powered instrumentation with multi-year runtime. |
| Reference Range | 0.1 V to VCC differential-permits ratiometric measurements with any stable voltage source, including bridge excitation rails. |
| Notch Rejection | 110 dB min at 50/60 Hz ±2% (LTC2411 variant)-eliminates mains interference without external filtering components. |
Pinout & Package
Package: 10-lead plastic MSOP (MS10), 3 mm × 3 mm, 0.5 mm pitch, exposed pad (not electrically connected). Thermal resistance θJA = 120°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (1) | Positive supply input | 2.7V–5.5V operation; requires local 10 µF tantalum + 0.1 µF ceramic bypass to GND for noise immunity. |
| REF+ (2), REF– (3) | Differential reference inputs | Accept 0.1V–VCC differential range; common-mode voltages independently set from GND to VCC. |
| IN+ (4), IN– (5) | Differential analog inputs | Full-scale range = ±0.5×VREF; input common-mode range extends beyond supply rails (GND−0.3V to VCC+0.3V). |
| GND (6) | Analog/digital ground | Low-impedance connection to ground plane required; shared return for reference and analog inputs. |
| CS (7) | Active-low chip select | Wakes ADC from sleep; initiates data output; HIGH = autosleep (4 µA); LOW = active conversion/data transfer. |
| SDO (8) | Three-state serial data output | Outputs 32-bit result (sign + 24-bit data + status); high-Z when CS = HIGH; status indicator during conversion/sleep. |
| SCK (9) | Bidirectional serial clock | Auto-configured as output (internal clock mode) or input (external clock mode) based on power-up state or CS edge. |
| FO (10) | Frequency control input | Selects internal notch: FO = VCC → 50 Hz, FO = GND → 60 Hz; external fEOSC enables custom rejection at fEOSC/2560. |
Key Features
| Feature | Design Value |
|---|---|
| No-latency ∆Σ conversion | Single-cycle digital filter settling ensures every output corresponds precisely to the most recent analog input step-critical for multiplexed sensor arrays. |
| Per-conversion auto-calibration | Continuous offset and full-scale correction eliminates drift-induced errors over time, temperature, and supply variation-no manual recalibration needed. |
| Flexible common-mode configuration | VINCM and VREFCM independently adjustable from GND to VCC enables direct digitization of floating bridges and isolated sensors without level-shifting circuitry. |
| Integrated oscillator | Eliminates external crystal or clock generator; supports precise 50/60 Hz rejection without frequency-setting components or layout sensitivity. |
| 3-wire SPI/MICROWIRE interface | Minimal GPIO usage; compatible with standard microcontroller peripherals; no configuration registers or firmware overhead required. |
Applications
| Strain Gauge Transducers | Weight Scales |
|---|---|
Use Scenario: High-accuracy load cell readout in industrial weighing systems with 1000:1+ dynamic range and ambient 50/60 Hz noise. IC Role / Device Role / Timing Role: Direct digitizer of mV-level bridge outputs; performs ratiometric measurement using excitation voltage as reference. Use Value: 24-bit resolution and 110 dB line-frequency rejection enable <10 ppm repeatability without external notch filters or synchronous sampling. | Use Scenario: Battery-powered portable scale with >100,000-count display and multi-year shelf life. IC Role / Device Role / Timing Role: Low-power ADC core with autosleep mode activated between weigh events; wakes on button press or load detection. Use Value: 4 µA sleep current extends CR2032 battery life beyond 5 years; integrated calibration maintains accuracy across temperature swings. |
| Direct Temperature Measurement | Gas Analyzers |
Use Scenario: Precision RTD or thermistor readout in environmental monitoring nodes where self-heating must be minimized. IC Role / Device Role / Timing Role: Low-current excitation source (via reference path) combined with differential measurement to reject lead resistance and EMI. Use Value: GND-to-VCC common-mode range allows direct connection to 2-/3-/4-wire RTDs; 0.29 ppm RMS noise resolves <0.01°C changes in Pt1000 configurations. | Use Scenario: Electrochemical gas sensor signal conditioning requiring ultra-low drift and high CMRR in corrosive industrial settings. IC Role / Device Role / Timing Role: Front-end digitizer for nA-level current outputs; rejects common-mode interference from pump drivers and solenoid switching. Use Value: >140 dB DC common-mode rejection suppresses ground-loop errors; per-cycle calibration maintains baseline stability over months of continuous operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 24-bit delta-sigma ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS124S08IPWR | 24-bit, 4-kSPS, integrated PGA and burnout current sources; requires external reference; no built-in 50/60 Hz notch. | Better suited for multi-channel sensor arrays with programmable gain; lacks autonomous line-frequency rejection. | Choose ADS124S08IPWR when PGA flexibility and channel count outweigh need for embedded notch filtering. |
| MAX11206ETN+ | 24-bit, 10 SPS, internal oscillator, 105 dB 50/60 Hz rejection; 12-lead TDFN; lower supply current (180 µA conv / 1.5 µA sleep). | Optimized for ultra-low-power portable instruments; slightly lower INL (5 ppm) and noise (0.4 ppm). | Choose MAX11206ETN+ when minimum sleep current and smaller footprint are prioritized over maximum noise performance. |
Compared with ADS124S08IPWR and MAX11206ETN+, the LTC2411CMS#TRPBF delivers superior 110 dB line-frequency rejection and 2 ppm INL in an industry-standard MSOP-10, making it optimal for fixed-function, high-stability weigh scale and transducer applications where external filtering and calibration are undesirable.
Availability
LTC2411CMS#TRPBF is available at Aetrix Electronics and suitable for precision instrumentation, industrial process control, and battery-powered measurement systems requiring stable component supply, long-term calibration integrity, and robust 50/60 Hz interference immunity.
Supply support for LTC2411CMS#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 acquired Linear Technology in 2017 and maintains its precision analog portfolio, renowned for high-performance data converters, amplifiers, and power management ICs targeting demanding industrial and instrumentation applications.
The LTC2411CMS#TRPBF belongs to Linear's No Latency ∆Σ ADC family, designed specifically for high-resolution, low-drift, mains-immune digitization of slow-varying sensor signals-emphasizing ease of use, minimal external components, and guaranteed monotonicity.
FAQ
What is the operating temperature range for the LTC2411CMS#TRPBF?
The LTC2411CMS#TRPBF is specified for 0°C to 70°C ambient operation (Commercial grade). This is confirmed by the "CMS" suffix in the part number and the order information table, which lists "LTC2411CMS#TRPBF" under the 0°C to 70°C temperature range column. The device meets all electrical specifications-including 2 ppm INL and 110 dB 50/60 Hz rejection-across this full range.
Does the LTC2411CMS#TRPBF require external passive components for its internal oscillator?
No, the LTC2411CMS#TRPBF does not require external passive components for its internal oscillator. As stated in the Features section, it includes an "Internal Oscillator-No External Components Required." The oscillator is fully integrated and enables precise 50 Hz or 60 Hz notch filtering depending on the FO pin logic level, eliminating crystals, capacitors, or resistors traditionally needed for frequency stabilization.
How does the LTC2411CMS#TRPBF achieve 110 dB 50/60 Hz rejection without external filtering?
The LTC2411CMS#TRPBF achieves 110 dB 50/60 Hz rejection through its on-chip decimating FIR digital filter, clocked by a highly accurate internal oscillator. When FO = VCC, the filter's first null is placed exactly at 50 Hz; when FO = GND, it shifts to 60 Hz. This architecture rejects mains interference digitally-without analog RC networks or synchronous sampling-ensuring consistent performance across unit-to-unit and temperature variations.
Can the LTC2411CMS#TRPBF interface directly with a 3.3V microcontroller SPI port?
Yes, the LTC2411CMS#TRPBF can interface directly with a 3.3V microcontroller SPI port. Its digital inputs (CS, FO, SCK) accept VIH ≥ 2.0 V and VIL ≤ 0.6 V at VCC = 3.3V, and its SDO output drives VOH ≥ VCC – 0.5 V and VOL ≤ 0.4 V-fully compatible with standard 3.3V logic levels. No level-shifting circuitry is required for interoperability.
What is the purpose of the FO pin on the LTC2411CMS#TRPBF?
The FO (Frequency Control) pin on the LTC2411CMS#TRPBF selects the digital filter's notch frequency: FO = VCC configures 50 Hz rejection, FO = GND configures 60 Hz rejection, and an external clock applied to FO sets rejection at fEOSC/2560. This pin enables seamless adaptation to regional mains standards or custom interference frequencies without changing firmware or external components.
LTC2411CMS#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- microPOWER™
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 24
- Sampling Rate (Per Second):
- 7.5
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- SPI
- Configuration:
- 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:
- 0°C ~ 70°C
- Supplier Device Package:
- 10-MSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2411CMS#TRPBF FAQ
1.How can I place an order for LTC2411CMS#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2411CMS#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 LTC2411CMS#TRPBF reliable?
The price and inventory of LTC2411CMS#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2411CMS#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2411CMS#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2411CMS#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2411CMS#TRPBF?
LTC2411CMS#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2411CMS#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 LTC2411CMS#TRPBF?
For technical support, including LTC2411CMS#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2411CMS#TRPBF requirements.
6.How does Aetrix verify that LTC2411CMS#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2411CMS#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 LTC2411CMS#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2411CMS#TRPBF?
All LTC2411CMS#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2411CMS#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 LTC2411CMS#TRPBF part is unused and in its original packaging.
Return procedure for LTC2411CMS#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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