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Analog Devices Inc. LTC2460CMS#TRPBF
- Part No.:
- LTC2460CMS#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 12-TSSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2460CMS#TRPBF.pdf
- Description:
- IC ADC 16BIT SIGMA-DELTA 12MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,834
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Product details
Overview
LTC2460CMS#TRPBF from Analog Devices (formerly Linear Technology) is a single-ended, 16-bit delta-sigma ADC with integrated 1.25V precision reference, SPI interface, and ultra-low 2µA sleep current. It operates from 2.7V to 5.5V, delivers 60 conversions per second, and achieves ±2 LSB offset error and ±0.01% gain error - enabling high-accuracy sensor digitization in space-constrained industrial monitoring systems.
For engineers reviewing the LTC2460CMS#TRPBF datasheet, LTC2460CMS#TRPBF pinout, LTC2460CMS#TRPBF application, or LTC2460CMS#TRPBF equivalent, key selection considerations include its single-ended input architecture, MSOP-12 package compatibility, guaranteed no missing codes, internal oscillator eliminating external timing components, and 10ppm/°C max reference drift over temperature.
Technical Context
The LTC2460CMS#TRPBF implements a proprietary delta-sigma architecture with continuous internal offset and full-scale calibration, ensuring accuracy stability across temperature and time without user intervention. Its input sampling scheme reduces average input current to 50nA, enabling direct RC filter interfacing with <1 LSB error using 1kΩ/0.1µF networks.
It operates in three deterministic states - CONVERT (16.6 ms typical), SLEEP/NAP, and DATA INPUT/OUTPUT - with automatic power-down after conversion. Reference startup time is 12ms when COMP and REFOUT capacitors are both 0.1µF, and the device supports both CPOL = 0 and CPOL = 1 SPI modes with no latency data output synchronized to SCK falling edges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with no missing codes - guarantees monotonicity and full code coverage for precision measurement applications. |
| Reference Voltage | 1.25V ±3mV (1.247V–1.253V) - sets 0V to VREF input range; enables direct single-ended sensor interfacing without external reference. |
| Offset Error | ±2 LSB maximum - translates to ≤76.3µV error at 1.25V reference, critical for zero-scale accuracy in load cell or thermistor readings. |
| Gain Error | ±0.01% of full scale - contributes ≤125µV absolute error, supporting sub-0.1% system-level accuracy requirements. |
| Supply Current | 1.5mA during conversion, 2µA in sleep mode - enables battery-powered operation with >10-year runtime on coin cells in periodic-sampling designs. |
| Conversion Rate | 60 conversions per second - provides sufficient bandwidth for slow-varying physical parameters (e.g., temperature, pressure, humidity) without oversampling complexity. |
| Reference Drift | ±10 ppm/°C max (I-grade), ±2 ppm/°C typ - ensures ≤12.5µV/°C reference voltage shift, minimizing temperature-induced gain error in uncalibrated systems. |
Pinout & Package
Package: 12-lead plastic MSOP (3mm × 3mm), exposed pad optional for thermal enhancement. Pin 13 (exposed pad) is ground in DFN variants only; not present in MSOP.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| REFOUT (Pin 1) | Reference output | Nominally 1.25V; sets full-scale input range; requires 0.1µF capacitor to GND for noise suppression and stability. |
| COMP (Pin 2) | Reference compensation | Stabilizes internal reference; must connect 0.1µF capacitor to GND - value must be ≥ REFOUT capacitor. |
| CS (Pin 3) | Chip select (active low) | Enables SDO output and initiates DATA INPUT/OUTPUT state; HIGH places SDO in high-Z and ignores SDI/SCK. |
| SDI (Pin 4) | Serial data input | 4-bit programming interface for SPD (output rate) and SLP (reference sleep); tied to GND/VCC for simplified configuration. |
| SCK (Pin 5) | Serial clock input | Controls data timing; supports CPOL = 0 or 1; falling edge clocks out data on SDO, rising edge latches SDI. |
| SDO (Pin 6) | Serial data output | 3-state output delivering 16-bit result MSB-first; reflects last completed conversion with zero latency. |
| GND (Pins 7, 11) | Analog/digital ground | Low-impedance ground connection points; must tie directly to PCB ground plane for noise immunity. |
| REF– (Pin 8) | Negative reference input | Sets zero-input level; typically connected to system ground or remote sensor ground sense point. |
| IN (Pin 9) | Single-ended analog input | Input for LTC2460 variant; accepts 0V to VREF (0–1.25V); clamped at 0 and 65535 for under/over-range conditions. |
| GND (Pin 10) | Input return / ground | Dedicated ground return for IN pin; separates analog input path from digital ground currents. |
| VCC (Pin 12) | Positive supply | 2.7V–5.5V operation; requires 10µF + 0.1µF parallel bypassing close to pin for stable conversion performance. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 1.25V reference | 2ppm/°C typical drift and 0.1% initial accuracy eliminate need for external precision reference and reduce BOM count. |
| No-latency serial output | Data corresponds exactly to last completed conversion - enables deterministic multiplexed sampling without pipeline delay or buffer management. |
| Auto-calibrating architecture | Continuous internal offset and full-scale calibration runs transparently every conversion, maintaining accuracy over temperature and aging without host intervention. |
| Ultra-low input sampling current | 50nA average draw allows direct connection to RC filters (e.g., 1kΩ/0.1µF) with <1 LSB error - simplifies anti-aliasing design and improves SNR. |
| Single-cycle operation with auto shutdown | Enters NAP mode automatically post-conversion; optional SLEEP mode reduces total supply current to 200nA with reference powered down. |
Applications
| Environmental Monitoring | Industrial Process Control |
|---|---|
Use Scenario: Measuring temperature, humidity, and gas concentration in HVAC or agricultural sensor nodes. IC Role / Device Role / Timing Role: Single-ended ADC digitizing conditioned analog outputs from thermistors, RTDs, and electrochemical sensors. Use Value: Integrated 1.25V reference and 16-bit resolution enable ±0.1°C temperature accuracy without calibration; 2µA sleep current extends battery life to multi-year intervals. |
Use Scenario: Monitoring tank level, flow rate, and pressure in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Precision front-end ADC for 4–20mA loop receivers and strain-gauge signal conditioning. Use Value: ±2 LSB offset error and ±0.01% gain error ensure compliance with IEC 61000-4-5 surge immunity requirements while maintaining <0.05% total unadjusted error. |
| Direct Temperature Measurements | Embedded ADC Upgrades |
Use Scenario: Cold-junction compensation and thermocouple digitization in portable test equipment. IC Role / Device Role / Timing Role: High-accuracy, low-drift ADC capturing millivolt-level thermocouple outputs referenced to local temperature. Use Value: 10ppm/°C max reference drift minimizes cold-junction compensation error; 50nA input current prevents self-heating in high-impedance thermocouple circuits. |
Use Scenario: Replacing legacy 12-bit SAR ADCs in existing embedded systems requiring higher resolution without layout changes. IC Role / Device Role / Timing Role: Pin-compatible upgrade path offering 16-bit performance with identical MSOP-12 footprint and SPI interface. Use Value: Same package and software interface as predecessor parts - enables resolution upgrade with zero PCB revision and minimal firmware modification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS1115IDGSR | 16-bit delta-sigma ADC with programmable gain amplifier (PGA), I²C interface, and 4-channel input multiplexer - lacks integrated reference; requires external 2.048V reference. | Supports differential and single-ended measurements across four inputs; better suited for multi-sensor systems but adds reference and PGA complexity. | Select ADS1115IDGSR when multi-channel acquisition or programmable gain is required; LTC2460CMS#TRPBF preferred for single-input, reference-integrated, SPI-based simplicity. |
| LTC2450CMS#TRPBF | 16-bit delta-sigma ADC with same MSOP-12 package and SPI interface, but supports 0–2.5V input range via external reference; no internal reference - requires external 2.5V reference. | Designed for wider input ranges; used where 0–2.5V or rail-to-rail sensing is needed; lacks internal reference, increasing component count. | Choose LTC2450CMS#TRPBF when input signals exceed 1.25V; LTC2460CMS#TRPBF is optimal for 0–1.25V single-ended applications with minimal BOM. |
Compared with ADS1115IDGSR and LTC2450CMS#TRPBF, the LTC2460CMS#TRPBF uniquely combines integrated 1.25V reference, single-ended 0–1.25V input, and ultra-low 2µA sleep current in an MSOP-12 package - making it the most compact, lowest-power solution for dedicated single-sensor precision digitization.
Availability
LTC2460CMS#TRPBF is available at Aetrix Electronics and suitable for industrial process control, environmental monitoring, and embedded ADC upgrades requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for LTC2460CMS#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. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC2460CMS#TRPBF belongs to ADI's ultra-low-power precision delta-sigma ADC product line, designed specifically for battery-operated and space-constrained instrumentation where integrated reference, minimal external components, and guaranteed no-missing-codes performance are essential.
FAQ
What is the operating temperature range for the LTC2460CMS#TRPBF?
The LTC2460CMS#TRPBF is rated for 0°C to 70°C (C-grade). This is confirmed by the order information table listing "LTC2460CMS#TRPBF" with temperature range "0°C to 70°C" and marking code "2460". The MSOP-12 package variant does not support extended industrial temperature grades - those are designated by "I" prefix (e.g., LTC2460IMS#TRPBF).
Does the LTC2460CMS#TRPBF require an external crystal or oscillator?
No, the LTC2460CMS#TRPBF includes an integrated oscillator and requires no external timing components. This is explicitly stated in the Features list ("Internal Oscillator-No External Components Required") and confirmed in the Applications Information section, which notes the device "includes an integrated oscillator and performs conversions with no latency for multiplexed applications".
How does the LTC2460CMS#TRPBF handle input overrange and underrange conditions?
The LTC2460CMS#TRPBF clamps output codes at digital extremes: input voltages below 0V produce code 0 (all zeros), and inputs above VREF (1.25V) produce code 65535 (all ones). This behavior is documented in the "Input Voltage Range (LTC2460)" section and verified in Table 1, which shows saturation at both ends of the transfer function.
Can the LTC2460CMS#TRPBF be used in differential input configurations?
No - the LTC2460CMS#TRPBF is strictly single-ended. Its datasheet clearly distinguishes it from the LTC2462 (differential variant), stating "the LTC2460 is single-ended with a 0V to VREF input range" and assigning Pin 9 as "IN" and Pin 10 as "GND". Differential operation is exclusive to the LTC2462 family members.
What is the minimum and maximum SCK frequency supported by the LTC2460CMS#TRPBF?
The LTC2460CMS#TRPBF supports an SCK frequency range of 2MHz maximum, with no specified minimum - operation is functional down to DC (0Hz) as confirmed by timing parameter fSCK (SCK Frequency Range) listing "2 MHz" under MAX and no MIN entry. This allows flexible microcontroller clocking, including very slow bit-banged interfaces.
LTC2460CMS#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 12-TSSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 60
- Number of Inputs:
- 1
- Input Type:
- Single Ended
- Data Interface:
- SPI
- Configuration:
- ADC
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 1
- Architecture:
- Sigma-Delta
- Reference Type:
- Internal
- Voltage - Supply, Analog:
- 2.7V ~ 5.5V
- Voltage - Supply, Digital:
- 2.7V ~ 5.5V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 12-MSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2460CMS#TRPBF FAQ
1.How can I place an order for LTC2460CMS#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2460CMS#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 LTC2460CMS#TRPBF reliable?
The price and inventory of LTC2460CMS#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2460CMS#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2460CMS#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2460CMS#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2460CMS#TRPBF?
LTC2460CMS#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2460CMS#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 LTC2460CMS#TRPBF?
For technical support, including LTC2460CMS#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2460CMS#TRPBF requirements.
6.How does Aetrix verify that LTC2460CMS#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2460CMS#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 LTC2460CMS#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2460CMS#TRPBF?
All LTC2460CMS#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2460CMS#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 LTC2460CMS#TRPBF part is unused and in its original packaging.
Return procedure for LTC2460CMS#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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