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Analog Devices Inc. LTC2460IMS#TRPBF
- Part No.:
- LTC2460IMS#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 12-TSSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2460IMS#TRPBF.pdf
- Description:
- IC ADC 16BIT SIGMA-DELTA 12MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,088
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Product details
Overview
LTC2460IMS#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 MSOP-12 package. It delivers 60 conversions per second, ±0.01% gain error, 2 LSB offset error, and operates from 2.7V to 5.5V supply. It is used in low-power system monitoring and embedded sensor interfaces where compact size and self-calibrating accuracy are critical.
For engineers reviewing the LTC2460IMS#TRPBF datasheet, LTC2460IMS#TRPBF pinout, LTC2460IMS#TRPBF application, or LTC2460IMS#TRPBF equivalent, key selection considerations include its single-ended input range (0V to VREF), 2µA sleep current, internal oscillator eliminating external timing components, and guaranteed no missing codes across temperature.
Technical Context
The LTC2460IMS#TRPBF implements a proprietary delta-sigma architecture with continuous internal offset and full-scale calibration-transparent to the user and effective over –40°C to +85°C. Its conversion time is fixed at 13–23 ms, with no latency between completion and data availability via SPI.
It uses an internal oscillator and supports CPOL = 0 or CPOL = 1 SPI modes. The device enters NAP mode after conversion (reducing ICC to 800 µA) and can enter SLEEP mode (ICC ≤ 2 µA) when both ADC and reference are powered down-enabled via SDI programming or hardwired SDI logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit, no missing codes-guarantees monotonicity and full dynamic range utilization. |
| Reference Voltage | 1.25 V ±3 mV (1.247–1.253 V), enabling precise 0V–1.25V input scaling without external reference. |
| Gain Error | ±0.01% FS-limits full-scale measurement deviation to <800 µV at 1.25V reference. |
| Offset Error | 2 LSB max (≈38 µV)-ensures accurate zero-input response without manual nulling. |
| Supply Current (Conversion) | 1.5–2.5 mA-supports battery-powered operation with predictable power budgeting. |
| Sleep Current | ≤2 µA-enables multi-year operation in energy-harvesting or wake-on-event sensor nodes. |
| Input Sampling Current | 50 nA average-permits direct connection to high-impedance sensors or RC filters without buffer amplifiers. |
Pinout & Package
Package: 12-lead plastic MSOP (3mm × 3mm), exposed pad optional for thermal/ground connection. Operating temperature range: –40°C to +85°C (I-grade).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| REFOUT (1) | Reference output | Nominally 1.25 V; sets ADC full-scale range; requires 0.1 µF bypass to GND for stability. |
| COMP (2) | Reference compensation | Connects 0.1 µF capacitor to GND to stabilize internal reference and minimize noise. |
| CS (3) | Chip select (active low) | Enables SDO output and initiates DATA INPUT/OUTPUT state; HIGH places SDO in high-Z. |
| SDI (4) | Serial data input | 4-bit programming interface for SPD (output rate) and SLP (reference sleep enable); can be tied to GND/VCC for simplified control. |
| SCK (5) | Serial clock input | Drives SPI timing; supports idle-high (CPOL=1) or idle-low (CPOL=0) modes; max 2 MHz frequency. |
| SDO (6) | Serial data output | 3-state output delivering 16-bit result MSB-first; reflects last completed conversion with zero latency. |
| GND (7, 11) | Ground | Dual ground pins for low-impedance return path; exposed pad (Pin 13 in DFN only) not present in MSOP package. |
| REF– (8) | Negative reference input | Tied to system ground or sensor ground sense point; defines zero-input level for ADC. |
| IN (9) | Single-ended analog input | Accepts 0V to VREF (0–1.25 V) signals; no differential pairing required-simplifies layout vs. LTC2462. |
| GND (10) | Input ground reference | Dedicated ground return for IN pin; decouples analog input path from digital ground noise. |
| VCC (12) | Positive supply | 2.7–5.5 V operation; requires local 10 µF + 0.1 µF ceramic bypass for stable conversion performance. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 1.25 V reference | 2 ppm/°C drift (I-grade), 0.1% initial accuracy-eliminates external reference IC and associated layout complexity. |
| Single-cycle conversion with auto shutdown | Fixed 16.6 ms typical conversion time followed by automatic NAP/SLEEP entry-no software timing loops needed. |
| No-latency SPI data output | SDO delivers final result immediately upon CS assertion-enables deterministic real-time sampling in multiplexed systems. |
| Proprietary input sampling scheme | 50 nA average input current-allows direct RC anti-aliasing filter (e.g., 1 kΩ + 0.1 µF) with <1 LSB error. |
| Continuous internal calibration | Per-conversion offset and full-scale correction-maintains accuracy over temperature and time without user intervention. |
Applications
| System Monitoring | Environmental Sensing |
|---|---|
Use Scenario: Monitoring voltage rails, temperature, or current in industrial PLC modules with limited board space. IC Role / Device Role / Timing Role: Single-ended ADC digitizing buffered sensor outputs at 60 Hz with autonomous calibration. Use Value: Eliminates external reference and reduces BOM count while maintaining ±0.01% gain accuracy across –40°C to +85°C. |
Use Scenario: Battery-powered air quality node measuring thermistor, humidity, and CO₂ sensor outputs. IC Role / Device Role / Timing Role: Low-power ADC acquiring analog sensor data with 2 µA sleep current between readings. Use Value: Enables >5-year battery life using coin cell due to sub-µA quiescent current and no external timing components. |
| Direct Temperature Measurement | Embedded ADC Upgrade |
Use Scenario: Digitizing PT100 or thermistor bridges in medical diagnostic equipment requiring traceable accuracy. IC Role / Device Role / Timing Role: Precision ADC with integrated reference replacing discrete op-amp + external reference solutions. Use Value: Reduces offset drift to 2 LSB max and gain drift to ±5 ppm/°C-meeting Class A RTD measurement requirements. |
Use Scenario: Replacing legacy 12-bit SAR ADCs in existing designs to improve resolution without PCB redesign. IC Role / Device Role / Timing Role: Pin-compatible upgrade offering 16-bit resolution, no missing codes, and SPI compatibility. Use Value: Doubles effective resolution while retaining same MSOP-12 footprint and software interface-zero layout change required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit sigma-delta ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS1115IDGSR | 4-channel, I²C interface, 4.096 V reference, no internal oscillator-requires external clock or master timing. | Better for multi-sensor polling; less suitable for ultra-low-power sleep modes due to higher 150 µA standby current. | Select if I²C bus integration and channel multiplexing outweigh SPI simplicity and sub-µA sleep needs. |
| LTC2450CMS#PBF | Single-ended, 20-bit resolution, wider input range (0–2.048 V), same MSOP-12 package but higher 3.3 mA conversion current. | Preferred for higher-resolution measurements where 16-bit is insufficient; trade-off is increased power and cost. | Choose when 20-bit resolution and extended VREF are mandatory, and 3.3 mA supply current is acceptable. |
Compared with ADS1115IDGSR and LTC2450CMS#PBF, the LTC2460IMS#TRPBF uniquely balances 16-bit precision, 2 µA sleep current, integrated oscillator, and SPI simplicity-making it optimal for space-constrained, battery-sensitive, single-input measurement nodes.
Availability
LTC2460IMS#TRPBF is available at Aetrix Electronics and suitable for system monitoring, environmental sensing, and embedded ADC upgrades requiring stable component supply across industrial temperature ranges.
Supply support for LTC2460IMS#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 product lines with rigorous automotive and industrial qualification standards.
The LTC2460IMS#TRPBF belongs to Linear's ultra-low-power delta-sigma ADC family, designed specifically for compact, self-contained measurement systems needing integrated reference and minimal external components.
FAQ
What is the operating temperature range of the LTC2460IMS#TRPBF?
The LTC2460IMS#TRPBF is rated for –40°C to +85°C (I-grade), validated across this full range for parameters including gain error (±5 ppm/°C), offset error drift (0.02 LSB/°C), and reference voltage coefficient. This makes LTC2460IMS#TRPBF suitable for industrial and automotive under-hood environments where ambient thermal stress is significant.
Does the LTC2460IMS#TRPBF require an external crystal or oscillator?
No, the LTC2460IMS#TRPBF includes a fully integrated oscillator-no external timing components are needed. This simplifies design, reduces BOM count, and eliminates oscillator startup delay or frequency tolerance concerns. The LTC2460IMS#TRPBF achieves fixed 60 conversions per second using this internal clock source.
How does the LTC2460IMS#TRPBF handle input overrange or underrange conditions?
The LTC2460IMS#TRPBF clamps output codes at 0 (all zeros) for inputs below 0 V and at 65535 (all ones) for inputs above VREF (1.25 V). It does not saturate gradually-it provides immediate digital saturation, ensuring unambiguous detection of out-of-range signals without additional firmware interpretation.
Can the LTC2460IMS#TRPBF be used in differential-input applications?
No-the LTC2460IMS#TRPBF is strictly single-ended (IN pin referenced to dedicated GND pin 10). For differential input, the pin-compatible LTC2462IMS#TRPBF must be used. Both share identical package, SPI interface, and power characteristics-but LTC2460IMS#TRPBF lacks IN– and supports only 0V–VREF input range.
What is the purpose of the COMP pin on the LTC2460IMS#TRPBF?
The COMP pin (Pin 2) connects to the internal reference compensation network. A 0.1 µF capacitor to GND is mandatory for stable reference operation and low-noise performance. Omitting or undersizing this capacitor causes reference instability, increased transition noise (>2.2 µVRMS), and degraded long-term accuracy-directly impacting LTC2460IMS#TRPBF measurement integrity.
LTC2460IMS#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:
- -40°C ~ 85°C
- Supplier Device Package:
- 12-MSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2460IMS#TRPBF FAQ
1.How can I place an order for LTC2460IMS#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2460IMS#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 LTC2460IMS#TRPBF reliable?
The price and inventory of LTC2460IMS#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2460IMS#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2460IMS#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2460IMS#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2460IMS#TRPBF?
LTC2460IMS#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2460IMS#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 LTC2460IMS#TRPBF?
For technical support, including LTC2460IMS#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2460IMS#TRPBF requirements.
6.How does Aetrix verify that LTC2460IMS#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2460IMS#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 LTC2460IMS#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2460IMS#TRPBF?
All LTC2460IMS#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2460IMS#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 LTC2460IMS#TRPBF part is unused and in its original packaging.
Return procedure for LTC2460IMS#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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