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Analog Devices Inc. LTC2460IMS#PBF
- Part No.:
- LTC2460IMS#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 12-TSSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2460IMS#PBF.pdf
- Description:
- IC ADC 16BIT SIGMA-DELTA 12MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:832
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Product details
Overview
LTC2460IMS#PBF 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 - enabling high-accuracy sensor digitization in space-constrained industrial monitoring systems.
For engineers reviewing the LTC2460IMS#PBF datasheet, LTC2460IMS#PBF pinout, LTC2460IMS#PBF application, or LTC2460IMS#PBF equivalent, key selection considerations include its –40°C to +85°C industrial temperature grade, ultra-low 200nA sleep current, no-latency serial output, internal oscillator, and differential-input-compatible pinout shared with LTC2462 for flexible design reuse.
Technical Context
The LTC2460IMS#PBF implements a proprietary input sampling architecture that reduces average input current to 50nA - enabling direct RC filtering without significant error. Its continuous internal offset and full-scale calibration runs transparently every conversion, ensuring stability across temperature and time without user intervention.
It uses a fixed 16.6ms conversion time (max 23ms), supports CPOL = 0 or 1 SPI modes, and transitions automatically between CONVERT → NAP → DATA INPUT/OUTPUT states. Reference startup requires 12ms after power-up or SLP wake, and the device enters sub-2µA sleep when both ADC and reference are disabled.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with no missing codes - guarantees monotonicity and full dynamic range utilization in precision measurement. |
| Reference Voltage | 1.25V ±3mV (1.247V–1.253V) with ±5ppm/°C max drift - enables stable 0V to 1.25V input range without external reference. |
| Conversion Rate | 60 conversions per second - supports real-time sampling of slow-varying industrial signals like temperature or pressure. |
| Supply Current | 1.5mA during conversion, 800µA in Nap mode, 200nA in Sleep mode - extends battery life in portable or energy-harvested systems. |
| Input Type | Single-ended (IN to GND, REF– tied to GND) - simplifies signal conditioning for unipolar sensors like RTDs or voltage outputs. |
| Interface | SPI with 2–4 wire support, CPOL configurable, no external clock required - reduces BOM and layout complexity. |
| Accuracy | ±0.01% gain error, ±2 LSB offset error, ±10 LSB INL - meets Class I instrumentation requirements without system-level trimming. |
Pinout & Package
Package: 12-lead plastic MSOP (3mm × 3mm), exposed pad optional, rated for –40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| REFOUT (1) | Reference output | 1.25V precision voltage source; must be decoupled with ≤0.1µF to GND; cannot be overdriven. |
| COMP (2) | Reference compensation | Connects to same 0.1µF capacitor as REFOUT to stabilize reference loop 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 | Accepts 4-bit programming word (EN1/EN2/SPD/SLP); can be tied to GND/VCC for simplified 60Hz or 30Hz mode selection. |
| SCK (5) | Serial clock input | Controls data timing; supports idle-high (CPOL=1) or idle-low (CPOL=0) SPI modes; min 250ns pulse width. |
| SDO (6) | Serial data output | 3-state output delivering 16-bit MSB-first result; indicates conversion status (HIGH = in progress, LOW = complete) when CS pulled low with SCK HIGH. |
| GND (7, 11) | Ground | Low-impedance connection points to PCB ground plane; pins 7 and 11 are internally connected. |
| REF– (8) | Negative reference input | Tied directly to system GND or sensor ground sense point; sets zero-scale input level. |
| IN (9) | Analog input (single-ended) | Accepts 0V to VREF (0–1.25V) input; clamped at 0 or 65535 for under/over-range conditions. |
| GND (10) | Ground (redundant) | Additional GND connection; improves noise immunity and thermal dissipation in MSOP package. |
| VCC (12) | Positive supply | 2.7V–5.5V operation; requires 10µF + 0.1µF parallel bypassing close to pin. |
Key Features
| Feature | Design Value |
|---|---|
| No-latency serial output | Each 16-bit result corresponds exactly to the most recently completed conversion - eliminates filter delay and enables true multiplexed sampling. |
| Auto-calibrating architecture | Continuous internal offset and full-scale calibration runs every conversion - maintains accuracy across temperature and aging without host intervention. |
| Ultra-low input current | 50nA average sampling current - allows direct use of simple RC anti-aliasing filters (e.g., 1kΩ + 0.1µF) with <1 LSB error. |
| Configurable power states | Three operational modes: full conversion (1.5mA), Nap (800µA), and Sleep (200nA) - optimized for intermittent sensing in battery-powered applications. |
| Integrated oscillator | No external timing components required - eliminates crystal, capacitors, or clock routing, reducing board area and cost. |
Applications
| Environmental Monitoring | Industrial Process Control |
|---|---|
Use Scenario: Measuring temperature via thermistor or RTD in remote weather stations or HVAC ducts. IC Role / Device Role / Timing Role: Single-ended ADC digitizing ratiometric voltage output; provides stable 1.25V reference for excitation and measurement. Use Value: Eliminates external reference and calibration, achieving ±0.1°C accuracy over –40°C to +85°C with minimal external components. |
Use Scenario: Monitoring analog 4–20mA loop signals converted to voltage via precision shunt resistor. IC Role / Device Role / Timing Role: High-accuracy front-end ADC capturing slow process variables (pressure, flow, level) with built-in reference stability. Use Value: Delivers 16-bit resolution and ±0.01% gain error without system calibration, reducing commissioning time and field maintenance. |
| Embedded Sensor Nodes | Portable Instrumentation |
Use Scenario: Battery-powered structural health monitors using strain gauges or piezoresistive sensors. IC Role / Device Role / Timing Role: Low-power ADC with 200nA sleep current and automatic shutdown - wakes only for scheduled measurements. Use Value: Enables multi-year operation on coin-cell batteries by minimizing active time and eliminating reference leakage paths. |
Use Scenario: Handheld multimeters or calibration tools requiring high DC accuracy and compact form factor. IC Role / Device Role / Timing Role: Precision digitizer with no missing codes and internal calibration - replaces multi-chip solutions with single MSOP-12 IC. Use Value: Reduces PCB area by >40% vs discrete reference + ADC designs while maintaining metrology-grade linearity and drift performance. |
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 | 16-bit, I²C interface, no integrated reference (requires external 2.048V ref), 860µA typical active current | Lower integration; lacks auto-calibration and ultra-low sleep current; suited for I²C-based microcontrollers | Choose ADS1115IDGSR if I²C bus availability and lower pin count outweigh need for reference integration and sub-µA sleep. |
| LTC2462IMS#PBF | Differential-input variant, identical pinout/package, same reference and timing specs, 60Hz default output rate with background offset calibration | Supports bipolar inputs (±1.25V) and rejects common-mode noise - ideal for bridge sensors or isolated measurements | Choose LTC2462IMS#PBF when measuring differential signals or rejecting EMI; shares layout and firmware compatibility with LTC2460IMS#PBF. |
Compared with ADS1115IDGSR, LTC2460IMS#PBF offers superior integration (on-chip reference, oscillator, calibration) and 1000× lower sleep current; compared with LTC2462IMS#PBF, it trades differential input capability for simpler single-ended interfacing and identical industrial temperature rating.
Availability
LTC2460IMS#PBF is available at Aetrix Electronics and suitable for environmental monitoring, industrial process control, and embedded sensor node applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC2460IMS#PBF 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 high-precision analog product lines, including delta-sigma ADCs, with focus on performance, reliability, and industrial-grade specifications.
The LTC2460IMS#PBF belongs to Linear's ultra-low-power, integrated-reference ADC family designed for space-constrained, battery-operated, and high-accuracy measurement systems where reference stability and calibration autonomy are critical.
FAQ
What is the operating temperature range of the LTC2460IMS#PBF?
The LTC2460IMS#PBF is specified for –40°C to +85°C operation, qualifying it for industrial environments including factory automation, outdoor monitoring, and automotive under-hood auxiliary systems. This I-grade rating is confirmed in the order information table and absolute maximum ratings section of the official datasheet.
Does the LTC2460IMS#PBF require an external crystal or clock source?
No, the LTC2460IMS#PBF includes a fully integrated oscillator and requires no external timing components. This is explicitly stated in the Features list ("Internal Oscillator-No External Components Required") and verified in the Block Diagram and Applications Information sections.
How does the LTC2460IMS#PBF handle input overrange or underrange conditions?
The LTC2460IMS#PBF clamps output codes at 0 (all zeros) for inputs below 0V and at 65535 (all ones) for inputs above VREF (1.25V). This behavior is defined in the "Input Voltage Range (LTC2460)" section and illustrated in Table 1 of the datasheet.
Can the LTC2460IMS#PBF be used with a 3.3V microcontroller SPI interface?
Yes - the LTC2460IMS#PBF supports digital input voltages from 0.3V to VCC–0.3V and output levels of VCC–0.5V (high) and 0.4V (low) at 1.6mA load, making it fully compatible with 3.3V logic when VCC = 3.3V. These values are specified in the Digital Inputs and Outputs table.
What is the conversion time and settling behavior of the LTC2460IMS#PBF?
The LTC2460IMS#PBF has a fixed conversion time of 13–23ms (typical 16.6ms), with no latency or filter settling delay. Its output corresponds one-to-one with the last completed conversion, enabling true multiplexed sampling without additional timing overhead - as confirmed in the "Ease of Use" and "Converter Operation Cycle" sections.
LTC2460IMS#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 12-TSSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- 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#PBF FAQ
1.How can I place an order for LTC2460IMS#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2460IMS#PBF 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#PBF reliable?
The price and inventory of LTC2460IMS#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2460IMS#PBF is usually 5 days.
3.What payment methods are accepted for LTC2460IMS#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2460IMS#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2460IMS#PBF?
LTC2460IMS#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2460IMS#PBF 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#PBF?
For technical support, including LTC2460IMS#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2460IMS#PBF requirements.
6.How does Aetrix verify that LTC2460IMS#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2460IMS#PBF 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#PBF meets industry standards.
7.What is the process for return or replacement of LTC2460IMS#PBF?
All LTC2460IMS#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2460IMS#PBF, 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#PBF part is unused and in its original packaging.
Return procedure for LTC2460IMS#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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