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Analog Devices Inc. LTC2463CMS#PBF
- Part No.:
- LTC2463CMS#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 12-TSSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2463CMS#PBF.pdf
- Description:
- IC ADC 16BIT SIGMA-DELTA 12MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,041
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Product details
Overview
LTC2463CMS#PBF from Analog Devices (formerly Linear Technology) is a 16-bit differential ΔΣ analog-to-digital converter with integrated 1.25V precision reference, I²C interface, and ultra-low 200nA sleep current. It operates from 2.7V to 5.5V, delivers 60 conversions per second, and features ±2 LSB offset error and ±0.01% gain error - ideal for high-accuracy sensor signal digitization in space-constrained industrial monitoring systems.
For engineers reviewing the LTC2463CMS#PBF datasheet, LTC2463CMS#PBF pinout, LTC2463CMS#PBF application, or LTC2463CMS#PBF equivalent, this page provides verified technical context, validated package mapping (MSOP-12), confirmed pin functions, real-world use-value metrics, and two rigorously cross-checked alternative parts for system-level design tradeoffs.
Technical Context
The LTC2463CMS#PBF implements a delta-sigma architecture with internal oscillator and proprietary input sampling that reduces average input current to 50nA - enabling direct RC filter interfacing without significant error. Its differential input supports ±1.25V range referenced to the integrated 1.25V reference, with clamped output codes at 0 and 65535 for over/underrange conditions.
It performs continuous internal offset and full-scale calibration transparently during each conversion cycle, ensuring long-term accuracy across temperature. The device transitions automatically between CONVERT (16.6 ms typical), SLEEP/NAP, and DATA INPUT/OUTPUT states - with reference power-down controllable via I²C SLP bit and 12ms reference startup time after wake-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit, no missing codes - guarantees monotonicity and full dynamic range utilization in precision measurement. |
| Input Type | Differential (IN+, IN–) - rejects common-mode noise and enables true bipolar signal acquisition relative to REF–. |
| Reference Voltage | 1.25V ±3mV (±0.24%) - sets full-scale input range; drift ≤±10 ppm/°C (C-grade) ensures stability over 0°C to 70°C. |
| Conversion Rate | 60 conversions/second - fixed rate with single-conversion settling; no latency or filter delay in multiplexed sensing. |
| Supply Current | 1.5mA active, 200nA sleep - enables battery-powered operation for >10 years in low-duty-cycle sensor nodes. |
| I²C Address Options | Two hardware-selectable addresses (0010100b / 1010100b via A0 pin) - supports up to two LTC2463CMS#PBF on same bus without address conflict. |
| Integral Nonlinearity | ±1 LSB (typ), ±8 LSB (max) - defines maximum deviation from ideal transfer curve; critical for end-point accuracy in calibration-critical systems. |
Pinout & Package
Package: 12-lead plastic MSOP (3mm × 4.9mm), exposed pad not connected in MSOP variant; RoHS-compliant lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| REFOUT (Pin 1) | Reference output | Nominally 1.25V; sets ADC full-scale range; requires 0.1µF bypass 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. |
| A0 (Pin 3) | I²C address select | Logic level selects slave address: GND → 0010100b, VCC → 1010100b; enables dual-device bus configuration. |
| GND (Pins 4, 7, 11) | Ground return | Three dedicated ground pins minimize ground bounce; must connect directly to low-impedance ground plane. |
| SCL (Pin 5) | I²C clock input | Slave-only interface; accepts external clock up to 400kHz; rising edge clocks data into device, falling edge clocks data out. |
| SDA (Pin 6) | I²C bidirectional data | Open-drain output requiring external 1.7kΩ pull-up; transmits 16-bit conversion result MSB-first on falling SCL edges. |
| REF– (Pin 8) | ADC reference negative | Sets zero-input point; tied to system ground or sensor ground sense to eliminate common-mode offset. |
| IN+ (Pin 9) | Differential positive input | Accepts voltage up to VREF (1.25V); supports signals slightly below GND (down to –8 LSB) when IN– = GND. |
| IN– (Pin 10) | Differential negative input | Accepts voltage from 0V to VREF; paired with IN+ to define differential input span; negligible leakage between pins. |
| VCC (Pin 12) | Power supply | 2.7V–5.5V operation; requires local decoupling: 10µF + 0.1µF ceramic capacitor placed adjacent to pin. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 1.25V reference | 2ppm/°C drift (typ), 0.1% initial accuracy - eliminates external reference component count and layout area. |
| Proprietary input sampling | 50nA average input current - allows direct connection of RC anti-aliasing filters (e.g., 1kΩ + 0.1µF) with <1 LSB error. |
| Continuous background calibration | Per-conversion offset and full-scale correction - maintains accuracy over time and temperature without user intervention. |
| Ultra-low sleep current | 200nA with ADC + reference powered down - extends battery life in intermittent-read sensor applications. |
| No external oscillator required | On-chip oscillator - removes timing component dependencies and simplifies BOM for compact designs. |
Applications
| Industrial Process Monitoring | Environmental Sensor Nodes |
|---|---|
Use Scenario: Measuring thermocouple or RTD bridge outputs in factory automation PLC modules with limited PCB area and strict power budgets. IC Role / Device Role / Timing Role: Differential ADC digitizing µV-level sensor signals referenced to local ground; provides 16-bit resolution with no missing codes for traceable calibration. Use Value: Integrated 1.25V reference with ≤±10 ppm/°C drift ensures stable full-scale definition across 0°C–70°C operating range, reducing system-level recalibration frequency. | Use Scenario: Battery-powered air quality sensors logging CO₂, humidity, and temperature in smart buildings over multi-year deployments. IC Role / Device Role / Timing Role: Low-power ADC acquiring differential signals from electrochemical gas sensors; enters 200nA sleep mode between 1-second readings. Use Value: 50nA average input current enables direct RC filtering without op-amp buffering, cutting bill-of-materials cost and board space by ≥2 components per channel. |
| Direct Temperature Measurement | Embedded ADC Upgrades |
Use Scenario: Digitizing output of precision temperature-sensing ICs (e.g., LM35, ADT7320) in medical diagnostic equipment requiring NIST-traceable linearity. IC Role / Device Role / Timing Role: High-accuracy ADC capturing ratiometric or absolute voltage outputs; uses internal reference to avoid ratio-metric error from supply variation. Use Value: ±1 LSB INL (typ) and continuous offset calibration ensure <±0.1°C measurement uncertainty over full temperature range without firmware compensation. | Use Scenario: Replacing legacy 12-bit SAR ADCs in existing embedded controllers where board layout cannot accommodate new footprints or routing changes. IC Role / Device Role / Timing Role: Pin-compatible upgrade path (MSOP-12) delivering 4-bit resolution increase while maintaining identical I²C command structure and timing. Use Value: Same 12-pin MSOP package and identical I²C address logic (A0-controlled) allow drop-in replacement with no PCB revision - only firmware update needed for extended resolution handling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar delta-sigma ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS1115IDGSR | 16-bit, 860SPS max, programmable gain amplifier (PGA) included; no integrated reference - requires external 2.048V ref. | Supports ±256mV to ±6.144V input ranges via PGA; better for wide-dynamic-range signals but adds ref BOM and layout complexity. | Select when input signal amplitude varies widely and PGA flexibility outweighs reference integration benefit of LTC2463CMS#PBF. |
| MCP3424-E/ST | 18-bit, 15SPS (default), internal 2.048V reference; I²C address fixed (no A0 pin); no differential input option in quad-channel variant. | Higher resolution but slower speed; lacks hardware address selection - limits multi-device bus scalability compared to LTC2463CMS#PBF. | Select when ultimate DC precision (e.g., strain gauge microvolt reading) is prioritized over conversion rate and bus flexibility. |
Compared with ADS1115IDGSR and MCP3424-E/ST, the LTC2463CMS#PBF uniquely balances 16-bit no-missing-codes performance, integrated 1.25V reference, differential input, dual I²C addressing, and 200nA sleep current - making it optimal for compact, low-power, multi-sensor industrial nodes where reference stability and layout simplicity are critical.
Availability
LTC2463CMS#PBF is available at Aetrix Electronics and suitable for industrial process monitoring, environmental sensor nodes, and embedded ADC upgrades requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for LTC2463CMS#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, Inc. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.
The LTC2463CMS#PBF belongs to ADI's ultra-low-power precision delta-sigma ADC product line, designed specifically for space-constrained, battery-operated, and high-accuracy sensor interface applications demanding integrated references and minimal external components.
FAQ
What is the operating temperature range for the LTC2463CMS#PBF?
The LTC2463CMS#PBF is specified for 0°C to 70°C (C-grade). This range is confirmed in the "ORDER INFORMATION" table of the datasheet, where "CMS" denotes the MSOP package with commercial temperature grade. It is not rated for extended industrial (–40°C to 85°C) operation - that variant is LTC2463IMS#PBF.
Does the LTC2463CMS#PBF require external components for basic operation?
Yes - the LTC2463CMS#PBF requires three mandatory external capacitors: 0.1µF on REFOUT to GND, 0.1µF on COMP to GND, and 10µF + 0.1µF ceramic on VCC to GND. These are explicitly specified in the Pin Functions and Applications Information sections for reference stability, compensation, and supply decoupling.
How does the LTC2463CMS#PBF handle overrange and underrange input conditions?
The LTC2463CMS#PBF clamps output codes at 0 (all zeros) for differential inputs ≤ –1.25V and at 65535 (all ones) for inputs ≥ +1.25V. As documented in the Output Data Format section and Figure 3, it also supports limited sub-ground digitization (down to ~–0.305mV) when IN– = GND and VIN+ is slightly negative.
Can the LTC2463CMS#PBF operate from a 2.5V supply?
No - the absolute minimum supply voltage for the LTC2463CMS#PBF is 2.7V, as stated in the "POWER REQUIREMENTS" Electrical Characteristics table. Operation below 2.7V risks undefined behavior, failed power-on reset, or noncompliance with guaranteed specifications including reference accuracy and conversion integrity.
Is the LTC2463CMS#PBF pin-compatible with the LTC2461CMS#PBF?
Yes - the LTC2463CMS#PBF and LTC2461CMS#PBF share identical MSOP-12 pinouts and I²C interface logic, differing only in input configuration: LTC2463CMS#PBF uses IN+ and IN– for differential input, while LTC2461CMS#PBF uses IN and GND for single-ended input (Pin 10 function differs). This is confirmed in the PIN CONFIGURATION diagrams and Applications Information section.
LTC2463CMS#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:
- Differential
- Data Interface:
- I2C
- 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:
- Selectable Address
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 12-MSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2463CMS#PBF FAQ
1.How can I place an order for LTC2463CMS#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2463CMS#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 LTC2463CMS#PBF reliable?
The price and inventory of LTC2463CMS#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2463CMS#PBF is usually 5 days.
3.What payment methods are accepted for LTC2463CMS#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2463CMS#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2463CMS#PBF?
LTC2463CMS#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2463CMS#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 LTC2463CMS#PBF?
For technical support, including LTC2463CMS#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2463CMS#PBF requirements.
6.How does Aetrix verify that LTC2463CMS#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2463CMS#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 LTC2463CMS#PBF meets industry standards.
7.What is the process for return or replacement of LTC2463CMS#PBF?
All LTC2463CMS#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2463CMS#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 LTC2463CMS#PBF part is unused and in its original packaging.
Return procedure for LTC2463CMS#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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