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Analog Devices Inc. LTC2463CDD#TRPBF
- Part No.:
- LTC2463CDD#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 12-WFDFN Exposed Pad
- Datasheet:
-
LTC2463CDD#TRPBF.pdf
- Description:
- IC ADC 16BIT SIGMA-DELTA 12DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,776
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Product details
Overview
LTC2463CDD#TRPBF 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 (typ), 0.01% gain error (typ), and 2 ppm/°C reference drift (C-grade). It targets high-accuracy sensor digitization in space-constrained industrial monitoring systems.
For engineers reviewing the LTC2463CDD#TRPBF datasheet, LTC2463CDD#TRPBF pinout, LTC2463CDD#TRPBF application, or LTC2463CDD#TRPBF equivalent, key selection criteria include its differential input architecture, integrated reference stability over temperature, I²C address configurability via A0 pin, and guaranteed no-missing-codes performance across 0°C to 70°C.
Technical Context
The LTC2463CDD#TRPBF implements a delta-sigma modulation architecture with internal decimating sinc filter and proprietary low-input-current sampling scheme-reducing average input current to 50nA. Its conversion cycle includes automatic power-down states (NAP and SLEEP), with reference startup time of 12ms after wake-up when CCOMP = CREFOUT = 0.1µF.
It uses an internal oscillator (no external crystal required), supports two I²C slave addresses (0010100b or 1010100b depending on A0 logic level), and provides continuous internal offset and full-scale calibration transparent to the host system-ensuring long-term accuracy without user intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with no missing codes-guarantees monotonicity and full dynamic range utilization for precision measurement. |
| Input Type | Differential (IN+, IN–)-rejects common-mode noise and enables true bipolar signal acquisition up to ±1.25V relative to REF–. |
| Reference Output | 1.25V ±3mV (1.247V–1.253V) with ≤2 ppm/°C drift (C-grade)-enables stable full-scale definition without external reference components. |
| Conversion Rate | 60 conversions per second-supports real-time monitoring of slow-varying physical parameters (e.g., temperature, pressure). |
| Supply Current | 1.5mA during conversion, 200nA in SLEEP mode-enables battery-powered operation with multi-year runtime in duty-cycled sensing nodes. |
| I²C Interface | Standard/Fast-mode (0–400kHz), two configurable addresses + global sync-allows multi-device bus coordination without address conflict. |
| Operating Temp | 0°C to 70°C (C-grade)-validated for commercial and industrial control environments where ambient extremes are bounded. |
Pinout & Package
Package: 12-lead (3mm × 3mm) plastic DFN with exposed pad (Pin 13), RoHS-compliant, moisture-sensitive level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| REFOUT (1) | Reference output | Nominally 1.25V reference voltage source; must be bypassed with 0.1µF capacitor to GND for stability and low noise. |
| COMP (2) | Reference compensation | Internal reference compensation node; requires 0.1µF capacitor to GND matching or exceeding REFOUT capacitance. |
| A0 (3) | I²C address select | Logic level sets slave address: GND → 0010100b, VCC → 1010100b-enables dual-device addressing on same bus. |
| GND (4, 7, 11) | Ground return | Three dedicated ground pins plus exposed pad (13); require low-impedance connection to PCB ground plane for noise immunity. |
| SCL (5) | I²C clock input | Slave-only serial clock input; accepts external clock up to 400kHz-no internal clock generation required for timing. |
| SDA (6) | I²C bidirectional data | Open-drain output requiring external pull-up; transmits 16-bit conversion result MSB-first on falling SCL edges. |
| REF– (8) | Reference negative input | Sets zero-scale point; tied directly to system ground or sensor ground sense-defines differential input common-mode baseline. |
| IN+ (9) | Differential positive input | Accepts input voltage from 0V to VREF (1.25V); supports signals slightly below GND (up to 8 LSBs) due to proprietary sampling architecture. |
| IN– (10) | Differential negative input | Accepts input voltage from 0V to VREF; paired with IN+ to form true differential pair rejecting EMI and supply noise. |
| VCC (12) | Power supply | 2.7V–5.5V single supply; requires local decoupling with 10µF + 0.1µF capacitors placed adjacent to pin. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 1.25V reference | 2 ppm/°C max drift (C-grade) and 0.1% initial accuracy eliminate need for external reference and reduce BOM count. |
| Differential input architecture | Supports true bipolar measurements (±1.25V) with common-mode rejection-ideal for bridge sensors and isolated signal chains. |
| Ultra-low input sampling current | 50nA average current enables direct RC filtering (e.g., 1kΩ + 0.1µF) with <1 LSB error-simplifies anti-aliasing design. |
| Automatic calibration | Continuous internal offset and full-scale correction per conversion ensures accuracy over time and temperature without host intervention. |
| Configurable power modes | Three states: CONVERT (1.5mA), NAP (750µA), SLEEP (200nA)-enables precise energy budgeting in battery-operated systems. |
Applications
| Industrial Process Monitoring | Environmental Sensor Nodes |
|---|---|
Use Scenario: Continuous logging of thermocouple or RTD outputs in factory automation panels with limited board space and strict power budgets. IC Role / Device Role / Timing Role: Differential ADC digitizing millivolt-level sensor outputs referenced to local ground; provides synchronized 16-bit samples at 60Hz. Use Value: Eliminates external reference and op-amp signal conditioning, reducing component count by ≥4 parts while maintaining ±0.01% measurement accuracy over 0°C–70°C. | Use Scenario: Low-power wireless air quality sensor measuring PM2.5, CO₂, and humidity using resistive and electrochemical transducers. IC Role / Device Role / Timing Role: Precision digitizer for ratiometric sensor bridges; powers down to 200nA between 1-second measurement cycles. Use Value: Enables >5-year battery life on CR2032 using only 200nA sleep current and 16ms conversion time-no external power gating required. |
| Embedded System Health Monitoring | Medical Diagnostic Equipment |
Use Scenario: Real-time monitoring of supply rail voltages, fan tachometers, and temperature sensors inside network switches and servers. IC Role / Device Role / Timing Role: Multi-channel system monitor ADC interfacing to I²C bus; reads 4–8 analog points via external multiplexer. Use Value: Single-conversion settling eliminates latency in multiplexed configurations-no software delay or redundant reads needed for accurate cross-channel correlation. | Use Scenario: Portable blood glucose meters requiring high linearity and low drift across clinical operating temperatures (15°C–40°C). IC Role / Device Role / Timing Role: Front-end ADC for amperometric biosensor interfaces; converts nanoamp-level current via precision transimpedance amplifier. Use Value: 2ppm/°C reference drift ensures <0.1% full-scale error shift over clinical range-meets ISO 15197:2013 accuracy requirements without recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision delta-sigma ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS1115IDGSR | 4-channel, 16-bit, PGA-integrated, 860µA active current, 15ppm/°C reference drift (typ) | Better channel count and programmable gain; higher power and looser reference stability | Select when multi-channel acquisition or variable gain is required; avoid if ultra-low drift or lowest sleep current is critical. |
| MCP3424-E/SL | 4-channel, 18-bit, no internal reference, requires external 2.048V ref, 1.2mA active current | Higher resolution but adds external reference cost/complexity; lacks integrated reference and sleep optimization | Select when 18-bit resolution outweighs BOM simplicity and power savings; not drop-in due to reference dependency. |
Compared with ADS1115IDGSR and MCP3424-E/SL, the LTC2463CDD#TRPBF offers superior reference stability (2ppm/°C vs 15ppm/°C or external dependency) and lowest sleep current (200nA vs ≥1µA), making it optimal for single-channel, battery-critical, high-accuracy sensor nodes where integration and long-term calibration stability are prioritized.
Availability
LTC2463CDD#TRPBF is available at Aetrix Electronics and suitable for industrial process monitoring, environmental sensor nodes, and embedded system health monitoring requiring stable component supply, traceable sourcing, and lifecycle continuity.
Supply support for LTC2463CDD#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 technologies, serving industrial, automotive, communications, and healthcare markets.
The LTC2463CDD#TRPBF belongs to ADI's legacy Linear Technology precision ADC family, designed specifically for ultra-small-footprint, low-power, high-accuracy sensor digitization in space- and energy-constrained applications.
FAQ
What is the maximum operating temperature range for the LTC2463CDD#TRPBF?
The LTC2463CDD#TRPBF is rated for 0°C to 70°C (C-grade). This specification is validated per the manufacturer's datasheet Absolute Maximum Ratings and Electrical Characteristics tables. Operation outside this range may result in parametric degradation or functional failure. For extended temperature operation, consider the LTC2463IDD#TRPBF (–40°C to 85°C).
Does the LTC2463CDD#TRPBF require external clocking or crystal components?
No, the LTC2463CDD#TRPBF includes a fully integrated oscillator and requires no external clock source, crystal, or timing components. All timing-including conversion rate, internal calibration, and I²C synchronization-is derived from this on-chip oscillator, simplifying layout and reducing BOM count.
How does the LTC2463CDD#TRPBF handle input signals below ground potential?
The LTC2463CDD#TRPBF supports differential inputs down to approximately –0.305mV (8 LSBs below GND) when VIN– is tied to ground and VIN+ is slightly negative. This capability stems from its proprietary input sampling architecture-not from rail-to-rail input stage design-and is documented in Figure 3 and Applications Information section of the datasheet.
What is the purpose of the COMP pin on the LTC2463CDD#TRPBF?
COMP (Pin 2) is the internal reference compensation node. It must be connected to a 0.1µF capacitor to ground-matching or exceeding the capacitance on REFOUT-to ensure stability and low-noise operation of the integrated 1.25V reference. Omitting or undersizing this capacitor degrades reference accuracy and increases output noise.
Can the LTC2463CDD#TRPBF be used in a multi-device I²C system without address conflicts?
Yes. The LTC2463CDD#TRPBF supports two unique I²C slave addresses (0010100b and 1010100b) selected by the logic level on the A0 pin. This allows up to two LTC2463CDD#TRPBF devices-or one LTC2463CDD#TRPBF and one LTC2461CDD#TRPBF-to coexist on the same bus without address collision.
LTC2463CDD#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 12-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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-DFN (3x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2463CDD#TRPBF FAQ
1.How can I place an order for LTC2463CDD#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2463CDD#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 LTC2463CDD#TRPBF reliable?
The price and inventory of LTC2463CDD#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2463CDD#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2463CDD#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2463CDD#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2463CDD#TRPBF?
LTC2463CDD#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2463CDD#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 LTC2463CDD#TRPBF?
For technical support, including LTC2463CDD#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2463CDD#TRPBF requirements.
6.How does Aetrix verify that LTC2463CDD#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2463CDD#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 LTC2463CDD#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2463CDD#TRPBF?
All LTC2463CDD#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2463CDD#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 LTC2463CDD#TRPBF part is unused and in its original packaging.
Return procedure for LTC2463CDD#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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