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Analog Devices Inc. LTC2463IDD#TRPBF
- Part No.:
- LTC2463IDD#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 12-WFDFN Exposed Pad
- Datasheet:
-
LTC2463IDD#TRPBF.pdf
- Description:
- IC ADC 16BIT SIGMA-DELTA 12DFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
LTC2463IDD#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 2ppm/°C reference drift (I-grade). It is used in high-accuracy sensor signal conditioning for industrial monitoring systems.
For engineers reviewing the LTC2463IDD#TRPBF datasheet, LTC2463IDD#TRPBF pinout, LTC2463IDD#TRPBF application, or LTC2463IDD#TRPBF equivalent, key selection considerations include its differential input architecture, internal reference stability over –40°C to +85°C, I²C address configurability via A0 pin, and guaranteed no-missing-codes performance across temperature.
Technical Context
The LTC2463IDD#TRPBF implements a proprietary delta-sigma modulator with integrated sinc³ decimation filter and continuous internal offset/full-scale calibration-transparent to the host controller and ensuring long-term accuracy without user intervention. Its differential input accepts ±1.25V range referenced to REF–, enabling true bipolar measurement relative to local ground or remote sense point.
It integrates a fully self-contained 1.25V reference with on-chip compensation (COMP pin), eliminating external components while maintaining 1.247V to 1.253V output tolerance and <30nV/√Hz noise density at 1kHz. The internal oscillator enables single-supply operation with no external timing components required.
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 supports true bipolar sensing down to –1.25V relative to REF–. |
| Reference Drift | ±5 ppm/°C (I-grade)-ensures ≤±0.42 mV total reference variation over –40°C to +85°C operating range. |
| Conversion Rate | 60 conversions/second-enables real-time sampling of slow-varying physical parameters (e.g., temperature, pressure) without aliasing filters. |
| Sleep Current | 200 nA-allows battery-powered nodes to operate for years when idle between measurements. |
| I²C Address Options | Two fixed addresses (0x24 or 0x54) selectable via A0 pin-supports multi-device bus configuration without address conflict. |
| Supply Range | 2.7V to 5.5V-compatible with single-cell Li-ion, 3.3V, and 5V system rails without level-shifting. |
Pinout & Package
Package: 12-lead (3mm × 3mm) plastic DFN with exposed pad (DD package), rated for –40°C to +85°C operation. Thermal resistance θJA = 43°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| REFOUT (1) | Reference output | Nominally 1.25V precision voltage source; sets ADC full-scale range; requires 0.1µF bypass to GND for stability. |
| COMP (2) | Reference compensation | Stabilizes internal reference; must connect 0.1µF capacitor to GND-value must be ≥ REFOUT capacitor. |
| A0 (3) | I²C address select | Logic level determines slave address: GND → 0x24, VCC → 0x54; enables dual-device sharing on same I²C bus. |
| GND (4, 7, 11, 13) | Ground terminals | Four dedicated ground connections-including exposed thermal pad (Pin 13)-ensure low-impedance return path and thermal dissipation. |
| SCL (5) | I²C clock input | Slave-only interface; accepts up to 400 kHz clock; rising edge latches data, falling edge outputs data on SDA. |
| SDA (6) | I²C bidirectional data | Open-drain output requiring external pull-up; transmits 16-bit conversion result MSB-first after ACK. |
| REF– (8) | Negative reference input | Sets zero-scale point; tied directly to system ground or sensor reference node for accurate differential measurement. |
| IN+ (9) | Differential positive input | Accepts voltage up to VREF above REF–; supports inputs slightly below GND (down to –8 LSB) due to proprietary sampling scheme. |
| IN– (10) | Differential negative input | Accepts voltage up to VREF below REF–; enables true differential measurement with common-mode rejection. |
| VCC (12) | Power supply | 2.7V–5.5V input; requires parallel 10µF + 0.1µF ceramic bypass capacitors placed adjacent to pin. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 1.25V reference | 2ppm/°C max drift (I-grade), 0.1% initial accuracy, and 30nV/√Hz noise-eliminates external reference IC and reduces BOM count. |
| Proprietary input sampling | Average input current of only 50nA-permits direct connection of RC anti-aliasing filters (e.g., 1kΩ + 0.1µF) with <1 LSB error. |
| Continuous calibration | Per-conversion offset and full-scale correction-maintains accuracy over time and temperature without host intervention or downtime. |
| No-latency data output | One-to-one correspondence between conversion completion and 16-bit output-enables deterministic timing in multiplexed sensor arrays. |
| Ultra-low power states | 1.5mA active, 800µA nap, 200nA sleep-supports energy harvesting and long-life battery applications with adaptive duty cycling. |
Applications
| Industrial Process Monitoring | Environmental Sensor Nodes |
|---|---|
|
Use Scenario: Measuring thermocouple or RTD outputs in factory automation cabinets with wide ambient temperature swings. IC Role / Device Role / Timing Role: Differential ADC digitizing µV-level signals referenced to local cold-junction compensation; provides stable 16-bit resolution across –40°C to +85°C. Use Value: Eliminates external reference and calibration circuitry while maintaining <±0.01% FS accuracy over full industrial temperature range. |
Use Scenario: Battery-powered air quality sensors measuring PM2.5, CO₂, and humidity in smart building deployments. IC Role / Device Role / Timing Role: Low-power ADC acquiring slow-varying analog sensor outputs; enters 200nA sleep between 10-second measurement intervals. Use Value: Enables >5-year battery life using CR2032 cells by minimizing quiescent current without sacrificing measurement fidelity. |
| Direct Temperature Measurement | Embedded ADC Upgrade |
|
Use Scenario: Precision temperature logging in medical diagnostic equipment using thermistor bridges. IC Role / Device Role / Timing Role: Differential front-end converting bridge imbalance voltage into 16-bit digital output; rejects EMI from nearby switching power supplies. Use Value: Achieves ±0.1°C accuracy over 0–100°C range using only passive components-no software linearization required. |
Use Scenario: Replacing legacy 12-bit SAR ADCs in existing embedded controllers to improve resolution without board redesign. IC Role / Device Role / Timing Role: Pin-compatible upgrade path (DFN-12) delivering 4× higher resolution and integrated reference-reduces layout risk and validation effort. Use Value: Delivers measurable SNR improvement in vibration analysis and acoustic sensing applications while retaining same PCB footprint. |
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 | 16-bit, 860SPS, single-supply 2.0–5.5V, but uses external reference and lacks integrated COMP/REFOUT architecture. | Requires external 2.048V reference and RC filtering; higher input bias current (150pA) limits direct RC filter use. | Choose ADS1115IDGSR only if higher throughput (>60SPS) is needed and external reference design is already established. |
| MCP3424-E/SL | 18-bit, 15SPS, internal 2.048V reference (15ppm/°C), I²C interface, but no differential input flexibility-fixed IN+–IN– mode only. | Limited to 15SPS; higher reference drift degrades accuracy over temperature; no A0 address select option. | Choose MCP3424-E/SL only for applications prioritizing raw resolution over speed and temperature stability. |
Compared with ADS1115IDGSR and MCP3424-E/SL, the LTC2463IDD#TRPBF uniquely combines differential input, integrated low-drift reference with COMP pin, 60SPS rate, and 200nA sleep-making it optimal for compact, battery-aware, high-stability sensor interfaces where board space and thermal drift are critical constraints.
Availability
LTC2463IDD#TRPBF is available at Aetrix Electronics and suitable for industrial process monitoring, environmental sensor nodes, direct temperature measurement, and embedded ADC upgrades requiring stable component supply across extended temperature ranges.
Supply support for LTC2463IDD#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 LTC2463IDD#TRPBF belongs to ADI's legacy Linear Technology precision ADC family, designed specifically for ultra-low-power, high-accuracy sensor signal acquisition in space- and energy-constrained embedded systems.
FAQ
What is the operating temperature range for the LTC2463IDD#TRPBF?
The LTC2463IDD#TRPBF is rated for –40°C to +85°C operation (I-grade). This is confirmed in the Absolute Maximum Ratings and Order Information tables of the official datasheet, and applies specifically to the "IDD" suffix variant. The device maintains specified performance-including 16-bit no-missing-codes resolution, ±5 ppm/°C reference drift, and 200nA sleep current-across this full industrial temperature range.
Does the LTC2463IDD#TRPBF require external components for basic operation?
No, the LTC2463IDD#TRPBF operates autonomously with only three mandatory external components: a 0.1µF capacitor on REFOUT to GND, a 0.1µF capacitor on COMP to GND, and a 10µF + 0.1µF bypass network on VCC. These are explicitly required for reference stability and power integrity per the Pin Functions and Applications Information sections. No external clock, reference, or calibration circuitry is needed.
How does the LTC2463IDD#TRPBF handle input signals below ground?
The LTC2463IDD#TRPBF supports true differential inputs down to –8 LSB below GND (≈ –0.305mV) when VIN– is tied to GND, as verified in Figure 3 and Applications Information. This capability stems from its proprietary input sampling architecture-not from rail-to-rail input stages-and is valid only when the differential input (VIN+ – VIN–) remains within ±1.25V. It does not support inputs beyond that range.
Can the LTC2463IDD#TRPBF be synchronized across multiple devices?
Yes, the LTC2463IDD#TRPBF supports synchronization via the I²C Global Address Call (0xE7). As documented in Figure 7c and Applications Information, issuing a global address call after all devices complete conversion triggers simultaneous new conversions-enabling coherent sampling across distributed sensor nodes without additional hardware timers or GPIO coordination.
What is the conversion time and settling behavior of the LTC2463IDD#TRPBF?
The LTC2463IDD#TRPBF has a nominal conversion time of 16.6 ms (range: 13–23 ms), with no latency or filter settling delay. As stated in the Applications Information section, "data output has no latency, filter settling delay or redundant results"-each 16-bit output corresponds deterministically to the most recently completed conversion cycle, making it ideal for time-critical multiplexed acquisition.
LTC2463IDD#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:
- -40°C ~ 85°C
- Supplier Device Package:
- 12-DFN (3x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2463IDD#TRPBF FAQ
1.How can I place an order for LTC2463IDD#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2463IDD#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 LTC2463IDD#TRPBF reliable?
The price and inventory of LTC2463IDD#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2463IDD#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2463IDD#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2463IDD#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2463IDD#TRPBF?
LTC2463IDD#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2463IDD#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 LTC2463IDD#TRPBF?
For technical support, including LTC2463IDD#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2463IDD#TRPBF requirements.
6.How does Aetrix verify that LTC2463IDD#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2463IDD#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 LTC2463IDD#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2463IDD#TRPBF?
All LTC2463IDD#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2463IDD#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 LTC2463IDD#TRPBF part is unused and in its original packaging.
Return procedure for LTC2463IDD#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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