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Analog Devices Inc. LTC2453CTS8#TRPBF
- Part No.:
- LTC2453CTS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
LTC2453CTS8#TRPBF.pdf
- Description:
- IC ADC 16BIT SIG-DELTA TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:250
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Product details
Overview
LTC2453CTS8#TRPBF from Analog Devices (formerly Linear Technology) is a fully differential, 16-bit delta-sigma analog-to-digital converter with I²C interface, operating from 2.7V to 5.5V supply and delivering 60 conversions per second. It features ±(VREF⁺–VREF⁻) differential input range, integrated oscillator, and ultra-low 0.2µA sleep current-ideal for battery-powered environmental monitoring and embedded system sensing.
For engineers reviewing the LTC2453CTS8#TRPBF datasheet, LTC2453CTS8#TRPBF pinout, LTC2453CTS8#TRPBF application, or LTC2453CTS8#TRPBF equivalent, key selection criteria include its TSOT-23-8 package, guaranteed no-missing-codes performance, internal offset/full-scale calibration, 2LSB offset error, and direct compatibility with standard-mode and fast-mode I²C buses up to 400kHz.
Technical Context
The LTC2453CTS8#TRPBF employs a proprietary delta-sigma modulator core with decimating sinc filter and continuous internal offset and full-scale calibration-ensuring accuracy over temperature without user intervention. Its input sampling scheme draws only 50nA average current and exhibits negligible leakage between IN⁺ and IN⁻ pins.
It operates in three deterministic states-CONVERSION, SLEEP, and DATA OUTPUT-with single-cycle settling and automatic sleep entry after conversion. The hard-wired I²C address is 0010100 (0x24), and data output is 16-bit two's complement with sign bit (D15), delivered on falling SCL edges with no latency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with sign, no missing codes-guarantees monotonicity and full dynamic range utilization. |
| Conversion Rate | 60 conversions/second-enables real-time sampling of slow-varying sensor signals without external timing control. |
| Offset Error | ±2 LSB max-translates to ≤±195µV error at 5V reference, supporting high-precision DC measurements. |
| Supply Current | 800 µA during conversion, 0.2 µA in sleep-enables multi-year operation on coin-cell batteries when read infrequently. |
| I²C Interface | Standard- and fast-mode compatible (≤400 kHz), open-drain SDA with external 1.7kΩ pull-up-integrates seamlessly into existing microcontroller I²C subsystems. |
| Differential Input Range | ±(VREF⁺ – VREF⁻), up to ±5V-supports direct connection to bridge sensors, thermocouples, and industrial transducers without level-shifting. |
| Reference Inputs | REF⁺ and REF⁻ accept common-mode voltages from GND to VCC, with ≥2.5V differential required-allows flexible reference sourcing including VCC/GND tie or precision references like LT6660. |
Pinout & Package
Package: 8-lead plastic TSOT-23 (3mm × 3mm), RoHS-compliant, lead-free finish. Exposed pad not present (DFN variant has exposed pad; TSOT-23 does not).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Ground reference | Primary return path for analog and digital currents; must connect directly to low-impedance PCB ground plane. |
| REF– (Pin 2) | Negative reference input | Defines lower bound of differential reference voltage; supports common-mode range from 0V to (VCC – 2.5V). |
| REF+ (Pin 3) | Positive reference input | Defines upper bound of differential reference voltage; supports common-mode range from (VCC – 2.5V) to VCC. |
| VCC (Pin 4) | Positive supply | 2.7V–5.5V analog/digital supply; requires local 10µF + 0.1µF ceramic decoupling to GND. |
| IN– (Pin 5) | Negative analog input | Differential input node; exhibits <10 nA DC leakage and 0.35 pF sampling capacitance-minimizes loading on high-Z sources. |
| IN+ (Pin 6) | Positive analog input | Differential input node; matched to IN– for common-mode rejection and low input bias current error. |
| SCL (Pin 7) | I²C clock input | Slave-only interface clock; accepts 0–400 kHz; rising edge latches address/data, falling edge clocks out ADC result. |
| SDA (Pin 8) | I²C bidirectional data | Open-drain output during data transfer; requires external pull-up to VCC; high-impedance otherwise. |
Key Features
| Feature | Design Value |
|---|---|
| No-latency multiplexed operation | Single-conversion settling enables true time-division multiplexing across multiple sensors without pipeline delay or redundant reads. |
| Ultra-low input sampling current | 50 nA average draw allows direct RC filtering (e.g., 1kΩ + 0.1µF) with <1 LSB error-eliminates need for op-amp buffers in many applications. |
| Auto-calibrating architecture | Continuous internal offset and full-scale calibration runs transparently every conversion-maintains accuracy across –40°C to 85°C without firmware overhead. |
| Overrange/underrange capability | Typically ±31 LSB beyond full-scale-enables robust digitization of signals slightly outside VREF bounds (e.g., sub-ground thermocouple outputs). |
| Integrated oscillator | No external crystal or R/C components required-reduces BOM count, PCB area, and startup timing uncertainty. |
Applications
| System Monitoring | Environmental Monitoring |
|---|---|
Use Scenario: Real-time tracking of supply rail voltages, temperature, and current in network edge devices and IoT gateways. IC Role / Device Role / Timing Role: Primary ADC for analog telemetry acquisition; interfaces directly to MCU via I²C with minimal GPIO usage. Use Value: 16-bit resolution and auto-calibration ensure long-term stability of voltage/current readings without periodic recalibration. |
Use Scenario: Low-power air quality and humidity sensing nodes deployed in remote or battery-operated locations. IC Role / Device Role / Timing Role: Differential front-end digitizer for electrochemical gas sensors and capacitive humidity transducers. Use Value: 0.2 µA sleep current extends battery life to >5 years at one reading per minute; low input current avoids sensor polarization. |
| Direct Temperature Measurements | Industrial Process Control |
Use Scenario: Precision cold-junction compensation and thermocouple linearization in portable test equipment. IC Role / Device Role / Timing Role: High-accuracy differential ADC capturing µV-level thermocouple EMF against stable reference. Use Value: ±2 LSB offset error and 80 dB PSRR suppress noise from shared power rails, improving thermocouple measurement fidelity. |
Use Scenario: Analog signal conditioning in programmable logic controller (PLC) input modules for 4–20 mA loop receivers. IC Role / Device Role / Timing Role: Isolated or non-isolated ADC stage converting field sensor outputs to digital for FPGA/MCU processing. Use Value: ±(VREF⁺–VREF⁻) input range and REF+/REF– flexibility support direct connection to industrial-grade references and ratiometric sensor bridges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit differential I²C ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS1115IDGSR | 4-channel mux, programmable gain amplifier (PGA), 860SPS max, 150µA active current | Supports single-ended inputs and variable gain; better for multi-sensor, low-amplitude signal acquisition | Select when PGA flexibility and channel multiplexing outweigh need for lowest sleep current and guaranteed no-missing-codes linearity. |
| MCP3424-E/ST | 4-channel, 18-bit sigma-delta, 3.75SPS–15SPS, 1mA active current, no internal oscillator | Higher resolution but slower; requires external clock; lacks overrange capability and auto-calibration | Select when ultra-high DC precision at low update rates is critical, and system can accommodate external timing and higher power budget. |
Compared with ADS1115IDGSR and MCP3424-E/ST, the LTC2453CTS8#TRPBF delivers superior power efficiency in sleep mode (0.2µA vs ≥1µA), deterministic 60SPS throughput without configuration overhead, and built-in calibration-making it optimal for always-on, maintenance-free sensing where long-term accuracy and minimal firmware interaction are essential.
Availability
LTC2453CTS8#TRPBF is available at Aetrix Electronics and suitable for system monitoring, environmental sensing, and industrial process control requiring stable component supply, long-lifecycle assurance, and RoHS-compliant packaging.
Supply support for LTC2453CTS8#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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.
The LTC2453CTS8#TRPBF belongs to Linear Technology's ultra-low-power delta-sigma ADC family, designed specifically for space-constrained, battery-operated instrumentation and embedded sensing applications demanding precision without complexity.
FAQ
What is the operating temperature range for the LTC2453CTS8#TRPBF?
The LTC2453CTS8#TRPBF is specified for the commercial temperature range of 0°C to 70°C. This grade is indicated by the "C" suffix in the part number and is validated per the Electrical Characteristics table in the official datasheet under full temperature conditions.
Does the LTC2453CTS8#TRPBF require external passive components for basic operation?
No-the LTC2453CTS8#TRPBF integrates an oscillator and requires only two external decoupling capacitors (10µF and 0.1µF ceramic) on VCC–GND. Unlike most delta-sigma ADCs, it needs no external clock, reference, or anti-aliasing filter for functional operation at 60SPS.
How does the LTC2453CTS8#TRPBF handle input signals exceeding the reference voltage range?
The LTC2453CTS8#TRPBF provides typical ±31 LSB overrange/underrange capability. For example, with a 5V reference, it can correctly digitize inputs up to ~1.5mV beyond ±5V before clamping-enabling robust measurement of transient excursions or sensor offsets without saturation.
What is the I²C address of the LTC2453CTS8#TRPBF and is it configurable?
The LTC2453CTS8#TRPBF has a fixed 7-bit I²C address of 0010100 (0x24). This address is hard-wired internally and cannot be modified via pins or registers-ensuring predictable bus behavior in multi-device systems.
Can the LTC2453CTS8#TRPBF be used with a single-ended input configuration?
No-the LTC2453CTS8#TRPBF is strictly a fully differential input ADC. It requires both IN+ and IN– connections and does not support pseudo-differential or single-ended modes. Signal conditioning for single-ended sources must be performed externally using a difference amplifier.
LTC2453CTS8#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-8 Thin, TSOT-23-8
- 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:
- External
- Voltage - Supply, Analog:
- 2.7V ~ 5.5V
- Voltage - Supply, Digital:
- 2.7V ~ 5.5V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- TSOT-23-8
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2453CTS8#TRPBF FAQ
1.How can I place an order for LTC2453CTS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2453CTS8#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 LTC2453CTS8#TRPBF reliable?
The price and inventory of LTC2453CTS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2453CTS8#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2453CTS8#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2453CTS8#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2453CTS8#TRPBF?
LTC2453CTS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2453CTS8#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 LTC2453CTS8#TRPBF?
For technical support, including LTC2453CTS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2453CTS8#TRPBF requirements.
6.How does Aetrix verify that LTC2453CTS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2453CTS8#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 LTC2453CTS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2453CTS8#TRPBF?
All LTC2453CTS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2453CTS8#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 LTC2453CTS8#TRPBF part is unused and in its original packaging.
Return procedure for LTC2453CTS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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