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Analog Devices Inc. LTC2453ITS8#TRPBF
- Part No.:
- LTC2453ITS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
LTC2453ITS8#TRPBF.pdf
- Description:
- IC ADC 16BIT SIG-DELTA TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:2,458
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Product details
Overview
LTC2453ITS8#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, delivering ±2 LSB offset error, 4 LSB full-scale error, and 60 conversions per second in an 8-pin TSOT-23 package. It serves as a precision sensor front-end in low-power embedded monitoring systems requiring high DC accuracy and minimal external components.
For engineers reviewing the LTC2453ITS8#TRPBF datasheet, LTC2453ITS8#TRPBF pinout, LTC2453ITS8#TRPBF application, or LTC2453ITS8#TRPBF equivalent, key selection considerations include its guaranteed no-missing-codes performance, integrated oscillator eliminating external timing components, ultra-low 50 nA average input sampling current, sleep-mode current below 0.2 µA, and differential reference support up to ±(VREF+ − VREF−).
Technical Context
The LTC2453ITS8#TRPBF employs a proprietary delta-sigma modulator core with decimating sinc filter and continuous internal offset/full-scale calibration-transparent to the user and effective across –40°C to +85°C. Its single-cycle conversion architecture delivers deterministic 13–23 ms settling time with zero latency for multiplexed inputs.
It uses a hard-wired I²C slave address (0010100), supports Standard- and Fast-Mode (up to 400 kHz), and features open-drain SDA with external 1.7 kΩ pull-up. The device enters sleep mode automatically after conversion unless addressed, reducing supply current from 800 µA to <0.2 µA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit signed output (0–65535 decimal), no missing codes guaranteed |
| INL | ±2 LSB max over temperature - ensures monotonicity and linearity for precision measurement |
| Offset Error | ±2 LSB max - enables accurate zero-point referencing without factory trimming |
| Full-Scale Error | ±4 LSB max - supports direct ratiometric sensing with stable reference sources |
| Conversion Rate | 60 sps - balances speed and noise rejection for industrial sensor interfaces |
| Supply Current | 800 µA active / <0.2 µA sleep - enables battery-powered operation with >1-year runtime at 1 Hz read rate |
| Input Sampling Current | 50 nA average - allows direct RC filtering (e.g., 1 kΩ + 0.1 µF) with <1 LSB error |
| Differential Input Range | ±(VREF+ − VREF−), up to ±5 V - supports rail-to-rail input with external reference flexibility |
Pinout & Package
Package: 8-lead plastic TSOT-23 (3 mm × 3 mm), exposed pad not present (DFN variant only). Operating temperature range: –40°C to +85°C (I-grade).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Ground reference | Low-impedance connection point for analog/digital return; must tie to system ground plane |
| REF– (Pin 2) | Negative reference input | Differential reference lower bound; accepts 0 V to (VCC − 2.5 V); sets common-mode baseline |
| REF+ (Pin 3) | Positive reference input | Differential reference upper bound; accepts (VREF– + 2.5 V) to VCC; defines full-scale span |
| VCC (Pin 4) | Supply voltage | 2.7 V to 5.5 V analog/digital power; requires 10 µF + 0.1 µF ceramic bypassing at pin |
| IN– (Pin 5) | Negative analog input | Differential input node; exhibits <10 nA DC leakage and 0.35 pF sampling capacitance |
| IN+ (Pin 6) | Positive analog input | Differential input node; matched to IN– for common-mode rejection and low crosstalk |
| SCL (Pin 7) | I²C clock input | Slave-only interface clock; accepts 0–400 kHz; rising edge latches data, falling edge outputs |
| SDA (Pin 8) | I²C bidirectional data | Open-drain output during read; requires external 1.7 kΩ pull-up to VCC; high-impedance otherwise |
Key Features
| Feature | Design Value |
|---|---|
| Integrated oscillator | Eliminates all external timing components - reduces BOM count and layout sensitivity |
| Auto shutdown after conversion | Reduces average power to <50 µW at 1 Hz read rate from 2.7 V supply |
| Proprietary input sampling scheme | Lowers average input current to 50 nA - enables direct RC antialiasing without buffer amplifiers |
| Continuous internal calibration | Maintains ±2 LSB offset and ±4 LSB full-scale accuracy over temperature and time without user intervention |
| Negligible inter-input leakage | <10 nA between IN+ and IN– - preserves signal integrity in high-impedance differential sensor bridges |
| No latency in multiplexed operation | Single-cycle settling enables true time-division multiplexing of multiple sensors without delay compensation |
Applications
| System Monitoring | Environmental Monitoring |
|---|---|
Use Scenario: Real-time tracking of supply rail voltages, temperature, and current in industrial PLCs and edge gateways. IC Role / Device Role / Timing Role: Precision differential ADC front-end acquiring slow-varying DC signals from shunt resistors and thermistors. Use Value: Delivers 16-bit resolution with no missing codes and <1 LSB transition noise, enabling detection of sub-millivolt drifts in 12-bit-equivalent systems. |
Use Scenario: Battery-powered air quality nodes measuring CO₂, humidity, and particulate matter via analog sensor outputs. IC Role / Device Role / Timing Role: Low-power sensor digitizer operating in burst-read mode with automatic sleep between samples. Use Value: 0.2 µA sleep current extends coin-cell life beyond 2 years at 1 sample/minute; integrated calibration avoids field recalibration. |
| Direct Temperature Measurements | Industrial Process Control |
Use Scenario: Cold-junction compensation and RTD/thermocouple signal conditioning in HVAC and instrumentation transmitters. IC Role / Device Role / Timing Role: Differential input stage rejecting common-mode noise from long sensor leads in noisy plant environments. Use Value: ±2 LSB INL and negligible inter-input leakage ensure <0.1°C repeatability in 4-wire RTD measurements without guard traces. |
Use Scenario: Analog input modules in distributed control systems digitizing 4–20 mA loop signals and strain gauge outputs. IC Role / Device Role / Timing Role: High-accuracy, low-drift ADC with ratiometric reference support for current-loop receiver circuits. Use Value: Full-scale error ≤±4 LSB and 80 dB PSRR allow direct use of loop-supply-derived references without dedicated voltage references. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit differential ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS1115IDGSR | 4-channel, programmable gain amplifier (PGA) integrated; 860 µA active current; no internal oscillator (requires external clock or MCU timing) | Supports multi-channel scanning and gain scaling; less suitable for ultra-low-power sleep-critical designs | Prefer when channel count >1 or PGA functionality required; avoid if minimizing external components is critical |
| MCP3424-E/ST | 4-channel, 18-bit resolution; 150 µA active current; I²C address pins configurable; no auto-sleep mode | Higher resolution but slower (15 sps at 18-bit); lacks automatic power-down - requires explicit command sequencing | Choose for higher precision where speed is secondary; not recommended for battery-constrained deployments |
Compared with ADS1115IDGSR and MCP3424-E/ST, the LTC2453ITS8#TRPBF uniquely combines guaranteed no-missing-codes 16-bit performance, autonomous sleep entry, and zero-external-component oscillator - making it optimal for space- and power-constrained single-channel sensor nodes where simplicity and long-term stability are prioritized over channel count or ultra-high resolution.
Availability
LTC2453ITS8#TRPBF is available at Aetrix Electronics and suitable for industrial process control, environmental monitoring, and embedded system monitoring requiring stable component supply, extended temperature operation (–40°C to +85°C), and long-lifecycle availability.
Supply support for LTC2453ITS8#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 semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC2453ITS8#TRPBF belongs to ADI's ultra-low-power precision delta-sigma ADC product line, designed specifically for battery-operated and space-constrained sensor interfaces demanding high DC accuracy without external timing or calibration circuitry.
FAQ
What is the operating temperature range for the LTC2453ITS8#TRPBF?
The LTC2453ITS8#TRPBF is rated for –40°C to +85°C (I-grade), validated across this full range for all key specifications including offset error, full-scale error, and INL. This makes the LTC2453ITS8#TRPBF suitable for deployment in uncontrolled industrial enclosures and outdoor environmental sensing nodes without thermal derating.
Does the LTC2453ITS8#TRPBF require external clock components?
No - the LTC2453ITS8#TRPBF integrates a precision oscillator that eliminates all external timing components. This oscillator drives the delta-sigma modulator and I²C interface timing internally, simplifying PCB layout and improving reliability in vibration-prone or high-reliability applications where crystal aging or solder joint fatigue could affect timing stability.
How does the LTC2453ITS8#TRPBF achieve ultra-low input sampling current?
The LTC2453ITS8#TRPBF uses a proprietary switched-capacitor sampling architecture that reduces average input current to 50 nA - several orders of magnitude lower than conventional delta-sigma ADCs. This enables direct interfacing with high-impedance sensors and simple RC filters (e.g., 1 kΩ + 0.1 µF) without buffer amplifiers while maintaining <1 LSB error, as confirmed in Figure 10 of the LTC2453ITS8#TRPBF datasheet.
Can the LTC2453ITS8#TRPBF operate with a single-ended reference?
Yes - although optimized for differential reference (REF+ and REF–), the LTC2453ITS8#TRPBF supports single-ended configurations: tie REF– to GND and REF+ to VCC (or a stable reference voltage ≥2.5 V). In this mode, the differential input range becomes 0 V to VREF+, preserving full 16-bit resolution and ratiometric accuracy relative to the chosen reference.
What is the I²C address of the LTC2453ITS8#TRPBF?
The LTC2453ITS8#TRPBF has a fixed, hard-wired I²C slave address of 0010100 (0x24 in 7-bit format). It operates only as a slave device and does not support address pin configuration. During communication, it responds to read requests (R=1) with a 16-bit signed output stream beginning with the MSB (sign bit) on the falling edge of SCL.
LTC2453ITS8#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:
- -40°C ~ 85°C
- Supplier Device Package:
- TSOT-23-8
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2453ITS8#TRPBF FAQ
1.How can I place an order for LTC2453ITS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2453ITS8#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 LTC2453ITS8#TRPBF reliable?
The price and inventory of LTC2453ITS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2453ITS8#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2453ITS8#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2453ITS8#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2453ITS8#TRPBF?
LTC2453ITS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2453ITS8#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 LTC2453ITS8#TRPBF?
For technical support, including LTC2453ITS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2453ITS8#TRPBF requirements.
6.How does Aetrix verify that LTC2453ITS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2453ITS8#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 LTC2453ITS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2453ITS8#TRPBF?
All LTC2453ITS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2453ITS8#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 LTC2453ITS8#TRPBF part is unused and in its original packaging.
Return procedure for LTC2453ITS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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