My Inquiry
My Account
Analog Devices Inc. LTC2452ITS8#TRPBF
- Part No.:
- LTC2452ITS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
LTC2452ITS8#TRPBF.pdf
- Description:
- IC ADC 16BIT SIG-DELTA TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:2,614
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC2452ITS8#TRPBF from Analog Devices (formerly Linear Technology) is a fully differential, 16-bit delta-sigma analog-to-digital converter with SPI interface, operating from 2.7V to 5.5V supply, delivering 60 conversions per second and ±VREF differential input range in an 8-lead TSOT-23 package. It features integrated oscillator, no-latency operation, and ultra-low 0.2µA sleep current-ideal for battery-powered environmental monitoring and embedded sensor interfaces.
For engineers reviewing the LTC2452ITS8#TRPBF datasheet, LTC2452ITS8#TRPBF pinout, LTC2452ITS8#TRPBF application, or LTC2452ITS8#TRPBF equivalent, key selection considerations include its guaranteed 16-bit no-missing-codes resolution, 2LSB offset error, internal auto-calibration over temperature, differential input sampling current of only 50nA, and compatibility with 2.5V–5.5V reference voltages up to VCC.
Technical Context
The LTC2452ITS8#TRPBF employs a proprietary delta-sigma modulator with sinc filter decimation and continuous internal offset/full-scale calibration-ensuring accuracy stability across –40°C to +85°C without user intervention. Its conversion time is fixed at 13–23ms (typ. 16.6ms), enabling deterministic timing in multiplexed systems.
It supports both CPOL = 0 and CPOL = 1 SPI modes, operates in three distinct states (CONVERT → SLEEP → DATA OUTPUT), and provides conversion status monitoring via SDO while CS is low and SCK is held high-eliminating need for external timing circuits in status-aware designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with no missing codes-guarantees monotonicity and full dynamic range utilization in precision measurement. |
| INL | ±1 LSB max-enables accurate linear signal reconstruction without post-conversion correction. |
| Offset Error | ±2 LSB max-minimizes zero-point drift in sensor front-ends requiring high DC accuracy. |
| Full-Scale Error | ±4 LSB max-supports calibrated gain matching in multi-channel data acquisition systems. |
| Sampling Rate | 60 sps-sufficient for slow-varying physical parameters (e.g., temperature, pressure, strain) with relaxed anti-aliasing filtering. |
| Sleep Current | <0.2 µA-extends battery life in intermittent-read applications such as wireless sensor nodes. |
| Input Sampling Current | 50 nA average-allows direct connection to high-impedance sources (e.g., thermistors, RTDs) without buffer amplifiers. |
| Reference Range | 2.5 V to VCC-permits flexible scaling from 2.5V references up to full supply rail, simplifying system-level voltage planning. |
Pinout & Package
Package: 8-lead plastic TSOT-23 (0.65mm pitch), 3mm × 1.7mm footprint, exposed pad (GND), rated for –40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCK (Pin 1) | Serial clock input | Synchronizes serial data output; supports idle-high (CPOL=1) and idle-low (CPOL=0) SPI modes. |
| GND (Pin 2) | Ground reference | Main analog/digital ground; exposed pad (Pin 9) must be soldered to PCB ground plane for thermal and noise performance. |
| REF (Pin 3) | Reference voltage input | Sets full-scale differential input range (±VREF); accepts 2.5V–VCC, enabling rail-to-rail scaling. |
| VCC (Pin 4) | Positive supply | 2.7V–5.5V single supply; requires local 10µF + 0.1µF ceramic decoupling for optimal noise immunity. |
| IN– (Pin 5) | Negative differential input | High-impedance, low-leakage (±10 nA) node; negligible current flow between IN+ and IN– ensures common-mode integrity. |
| IN+ (Pin 6) | Positive differential input | Paired with IN–; supports ±VREF differential swing and 31 LSB overrange/underrange capability. |
| CS (Pin 7) | Active-low chip select | Enables SDO output when low; high state places SDO in Hi-Z and triggers sleep mode (<0.2 µA). |
| SDO (Pin 8) | Three-state serial data output | Outputs 16-bit signed binary MSB-first; indicates conversion status (HIGH = in progress, LOW = complete) when CS low and SCK high. |
Key Features
| Feature | Design Value |
|---|---|
| No-latency delta-sigma architecture | One-to-one correspondence between conversion completion and output data-no filter settling delay or redundant samples in multiplexed systems. |
| Proprietary input sampling scheme | Reduces average input current by orders of magnitude vs conventional delta-sigma ADCs, enabling direct RC filter interfacing with <1 LSB error. |
| Continuous internal calibration | Automatic offset and full-scale correction every conversion-maintains accuracy over temperature and time without user firmware overhead. |
| Integrated oscillator | Eliminates external crystal or clock source-reduces BOM count, board area, and startup complexity in space-constrained designs. |
| Differential input with negligible inter-pin leakage | <10 nA DC leakage between IN+ and IN–-preserves signal integrity in high-common-mode-noise industrial environments. |
| Ultra-low power sleep mode | <0.2 µA supply current during idle-critical for energy harvesting and long-life battery applications where wake-up intervals exceed seconds. |
Applications
| Environmental Monitoring | Industrial Process Control |
|---|---|
Use Scenario: Measuring temperature, humidity, or gas concentration using resistive or capacitive sensors in remote, battery-powered field nodes. IC Role / Device Role / Timing Role: Precision 16-bit ADC digitizing low-bandwidth sensor outputs with minimal power consumption and no external clock components. Use Value: Enables >10-year battery life with 60 sps sampling and sub-1 LSB INL-eliminating need for periodic recalibration in unattended deployments. | Use Scenario: Monitoring pressure, flow, or level transducers in PLC I/O modules or distributed control systems. IC Role / Device Role / Timing Role: High-accuracy differential front-end ADC interfacing to 4–20 mA loop receivers or bridge sensors with wide common-mode rejection. Use Value: Delivers stable 16-bit linearity across –40°C to +85°C via on-chip calibration-reducing system-level compensation firmware and improving long-term reliability. |
| Direct Temperature Measurements | Embedded ADC Upgrades |
Use Scenario: Digitizing thermistor or RTD outputs in medical devices, HVAC controllers, or automotive cabin sensors. IC Role / Device Role / Timing Role: Low-input-current ADC accepting ±VREF differential inputs with 31 LSB overrange-accommodating small negative offsets below ground. Use Value: Supports direct connection to 1kΩ thermistors with 1kΩ–0.1µF RC filters yielding <1 LSB error-removing op-amp buffers and associated noise/power penalties. | Use Scenario: Replacing legacy 12-bit or SAR ADCs in existing embedded systems to improve resolution without redesigning layout or firmware timing. IC Role / Device Role / Timing Role: Pin-compatible upgrade path (TSOT-23 footprint) offering 16-bit resolution, SPI interface, and deterministic 16.6ms conversion time. Use Value: Achieves 4× higher effective resolution with identical board space and simplified software integration-no change to MCU SPI peripheral configuration required. |
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, I²C interface, 860 sps max, internal PGA (2–16×), no integrated oscillator | Requires external clock for I²C; better suited for multi-sensor I²C buses but lacks true differential input flexibility | Choose ADS1115IDGSR when system already uses I²C and needs programmable gain; LTC2452ITS8#TRPBF preferred for SPI-based, ultra-low-power, no-PGA applications |
| MCP3424-E/ST | 18-bit, I²C, 15 sps (18-bit), internal reference, no sleep mode, 2.7–5.5V supply | Higher resolution but slower; no sleep current spec <1 µA-unsuitable for battery lifetime-critical use cases | Choose MCP3424-E/ST when absolute 18-bit accuracy outweighs power budget; LTC2452ITS8#TRPBF delivers optimal balance of 16-bit precision, 60 sps, and sub-0.2 µA sleep for portable instrumentation |
Compared with ADS1115IDGSR and MCP3424-E/ST, the LTC2452ITS8#TRPBF uniquely combines SPI simplicity, deterministic latency, integrated oscillator, and industry-leading 0.2 µA sleep current-making it the most suitable choice for compact, low-power, differential-sensing applications demanding guaranteed 16-bit linearity without external timing or gain components.
Availability
LTC2452ITS8#TRPBF is available at Aetrix Electronics and suitable for environmental monitoring, industrial process control, and embedded sensor interface applications requiring stable component supply, extended temperature support (–40°C to +85°C), and long-term production continuity.
Supply support for LTC2452ITS8#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 technologies, serving industrial, automotive, communications, and healthcare markets.
The LTC2452ITS8#TRPBF belongs to Linear's ultra-low-power delta-sigma ADC product line, designed specifically for precision, battery-operated measurement systems where size, power, and ease of integration are critical constraints.
FAQ
What is the operating temperature range of the LTC2452ITS8#TRPBF?
The LTC2452ITS8#TRPBF is specified for operation from –40°C to +85°C (I-grade). This rating is confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables of the official datasheet, and applies to both electrical performance and package reliability under continuous operation within this ambient range.
Does the LTC2452ITS8#TRPBF require an external crystal or clock source?
No, the LTC2452ITS8#TRPBF includes a fully integrated oscillator that requires no external components. This eliminates the need for crystals, resonators, or clock generators-reducing bill-of-materials cost, PCB area, and design complexity while ensuring reliable startup and timing consistency across temperature and voltage.
What is the maximum reference voltage supported by the LTC2452ITS8#TRPBF?
The LTC2452ITS8#TRPBF supports a reference voltage (VREF) from 2.5V up to VCC, with VCC itself rated from 2.7V to 5.5V. Therefore, the maximum usable VREF is 5.5V when VCC = 5.5V. This allows full-rail referencing and simplifies designs using shared supply rails as references.
How does the LTC2452ITS8#TRPBF achieve its ultra-low 0.2 µA sleep current?
The LTC2452ITS8#TRPBF achieves sub-0.2 µA sleep current by placing all internal circuitry-including the delta-sigma modulator, digital logic, and reference buffer-into deep power-down when CS is high. The datasheet confirms this value under "Electrical Characteristics" (ICC Sleep, CS = VCC) and specifies it applies across the full –40°C to +85°C temperature range.
Can the LTC2452ITS8#TRPBF interface directly to high-impedance sensors like thermistors without an op-amp buffer?
Yes-the LTC2452ITS8#TRPBF's proprietary input sampling scheme draws only 50 nA average input current, and its input leakage is ±10 nA. This enables direct connection to high-impedance sources (e.g., 10 kΩ thermistors) with RC filters (e.g., 1 kΩ + 0.1 µF), introducing less than 1 LSB additional error-verified in the Applications Information section of the datasheet.
LTC2452ITS8#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:
- SPI
- 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:
- -
LTC2452ITS8#TRPBF FAQ
1.How can I place an order for LTC2452ITS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2452ITS8#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 LTC2452ITS8#TRPBF reliable?
The price and inventory of LTC2452ITS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2452ITS8#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2452ITS8#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2452ITS8#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2452ITS8#TRPBF?
LTC2452ITS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2452ITS8#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 LTC2452ITS8#TRPBF?
For technical support, including LTC2452ITS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2452ITS8#TRPBF requirements.
6.How does Aetrix verify that LTC2452ITS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2452ITS8#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 LTC2452ITS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2452ITS8#TRPBF?
All LTC2452ITS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2452ITS8#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 LTC2452ITS8#TRPBF part is unused and in its original packaging.
Return procedure for LTC2452ITS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC2452ITS8#TRPBF Tags
-
ADC081C021CIMKX/NOPB
Texas Instruments
-
MCP3021A5T-E/OT
Microchip Technology
-
TLA2024IRUGR
Texas Instruments
-
MCP3221A5T-E/OT
Microchip Technology
-
MCP3221A5T-I/OT
Microchip Technology
-
MCP3221A4T-E/OT
Microchip Technology
-
MCP3221A6T-E/OT
Microchip Technology
-
MCP3221A0T-E/OT
Microchip Technology
-
MCP3221A1T-E/OT
Microchip Technology
-
ADC121S021CIMFX/NOPB
Texas Instruments
-
MCP3001-I/MS
Microchip Technology
-
MCP3001-I/SN
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
