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Analog Devices Inc. LTC2313ITS8-14#TRMPBF
- Part No.:
- LTC2313ITS8-14#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
LTC2313ITS8-14#TRMPBF.pdf
- Description:
- IC ADC 14BIT SAR TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:974
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Product details
Overview
LTC2313ITS8-14#TRMPBF from Analog Devices (formerly Linear Technology) is a 14-bit, 2.5 Msps successive approximation register (SAR) analog-to-digital converter in an 8-lead TSOT-23 package. It operates from a single 3V or 5V analog supply, integrates a low-drift (≤20 ppm/°C) internal reference (2.048 V or 4.096 V), and delivers 77 dB SINAD and –85 dB THD at full speed-enabling high-fidelity signal digitization in space-constrained, low-power systems such as portable medical sensors and battery-powered data loggers.
For engineers reviewing the LTC2313ITS8-14#TRMPBF datasheet, LTC2313ITS8-14#TRMPBF pinout, LTC2313ITS8-14#TRMPBF application, or LTC2313ITS8-14#TRMPBF equivalent, key selection considerations include guaranteed no missing codes over temperature, nap/sleep mode power management (≤2 mA / <1 µA), SPI-compatible serial interface with 1.8–5 V OVDD compatibility, and operation across –40°C to +85°C industrial grade range.
Technical Context
The LTC2313ITS8-14#TRMPBF implements a fully integrated SAR architecture with on-chip sample-and-hold, bandgap reference, reference buffer, and timing logic-all optimized for single-supply, low-latency acquisition. Its conversion is triggered by a rising-edge CONV signal, with no cycle latency and fixed 225 ns conversion time followed by automatic entry into nap mode.
It features dual independent supplies: VDD (2.7–3.6 V or 4.75–5.25 V) powers analog circuitry and reference, while OVDD (1.71–5.25 V) sets digital I/O voltage levels-enabling seamless interfacing with 1.8 V, 2.5 V, 3.3 V, or 5 V host processors without level shifters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - guarantees monotonic transfer function and ≥16,384 distinct output codes. |
| Sampling Rate | 2.5 Msps - supports real-time capture of signals up to 1.25 MHz Nyquist bandwidth. |
| SINAD | 77 dB at fIN = 497 kHz, VDD = 5 V - enables >12.5 ENOB for precision measurement applications. |
| Reference Drift | ≤20 ppm/°C - ensures stable full-scale accuracy over –40°C to +85°C without external calibration. |
| Power Consumption | 14 mW at 3 V / 25 mW at 5 V, 2.5 Msps - achieves 10 nJ/conversion efficiency for ultra-low-power designs. |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade reliability in harsh ambient environments. |
| Acquisition Time | 175 ns - defines minimum hold time required for full 14-bit settling after CONV falling edge. |
Pinout & Package
Package: 8-lead plastic TSOT-23 (TS8), 2.9 mm × 1.6 mm × 0.8 mm, exposed pad optional, RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pin 1) | Analog power supply input | Accepts 2.7–3.6 V or 4.75–5.25 V; powers internal reference, SAR core, and sample-and-hold. |
| REF (Pin 2) | Reference input/output | Outputs 2.048 V (at 3 V supply) or 4.096 V (at 5 V supply); may be overdriven externally with ≥50 mV headroom. |
| GND (Pin 3) | Analog ground reference | Must connect directly to solid ground plane; separates analog return path from digital noise sources. |
| AIN (Pin 4) | Analog input | Single-ended, 0 V to VREF range; 13 pF input capacitance in sample mode; requires ≤175 ns acquisition settling. |
| OVDD (Pin 5) | Digital I/O supply | 1.71–5.25 V logic rail; sets SDO output swing and SCK/CONV input thresholds-decoupled from VDD. |
| SDO (Pin 6) | Serial data output | Three-state MSB-first 14-bit stream; enters Hi-Z when CONV = high; no cycle latency; compatible with 1.8–5 V receivers. |
| SCK (Pin 7) | Serial clock input | Accepts up to 90 MHz clock; data valid on falling edge; timing-critical for t4 (9.1 ns) and t7 (1 ns) hold. |
| CONV (Pin 8) | Convert start input | Rising edge initiates conversion; falling edge enables SDO and places S/H in sample mode; controls nap/sleep entry via pulse count. |
Key Features
| Feature | Design Value |
|---|---|
| No missing codes | Guaranteed over full temperature range (–40°C to +85°C) and supply conditions-ensures monotonicity in closed-loop control. |
| Nap mode power-down | Automatically enters after conversion; resumes full performance in <1 conversion cycle (50 ns wake-up); draws only ~2 mA. |
| Sleep mode | Entered via 4× CONV pulses; reduces current to <1 µA typical; requires 1.1 ms VREF recovery before accurate conversion. |
| Flexible digital interface | OVDD pin enables direct connection to 1.8 V, 2.5 V, 3.3 V, or 5 V logic without level-shifting components or timing penalties. |
| Internal reference buffer | Eliminates need for external reference IC or op-amp buffer; supports 5 mA load; maintains 20 ppm/°C drift with 2.2 µF bypass. |
Applications
| Portable Medical Sensors | Industrial Process Monitoring |
|---|---|
|
Use Scenario: Real-time acquisition of ECG, EEG, or pressure transducer outputs in handheld diagnostic devices. IC Role / Device Role / Timing Role: High-speed, low-noise ADC capturing analog biosignals with minimal power draw and no missing codes over temperature. Use Value: Enables 14-bit resolution at 2.5 Msps within strict 25 mW thermal envelope and 8-lead TSOT footprint-critical for compact, battery-operated form factors. |
Use Scenario: Continuous voltage/current monitoring in PLC analog input modules with wide ambient temperature variation. IC Role / Device Role / Timing Role: Industrial-grade SAR ADC delivering stable full-scale accuracy (±5 LSB FS error) from –40°C to +85°C with integrated reference. Use Value: Eliminates external reference and trimming, reduces BOM count, and guarantees monotonicity-lowering system calibration cost and field failure risk. |
| Battery-Powered Data Loggers | Automotive Sensor Interfaces |
|
Use Scenario: Long-duration environmental sensing (temperature, humidity, vibration) using intermittent sampling to extend battery life. IC Role / Device Role / Timing Role: Low-power ADC with configurable nap/sleep modes, enabling microamp-level quiescent current during idle periods. Use Value: Achieves <1 µA sleep current and fast wake-up (<1.1 ms), allowing multi-year operation on coin-cell batteries without sacrificing 14-bit fidelity. |
Use Scenario: Digitizing engine knock, exhaust gas oxygen, or cabin air quality sensor outputs in automotive ECUs. IC Role / Device Role / Timing Role: AEC-Q200–capable ADC (via industrial temp grade) with robust ESD tolerance and supply-independent OVDD I/O. Use Value: Supports mixed-voltage domains (e.g., 5 V sensor front-end + 3.3 V MCU) without level shifters-reducing layout complexity and EMC susceptibility. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8860IDRCT | 16-bit, 1 Msps, 2.5 V supply only, no internal reference, SPI interface with busy indicator. | Higher resolution but lower speed; requires external reference and level-shifting for 1.8 V hosts. | Select when DC accuracy and ENOB >14.5 are prioritized over throughput and integration. |
| MAX11198ETE+ | 14-bit, 2 Msps, 2.7–3.6 V supply, internal 2.048 V reference, 10-pin TDFN, –40°C to +105°C. | Lower max sampling rate; wider temperature range; smaller package but no 5 V operation or OVDD flexibility. | Select when operating above +85°C is required and 5 V supply compatibility is unnecessary. |
Compared with ADS8860IDRCT and MAX11198ETE+, the LTC2313ITS8-14#TRMPBF uniquely combines 2.5 Msps speed, dual 3 V/5 V supply support, integrated low-drift reference, and 1.8–5 V OVDD I/O-making it optimal for compact, multi-rail embedded systems demanding both speed and power efficiency.
Availability
LTC2313ITS8-14#TRMPBF is available at Aetrix Electronics and suitable for industrial process monitoring, portable medical instrumentation, and battery-powered data acquisition requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature grade performance.
Supply support for LTC2313ITS8-14#TRMPBF 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 LTC2313-14 belongs to ADI's precision high-speed SAR ADC product line, designed specifically for applications demanding low power, small size, and excellent AC performance without external reference or support components.
FAQ
What is the maximum sampling frequency of the LTC2313ITS8-14#TRMPBF?
The LTC2313ITS8-14#TRMPBF supports a maximum sampling frequency of 2.5 Msps, with guaranteed timing performance across its full operating temperature range (–40°C to +85°C). This allows continuous digitization of signals up to 1.25 MHz without aliasing, and is maintained regardless of supply voltage (3 V or 5 V) or OVDD level (1.8–5 V).
Does the LTC2313ITS8-14#TRMPBF require an external reference?
No, the LTC2313ITS8-14#TRMPBF integrates a precision internal reference that outputs 2.048 V when powered from 2.7–3.6 V, or 4.096 V when powered from 4.75–5.25 V. The reference features ≤20 ppm/°C drift and is buffered to drive external capacitive loads-eliminating the need for external reference ICs or op-amps in most applications.
How does the nap mode function in the LTC2313ITS8-14#TRMPBF?
The LTC2313ITS8-14#TRMPBF automatically enters nap mode after each conversion completes, reducing supply current to ~2 mA while preserving reference and bias circuitry. Wake-up occurs in under 50 ns upon the next CONV rising edge, enabling immediate acquisition-ideal for burst-mode sampling with minimal latency and power overhead.
Can the LTC2313ITS8-14#TRMPBF interface directly with a 1.8 V microcontroller?
Yes-the LTC2313ITS8-14#TRMPBF supports 1.8 V digital I/O via its dedicated OVDD pin (1.71–5.25 V range). When OVDD = 1.8 V, SDO output swing and SCK/CONV input thresholds are fully compatible with 1.8 V logic families, eliminating level shifters and simplifying interconnect in mixed-voltage systems.
What is the analog input voltage range of the LTC2313ITS8-14#TRMPBF?
The analog input (AIN) of the LTC2313ITS8-14#TRMPBF is single-ended with respect to GND and accepts 0 V to VREF, where VREF is either 2.048 V (at 3 V supply) or 4.096 V (at 5 V supply). Input leakage is ±1 µA, and input capacitance is 13 pF in sample mode-requiring ≤175 ns acquisition time for full 14-bit accuracy.
LTC2313ITS8-14#TRMPBF 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:
- 14
- Sampling Rate (Per Second):
- 2.5M
- Number of Inputs:
- 1
- Input Type:
- Single Ended
- Data Interface:
- SPI
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- Internal
- Voltage - Supply, Analog:
- 2.7V ~ 3.6V, 5V
- Voltage - Supply, Digital:
- 2.7V ~ 3.6V, 5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- TSOT-23-8
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2313ITS8-14#TRMPBF FAQ
1.How can I place an order for LTC2313ITS8-14#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2313ITS8-14#TRMPBF 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 LTC2313ITS8-14#TRMPBF reliable?
The price and inventory of LTC2313ITS8-14#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2313ITS8-14#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC2313ITS8-14#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2313ITS8-14#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2313ITS8-14#TRMPBF?
LTC2313ITS8-14#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2313ITS8-14#TRMPBF 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 LTC2313ITS8-14#TRMPBF?
For technical support, including LTC2313ITS8-14#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2313ITS8-14#TRMPBF requirements.
6.How does Aetrix verify that LTC2313ITS8-14#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC2313ITS8-14#TRMPBF 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 LTC2313ITS8-14#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC2313ITS8-14#TRMPBF?
All LTC2313ITS8-14#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2313ITS8-14#TRMPBF, 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 LTC2313ITS8-14#TRMPBF part is unused and in its original packaging.
Return procedure for LTC2313ITS8-14#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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