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Analog Devices Inc. LTC2313CTS8-14#TRPBF
- Part No.:
- LTC2313CTS8-14#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
LTC2313CTS8-14#TRPBF.pdf
- Description:
- IC ADC 14BIT SAR TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:1,089
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Product details
Overview
LTC2313CTS8-14#TRPBF 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 max) internal reference (2.048 V or 4.096 V), and delivers 77 dB SINAD and –85 dB THD at full speed-enabling high-fidelity data acquisition in space-constrained, low-power systems such as handheld medical instruments and battery-powered test equipment.
For engineers reviewing the LTC2313CTS8-14#TRPBF datasheet, LTC2313CTS8-14#TRPBF pinout, LTC2313CTS8-14#TRPBF application, or LTC2313CTS8-14#TRPBF equivalent, key selection considerations include its no-cycle-latency SPI-compatible serial interface, nap/sleep power management modes (<1 µA sleep current), 1.8V–5V digital I/O supply (OVDD), and guaranteed 14-bit no-missing-codes performance across –40°C to 125°C for industrial and automotive environments.
Technical Context
The LTC2313CTS8-14#TRPBF implements a SAR architecture with integrated reference buffer and internal timing oscillator. Its conversion cycle comprises 175 ns acquisition time followed by 225 ns conversion time, achieving 400 ns minimum throughput-enabling deterministic real-time sampling without pipeline latency.
It features dual-supply isolation: VDD powers analog circuitry (2.7–3.6 V or 4.75–5.25 V), while OVDD independently supplies digital I/O (1.71–5.25 V), allowing seamless interfacing with 1.8 V logic controllers or 5 V FPGAs. Reference output is auto-configured to 2.048 V (at 3 V supply) or 4.096 V (at 5 V supply), with <5 mV line regulation and 7–20 ppm/°C drift.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit with guaranteed no missing codes-ensures monotonic transfer function and eliminates code gaps in closed-loop control or precision measurement. |
| Sampling Rate | 2.5 Msps maximum-supports Nyquist-limited bandwidth up to 1.25 MHz for RF front-end digitization or ultrasound signal capture. |
| SINAD / SNR | 77 dB / 77.5 dB at fIN = 497 kHz and VDD = 5 V-enables >12.5 ENOB for high-fidelity sensor readout in vibration monitoring or audio test equipment. |
| THD | –85 dB (first five harmonics)-meets dynamic range requirements for medical imaging front-ends where harmonic distortion must not mask low-amplitude tissue echoes. |
| Reference Drift | 20 ppm/°C max-maintains ±0.025% full-scale accuracy over –40°C to 125°C, eliminating need for external calibration in automotive engine control units. |
| Power Consumption | 25 mW at 2.5 Msps and 5 V VDD; <1 µA in sleep mode-enables multi-hour operation on coin-cell batteries in portable diagnostic devices. |
| Interface | SPI-compatible 3-wire serial (CONV, SCK, SDO); MSB-first, no cycle latency-simplifies firmware integration with ARM Cortex-M microcontrollers and reduces DMA overhead. |
Pinout & Package
Package: 8-lead TSOT-23 (0.65 mm pitch), RoHS-compliant, moisture-sensitive level 1. Thermal resistance θJA = 195°C/W. Requires 2.2 µF ceramic bypass capacitors on VDD, REF, and OVDD pins per datasheet layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pin 1) | Analog supply input | Accepts 2.7–3.6 V or 4.75–5.25 V; powers SAR core, reference, and sample-and-hold-must be decoupled locally to suppress switching noise coupling into analog path. |
| REF (Pin 2) | Reference input/output | Outputs 2.048 V (3 V supply) or 4.096 V (5 V supply); can be overdriven externally; requires 2.2 µF low-ESR ceramic capacitor for stability and low-noise performance. |
| GND (Pin 3) | Analog ground | Primary return path for analog circuitry; must connect directly to solid ground plane-separate from digital ground to minimize PSRR degradation. |
| AIN (Pin 4) | Analog input | Single-ended, 0 V to VREF range; 13 pF input capacitance in sample mode; driven best by low-output-impedance op amps (e.g., LT6230) to meet 175 ns acquisition window. |
| OVDD (Pin 5) | Digital I/O supply | 1.71–5.25 V independent supply for SDO, SCK, CONV logic levels-enables direct interfacing with 1.8 V ASICs or 5 V PLDs without level shifters. |
| SDO (Pin 6) | Serial data output | Three-state output enabled by falling edge of CONV; outputs 14-bit result MSB-first with no latency; high-impedance when CONV = high-reduces bus contention in multi-device systems. |
| SCK (Pin 7) | Serial clock input | Accepts up to 90 MHz clock; data valid on falling edge; timing-critical path requiring controlled impedance routing to avoid jitter-induced SNR loss. |
| CONV (Pin 8) | Convert start input | Active-high edge-triggered; initiates acquisition and conversion; controls SDO enable/disable and nap/sleep entry-pulse width ≥10 ns required for reliable wake-up from low-power states. |
Key Features
| Feature | Design Value |
|---|---|
| No cycle latency serial output | Conversion result appears on SDO immediately after CONV falling edge-eliminates pipeline delay for real-time trigger-and-capture applications like oscilloscope front-ends. |
| Auto-configuring internal reference | 2.048 V at 3 V supply / 4.096 V at 5 V supply-removes external reference IC and trimming components, reducing BOM count and PCB area by >30% in portable designs. |
| Nap mode with sub-1-conversion wake-up | 2 mA typical supply current; resumes accurate conversion within one tACQ (175 ns)-ideal for burst-mode acquisition in IoT edge nodes with intermittent sensor polling. |
| Sleep mode with <1 µA quiescent current | Full shutdown of bandgap and reference buffer; 1.1 ms wake-up time due to 2.2 µF REF capacitor recharge-extends battery life in always-on monitoring systems. |
| Wide OVDD voltage range (1.71–5.25 V) | Supports direct connection to 1.8 V, 2.5 V, 3.3 V, or 5 V logic families-avoids level-shifter ICs and associated signal integrity risks in mixed-voltage FPGA interfaces. |
Applications
| Medical Ultrasound Front-End | Automotive Engine Control Unit |
|---|---|
|
Use Scenario: Digitizing echo signals from piezoelectric transducers operating at 1–5 MHz center frequency in portable ultrasound probes. IC Role / Device Role / Timing Role: High-speed, low-distortion ADC capturing time-of-flight data with precise amplitude fidelity for beamforming and image reconstruction. Use Value: 77.5 dB SNR and –85 dB THD preserve weak tissue boundary reflections; 2.5 Msps rate supports 12-bit effective resolution at 1.25 MHz bandwidth for real-time B-mode imaging. |
Use Scenario: Sampling crankshaft position, knock sensor, and wideband oxygen sensor outputs in Tier-1 ECU modules under under-hood thermal stress. IC Role / Device Role / Timing Role: Precision analog front-end ADC with guaranteed operation from –40°C to 125°C and low-drift reference for closed-loop fuel injection timing. Use Value: 20 ppm/°C reference drift ensures <±0.1% full-scale error over temperature-critical for maintaining stoichiometric air-fuel ratio control across ambient extremes. |
| Handheld Test & Measurement | Battery-Powered Data Logger |
|
Use Scenario: Portable oscilloscope or spectrum analyzer capturing transient waveforms in field service diagnostics. IC Role / Device Role / Timing Role: Low-power, high-SNR ADC enabling >100 kSamples/s continuous streaming over USB or Bluetooth LE with minimal thermal rise. Use Value: 25 mW at 2.5 Msps and nap-mode power gating extend runtime on 1,000 mAh Li-ion packs to >8 hours during intermittent capture sessions. |
Use Scenario: Remote environmental sensor node logging temperature, pressure, and gas concentration over multi-week intervals on AA batteries. IC Role / Device Role / Timing Role: Ultra-low-quiescent ADC entering <1 µA sleep mode between scheduled 1-second sampling intervals. Use Value: Sleep current <1 µA reduces average system power to <10 µA-enabling >2-year battery life without maintenance or solar charging. |
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-requires external 2.5 V reference and level-shifting for 3.3 V/5 V hosts. | Better DC accuracy (±0.5 LSB INL) but lower speed; suited for precision DC measurements (e.g., weigh scales), not RF or ultrasound. | Select when ENOB >13.5 bits at <1 Msps is prioritized over speed and system integration simplicity. |
| MAX11198ETE+ | 14-bit, 2 Msps, 2.7–3.6 V supply, integrated 2.048 V reference, SPI interface-but no nap/sleep modes; 5.5 mA active current. | Lower power than discrete solutions but lacks ultra-low sleep current; rated only to 85°C ambient. | Select for cost-sensitive industrial sensors where –40°C to 125°C operation and sub-µA sleep are non-critical. |
Compared with ADS8860IDRCT and MAX11198ETE+, the LTC2313CTS8-14#TRPBF uniquely combines 2.5 Msps speed, integrated auto-ranging reference, nap/sleep power states, and extended temperature grade in a 8-lead TSOT-23-making it optimal for compact, battery-aware, high-dynamic-range systems demanding both speed and thermal robustness.
Availability
LTC2313CTS8-14#TRPBF is available at Aetrix Electronics and suitable for medical imaging front-ends, automotive engine control units, and handheld test equipment requiring stable component supply, long-term lifecycle support, and traceable sourcing for ISO 13485 and IATF 16949 certified production.
Supply support for LTC2313CTS8-14#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, formed through the acquisition of Linear Technology in 2017.
The LTC2313CTS8-14#TRPBF belongs to ADI's precision high-speed SAR ADC product line, engineered for applications demanding low power, small footprint, and uncompromised AC performance-including portable instrumentation, industrial automation, and automotive sensing.
FAQ
What is the operating temperature range for the LTC2313CTS8-14#TRPBF?
The LTC2313CTS8-14#TRPBF is specified for 0°C to 70°C operation (Commercial grade). This is confirmed by the "C" suffix in the part number and the order information table listing "0°C to 70°C" for the LTC2313CTS8-14#TRPBF variant. For extended ranges, LTC2313ITS8-14#TRPBF (–40°C to 85°C) and LTC2313HTS8-14#TRPBF (–40°C to 125°C) are available.
Does the LTC2313CTS8-14#TRPBF require an external reference?
No, the LTC2313CTS8-14#TRPBF does not require an external reference. It integrates a low-drift (20 ppm/°C max) internal reference that outputs 2.048 V when powered from 3 V or 4.096 V when powered from 5 V. The REF pin is an output by default and must be bypassed with a 2.2 µF ceramic capacitor for stability and noise performance.
How does the nap mode function in the LTC2313CTS8-14#TRPBF?
The LTC2313CTS8-14#TRPBF automatically enters nap mode after each conversion, reducing supply current to ~2 mA. Nap mode retains reference buffer and bandgap bias, enabling wake-up and accurate conversion within one acquisition time (175 ns). It is entered by pulsing CONV twice while holding SCK static, and exited by pulsing SCK once-ideal for burst-mode sampling.
What digital logic levels does the LTC2313CTS8-14#TRPBF support on its interface pins?
The LTC2313CTS8-14#TRPBF supports 1.8 V, 2.5 V, 3 V, and 5 V logic levels via its dedicated OVDD pin (1.71–5.25 V range). SDO output swing, SCK input thresholds, and CONV input thresholds are all referenced to OVDD-not VDD-allowing direct interfacing with mixed-voltage host systems without external level shifters.
Is the LTC2313CTS8-14#TRPBF pin-compatible with other members of the LTC2313 family?
Yes, the LTC2313CTS8-14#TRPBF is pin-compatible with all variants in the LTC2313-14 and LTC2313-12 families offered in the 8-lead TSOT-23 package (e.g., LTC2313CTS8-12#TRPBF). Pin functions, layout, and footprint are identical-enabling design reuse and simplified BOM management across 12-bit and 14-bit performance tiers.
LTC2313CTS8-14#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:
- 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:
- 0°C ~ 70°C
- Supplier Device Package:
- TSOT-23-8
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2313CTS8-14#TRPBF FAQ
1.How can I place an order for LTC2313CTS8-14#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2313CTS8-14#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 LTC2313CTS8-14#TRPBF reliable?
The price and inventory of LTC2313CTS8-14#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2313CTS8-14#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2313CTS8-14#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2313CTS8-14#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2313CTS8-14#TRPBF?
LTC2313CTS8-14#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2313CTS8-14#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 LTC2313CTS8-14#TRPBF?
For technical support, including LTC2313CTS8-14#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2313CTS8-14#TRPBF requirements.
6.How does Aetrix verify that LTC2313CTS8-14#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2313CTS8-14#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 LTC2313CTS8-14#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2313CTS8-14#TRPBF?
All LTC2313CTS8-14#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2313CTS8-14#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 LTC2313CTS8-14#TRPBF part is unused and in its original packaging.
Return procedure for LTC2313CTS8-14#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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