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Analog Devices Inc. LTC2365ITS8#TRPBF
- Part No.:
- LTC2365ITS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
LTC2365ITS8#TRPBF.pdf
- Description:
- IC ADC 12BIT SAR TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:3,127
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Product details
Overview
LTC2365ITS8#TRPBF from Analog Devices (formerly Linear Technology) is a 12-bit, 1 Msps successive-approximation ADC in an 8-lead TSOT-23 package, operating from a single 2.35V–3.6V supply. It delivers 72.8 dB SINAD at 1 Msps, 73 dB SNR, and –86.1 dB THD with no data latency, targeting low-power, high-speed sensor digitization in battery-operated systems.
For engineers reviewing the LTC2365ITS8#TRPBF datasheet, LTC2365ITS8#TRPBF pinout, LTC2365ITS8#TRPBF application, or LTC2365ITS8#TRPBF equivalent, key selection criteria include guaranteed –40°C to +85°C operation, dedicated VREF and OVDD pins for flexible analog/digital voltage scaling, and SPI/MICROWIRE-compatible serial interface with sleep mode (0.1 µA).
Technical Context
The LTC2365ITS8#TRPBF uses an internal switched-capacitor sample-and-hold with aperture jitter of 0.3 ns and acquisition time of 181.5 ns, enabling accurate undersampling of input signals up to 2.5 MHz full-linear bandwidth. Its 12-bit conversion core supports 14- or 16-cycle SCK timing, with CS-controlled start and MSB-first serial output framing.
Unlike the 3 Msps LTC2366 variant, the LTC2365ITS8#TRPBF is optimized for 1 Msps throughput using ≤16 MHz SCK, achieving 6 mW static power dissipation at 3 V. The TS8 package provides independent VREF (1.4 V to VDD) and OVDD (1 V to VDD) rails, allowing direct interfacing with 1.8 V logic while maintaining 342 µV LSB resolution.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit with no missing codes - guarantees monotonicity and full-scale linearity for precision measurement. |
| Sampling Rate | 1 Msps maximum - enables real-time capture of signals up to 500 kHz Nyquist bandwidth. |
| SINAD | 72.8 dB at 1 MHz input - supports >11.8 effective bits for high-fidelity signal reconstruction. |
| Power Consumption | 2 mA typical at 3 V - yields only 6 mW operational power, critical for portable instrumentation. |
| Supply Range | VDD: 2.35 V–3.6 V; VREF: 1.4 V–VDD; OVDD: 1 V–VDD - allows mixed-voltage system integration without level shifters. |
| Temperature Range | –40°C to +85°C - qualified for industrial and automotive under-hood environments. |
| Sleep Current | 0.1 µA typical - enables microamp-level standby for duty-cycled sensing nodes. |
Pinout & Package
Package: 8-lead plastic TSOT-23 (3 mm × 1.7 mm × 0.8 mm), RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pin 1) | Positive analog supply | Primary power rail (2.35 V–3.6 V); defines analog ground reference and bypassed with 10 µF ceramic capacitor. |
| VREF (Pin 2) | External reference input | Defines full-scale range (0 V to VREF); supports down to 1.4 V for high-resolution low-voltage sensing. |
| GND (Pin 3) | Analog ground | Low-impedance return path for analog circuitry; must connect directly to solid ground plane. |
| AIN (Pin 4) | Analog input | Single-ended input referenced to GND; accepts 0 V to VREF with ±1 µA leakage and 4 pF capacitance. |
| OVDD (Pin 5) | Digital output supply | Controls SDO output swing (1 V–VDD); enables interoperability with 1.8 V/2.5 V/3 V digital systems. |
| SDO (Pin 6) | Serial data output | Three-state MSB-first output; transmits two leading zeros, 12-bit result, and two trailing zeros on SCK falling edge. |
| SCK (Pin 7) | Serial clock input | Edge-triggered clock (≤16 MHz); falling edge clocks data out and controls conversion timing. |
| CS (Pin 8) | Chip select | Active-low control; falling edge initiates conversion and enables SDO; rising edge terminates transfer. |
Key Features
| Feature | Design Value |
|---|---|
| No data latency | Conversion result available immediately after final SCK edge - eliminates pipeline delay in closed-loop control. |
| Flexible reference architecture | VREF pin decouples analog full-scale from VDD - enables precise low-voltage sensor interfacing without gain stages. |
| Independent digital I/O supply | OVDD pin isolates SDO voltage domain - permits direct connection to lower-voltage FPGAs or MCUs without external level translators. |
| Ultra-low sleep current | 0.1 µA typical quiescent draw in sleep mode - extends battery life in intermittent-sampling applications like IoT sensors. |
| High dynamic range | 72.8 dB SINAD and 73 dB SNR at 1 Msps - preserves signal fidelity for medical and test equipment requiring >11 ENOB. |
Applications
| Portable Data Loggers | Industrial Sensor Interfaces |
|---|---|
Use Scenario: Battery-powered environmental monitors capturing temperature, pressure, and humidity at 1 ksps intervals over multi-day deployments. IC Role / Device Role / Timing Role: Primary analog front-end ADC performing single-ended sensor digitization with minimal external components. Use Value: 2 mA active current and 0.1 µA sleep draw extend coin-cell lifetime beyond 2 years; 1.4 V minimum VREF supports direct connection to low-output MEMS sensors. | Use Scenario: DIN-rail mounted PLC analog input modules conditioning 4–20 mA loop signals in factory automation. IC Role / Device Role / Timing Role: High-accuracy, isolated channel ADC with configurable full-scale range for universal analog input scaling. Use Value: VREF and OVDD independence allows simultaneous 3.3 V analog conditioning and 1.8 V FPGA interfacing; –40°C to +85°C rating ensures reliability in uncontrolled cabinets. |
| Medical Point-of-Care Devices | Automotive Diagnostic Tools |
Use Scenario: Handheld ECG and pulse oximetry units requiring low-noise, low-power signal acquisition near patient. IC Role / Device Role / Timing Role: Front-end ADC digitizing amplified biopotential signals with high SNR and minimal thermal drift. Use Value: 73 dB SNR and 0.3 ns aperture jitter preserve waveform morphology; TSOT-23 footprint minimizes board area in space-constrained handheld enclosures. | Use Scenario: OBD-II scan tools sampling vehicle CAN bus auxiliary analog signals (coolant temp, throttle position) during diagnostics. IC Role / Device Role / Timing Role: Ruggedized ADC handling noisy automotive electrical environments with transient-tolerant input structure. Use Value: Absolute max rating of –0.3 V to (VDD + 0.3 V) on AIN prevents latch-up during load-dump events; 85°C ambient rating covers under-dash mounting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7822U | 12-bit, 200 ksps, 2.7–5.25 V supply, no dedicated VREF/OVDD pins | Limited to single-supply 3.3 V/5 V systems; lacks independent reference and output supply rails | Select when cost sensitivity outweighs need for flexible voltage scaling and higher speed. |
| MAX11166ETE+ | 12-bit, 1 Msps, 2.7–3.6 V supply, integrated reference, no OVDD pin | Fixed 2.048 V internal reference; output swing tied to VDD - requires level-shifting for 1.8 V logic | Choose for simplified BOM where external reference buffering is undesirable and digital I/O voltage matches VDD. |
Compared with ADS7822U and MAX11166ETE+, the LTC2365ITS8#TRPBF uniquely supports independent VREF (1.4 V–VDD) and OVDD (1 V–VDD) rails, enabling true mixed-voltage operation and direct low-voltage sensor interfacing without gain stages or level shifters - critical for compact, battery-efficient designs.
Availability
LTC2365ITS8#TRPBF is available at Aetrix Electronics and suitable for portable data loggers, industrial sensor interfaces, medical point-of-care devices, and automotive diagnostic tools requiring stable component supply across extended temperature ranges.
Supply support for LTC2365ITS8#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 LTC2365ITS8#TRPBF belongs to ADI's legacy Linear Technology precision SAR ADC family, engineered for ultra-low power, high-speed, and wide-temperature operation in space- and energy-constrained embedded systems.
FAQ
What is the maximum sampling rate supported by the LTC2365ITS8#TRPBF?
The LTC2365ITS8#TRPBF supports a maximum sampling rate of 1 Msps, verified across its full –40°C to +85°C operating temperature range. This is achieved using a maximum SCK frequency of 16 MHz with 14- or 16-cycle serial timing. At 1 Msps, the device maintains 72.8 dB SINAD and 73 dB SNR with no data latency, making it suitable for real-time signal capture in portable instrumentation and sensor nodes.
Does the LTC2365ITS8#TRPBF require an external reference voltage?
Yes, the LTC2365ITS8#TRPBF requires an external reference voltage applied to the VREF pin (Pin 2). VREF sets the full-scale input range (0 V to VREF) and can be configured from 1.4 V up to VDD. This architecture decouples reference accuracy from supply regulation, enabling high-precision low-voltage measurements without gain amplification - a key advantage over VDD-referenced ADCs.
How does the OVDD pin on the LTC2365ITS8#TRPBF improve system design flexibility?
The OVDD pin (Pin 5) on the LTC2365ITS8#TRPBF independently powers the SDO output driver, allowing its logic swing to be set between 1 V and VDD. This enables direct interfacing with 1.8 V, 2.5 V, or 3 V digital systems (e.g., FPGAs or low-voltage MCUs) without external level shifters. In contrast, VDD-referenced ADCs force digital I/O compatibility constraints that increase BOM cost and PCB complexity.
What is the guaranteed operating temperature range for the LTC2365ITS8#TRPBF?
The LTC2365ITS8#TRPBF is specified for continuous operation from –40°C to +85°C, denoted by the "I" grade in its part number. All key AC and DC specifications - including SINAD, SNR, THD, INL, DNL, and supply current - are guaranteed across this full industrial temperature range, ensuring reliable performance in demanding environments such as factory floors, automotive under-hood locations, and outdoor monitoring equipment.
Can the LTC2365ITS8#TRPBF operate with a 1.8 V digital supply while using a 3.0 V analog supply?
Yes, the LTC2365ITS8#TRPBF supports split-supply operation: VDD may be set to 3.0 V for analog circuitry while OVDD is set to 1.8 V to drive SDO compatible with 1.8 V logic. VREF can be independently set (e.g., 2.048 V) to optimize resolution for specific sensor outputs. This triple-rail flexibility - VDD, VREF, and OVDD - is explicitly validated in the datasheet and enables optimal noise isolation and voltage-domain partitioning in mixed-signal systems.
LTC2365ITS8#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:
- 12
- Sampling Rate (Per Second):
- 1M
- 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:
- External
- Voltage - Supply, Analog:
- 2.35V ~ 3.6V
- Voltage - Supply, Digital:
- 2.35V ~ 3.6V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- TSOT-23-8
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2365ITS8#TRPBF FAQ
1.How can I place an order for LTC2365ITS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2365ITS8#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 LTC2365ITS8#TRPBF reliable?
The price and inventory of LTC2365ITS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2365ITS8#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2365ITS8#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2365ITS8#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2365ITS8#TRPBF?
LTC2365ITS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2365ITS8#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 LTC2365ITS8#TRPBF?
For technical support, including LTC2365ITS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2365ITS8#TRPBF requirements.
6.How does Aetrix verify that LTC2365ITS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2365ITS8#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 LTC2365ITS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2365ITS8#TRPBF?
All LTC2365ITS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2365ITS8#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 LTC2365ITS8#TRPBF part is unused and in its original packaging.
Return procedure for LTC2365ITS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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