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Analog Devices Inc. LTC2382HMS-16#TRPBF
- Part No.:
- LTC2382HMS-16#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2382HMS-16#TRPBF.pdf
- Description:
- IC ADC 16BIT SAR 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,773
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Product details
Overview
LTC2382HMS-16#TRPBF from Analog Devices (formerly Linear Technology) is a 16-bit, 500ksps successive approximation register (SAR) analog-to-digital converter with fully differential ±2.5V input range, 92dB SNR at 20kHz, ±2LSB INL max, and 6.5mW power consumption at full speed. It operates from a single 2.5V supply and supports SPI-compatible serial interface with daisy-chain mode for multi-ADC systems in high-speed data acquisition.
For engineers reviewing the LTC2382HMS-16#TRPBF datasheet, LTC2382HMS-16#TRPBF pinout, LTC2382HMS-16#TRPBF application, or LTC2382HMS-16#TRPBF equivalent, key selection criteria include guaranteed 16-bit no-missing-codes operation, extended 1.25µs acquisition time enabling low-power driver use, internal conversion clock eliminating external timing constraints, and H-grade temperature rating up to 125°C.
Technical Context
The LTC2382HMS-16#TRPBF implements a proprietary sampling architecture that initiates acquisition of the next sample during the current conversion cycle, delivering 1.25µs acquisition time and eliminating pipeline delay. Its fully differential SAR core uses a 16-bit CDAC and differential comparator referenced to an external 2.5V source, achieving 92dB SNR and –106dB THD at 20kHz.
It features dual digital supplies: VDD (2.375–2.625V) for core logic and OVDD (1.71–5.25V) for I/O compatibility with 1.8V/2.5V/3.3V/5V host interfaces. The device automatically powers down between conversions, reducing idle current to 0.5µA and scaling power dissipation with sampling rate.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees full 65,536-level quantization with no missing codes across temperature. |
| Sampling Rate | 500ksps - enables real-time capture of signals up to 250kHz Nyquist bandwidth. |
| INL (Max) | ±2LSB - ensures monotonicity and ≤0.003% full-scale linearity error over –40°C to +125°C. |
| SNR (Typ) | 92dB at fIN = 20kHz - corresponds to effective resolution of ~15.0 bits under typical conditions. |
| Power @ 500ksps | 6.5mW - enables battery-operated instrumentation with <13µW at 1ksps sampling. |
| Input Range | ±2.5V differential - supports high dynamic range signal digitization without external gain scaling. |
| Acquisition Time | 1.25µs - allows use of low-power, low-bandwidth ADC drivers such as LT6350-H. |
Pinout & Package
Package: 16-lead plastic MSOP (4mm × 5mm), exposed pad not present (DFN variant has exposed GND pad; MSOP does not). Operating temperature range: –40°C to +125°C (H-grade).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CHAIN (1) | Mode selector | High enables daisy-chain serial input (SDI); low enables RDL bus-enable function. |
| VDD (2) | Digital core supply | 2.5V ±62.5mV supply; requires 10µF ceramic bypass to GND for stable conversion timing. |
| GND (3,6,10,16) | Ground reference | Four dedicated ground pins minimize ground bounce and improve PSRR in high-speed operation. |
| IN+, IN– (4,5) | Differential analog inputs | Accept ±2.5V differential signal; input capacitance 45pF in sample mode, requiring low-Z drive or buffer. |
| REF (7,8) | Reference voltage input | 2.4–2.6V external reference; draws up to 495µA at 500ksps; requires 47µF X5R ceramic decoupling. |
| CNV (9) | Convert trigger | Rising edge initiates conversion; high state enables auto power-down between conversions. |
| BUSY (11) | Conversion status | Active-high open-drain output indicating conversion in progress; used for timing synchronization. |
| RDL/SDI (12) | Serial interface control/data | Function depends on CHAIN state: bus enable (low CHAIN) or serial data input (high CHAIN). |
| SCK (13) | Serial clock input | Supports up to 100MHz SCK (10ns period); timing critical for reliable 16-bit data capture. |
| SDO (14) | Serial data output | 2's complement 16-bit result shifted MSB-first on SCK rising edges; tri-state when RDL low. |
| OVDD (15) | I/O interface supply | 1.71–5.25V logic supply; sets VIH/VIL thresholds and enables mixed-voltage system interfacing. |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay / zero cycle latency | Enables deterministic real-time control loops without output phase shift or buffering overhead. |
| Extended 1.25µs acquisition window | Reduces required driver bandwidth and power-enables use of LT6350-H or similar low-power op-amps. |
| Internal conversion oscillator | Eliminates need for external clock generation circuitry and associated layout complexity. |
| H-grade temperature operation | Guaranteed performance from –40°C to +125°C supports industrial, automotive, and downhole applications. |
| SPI-compatible daisy-chain mode | Allows synchronous readout of multiple LTC2382HMS-16#TRPBF devices using single SCK/SDO lines. |
Applications
| Medical Imaging Signal Chain | Industrial Process Monitoring |
|---|---|
Use Scenario: Digitizing low-noise, wide-dynamic-range sensor outputs (e.g., CT detector arrays, ultrasound beamformers) where thermal drift and long-term stability are critical. IC Role / Device Role / Timing Role: High-fidelity 16-bit SAR ADC capturing analog front-end signals with 92dB SNR and ±2LSB INL at 500ksps. Use Value: Enables accurate reconstruction of weak physiological signals without post-processing correction due to guaranteed monotonicity and no missing codes. | Use Scenario: Real-time monitoring of pressure, temperature, and flow sensors in factory automation systems operating continuously at elevated ambient temperatures. IC Role / Device Role / Timing Role: Precision data acquisition node in distributed I/O modules, leveraging H-grade operation and low 6.5mW power at full throughput. Use Value: Reduces thermal load in sealed enclosures while maintaining measurement integrity across –40°C to +125°C ambient range. |
| Portable Test Equipment | Automated Test Equipment (ATE) |
Use Scenario: Handheld oscilloscopes and spectrum analyzers requiring high-resolution sampling within strict battery life constraints. IC Role / Device Role / Timing Role: Low-power, high-speed ADC with auto power-down between samples and 13µW idle current at 1ksps. Use Value: Extends battery runtime without sacrificing 16-bit resolution or 500ksps burst capture capability. | Use Scenario: Multi-channel parallel digitization in rack-mounted ATE systems performing parametric testing of ICs and RF components. IC Role / Device Role / Timing Role: Synchronized SAR ADC in daisy-chain configuration, sharing SCK and SDO lines across 4–8 channels. Use Value: Minimizes PCB routing complexity and controller GPIO count while preserving per-channel timing accuracy and channel-to-channel skew <1ns. |
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 |
|---|---|---|---|
| AD7626BCPZ-RL7 | 16-bit, 10Msps, 2.5V supply, ±2.5V input, but requires external reference and separate VIO supply; higher power (42mW @ 10Msps). | Targeted at ultra-high-speed applications (>1Msps) where throughput outweighs power budget. | Select AD7626BCPZ-RL7 only when >1Msps sampling is mandatory and board space allows larger decoupling network. |
| LTC2378-16IMS#PBF | 16-bit, 1Msps, same 2.5V supply and ±2.5V input, but lower SNR (90.5dB), no daisy-chain mode, and rated only to 85°C (I-grade). | Suitable for cost-sensitive industrial designs where 125°C operation is unnecessary and 500ksps is sufficient. | Choose LTC2378-16IMS#PBF for lower-cost alternatives in non-extreme temperature environments with relaxed SNR requirements. |
Compared with AD7626BCPZ-RL7 and LTC2378-16IMS#PBF, the LTC2382HMS-16#TRPBF uniquely balances 500ksps throughput, 92dB SNR, 125°C operation, and daisy-chain capability in a compact MSOP package-making it optimal for thermally constrained, multi-channel, high-precision embedded systems.
Availability
LTC2382HMS-16#TRPBF is available at Aetrix Electronics and suitable for medical imaging signal chains, industrial process monitoring systems, and portable test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC2382HMS-16#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 LTC2382-16 belongs to ADI's precision SAR ADC product line, designed specifically for high-speed, low-power, wide-dynamic-range data acquisition in demanding industrial, medical, and instrumentation applications.
FAQ
What is the maximum operating temperature of the LTC2382HMS-16#TRPBF?
The LTC2382HMS-16#TRPBF is an H-grade device rated for continuous operation from –40°C to +125°C ambient temperature. This specification is guaranteed across all electrical parameters including INL, SNR, and power consumption, making it suitable for under-hood automotive, downhole oil & gas, and industrial control applications where thermal robustness is critical. The MSOP package's θJA is 110°C/W.
Does the LTC2382HMS-16#TRPBF require an external reference, and what are the requirements?
Yes, the LTC2382HMS-16#TRPBF requires an external 2.4V to 2.6V reference applied to its dual REF pins. The reference must supply up to 495µA DC current at 500ksps and withstand transient charge demand from the internal 47pF sampling capacitor. Recommended references include the LTC6652-2.5 (0.05% initial accuracy, 5ppm/°C TC) or LTC6655-2.5 for improved transient response. A 47µF X5R ceramic capacitor must be placed directly at the REF pins.
How does the daisy-chain mode work on the LTC2382HMS-16#TRPBF?
In daisy-chain mode (CHAIN pin high), the LTC2382HMS-16#TRPBF accepts serial data on RDL/SDI and shifts out its own 16-bit conversion result on SDO synchronously with SCK. Multiple devices can be cascaded: SDO of Device 1 connects to RDL/SDI of Device 2, and so on. All devices share one SCK and BUSY line, with CNV asserted simultaneously. Total frame length equals 16 × N bits for N devices, enabling synchronized multi-channel capture without additional controller resources.
What is the significance of the 1.25µs acquisition time in the LTC2382HMS-16#TRPBF?
The 1.25µs acquisition time in the LTC2382HMS-16#TRPBF is an extended window enabled by its proprietary sampling architecture, allowing the ADC to begin acquiring the next sample during the current conversion. This reduces required driver bandwidth and power-enabling use of low-power amplifiers like the LT6350-H instead of higher-power alternatives. It also relaxes PCB layout constraints for analog signal paths and improves settling margin for high-impedance sources.
Can the LTC2382HMS-16#TRPBF operate with different I/O voltage levels than its core supply?
Yes, the LTC2382HMS-16#TRPBF supports independent I/O voltage operation via the OVDD pin (1.71V to 5.25V), while its core VDD remains fixed at 2.5V. This allows direct interfacing with 1.8V, 2.5V, 3.3V, or 5V microcontrollers and FPGAs without level-shifting circuitry. Input thresholds scale with OVDD (VIH = 0.8×OVDD, VIL = 0.2×OVDD), and output drive strength is optimized for the selected OVDD level-ensuring robust noise immunity and timing compliance across mixed-voltage systems.
LTC2382HMS-16#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TFSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 500k
- Number of Inputs:
- 1
- Input Type:
- Differential
- 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:
- 2.375V ~ 2.625V
- Voltage - Supply, Digital:
- 2.375V ~ 2.625V
- Features:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 16-MSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2382HMS-16#TRPBF FAQ
1.How can I place an order for LTC2382HMS-16#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2382HMS-16#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 LTC2382HMS-16#TRPBF reliable?
The price and inventory of LTC2382HMS-16#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2382HMS-16#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2382HMS-16#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2382HMS-16#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2382HMS-16#TRPBF?
LTC2382HMS-16#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2382HMS-16#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 LTC2382HMS-16#TRPBF?
For technical support, including LTC2382HMS-16#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2382HMS-16#TRPBF requirements.
6.How does Aetrix verify that LTC2382HMS-16#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2382HMS-16#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 LTC2382HMS-16#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2382HMS-16#TRPBF?
All LTC2382HMS-16#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2382HMS-16#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 LTC2382HMS-16#TRPBF part is unused and in its original packaging.
Return procedure for LTC2382HMS-16#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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