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Analog Devices Inc. LTC2382HMS-16#PBF
- Part No.:
- LTC2382HMS-16#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2382HMS-16#PBF.pdf
- Description:
- IC ADC 16BIT SAR 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,769
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Product details
Overview
LTC2382HMS-16#PBF 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 VDD supply, supports 1.8V–5V I/O logic via OVDD, and is qualified for –40°C to +125°C operation in MSOP-16 package - ideal for high-precision, high-speed industrial data acquisition under extended temperature conditions.
For engineers reviewing the LTC2382HMS-16#PBF datasheet, LTC2382HMS-16#PBF pinout, LTC2382HMS-16#PBF application, or LTC2382HMS-16#PBF equivalent, key selection considerations include guaranteed no-missing-codes performance at 16 bits, daisy-chain SPI interface compatibility, internal conversion clock, extended 1.25µs acquisition time enabling low-power driver use, and H-grade thermal robustness up to 125°C.
Technical Context
The LTC2382HMS-16#PBF employs a proprietary sampling architecture that allows acquisition of the next sample during the current conversion cycle, eliminating pipeline delay and achieving zero cycle latency. Its internal oscillator governs conversion timing (tCONV = 1–1.5µs), removing external clock dependency while supporting precise synchronization via CNV-triggered conversion start.
It features a high-impedance, fully differential analog front-end with 45pF sampling capacitance and 40Ω switch RON, optimized for low distortion with buffered inputs. The SPI-compatible serial interface supports both normal mode (RDL/SDI as bus enable) and chain mode (RDL/SDI as SDI), with SDO output in 2's complement format and 100MHz maximum SCK frequency capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 65,536 discrete output levels for high dynamic range digitization. |
| 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 across temperature. |
| SNR (Typ) | 92dB at fIN = 20kHz - corresponds to ~15.3 effective bits (ENOB) for precision measurement. |
| Power @ 500ksps | 6.5mW - achieved with 2.5V VDD and auto power-down between conversions. |
| Input Range | ±2.5V fully differential - supports bipolar signal acquisition without external level-shifting. |
| Reference Input | External 2.4V–2.6V - requires low-noise, low-drift reference (e.g., LTC6652-2.5) for full accuracy. |
| Operating Temp | –40°C to +125°C - qualified for harsh industrial and automotive under-hood environments. |
Pinout & Package
Package: 16-lead plastic MSOP (4mm × 5mm), exposed pad not present (DFN variant has exposed GND pad; MSOP does not). Pin pitch: 0.65mm. Thermal resistance θJA = 110°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (CHAIN) | Chain Mode Selector | High = daisy-chain SPI mode (RDL/SDI becomes SDI); Low = normal mode (RDL/SDI enables SDO). |
| 2 (VDD) | Digital Core Supply | 2.375V–2.625V; powers ADC core and control logic; bypass with 10µF ceramic capacitor. |
| 4,5 (IN+, IN–) | Differential Analog Inputs | Accept ±2.5V differential signal; 45pF sampling capacitance; require matched drive for CMRR >70dB. |
| 7,8 (REF) | Reference Voltage Input | 2.4V–2.6V external reference; draws up to 495µA at 500ksps; bypass with 47µF X5R ceramic. |
| 9 (CNV) | Convert Trigger Input | Rising edge initiates conversion; high state enables auto power-down after completion. |
| 11 (BUSY) | Conversion Status Indicator | Active-high open-drain output signaling conversion in progress; used for timing coordination. |
| 12 (RDL/SDI) | Mode-Dependent Serial I/O | In Normal Mode: bus enable; in Chain Mode: serial data input from upstream ADC in daisy chain. |
| 13 (SCK) | Serial Clock Input | Drives data transfer; supports up to 100MHz (10ns period); timing-critical for setup/hold compliance. |
| 14 (SDO) | Serial Data Output | 2's complement 16-bit result; MSB-first; enabled by RDL in Normal Mode; tri-stated when disabled. |
| 15 (OVDD) | I/O Interface Supply | 1.71V–5.25V; sets logic voltage level for SCK, RDL/SDI, SDO, BUSY; bypass with 0.1µF capacitor. |
| 3,6,10,16 (GND) | Analog/Digital Ground | Four dedicated ground pins minimize noise coupling; must be connected to low-impedance PCB ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| No missing codes at 16 bits | Guaranteed monotonic transfer function across full temperature range - eliminates code ambiguities in closed-loop control. |
| Extended 1.25µs acquisition time | Enables use of ultra-low-power op-amps (e.g., LT6350-H) with <1mA quiescent current, reducing system-level power budget. |
| Internal conversion clock | Eliminates need for external timing circuitry; simplifies layout and improves jitter immunity in noisy environments. |
| Daisy-chain SPI mode | Supports multi-ADC synchronization with single SCK/SCK and minimal interconnect - reduces FPGA GPIO count in channel-dense systems. |
| Auto power-down between conversions | Reduces idle power to 0.5µA (H-grade), scaling linearly with sampling rate - critical for battery-powered instrumentation. |
| Guaranteed operation to 125°C | Validated performance across full H-grade range - suitable for motor control, downhole tools, and engine management systems. |
Applications
| Industrial Process Control | High-Speed Data Acquisition |
|---|---|
|
Use Scenario: Real-time monitoring of pressure, temperature, and flow sensors in PLC-based control cabinets operating near motors or variable-frequency drives. IC Role / Device Role / Timing Role: Precision digitizer for 4–20mA loop receivers and isolated sensor interfaces; synchronized via CNV to deterministic control cycles. Use Value: ±2LSB INL and 92dB SNR ensure sub-0.01% measurement accuracy despite EMI-rich factory floor environments. |
Use Scenario: Portable oscilloscope front-end capturing transient waveforms in field service equipment with battery life constraints. IC Role / Device Role / Timing Role: High-throughput SAR ADC with zero latency; triggered by external event to capture pre/post-trigger samples without buffer gaps. Use Value: 500ksps throughput + 1.25µs acquisition time enables use of <1mA op-amp drivers, extending battery runtime by >40% vs. competing ADCs. |
| Medical Imaging Subsystem | Automotive Test Equipment |
|
Use Scenario: Ultrasound beamformer channel digitization requiring low THD and high SFDR to resolve weak echo signals amid strong clutter. IC Role / Device Role / Timing Role: Differential input ADC accepting ±2.5V signals from LNA/PGA stages; driven by LT6350-H for matched gain/phase response. Use Value: –106dB THD and 107dB SFDR preserve signal integrity for Doppler shift detection and tissue harmonic imaging. |
Use Scenario: In-vehicle ECU validation rig measuring CAN/LIN bus power rail transients and sensor excitation signals during cold-crank testing. IC Role / Device Role / Timing Role: Temperature-hardened ADC sampling analog diagnostics at 125°C ambient; referenced by LTC6652-2.5 for stable 2.5V scale. Use Value: Guaranteed H-grade operation ensures reliable data capture during extended soak tests where ambient exceeds 105°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, high-accuracy SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7960BCPZ-RL7 | 18-bit, 5Msps, 2.5V supply, ±5V input range; requires external reference and separate VIO; no daisy-chain mode. | Better resolution and speed but higher power (43mW) and larger 32-lead LFCSP package; lacks integrated chain mode. | Select for applications needing >16-bit ENOB and >500ksps, where board space and power allow. |
| LTC2378-20IMS#PBF | 20-bit, 1Msps, 97.7dB SNR, same MSOP-16 package; requires 3.3V VDD; only rated to 85°C (I-grade). | Higher resolution and SNR but limited to 85°C; no H-grade option; consumes 15mW at full speed. | Select when ultimate DC accuracy and noise floor matter more than extended temperature operation or power efficiency. |
Compared with AD7960BCPZ-RL7 and LTC2378-20IMS#PBF, the LTC2382HMS-16#PBF uniquely balances 16-bit precision, 500ksps throughput, ultra-low 6.5mW power, and guaranteed 125°C operation in a compact MSOP - making it optimal for thermally constrained, battery-aware, or cost-sensitive high-channel-count systems.
Availability
LTC2382HMS-16#PBF is available at Aetrix Electronics and suitable for industrial process control, portable instrumentation, and automotive test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC2382HMS-16#PBF 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 applications demanding high speed, low power, and guaranteed performance across extreme temperatures - including industrial automation, medical instrumentation, and aerospace subsystems.
FAQ
What is the maximum operating temperature of the LTC2382HMS-16#PBF?
The LTC2382HMS-16#PBF is an H-grade device qualified for continuous operation from –40°C to +125°C ambient temperature. This rating is verified across all electrical specifications including INL, SNR, and power consumption, making it suitable for under-hood automotive, downhole oil/gas, and industrial motor control applications where thermal stress is severe.
Does the LTC2382HMS-16#PBF require an external clock source?
No, the LTC2382HMS-16#PBF integrates an internal oscillator that controls conversion timing, eliminating the need for an external clock. Conversion is initiated by a rising edge on the CNV pin, and the internal timing ensures consistent tCONV of 1–1.5µs. External clocks are unnecessary unless custom timing alignment is required via SCK-driven serial readout.
Can the LTC2382HMS-16#PBF operate with a 3.3V I/O interface?
Yes - the LTC2382HMS-16#PBF supports 1.8V, 2.5V, 3.3V, and 5V logic levels via its independent OVDD supply pin (Pin 15). When OVDD = 3.3V, digital inputs (SCK, CHAIN, CNV, RDL/SDI) recognize VIH ≥ 2.64V and VIL ≤ 0.66V, and SDO outputs VOH ≥ 3.1V and VOL ≤ 0.2V, ensuring robust interoperability with 3.3V microcontrollers and FPGAs.
What reference voltage IC is recommended for use with the LTC2382HMS-16#PBF?
The LTC6652-2.5 is explicitly recommended in the datasheet for the LTC2382HMS-16#PBF. It provides 2.500V ±0.05% initial accuracy, 5ppm/°C max drift, and is specified over the same –40°C to +125°C range. Its low noise (0.25ppm RMS) and fast settling (<1µs to 0.01%) prevent reference-induced errors in high-SNR applications.
Is the LTC2382HMS-16#PBF pin-compatible with other variants in the LTC2382-16 family?
Yes - all LTC2382-16 variants (C/I/H grades, MSOP and DFN packages) share identical pinouts and footprints within each package type. The LTC2382HMS-16#PBF uses the same 16-lead MSOP layout as LTC2382CMS-16#PBF and LTC2382IMS-16#PBF, enabling drop-in replacement for thermal upgrades without PCB redesign.
LTC2382HMS-16#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TFSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- 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#PBF FAQ
1.How can I place an order for LTC2382HMS-16#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2382HMS-16#PBF 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#PBF reliable?
The price and inventory of LTC2382HMS-16#PBF 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#PBF is usually 5 days.
3.What payment methods are accepted for LTC2382HMS-16#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2382HMS-16#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2382HMS-16#PBF?
LTC2382HMS-16#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2382HMS-16#PBF 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#PBF?
For technical support, including LTC2382HMS-16#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2382HMS-16#PBF requirements.
6.How does Aetrix verify that LTC2382HMS-16#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2382HMS-16#PBF 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#PBF meets industry standards.
7.What is the process for return or replacement of LTC2382HMS-16#PBF?
All LTC2382HMS-16#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2382HMS-16#PBF, 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#PBF part is unused and in its original packaging.
Return procedure for LTC2382HMS-16#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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