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Analog Devices Inc. LTC2382IMS-16#PBF
- Part No.:
- LTC2382IMS-16#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2382IMS-16#PBF.pdf
- Description:
- IC ADC 16BIT SAR 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,410
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Product details
Overview
LTC2382IMS-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 supply (VDD), supports 1.8V–5V I/O logic (OVDD), and is used in high-speed data acquisition systems requiring low latency and guaranteed no-missing-codes performance.
For engineers reviewing the LTC2382IMS-16#PBF datasheet, LTC2382IMS-16#PBF pinout, LTC2382IMS-16#PBF application, or LTC2382IMS-16#PBF equivalent, key selection considerations include its extended 1.25µs acquisition time enabling ultra-low-power ADC drivers, internal conversion clock eliminating external timing constraints, daisy-chain SPI interface for multi-ADC synchronization, and guaranteed operation from –40°C to +85°C in MSOP package.
Technical Context
The LTC2382IMS-16#PBF implements a proprietary sampling architecture that allows acquisition of the next sample during the current conversion cycle, delivering 1.25µs acquisition time and eliminating pipeline delay. Its internal oscillator sets tCONV = 1.5µs max and enables zero-cycle-latency operation - critical for real-time control loops and burst-mode sampling.
It uses a 16-bit CDAC-based SAR core with differential comparator, accepts external 2.5V reference (±0.1V tolerance), and features fully differential analog inputs with 30MHz –3dB bandwidth, 70dB CMRR, and 45pF input capacitance in sample mode. Digital interface complies with SPI timing at up to 100MHz SCK (10ns period), supporting both normal bus-enable and daisy-chain modes via CHAIN pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 65,536 discrete output levels with guaranteed no missing codes across full temperature range. |
| Sampling Rate | 500ksps - enables real-time digitization of signals up to ~200kHz Nyquist bandwidth without undersampling. |
| SNR | 92dB (typ, fIN = 20kHz) - corresponds to ~15.3 effective bits (ENOB), suitable for precision instrumentation and medical imaging. |
| INL | ±2LSB (max, –40°C to +85°C) - ensures monotonicity and linearity-critical applications like closed-loop motor control. |
| Power @ 500ksps | 6.5mW (VDD = 2.5V) - enables battery-operated portable instruments with thermal budget under 10mW per channel. |
| Acquisition Time | 1.25µs - permits use of low-power, low-bandwidth op-amps (e.g., LT6350) as input drivers, reducing system power and cost. |
| Reference Input | 2.5V external (2.4V–2.6V) - requires low-noise, low-drift source (e.g., LTC6652-2.5); draws up to 495µA at 500ksps. |
Pinout & Package
Package: 16-lead plastic MSOP (4mm × 5mm), –40°C to +85°C operating temperature range. Exposed pad not present in MSOP variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CHAIN (1) | Mode selector | High = daisy-chain mode (RDL/SDI becomes serial data input); Low = normal mode (RDL/SDI enables/disables SDO). |
| VDD (2) | Digital core supply | 2.5V ±62.5mV supply for ADC logic and CDAC; bypass with 10µF ceramic capacitor to GND. |
| GND (3,6,10,16) | Analog/digital ground | Four dedicated ground pins minimize ground bounce; must be connected to low-impedance PCB ground plane. |
| IN+, IN– (4,5) | Differential analog inputs | Accept ±2.5V fully differential signal; 45pF input capacitance in sample mode; require matched layout and low-impedance drive. |
| REF (7,8) | Reference voltage input | 2.5V reference input (2.4V–2.6V); decoupled with 47µF X5R ceramic capacitor; supplies charge during each conversion. |
| CNV (9) | Convert trigger | Rising edge initiates conversion; held high after conversion to auto-power-down; low before next CNV edge powers up ADC. |
| BUSY (11) | Conversion status indicator | Active-high open-drain output; asserts high at conversion start, deasserts low when 16-bit result ready on SDO. |
| RDL/SDI (12) | Serial bus control / data input | In normal mode: controls SDO tri-state; in chain mode: receives serial data from upstream ADC in daisy chain. |
| SCK (13) | Serial clock input | Drives SPI interface; supports 1.8V–5V logic levels; 10ns min period (100MHz max); rising edge clocks data out on SDO. |
| SDO (14) | Serial data output | 2's complement 16-bit result shifted MSB-first; enabled only when RDL/SDI is low (normal mode) or in chain mode after BUSY goes low. |
| OVDD (15) | I/O interface supply | 1.71V–5.25V supply for digital I/O (SCK, RDL/SDI, SDO, BUSY); sets VIH/VIL thresholds; bypass with 0.1µF capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| No cycle latency | Delivers first valid conversion result immediately after CNV rising edge - eliminates pipeline delay for deterministic timing in real-time systems. |
| Daisy-chain SPI mode | Enables synchronous sampling of multiple LTC2382IMS-16#PBF devices using single SCK and CNV lines - reduces controller GPIO count and simplifies PCB routing. |
| Auto power-down between conversions | Reduces IDD to 0.5µA (typ) when CNV held high - cuts average power by >99% during idle periods in burst-sampling applications. |
| Extended acquisition time (1.25µs) | Allows use of low-power, low-bandwidth op-amps (e.g., LT6350) as input drivers - avoids costly high-speed amplifiers while maintaining full 92dB SNR. |
| Guaranteed operation to 85°C | Specified over full industrial temperature range (–40°C to +85°C) with all parameters tested - suitable for embedded industrial and automotive cabin applications. |
Applications
| Medical Imaging Data Acquisition | Industrial Process Control Loop Sampling |
|---|---|
|
Use Scenario: Digitizing CT/MRI sensor outputs or ultrasound beamformer channels where low noise and deterministic latency are critical. IC Role / Device Role / Timing Role: Primary 16-bit SAR ADC capturing analog sensor data at 500ksps with zero pipeline delay and 92dB SNR for image fidelity. Use Value: Extended 1.25µs acquisition time enables integration with low-power, low-distortion drivers (e.g., LT6350), reducing system thermal load and board area. |
Use Scenario: High-speed feedback sampling in servo drives, PLC analog I/O modules, or power quality monitors requiring sub-microsecond jitter control. IC Role / Device Role / Timing Role: Real-time ADC in closed-loop control path, triggered synchronously via CNV with BUSY indicating result readiness for immediate CPU read. Use Value: No cycle latency and internal conversion clock eliminate external timing dependencies - simplifies firmware and improves loop determinism. |
| Portable Battery-Powered Test Equipment | Automated Test Equipment (ATE) Channel |
|
Use Scenario: Handheld oscilloscopes, multimeters, or spectrum analyzers needing high-resolution acquisition with minimal power draw. IC Role / Device Role / Timing Role: Core ADC in compact instrument front-end, leveraging 6.5mW @ 500ksps and auto power-down to extend battery life. Use Value: 1.8V–5V OVDD support allows direct interfacing with 3.3V microcontrollers without level shifters - reducing BOM count and layout complexity. |
Use Scenario: Multi-channel ATE systems requiring synchronized, high-fidelity digitization across dozens of DUT measurement points. IC Role / Device Role / Timing Role: One of many identical ADCs in daisy-chained configuration, sharing CNV and SCK to ensure simultaneous sampling across channels. Use Value: Daisy-chain mode reduces FPGA/controller pin count and routing congestion - enables scalable channel expansion without added interface logic. |
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 |
|---|---|---|---|
| AD7960BCPZ-RL7 | 18-bit, 5MSPS, 2.5V supply, ±5V input range, requires external reference and separate VIO supply; higher power (43mW @ 5MSPS). | Higher resolution/speed but demands more complex power and reference design; less suitable for low-power portable use. | Select AD7960BCPZ-RL7 only when >16-bit ENOB or >500ksps throughput is required; verify driver capability for 5MSPS settling. |
| ADS8860IDRCT | 16-bit, 1MSPS, 2.5–5V supply, pseudo-differential input (single-ended compatible), 1.5mW @ 100ksps; no daisy-chain mode. | Lower power at reduced speed; lacks true differential input and daisy-chain - limits noise immunity and multi-channel sync capability. | Choose ADS8860IDRCT for cost-sensitive, lower-speed applications where differential input and chain mode are unnecessary. |
Compared with AD7960BCPZ-RL7 and ADS8860IDRCT, the LTC2382IMS-16#PBF uniquely balances 500ksps throughput, 92dB SNR, daisy-chain SPI, and 6.5mW power in a single 2.5V-supply IC - making it optimal for industrial and portable systems demanding precision, low latency, and multi-ADC synchronization without added complexity.
Availability
LTC2382IMS-16#PBF is available at Aetrix Electronics and suitable for medical imaging data acquisition, industrial process control loop sampling, and portable battery-powered test equipment requiring stable component supply, long-term lifecycle support, and guaranteed industrial-temperature-grade performance.
Supply support for LTC2382IMS-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 LTC2382IMS-16#PBF belongs to ADI's precision SAR ADC product line, designed specifically for applications demanding high dynamic range, low latency, and robust operation in space-constrained, thermally sensitive environments.
FAQ
What is the maximum sampling rate of the LTC2382IMS-16#PBF?
The LTC2382IMS-16#PBF achieves a guaranteed maximum sampling rate of 500ksps across its full operating temperature range (–40°C to +85°C). This rate is supported by an internal conversion clock with tCONV ≤ 1.5µs and tCYC = 2µs, enabling deterministic timing without external clock generation circuitry.
Does the LTC2382IMS-16#PBF require an external reference voltage?
Yes, the LTC2382IMS-16#PBF requires an external 2.5V reference applied to the REF pins (7 and 8). The device specifies 2.4V to 2.6V input range and draws up to 495µA DC current at 500ksps. Recommended references include the LTC6652-2.5 for high-precision applications due to its 5ppm/°C drift and 0.05% initial accuracy.
How does the daisy-chain mode work on the LTC2382IMS-16#PBF?
Daisy-chain mode is enabled by pulling the CHAIN pin (1) high. In this mode, RDL/SDI becomes a serial data input, allowing cascaded connection of multiple LTC2382IMS-16#PBF devices. A single SCK and CNV signal synchronizes all converters, and conversion results shift out sequentially from the last device's SDO - enabling multi-channel sampling with minimal controller resources.
What is the significance of the 1.25µs acquisition time in the LTC2382IMS-16#PBF?
The 1.25µs acquisition time in the LTC2382IMS-16#PBF is an extended window that begins before conversion completion, allowing low-bandwidth, low-power op-amps (e.g., LT6350) to settle fully before sampling. This eliminates the need for expensive high-speed drivers while preserving 92dB SNR - directly reducing system power, cost, and board area.
Is the LTC2382IMS-16#PBF pin-compatible with other variants in the LTC2382 family?
Yes, the LTC2382IMS-16#PBF shares identical pinout and footprint with other MSOP-packaged variants including LTC2382CMS-16#PBF (0°C to 70°C) and LTC2382HMS-16#PBF (–40°C to 125°C). All MSOP versions use the same 16-pin layout, enabling drop-in replacement across temperature grades without PCB redesign.
LTC2382IMS-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 ~ 85°C
- Supplier Device Package:
- 16-MSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2382IMS-16#PBF FAQ
1.How can I place an order for LTC2382IMS-16#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2382IMS-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 LTC2382IMS-16#PBF reliable?
The price and inventory of LTC2382IMS-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 LTC2382IMS-16#PBF is usually 5 days.
3.What payment methods are accepted for LTC2382IMS-16#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2382IMS-16#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2382IMS-16#PBF?
LTC2382IMS-16#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2382IMS-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 LTC2382IMS-16#PBF?
For technical support, including LTC2382IMS-16#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2382IMS-16#PBF requirements.
6.How does Aetrix verify that LTC2382IMS-16#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2382IMS-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 LTC2382IMS-16#PBF meets industry standards.
7.What is the process for return or replacement of LTC2382IMS-16#PBF?
All LTC2382IMS-16#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2382IMS-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 LTC2382IMS-16#PBF part is unused and in its original packaging.
Return procedure for LTC2382IMS-16#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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