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Analog Devices Inc. LTC2380IMS-24#PBF
- Part No.:
- LTC2380IMS-24#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2380IMS-24#PBF.pdf
- Description:
- IC ADC 24BIT SAR 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,053
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Product details
Overview
LTC2380IMS-24#PBF from Analog Devices (formerly Linear Technology) is a 24-bit, 2 Msps successive approximation register (SAR) analog-to-digital converter with integrated real-time digital averaging filter, ±3.5 ppm INL max, 101 dB SNR at 1.5 Msps, and single 2.5 V supply operation. It delivers no missing codes at 24 bits and supports fully differential ±VREF inputs (2.5 V to 5.1 V) for high-precision data acquisition in seismic instrumentation and medical imaging systems.
For engineers reviewing the LTC2380IMS-24#PBF datasheet, LTC2380IMS-24#PBF pinout, LTC2380IMS-24#PBF application, or LTC2380IMS-24#PBF equivalent, key selection criteria include guaranteed 24-bit no-missing-codes performance, integrated digital filter enabling 145 dB dynamic range at 30.5 sps, SPI-compatible daisy-chain interface, 16-lead MSOP package rated for –40°C to +85°C, and digital gain compression (DGC) support via REF/DGC pin.
Technical Context
The LTC2380IMS-24#PBF implements a charge redistribution capacitor DAC architecture with 24-bit resolution and ±VREF fully differential input stage. Its integrated digital filter performs real-time averaging of 1–65536 conversion results without configuration registers or external programming.
It features automatic power-down between conversions, 1.8 V to 5 V logic-compatible SPI interface with daisy-chain mode, and REF/DGC pin that enables digital gain compression when tied to GND-redefining full-scale to 10%–90% of ±VREF range-while maintaining 24-bit linearity and monotonicity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 24-bit SAR ADC with guaranteed no missing codes across full temperature range |
| Sampling Rate | 2 Msps maximum sampling frequency; 1.5 Msps output data rate with N = 1 averaging |
| INL | ±3.5 ppm maximum integral nonlinearity ensures sub-ppm precision in metrology-grade measurements |
| Dynamic Range | 101 dB at 1.5 Msps (N = 1); extends to 145 dB at 30.5 sps (N = 65536) via integrated averaging filter |
| Power Consumption | 28 mW at 2 Msps (VDD = 2.5 V), dropping to 2.5 μW in power-down mode |
| Input Range | Fully differential ±VREF, with VREF adjustable from 2.5 V to 5.1 V; common-mode range up to ±VREF/2 |
| Temperature Range | –40°C to +85°C industrial grade, validated across full operating range per datasheet specifications |
Pinout & Package
Package: 16-lead plastic MSOP (5.0 mm × 4.4 mm × 1.1 mm), exposed pad not present (DFN variant has exposed pad; MSOP does not). Pinout validated per Linear Technology LTC2380-24 datasheet Figure "PIN CONFIGURATION" (MS PACKAGE).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CHAIN (1) | Mode selector | Low = normal SPI mode (RDL/SDI = bus enable); high = daisy-chain mode (RDL/SDI = serial data input) |
| VDD (2) | Analog supply | 2.375 V to 2.625 V; powers core ADC and digital filter; requires 10 µF ceramic bypass to GND |
| GND (3,6,10,16) | Analog/digital ground | Four dedicated ground pins minimize noise coupling; must be connected to low-impedance PCB ground plane |
| IN+, IN– (4,5) | Differential analog inputs | Accept ±VREF differential signal; input capacitance 45 pF in sample mode; require low-impedance drive or buffer |
| REF (7) | Reference voltage input | 2.5 V to 5.1 V reference source; decoupled with 47 µF X7R ceramic capacitor (1210 size) |
| REF/DGC (8) | Digital gain compression control | Tied to REF → standard ±VREF full-scale; tied to GND → DGC enabled (10%–90% of ±VREF) |
| CNV (9) | Convert trigger | Rising edge initiates acquisition and conversion; logic level referenced to OVDD |
| BUSY (11) | Conversion status indicator | High during conversion; falls low when 24-bit result ready on SDO; used for timing synchronization |
| RDL/SDI (12) | Bus enable / serial data input | In normal mode: controls SDO tri-state; in chain mode: accepts serial data from upstream ADC |
| SCK (13) | Serial clock input | Supports up to 100 MHz clock (10 ns period); rising-edge sampled; logic level referenced to OVDD |
| SDO (14) | Serial data output | 24-bit 2's complement output MSB-first; tri-stated when RDL/SDI high in normal mode |
| OVDD (15) | I/O supply | 1.71 V to 5.25 V; sets logic thresholds for all digital I/O; bypassed with 0.1 µF ceramic capacitor |
Key Features
| Feature | Design Value |
|---|---|
| Integrated digital averaging filter | Real-time averaging of 1–65536 samples without registers or firmware overhead-enables 145 dB DR at ultra-low output rates |
| Digital gain compression (DGC) | Configurable full-scale range (10%–90% of ±VREF) via REF/DGC pin, preserving 24-bit linearity and eliminating need for external gain scaling |
| Daisy-chain SPI interface | Single SCK/SDO line supports cascaded multi-ADC systems without additional GPIO or address decoding logic |
| Auto power-down between conversions | Reduces current draw to 0.4 mA typical at 2 Msps and <1 µA in deep power-down-critical for battery-powered DAQ |
| 50 Hz/60 Hz rejection | Integrated filtering provides inherent line-frequency interference suppression without external notch filters |
Applications
| Seismology Instrumentation | Energy Exploration |
|---|---|
Use Scenario: High-resolution digitization of low-amplitude, low-frequency (<100 Hz) ground motion signals from geophone arrays in remote field deployments. IC Role / Device Role / Timing Role: Primary 24-bit SAR ADC capturing microvolt-level differential seismic waveforms with 145 dB dynamic range at 30.5 sps using N = 65536 averaging. Use Value: Enables detection of weak subsurface reflections buried beneath thermal and environmental noise-critical for hydrocarbon reservoir mapping. | Use Scenario: Downhole logging tools acquiring resistivity, gamma-ray, and acoustic data under extreme temperature and vibration conditions. IC Role / Device Role / Timing Role: Precision ADC interfacing with high-impedance sensor front-ends; operates reliably from –40°C to +85°C with ±3.5 ppm INL stability over temperature. Use Value: Eliminates calibration drift in harsh environments, ensuring consistent formation evaluation accuracy across borehole depth profiles. |
| Medical Imaging | Industrial Process Control |
Use Scenario: Digitizing analog outputs from MRI gradient coil current monitors and CT detector photodiode arrays requiring ultra-low distortion. IC Role / Device Role / Timing Role: 24-bit ADC with –117 dB THD at 2 kHz and 100 dB SNR supporting high-fidelity signal capture for image reconstruction algorithms. Use Value: Reduces image artifacts and improves contrast resolution by minimizing harmonic distortion and quantization noise in diagnostic imaging chains. | Use Scenario: Closed-loop feedback in high-accuracy servo drives and programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: High-speed, high-linearity ADC converting motor phase currents and position encoder signals at 2 Msps with 24-bit resolution. Use Value: Enables sub-arcminute angular positioning and <0.01% torque ripple control-meeting SIL-2 functional safety requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-resolution SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7626BCPZ-RL7 | 16-bit, 10 Msps, no integrated digital filter; requires external FPGA/DSP for averaging; ±1.5 ppm INL typ | Higher speed but lower resolution; lacks DGC and 50/60 Hz rejection; needs external decimation logic | Select when >5 Msps throughput is required and 16-bit resolution suffices for system SNR budget |
| LTC2378IMS-20#PBF | 20-bit, 1.6 Msps, ±0.5 ppm INL typ, same MSOP package and SPI interface; no DGC pin or 50/60 Hz rejection | Lower resolution but superior INL; lacks digital gain compression and line-frequency rejection features | Select when ultimate DC linearity is prioritized over dynamic range extension and DGC flexibility |
Compared with AD7626BCPZ-RL7 and LTC2378IMS-20#PBF, the LTC2380IMS-24#PBF uniquely combines 24-bit no-missing-codes resolution, integrated real-time averaging, DGC capability, and 50/60 Hz rejection-making it optimal for ultra-high-dynamic-range, low-drift precision measurement where firmware complexity must be minimized.
Availability
LTC2380IMS-24#PBF is available at Aetrix Electronics and suitable for seismic monitoring systems, downhole energy exploration tools, MRI/CT signal chains, and industrial PLC analog input modules requiring stable component supply with guaranteed long-term availability.
Supply support for LTC2380IMS-24#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 LTC2380IMS-24#PBF belongs to ADI's precision SAR ADC product line, designed specifically for applications demanding 24-bit resolution, ultra-low INL, and integrated signal conditioning-targeting scientific instrumentation, medical imaging, and industrial test equipment.
FAQ
What is the maximum sampling rate supported by the LTC2380IMS-24#PBF?
The LTC2380IMS-24#PBF supports a maximum sampling frequency of 2 Msps, with an output data rate of 1.5 Msps when operating with N = 1 averaging. This is confirmed in the Electrical Characteristics table under "ADC TIMING CHARACTERISTICS" (fSMPL MAX = 2 Msps, fODR = 1.5 Msps). The device maintains full 24-bit performance and ±3.5 ppm INL at this rate.
Does the LTC2380IMS-24#PBF require external configuration registers or SPI commands to enable its digital averaging filter?
No, the LTC2380IMS-24#PBF does not require external configuration registers or SPI commands to enable its digital averaging filter. As stated in the datasheet "FEATURES" section, the integrated digital averaging filter operates in real time with no separate programming interface-averaging count (N = 1 to 65536) is set solely by the number of consecutive conversions performed, and the filter output updates automatically after each conversion cycle.
How does the REF/DGC pin function on the LTC2380IMS-24#PBF?
The REF/DGC pin on the LTC2380IMS-24#PBF configures digital gain compression: when tied to REF, full-scale corresponds to the standard ±VREF input range; when tied to GND, full-scale is redefined to 10%–90% of ±VREF, effectively compressing the usable input span while preserving 24-bit linearity and monotonicity. This eliminates external gain-scaling circuitry and simplifies anti-aliasing filter design.
What is the operating temperature range for the LTC2380IMS-24#PBF?
The LTC2380IMS-24#PBF is rated for operation from –40°C to +85°C, as specified in the "ORDER INFORMATION" table for the "I" grade (LTC2380IMS-24#PBF). All key specifications-including INL (±3.5 ppm max), SNR (100 dB typ), and power consumption-are guaranteed across this full industrial temperature range.
Can the LTC2380IMS-24#PBF interface directly with a 1.8 V microcontroller SPI port?
Yes, the LTC2380IMS-24#PBF can interface directly with a 1.8 V microcontroller SPI port. Its OVDD supply accepts 1.71 V to 5.25 V, and all digital I/O (SCK, SDO, RDL/SDI, CNV, BUSY, CHAIN) are referenced to OVDD. With OVDD = 1.8 V, input thresholds become 0.2× and 0.8× OVDD (0.36 V and 1.44 V), fully compatible with standard 1.8 V logic levels-no level-shifting circuitry is required.
LTC2380IMS-24#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:
- 24
- Sampling Rate (Per Second):
- 2M
- 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:
- 1.71V ~ 5.25V
- Voltage - Supply, Digital:
- 1.71V ~ 5.25V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 16-MSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2380IMS-24#PBF FAQ
1.How can I place an order for LTC2380IMS-24#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2380IMS-24#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 LTC2380IMS-24#PBF reliable?
The price and inventory of LTC2380IMS-24#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2380IMS-24#PBF is usually 5 days.
3.What payment methods are accepted for LTC2380IMS-24#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2380IMS-24#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2380IMS-24#PBF?
LTC2380IMS-24#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2380IMS-24#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 LTC2380IMS-24#PBF?
For technical support, including LTC2380IMS-24#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2380IMS-24#PBF requirements.
6.How does Aetrix verify that LTC2380IMS-24#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2380IMS-24#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 LTC2380IMS-24#PBF meets industry standards.
7.What is the process for return or replacement of LTC2380IMS-24#PBF?
All LTC2380IMS-24#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2380IMS-24#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 LTC2380IMS-24#PBF part is unused and in its original packaging.
Return procedure for LTC2380IMS-24#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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