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Analog Devices Inc. LTC2378IMS-16#TRPBF
- Part No.:
- LTC2378IMS-16#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2378IMS-16#TRPBF.pdf
- Description:
- IC ADC 16BIT SAR 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,386
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Product details
Overview
LTC2378IMS-16#TRPBF from Analog Devices (formerly Linear Technology) is a 16-bit, 1 Msps successive approximation register (SAR) analog-to-digital converter with ±0.5 LSB INL max, 97 dB SNR at 2 kHz, and fully differential ±VREF input range (2.5 V to 5.1 V). It operates from a single 2.5 V analog supply and supports 1.8 V–5 V I/O logic, enabling direct interfacing with diverse host processors in high-precision data acquisition systems.
For engineers reviewing the LTC2378IMS-16#TRPBF datasheet, LTC2378IMS-16#TRPBF pinout, LTC2378IMS-16#TRPBF application, or LTC2378IMS-16#TRPBF equivalent, key selection criteria include guaranteed 16-bit no-missing-codes operation, digital gain compression (DGC) for single-supply amplifier drive, internal conversion clock, daisy-chain SPI interface, and –40°C to +85°C industrial temperature rating.
Technical Context
The LTC2378IMS-16#TRPBF implements a charge-redistribution SAR architecture with a 16-bit CDAC and differential comparator, achieving zero-cycle latency and no pipeline delay. Its internal oscillator eliminates external clock dependency, while auto power-down between conversions scales dissipation from 13.5 mW at 1 Msps to 13.5 µW at 1 ksps.
Digital Gain Compression (DGC) redefines full-scale mapping to 10%–90% of ±VREF when REF/DGC is grounded-enabling rail-to-rail input swing (e.g., 0.5 V to 4.5 V at VREF = 5 V) without requiring negative supply for driving amplifiers. The device supports true bipolar input handling via 2's complement output format and maintains 86 dB CMRR at 500 kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 65,536 discrete output levels with guaranteed no missing codes across temperature. |
| Sampling Rate | 1 Msps - enables real-time capture of signals up to 500 kHz (Nyquist-limited), suitable for high-speed transient analysis. |
| SNR | 97 dB (typ, fIN = 2 kHz, VREF = 5 V) - supports >15.8 effective bits (ENOB) for precision measurement applications. |
| INL | ±0.5 LSB (max) - ensures monotonicity and linearity critical for closed-loop control and calibration systems. |
| Power Dissipation | 13.5 mW at 1 Msps - enables thermally constrained portable instrumentation without active cooling. |
| Input Range | Fully differential ±VREF, VREF = 2.5 V to 5.1 V - provides flexible dynamic range scaling and compatibility with standard reference ICs. |
| DGC Support | Enabled by grounding REF/DGC pin - eliminates need for dual-supply op-amps, simplifying front-end design and reducing BOM count. |
Pinout & Package
Package: 16-lead plastic MSOP (3 mm × 4.9 mm), exposed pad not present (unlike DFN variant); rated for –40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CHAIN (1) | Mode selector | Low = normal SPI mode (RDL/SDI controls SDO enable); high = daisy-chain mode (RDL/SDI becomes serial data input). |
| VDD (2) | Analog supply | 2.375 V–2.625 V; powers core ADC and internal oscillator; requires 10 µF ceramic bypass to GND. |
| IN+ / IN– (4,5) | Differential analog inputs | Accept ±VREF swing; input capacitance 45 pF (sample), 5 pF (hold); common-mode range = VREF/2 ± 0.1 V. |
| REF (7) | Reference voltage input | 2.5 V–5.1 V; supplies ADC full-scale definition; decoupled with 47 µF X5R ceramic capacitor. |
| REF/DGC (8) | Reference/DGC control | Tied to REF → DGC disabled; tied to GND → DGC enabled (0.1×VREF to 0.9×VREF full-scale mapping). |
| CNV (9) | Convert trigger | Rising edge initiates conversion and wakes device from auto power-down; no minimum pulse width required. |
| BUSY (11) | Conversion status | Active-high open-drain signal; asserts at CNV↑, deasserts after tCONV (≤527 ns); used for timing synchronization. |
| SDO (14) | Serial data output | 2's complement 16-bit result; MSB-first; compatible with 1.8 V–5 V logic; tri-stated when RDL/SDI = low in normal mode. |
| OVDD (15) | Digital I/O supply | 1.71 V–5.25 V; sets logic thresholds for all digital pins; bypassed with 0.1 µF capacitor to GND. |
Key Features
| Feature | Design Value |
|---|---|
| Digital Gain Compression (DGC) | Enables single-supply amplifier drive (e.g., LT6350 from +5.5 V only) while preserving full 16-bit resolution and linearity. |
| No cycle latency | Delivers first valid conversion result immediately after CNV rising edge-no pipeline fill delay-critical for deterministic control loops. |
| SPI-compatible daisy-chain mode | Allows synchronous readout of multiple LTC2378IMS-16#TRPBF devices using one SCK and SDO line, reducing PCB routing complexity. |
| Internal conversion clock | Removes requirement for external master clock source and associated jitter-sensitive layout, simplifying system timing architecture. |
| Auto power-down | Reduces current to ≤0.9 µA between conversions, enabling ultra-low average power in burst-sampling applications. |
Applications
| Medical Imaging Signal Chain | Industrial Process Monitoring |
|---|---|
Use Scenario: Digitizing low-noise CT/PET detector outputs with wide dynamic range and strict THD requirements. IC Role / Device Role / Timing Role: Primary high-resolution ADC capturing analog sensor outputs; synchronized via CNV trigger to detector event timing. Use Value: 97 dB SNR and –122 dB THD ensure accurate energy discrimination; DGC simplifies analog front-end by eliminating negative supply rails. | Use Scenario: High-speed monitoring of motor phase currents, vibration sensors, and pressure transducers in PLC-based control systems. IC Role / Device Role / Timing Role: Real-time analog acquisition node feeding FPGA or microcontroller; uses BUSY signal for interrupt-driven data capture. Use Value: 1 Msps throughput captures fast transients; ±0.5 LSB INL guarantees repeatability in closed-loop feedback; MSOP package fits dense industrial PCB layouts. |
| Portable Test Equipment | Automated Test Equipment (ATE) |
Use Scenario: Battery-powered oscilloscope modules and handheld spectrum analyzers requiring low power and high fidelity. IC Role / Device Role / Timing Role: Core digitizer in compact instrument; leverages auto power-down and 13.5 µW idle current for extended runtime. Use Value: 13.5 mW active power enables >8-hour operation on 2000 mAh Li-ion; 16-bit no-missing-codes ensures waveform integrity during zoom/pan functions. | Use Scenario: Multi-channel parallel sampling in semiconductor test handlers where channel density and timing alignment are critical. IC Role / Device Role / Timing Role: Synchronized ADC in daisy-chain configuration; CHAIN pin enables simultaneous start and correlated readout across 8+ channels. Use Value: Daisy-chain SPI reduces interconnect count by >70% vs. individual interfaces; 460 ns acquisition time supports tight test cycle times. |
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 |
|---|---|---|---|
| ADS8860IDRCT | 16-bit, 1 Msps, but only 92.5 dB SNR (typ) and ±1.5 LSB INL (max); no DGC; requires external clock. | Lacks DGC and lower linearity limit performance in precision DC-coupled systems; better suited for cost-sensitive, lower-fidelity applications. | Select when budget constraints outweigh need for 97 dB SNR or single-supply front-end simplification. |
| AD7960BCPZ-RL7 | 18-bit, 5 Msps, 99.5 dB SNR (typ), but consumes 33 mW at full rate; no DGC; requires external reference and clock. | Higher resolution and speed come at 2.5× power and greater system complexity; unsuitable for battery-operated or thermally constrained designs. | Select only when 18-bit resolution and >1 Msps throughput are mandatory, and thermal/power budgets allow. |
Compared with ADS8860IDRCT and AD7960BCPZ-RL7, the LTC2378IMS-16#TRPBF uniquely balances 16-bit precision, 97 dB SNR, ultra-low power, and integrated DGC-making it optimal for industrial and portable systems where accuracy, efficiency, and analog simplicity must coexist.
Availability
LTC2378IMS-16#TRPBF is available at Aetrix Electronics and suitable for medical imaging signal chains, industrial process monitoring, and portable test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC2378IMS-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 technologies, serving industrial, automotive, communications, and healthcare markets.
The LTC2378IMS-16#TRPBF belongs to ADI's legacy Linear Technology precision SAR ADC product line, engineered specifically for applications demanding high SNR, low power, and simplified analog front-end design in harsh environments.
FAQ
What is the operating temperature range for the LTC2378IMS-16#TRPBF?
The LTC2378IMS-16#TRPBF is specified for operation from –40°C to +85°C, meeting industrial-grade reliability requirements. This is confirmed by its "I" grade marking in the order information table and validated across all key specifications including INL, SNR, and power consumption in the Electrical Characteristics section.
Does the LTC2378IMS-16#TRPBF require an external clock source?
No, the LTC2378IMS-16#TRPBF features an internal oscillator that sets the conversion time, eliminating the need for an external clock. This is explicitly stated in the Overview and Technical Context sections and verified by timing parameters like tCONV being guaranteed over temperature without external clock dependency.
How does Digital Gain Compression (DGC) function in the LTC2378IMS-16#TRPBF?
In the LTC2378IMS-16#TRPBF, DGC is activated by grounding the REF/DGC pin (Pin 8), which digitally remaps zero-scale to 0.1×VREF and full-scale to 0.9×VREF. For VREF = 5 V, this yields a 0.5 V to 4.5 V input range-allowing single-supply amplifiers like the LT6350 to drive the ADC without negative rails while retaining full 16-bit resolution.
What package type is used for the LTC2378IMS-16#TRPBF?
The LTC2378IMS-16#TRPBF uses a 16-lead plastic MSOP package (3 mm × 4.9 mm), as confirmed in the Order Information table and Pin Configuration diagrams. Unlike the DFN variant (e.g., LTC2378CDE-16), the MSOP version has no exposed thermal pad and is rated for –40°C to +85°C operation.
Can the LTC2378IMS-16#TRPBF interface directly with a 1.8 V microcontroller?
Yes, the LTC2378IMS-16#TRPBF supports 1.8 V logic levels via its OVDD pin (Pin 15), which accepts 1.71 V to 5.25 V. When OVDD = 1.8 V, all digital inputs (CNV, SCK, CHAIN, RDL/SDI) recognize 0.2×OVDD and 0.8×OVDD thresholds, and SDO outputs are compatible with 1.8 V receivers-verified in the Digital Inputs and Outputs table.
LTC2378IMS-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):
- 1M
- 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:
- -
LTC2378IMS-16#TRPBF FAQ
1.How can I place an order for LTC2378IMS-16#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2378IMS-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 LTC2378IMS-16#TRPBF reliable?
The price and inventory of LTC2378IMS-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 LTC2378IMS-16#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2378IMS-16#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2378IMS-16#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2378IMS-16#TRPBF?
LTC2378IMS-16#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2378IMS-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 LTC2378IMS-16#TRPBF?
For technical support, including LTC2378IMS-16#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2378IMS-16#TRPBF requirements.
6.How does Aetrix verify that LTC2378IMS-16#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2378IMS-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 LTC2378IMS-16#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2378IMS-16#TRPBF?
All LTC2378IMS-16#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2378IMS-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 LTC2378IMS-16#TRPBF part is unused and in its original packaging.
Return procedure for LTC2378IMS-16#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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