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Analog Devices Inc. LTC2378IDE-16#TRPBF
- Part No.:
- LTC2378IDE-16#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-WFDFN Exposed Pad
- Datasheet:
-
LTC2378IDE-16#TRPBF.pdf
- Description:
- IC ADC 16BIT SAR 16DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,023
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Product details
Overview
LTC2378IDE-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 2.5 V analog supply and supports 1.8 V–5 V I/O logic, enabling use in high-speed data acquisition systems requiring precision, low power, and wide dynamic range.
For engineers reviewing the LTC2378IDE-16#TRPBF datasheet, LTC2378IDE-16#TRPBF pinout, LTC2378IDE-16#TRPBF application, or LTC2378IDE-16#TRPBF equivalent, key selection criteria include guaranteed 16-bit no-missing-codes operation, digital gain compression (DGC) for single-supply amplifier interfacing, internal conversion clock, daisy-chain SPI interface, and –40°C to +85°C industrial temperature rating in 4 mm × 3 mm DFN package.
Technical Context
The LTC2378IDE-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 timing dependencies, 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-e.g., 0.5 V to 4.5 V for VREF = 5 V-enabling rail-to-rail single-supply amplifier drive without sacrificing resolution. The device supports true bipolar input handling and features 34 MHz –3 dB input bandwidth with 4 ps aperture jitter.
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 | 1 Msps - enables real-time capture of signals up to 500 kHz Nyquist bandwidth with deterministic timing. |
| SNR | 97 dB (typ, fIN = 2 kHz, VREF = 5 V) - supports >15.8 ENOB for high-fidelity signal digitization in instrumentation. |
| INL | ±0.5 LSB (max) - ensures monotonicity and accurate end-point linearity critical for closed-loop control and calibration. |
| Power Dissipation | 13.5 mW at 1 Msps - achieves 13.5 µW in power-down mode, suitable for battery-operated portable test equipment. |
| Input Range | ±VREF, VREF = 2.5 V to 5.1 V - provides flexible scaling for sensor interfaces, medical imaging front-ends, and ATE. |
| Digital Interface | SPI-compatible, 1.8 V–5 V OVDD, daisy-chain mode - simplifies multi-channel synchronization without FPGA logic overhead. |
Pinout & Package
Package: 16-lead (4 mm × 3 mm) plastic DFN with exposed pad (Pin 17 = GND), rated for –40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN+, IN– | Differential analog inputs | Accept ±VREF fully differential signal; 45 pF sampling capacitance and 40 Ω switch RON define settling behavior. |
| REF | Reference voltage input | Defines full-scale range; requires 47 µF X5R ceramic decoupling close to pin for noise immunity. |
| REF/DGC | Reference/Digital Gain Compression control | Ground to enable DGC (0.5 V–4.5 V input range with VREF = 5 V); tie to REF to disable. |
| CNV | Convert trigger input | Rising edge initiates conversion and powers up ADC; no external clock required due to internal oscillator. |
| BUSY | Conversion status indicator | Active-high open-drain output signals conversion progress; used for timing handshaking in microcontroller systems. |
| SDO, SCK, RDL/SDI, CHAIN | SPI serial interface signals | Support 100 MHz SCK (10 ns period); CHAIN high enables daisy-chain mode for multi-ADC readout on shared bus. |
| VDD, OVDD, GND | Analog/digital supplies and ground | VDD = 2.375–2.625 V (2.5 V nominal); OVDD = 1.71–5.25 V; exposed pad must be soldered to PCB ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Digital Gain Compression (DGC) | Eliminates need for negative supply in driving amplifiers by remapping full-scale to 10%–90% of ±VREF, enabling single 5.5 V rail operation. |
| No cycle latency / zero pipeline delay | Delivers first valid conversion result immediately after CNV rising edge-critical for time-triggered control loops and burst-mode acquisition. |
| Internal conversion clock | Removes dependency on external timing circuitry; simplifies PCB layout and reduces BOM count in space-constrained designs. |
| Guaranteed operation to 85°C | Validated performance over full industrial temperature range (–40°C to +85°C), supporting deployment in factory automation and outdoor instrumentation. |
| Low aperture jitter (4 ps) | Minimizes sampling uncertainty, preserving SFDR >123 dB and enabling high-resolution spectral analysis of fast transient signals. |
Applications
| Medical Imaging Front-End | High-Speed Industrial Data Acquisition |
|---|---|
|
Use Scenario: Digitizing ultrasound echo signals or MRI gradient waveforms requiring wide dynamic range and low distortion. IC Role / Device Role / Timing Role: Primary 16-bit SAR ADC capturing baseband analog data at 1 Msps with 97 dB SNR and <±0.5 LSB INL. Use Value: DGC allows single-supply LT6350 driver operation, reducing system power and board area versus dual-rail alternatives. |
Use Scenario: Real-time monitoring of motor current/voltage, vibration, or thermal sensors in PLCs and predictive maintenance gateways. IC Role / Device Role / Timing Role: High-accuracy, low-latency ADC interfaced via SPI daisy-chain to MCU for synchronized multi-channel sampling. Use Value: Internal clock and no-cycle-latency operation eliminate timing skew across channels, improving phase coherence. |
| Portable Test & Measurement Equipment | Automated Test Equipment (ATE) |
|
Use Scenario: Battery-powered oscilloscope modules or handheld spectrum analyzers needing precision, low power, and compact footprint. IC Role / Device Role / Timing Role: Core ADC delivering 16-bit resolution with 13.5 µW standby power and 4 mm × 3 mm DFN packaging. Use Value: Power-down scaling enables >10-hour runtime on small Li-ion cells while maintaining fast wake-up response. |
Use Scenario: Pin-electronics channel in semiconductor ATE systems requiring deterministic timing, high linearity, and thermal stability. IC Role / Device Role / Timing Role: Precision digitizer with guaranteed –40°C to +85°C operation and ±0.5 LSB INL for production-grade calibration traceability. Use Value: 34 MHz input bandwidth and 4 ps aperture jitter support accurate characterization of high-speed digital I/O waveforms. |
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, 5 Msps, 2.5 V supply, SPI interface; higher resolution/speed but 25 mW power at 5 Msps and no DGC feature. | Used where >16-bit ENOB is mandatory (e.g., metrology standards labs); less suitable for single-supply amplifier drive. | Select when absolute resolution >16-bit and throughput >1 Msps are required; verify thermal management for 25 mW dissipation. |
| ADS8860IRGET | 16-bit, 1 Msps, 2.5–5 V supply, SPI; 11.5 mW at 1 Msps, no DGC, only 92 dB SNR, rated –40°C to +85°C in 20-pin VQFN. | Lower-cost alternative for non-critical industrial sensing; lacks DGC and SNR headroom for demanding spectral applications. | Choose for cost-sensitive, lower-performance data loggers where 92 dB SNR suffices and dual-supply drivers are acceptable. |
Compared with AD7960BCPZ-RL7 and ADS8860IRGET, the LTC2378IDE-16#TRPBF uniquely balances 16-bit accuracy, 1 Msps speed, ultra-low 13.5 mW power, and DGC-enabled single-supply interface-making it optimal for portable, thermally constrained, and amplifier-simplified systems.
Availability
LTC2378IDE-16#TRPBF is available at Aetrix Electronics and suitable for medical imaging front-ends, industrial process controllers, and portable instrumentation requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature grade.
Supply support for LTC2378IDE-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 LTC2378IDE-16#TRPBF belongs to ADI's legacy Linear Technology precision SAR ADC family, engineered for applications demanding high speed, low power, and exceptional DC/AC accuracy-including portable instrumentation, ATE, and medical diagnostics.
FAQ
What is the operating temperature range for the LTC2378IDE-16#TRPBF?
The LTC2378IDE-16#TRPBF is specified for operation from –40°C to +85°C, meeting industrial temperature requirements. This rating is confirmed in the Absolute Maximum Ratings table and validated across all electrical specifications including INL, SNR, and power consumption within that range.
Does the LTC2378IDE-16#TRPBF require an external clock for conversion timing?
No, the LTC2378IDE-16#TRPBF includes an internal oscillator that sets the conversion time, eliminating the need for an external clock source. This simplifies system design and improves timing robustness-only the CNV rising edge is required to initiate each conversion.
How does Digital Gain Compression (DGC) function in the LTC2378IDE-16#TRPBF?
Digital Gain Compression in the LTC2378IDE-16#TRPBF is enabled by grounding the REF/DGC pin. It digitally remaps the full-scale input range from ±VREF to 0.1×VREF to 0.9×VREF, e.g., 0.5 V–4.5 V for VREF = 5 V-allowing single-supply amplifier drive while preserving full 16-bit resolution.
What package type and pin count does the LTC2378IDE-16#TRPBF use?
The LTC2378IDE-16#TRPBF uses a 16-lead plastic DFN package measuring 4 mm × 3 mm with an exposed thermal pad (Pin 17 = GND). This compact, thermally efficient package supports high-density PCB layouts and requires soldering the exposed pad to the ground plane for proper thermal and electrical performance.
Can the LTC2378IDE-16#TRPBF interface directly with a 1.8 V microcontroller SPI port?
Yes, the LTC2378IDE-16#TRPBF supports 1.8 V logic levels via its OVDD supply pin. When OVDD is set to 1.8 V, all digital I/O pins (SDO, SCK, RDL/SDI, BUSY, CHAIN, CNV) operate at compatible voltage thresholds-ensuring reliable SPI communication with 1.8 V microcontrollers without level-shifting circuitry.
LTC2378IDE-16#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-WFDFN Exposed Pad
- 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-DFN (4x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2378IDE-16#TRPBF FAQ
1.How can I place an order for LTC2378IDE-16#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2378IDE-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 LTC2378IDE-16#TRPBF reliable?
The price and inventory of LTC2378IDE-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 LTC2378IDE-16#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2378IDE-16#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2378IDE-16#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2378IDE-16#TRPBF?
LTC2378IDE-16#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2378IDE-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 LTC2378IDE-16#TRPBF?
For technical support, including LTC2378IDE-16#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2378IDE-16#TRPBF requirements.
6.How does Aetrix verify that LTC2378IDE-16#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2378IDE-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 LTC2378IDE-16#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2378IDE-16#TRPBF?
All LTC2378IDE-16#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2378IDE-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 LTC2378IDE-16#TRPBF part is unused and in its original packaging.
Return procedure for LTC2378IDE-16#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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