My Inquiry
My Account
Analog Devices Inc. LTC2378CDE-16#TRPBF
- Part No.:
- LTC2378CDE-16#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-WFDFN Exposed Pad
- Datasheet:
-
LTC2378CDE-16#TRPBF.pdf
- Description:
- IC ADC 16BIT SAR 16DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,512
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC2378CDE-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 high-precision data acquisition in medical imaging and portable instrumentation.
For engineers reviewing the LTC2378CDE-16#TRPBF datasheet, LTC2378CDE-16#TRPBF pinout, LTC2378CDE-16#TRPBF application, or LTC2378CDE-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 0°C to 70°C industrial temperature grade in 4 mm × 3 mm DFN package.
Technical Context
The LTC2378CDE-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-enabling rail-to-rail input swing (e.g., 0.5 V to 4.5 V at 5 V reference) without negative supply for driving amplifiers. The device supports true bipolar input signals and maintains 97 dB SNR across its specified temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with guaranteed no missing codes-ensures monotonicity and full dynamic range utilization in precision measurement systems. |
| Sampling Rate | 1 Msps maximum throughput-supports real-time capture of signals up to 34 MHz input bandwidth without undersampling. |
| SNR | 97 dB typical at fIN = 2 kHz with 5 V reference-delivers >15.8 effective bits for low-noise sensor and instrumentation applications. |
| INL | ±0.5 LSB maximum over temperature-minimizes integral nonlinearity error in closed-loop control and calibration-critical systems. |
| Power Dissipation | 13.5 mW at 1 Msps, 2.25 µW in power-down mode-enables battery-operated designs with thermal headroom in compact enclosures. |
| Reference Range | 2.5 V to 5.1 V-allows flexible scaling from low-voltage sensors to high-dynamic-range industrial transducers. |
| Digital Interface | SPI-compatible with daisy-chain mode and 1.8 V–5 V OVDD-simplifies integration with diverse host processors and multi-channel ADC configurations. |
Pinout & Package
Package: 16-lead (4 mm × 3 mm) plastic DFN with exposed pad (Pin 17), rated for 0°C to 70°C operation. Exposed pad must be soldered to PCB ground plane for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (CHAIN) | Chain mode selector | Low = normal SPI mode (RDL/SDI enables SDO); high = daisy-chain mode (RDL/SDI becomes serial data input). |
| Pin 2 (VDD) | Analog supply | 2.375 V–2.625 V, powers core ADC and internal oscillator-requires 10 µF ceramic bypass to GND. |
| Pins 3, 6, 10, 16 (GND) | Analog/digital ground | Multiple ground pins minimize noise coupling; Pin 17 (exposed pad) is GND and must be connected to PCB ground plane. |
| Pins 4, 5 (IN+, IN–) | Differential analog inputs | Accept ±VREF fully differential signal; input capacitance 45 pF in sample mode-requires low-impedance drive or buffering. |
| Pin 7 (REF) | Reference voltage input | 2.5 V–5.1 V reference source-decoupled with 47 µF X5R ceramic capacitor (0805 size) placed adjacent to pin. |
| Pin 8 (REF/DGC) | Reference/DGC control | Tied to REF = DGC disabled (±VREF input range); tied to GND = DGC enabled (0.1×VREF to 0.9×VREF range). |
| Pin 9 (CNV) | Convert trigger | Rising edge initiates conversion and powers up ADC-no external clock required due to internal oscillator. |
| Pin 11 (BUSY) | Conversion status indicator | High during conversion, low when result ready-enables precise timing of serial readout without polling overhead. |
| Pin 12 (RDL/SDI) | Read enable / serial data input | Function depends on CHAIN state; in chain mode, accepts daisy-chained data from upstream ADC. |
| Pin 13 (SCK) | Serial clock input | Supports up to 100 MHz SCK frequency; timing parameters guaranteed across 1.71 V–5.25 V OVDD range. |
| Pin 14 (SDO) | Serial data output | 2's complement format, MSB-first; tri-state controlled by RDL/SDI in normal mode-enables shared bus topology. |
| Pin 15 (OVDD) | I/O supply | 1.71 V–5.25 V digital interface supply-matches host logic levels (1.8 V/2.5 V/3.3 V/5 V) without level shifters. |
Key Features
| Feature | Design Value |
|---|---|
| Digital Gain Compression (DGC) | Enables single-supply amplifier operation by compressing full-scale input to 10%–90% of ±VREF, eliminating need for negative rail in driver stage. |
| No Cycle Latency | Zero-latency conversion ensures immediate availability of result after CNV rising edge-critical for deterministic real-time control loops. |
| Internal Conversion Clock | Removes dependency on external timing circuitry, simplifying layout and reducing BOM count in space-constrained designs. |
| 16-Bit No Missing Codes | Guaranteed monotonic transfer function across full temperature range-essential for metrology-grade accuracy and calibration traceability. |
| Wide Reference Range | 2.5 V–5.1 V VREF support allows optimization for SNR (higher VREF) or power (lower VREF) without hardware change. |
| Auto Power-Down | Reduces current to 0.9 µA typical between conversions-extends battery life in intermittent-sampling applications like portable diagnostics. |
Applications
| Medical Imaging Signal Chain | Portable High-Speed DAQ |
|---|---|
|
Use Scenario: Digitizing low-noise CT/MRI detector outputs requiring high dynamic range and minimal harmonic distortion. IC Role / Device Role / Timing Role: Primary 16-bit SAR ADC capturing analog front-end signals at up to 1 Msps with 97 dB SNR and –122 dB THD. Use Value: Enables detection of subtle tissue contrast variations via full 16-bit resolution and low aperture jitter (4 ps), directly improving diagnostic confidence. |
Use Scenario: Battery-powered field instruments performing real-time spectral analysis of vibration or acoustic signals. IC Role / Device Role / Timing Role: Core sampling engine with internal clock and auto power-down, synchronized to external triggers via CNV pin. Use Value: Delivers 13.5 mW active power and 2.25 µW standby consumption-extending runtime while maintaining 1 Msps burst capture capability. |
| Industrial Process Monitoring | ATE Test Equipment |
|
Use Scenario: Continuous monitoring of motor phase currents and temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Precision ADC interfaced to isolated amplifiers, leveraging DGC to simplify single-supply signal conditioning. Use Value: ±0.5 LSB INL and guaranteed no missing codes ensure accurate RMS calculation and fault detection over 0°C–70°C operating range. |
Use Scenario: Multi-channel automated test systems validating mixed-signal ICs with tight DC and AC accuracy requirements. IC Role / Device Role / Timing Role: Calibration-grade ADC used in reference measurement paths, often daisy-chained for synchronized sampling. Use Value: Daisy-chain SPI mode enables precise inter-channel skew control (<1 ns) and reduces FPGA pin count in high-density ATE backplanes. |
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, 5 Msps, 2.5 V supply, no DGC, requires external reference buffer; higher power (34 mW at 5 Msps). | Better resolution and speed but lacks integrated DGC and consumes >2× power-suited for lab-grade bench equipment, not portable systems. | Select AD7960BCPZ-RL7 only when 18-bit resolution and >1 Msps throughput are mandatory and power/size constraints are relaxed. |
| ADS8860IDRCT | 16-bit, 1 Msps, 2.5 V supply, no DGC, SPI-only interface (no daisy-chain), lower SNR (92.5 dB), smaller 3 mm × 3 mm WSON package. | Lower cost and footprint but sacrifices 4.5 dB SNR and lacks DGC-acceptable for cost-sensitive industrial monitoring where 92 dB SNR suffices. | Choose ADS8860IDRCT for space-constrained, budget-driven designs where DGC and ultra-low distortion are noncritical. |
Compared with AD7960BCPZ-RL7 and ADS8860IDRCT, the LTC2378CDE-16#TRPBF uniquely balances 16-bit no-missing-codes accuracy, 97 dB SNR, DGC-enabled single-supply interfacing, and 4 mm × 3 mm DFN packaging-making it optimal for portable, battery-efficient, and thermally constrained high-fidelity data acquisition.
Availability
LTC2378CDE-16#TRPBF is available at Aetrix Electronics and suitable for medical imaging signal chains, portable high-speed data acquisition, and industrial process monitoring requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LTC2378CDE-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 LTC2378-16 family was designed for high-accuracy, low-power, high-speed data acquisition in space- and energy-constrained systems-emphasizing ease of use through integrated features like internal clock, DGC, and flexible reference support.
FAQ
What is the operating temperature range for the LTC2378CDE-16#TRPBF?
The LTC2378CDE-16#TRPBF is specified for 0°C to 70°C ambient operation, denoted by the "C" grade in the part number. This range covers commercial and industrial environments where extended temperature tolerance is not required, and it aligns with the DFN package's thermal characteristics and reliability validation.
Does the LTC2378CDE-16#TRPBF require an external clock source?
No, the LTC2378CDE-16#TRPBF integrates an internal oscillator that sets conversion timing, eliminating the need for an external clock. This simplifies system design, reduces component count, and avoids clock distribution noise-especially beneficial in compact PCB layouts where routing integrity is challenging.
How does Digital Gain Compression (DGC) work in the LTC2378CDE-16#TRPBF?
In the LTC2378CDE-16#TRPBF, DGC is activated by grounding the REF/DGC pin (Pin 8), which digitally remaps the full-scale input range from ±VREF to 0.1×VREF–0.9×VREF. For a 5 V reference, this yields a 0.5 V to 4.5 V input span-allowing driver amplifiers to operate from a single 5.5 V supply without negative rails.
What package type is used for the LTC2378CDE-16#TRPBF?
The LTC2378CDE-16#TRPBF uses a 16-lead plastic DFN package measuring 4 mm × 3 mm with an exposed thermal pad (Pin 17). This package provides superior thermal performance versus MSOP variants and is optimized for automated assembly and high-density board layouts.
Can the LTC2378CDE-16#TRPBF interface directly with a 1.8 V microcontroller?
Yes-the LTC2378CDE-16#TRPBF supports 1.8 V to 5 V logic levels on its digital interface via the OVDD supply (Pin 15). When OVDD = 1.8 V, all digital inputs (CNV, SCK, CHAIN, RDL/SDI) and outputs (SDO, BUSY) meet 1.8 V logic thresholds, enabling seamless connection to low-voltage MCUs without level shifters.
LTC2378CDE-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:
- 0°C ~ 70°C
- Supplier Device Package:
- 16-DFN (4x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2378CDE-16#TRPBF FAQ
1.How can I place an order for LTC2378CDE-16#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2378CDE-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 LTC2378CDE-16#TRPBF reliable?
The price and inventory of LTC2378CDE-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 LTC2378CDE-16#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2378CDE-16#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2378CDE-16#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2378CDE-16#TRPBF?
LTC2378CDE-16#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2378CDE-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 LTC2378CDE-16#TRPBF?
For technical support, including LTC2378CDE-16#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2378CDE-16#TRPBF requirements.
6.How does Aetrix verify that LTC2378CDE-16#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2378CDE-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 LTC2378CDE-16#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2378CDE-16#TRPBF?
All LTC2378CDE-16#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2378CDE-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 LTC2378CDE-16#TRPBF part is unused and in its original packaging.
Return procedure for LTC2378CDE-16#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC2378CDE-16#TRPBF Tags
-
ADC081C021CIMKX/NOPB
Texas Instruments
-
MCP3021A5T-E/OT
Microchip Technology
-
TLA2024IRUGR
Texas Instruments
-
MCP3221A5T-E/OT
Microchip Technology
-
MCP3221A5T-I/OT
Microchip Technology
-
MCP3221A4T-E/OT
Microchip Technology
-
MCP3221A6T-E/OT
Microchip Technology
-
MCP3221A0T-E/OT
Microchip Technology
-
MCP3221A1T-E/OT
Microchip Technology
-
ADC121S021CIMFX/NOPB
Texas Instruments
-
MCP3001-I/MS
Microchip Technology
-
MCP3001-I/SN
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
