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Analog Devices Inc. LTC2376CDE-16#TRPBF
- Part No.:
- LTC2376CDE-16#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-WFDFN Exposed Pad
- Datasheet:
-
LTC2376CDE-16#TRPBF.pdf
- Description:
- IC ADC 16BIT SAR 16DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,616
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Product details
Overview
LTC2376CDE-16#TRPBF from Analog Devices (formerly Linear Technology) is a 16-bit, 250ksps successive approximation register (SAR) analog-to-digital converter with ±0.5LSB INL max, 97dB SNR at 2kHz, and fully differential ±VREF input range (2.5V–5.1V). It operates from a single 2.5V supply, consumes only 3.4mW at full speed, and features digital gain compression (DGC) for single-supply amplifier interfacing - used in high-speed data acquisition and portable instrumentation.
For engineers reviewing the LTC2376CDE-16#TRPBF datasheet, LTC2376CDE-16#TRPBF pinout, LTC2376CDE-16#TRPBF application, or LTC2376CDE-16#TRPBF equivalent, key selection criteria include guaranteed 16-bit no-missing-codes operation, daisy-chain SPI interface compatibility, internal conversion clock, 125°C-rated H-grade variants, and DGC-enabled 0.5V–4.5V input range with 5V reference.
Technical Context
The LTC2376CDE-16#TRPBF implements a charge redistribution capacitor DAC (CDAC) architecture with differential comparator and 16-bit successive approximation logic. Conversion timing is governed by an internal oscillator (no external clock required), delivering fixed 1.9–3µs conversion time and zero cycle latency.
Its dual-domain power system separates analog (VDD = 2.5V) and digital I/O (OVDD = 1.8V–5.25V) supplies, enabling interoperability with mixed-voltage host systems. Digital gain compression is controlled via the REF/DGC pin, dynamically remapping full-scale from ±VREF to 0.1×VREF–0.9×VREF without hardware modification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 65,536 discrete output levels with guaranteed no missing codes. |
| Sampling Rate | 250ksps - supports real-time capture of signals up to 125kHz Nyquist bandwidth. |
| SNR | 97dB (typ, fIN = 2kHz, VREF = 5V) - enables >15.8 effective bits of dynamic resolution. |
| INL | ±0.5LSB (max) - ensures monotonic transfer function and accurate DC/low-frequency measurement. |
| Power Dissipation | 3.4mW at 250ksps - allows battery-powered operation with thermal headroom in compact DFN package. |
| Digital Interface | SPI-compatible serial I/O with daisy-chain mode - reduces PCB routing complexity in multi-channel systems. |
| Input Range | Fully differential ±VREF (2.5V–5.1V) - supports flexible signal scaling and common-mode rejection up to 86dB. |
Pinout & Package
Package: 16-lead (4mm × 3mm) plastic DFN with exposed pad (Pin 17 = GND, must be soldered to PCB ground plane). Thermal resistance θJA = 40°C/W.
| 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 | 2.5V ±62.5mV supply for core ADC circuitry; bypass with 10µF ceramic capacitor. |
| GND (3,6,10,16) | Ground reference | Four dedicated ground pins minimize ground bounce and improve noise immunity. |
| IN+, IN– (4,5) | Differential analog inputs | Accept ±VREF swing; input capacitance 45pF (sample mode), 5pF (hold mode); RON ≈ 40Ω. |
| REF (7) | Reference voltage input | 2.5V–5.1V external reference; decoupled with 47µF X5R ceramic capacitor (0805 size). |
| REF/DGC (8) | Reference/DGC control | Tied to REF → standard ±VREF range; tied to GND → DGC enabled (0.1–0.9×VREF full-scale). |
| CNV (9) | Convert trigger | Rising edge initiates conversion and powers up ADC; no minimum pulse width requirement. |
| BUSY (11) | Conversion status | High during conversion (1.9–3µs); low when result ready on SDO; synchronous to SCK. |
| RDL/SDI (12) | Serial interface control/data | Bus enable (CHAIN = low) or serial data input (CHAIN = high); compatible with 1.8V–5V logic. |
| SCK (13) | Serial clock | Up to 100MHz SCK frequency; rising-edge sampling; tSCK ≥ 10ns (100MHz max). |
| SDO (14) | Serial data output | 2's complement 16-bit result shifted MSB-first; valid 9.5ns after SCK↑ (CL = 20pF). |
| OVDD (15) | Digital I/O supply | 1.71V–5.25V logic supply; sets VIH/VIL thresholds; bypass with 0.1µF capacitor. |
| GND (17) | Exposed pad ground | Thermal and electrical ground connection; mandatory soldering to PCB ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Digital Gain Compression (DGC) | Eliminates need for negative supply on driving amplifier by mapping full-scale to 0.1–0.9×VREF, enabling single 5.5V rail operation. |
| No Pipeline Delay | Zero-cycle latency ensures deterministic timing - critical for closed-loop control and real-time triggering applications. |
| Auto Power-Down | Reduces current to 0.9µA between conversions, scaling power linearly with sample rate (3.4µW at 250sps). |
| Wide OVDD Compatibility | Supports 1.8V, 2.5V, 3.3V, and 5V host logic without level shifters - simplifies integration with FPGA, MCU, or ASIC interfaces. |
| Guaranteed Operation to 125°C | H-grade variants (e.g., LTC2376HMS-16) are qualified for extended temperature environments including industrial and automotive under-hood. |
Applications
| Medical Imaging Signal Chain | Portable Data Logger |
|---|---|
Use Scenario: Digitizing low-noise, wide-dynamic-range sensor outputs (e.g., ultrasound transducer preamp, MRI gradient monitoring) requiring high fidelity and minimal harmonic distortion. IC Role / Device Role / Timing Role: Primary SAR ADC capturing 16-bit samples at 250ksps with 97dB SNR and –125dB THD to preserve diagnostic signal integrity. Use Value: Enables detection of sub-millivolt physiological signals without amplification-induced noise or distortion, supporting FDA-compliant accuracy requirements. | Use Scenario: Battery-powered environmental monitoring node acquiring temperature, pressure, and vibration data over extended field deployments. IC Role / Device Role / Timing Role: Low-power 16-bit ADC operating at variable sample rates (250sps–250ksps) with auto power-down to extend battery life. Use Value: 3.4µW standby power and 3.4mW active power allow multi-year operation on coin-cell batteries while maintaining 16-bit precision. |
| Industrial Process Controller | Automated Test Equipment (ATE) |
Use Scenario: High-accuracy feedback loop sensing in PLC analog I/O modules measuring current/voltage across motor drives and valve actuators. IC Role / Device Role / Timing Role: Precision ADC with ±0.5LSB INL and 86dB CMRR rejecting common-mode noise in electrically noisy factory environments. Use Value: Maintains calibration stability over temperature (±0.05ppm/°C FSE drift) and eliminates missing codes that could cause control discontinuities. | Use Scenario: Multi-channel parametric test system validating IC performance across voltage, timing, and linearity specifications. IC Role / Device Role / Timing Role: High-speed, low-latency ADC supporting daisy-chained configuration for synchronized sampling across 8+ channels. Use Value: SPI daisy-chain mode reduces interconnect count and board space vs. parallel interfaces, while 250ksps throughput meets production test throughput targets. |
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, LVDS interface; higher speed but requires external reference and clock; no DGC. | Targeted at ultra-high-resolution applications (e.g., spectral analysis) where speed and resolution outweigh power and interface simplicity. | Select AD7960BCPZ-RL7 when >16-bit resolution and >1Msps throughput are mandatory, and system can accommodate LVDS routing and external timing. |
| ADS8860IDRCT | 16-bit, 1MSPS, 2.5–5V supply, SPI interface; lower power (1.5mW), no DGC, smaller 10-pin VSSOP package. | Optimized for cost-sensitive, space-constrained designs where 1MSPS is sufficient and DGC is not required. | Select ADS8860IDRCT for compact, low-cost data loggers where full 250ksps is unnecessary and driver amplifier supply constraints are absent. |
Compared with AD7960BCPZ-RL7 and ADS8860IDRCT, the LTC2376CDE-16#TRPBF uniquely balances 250ksps speed, 97dB SNR, integrated DGC, and ultra-low 3.4mW power in a thermally efficient DFN - making it optimal for portable, battery-aware, and single-supply amplifier-based systems.
Availability
LTC2376CDE-16#TRPBF is available at Aetrix Electronics and suitable for medical imaging signal chains, portable data loggers, and industrial process controllers requiring stable component supply, long-term lifecycle support, and guaranteed 16-bit no-missing-codes performance.
Supply support for LTC2376CDE-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 LTC2376-16 family was designed by Analog Devices to deliver high-precision, low-power SAR ADC performance in compact packages for demanding data acquisition applications - emphasizing noise floor, linearity, and ease of system integration.
FAQ
What is the operating temperature range for the LTC2376CDE-16#TRPBF?
The LTC2376CDE-16#TRPBF is specified for 0°C to 70°C operation (C-grade). This is confirmed in the Order Information table, where "CDE" denotes the commercial temperature grade and DFN package. For extended ranges, consider LTC2376IDE-16#TRPBF (–40°C to 85°C) or LTC2376HMS-16#TRPBF (–40°C to 125°C).
Does the LTC2376CDE-16#TRPBF require an external clock source?
No, the LTC2376CDE-16#TRPBF includes an internal oscillator that sets conversion timing - eliminating external clock dependencies. The tCONV specification (1.9–3µs) is internally generated, easing timing design and reducing BOM count. External SCK is only needed for serial data transfer, not for conversion initiation.
How does Digital Gain Compression (DGC) work on the LTC2376CDE-16#TRPBF?
When the REF/DGC pin is pulled low, the LTC2376CDE-16#TRPBF enables DGC, digitally remapping zero-scale from 0V to 0.1×VREF and full-scale from VREF to 0.9×VREF. With VREF = 5V, this yields a usable input range of 0.5V to 4.5V - allowing the driving amplifier to operate from a single 5.5V supply without negative rails.
What package type is used for the LTC2376CDE-16#TRPBF?
The LTC2376CDE-16#TRPBF uses a 16-lead plastic DFN package measuring 4mm × 3mm with an exposed thermal pad (Pin 17). This package provides superior thermal performance (θJA = 40°C/W) compared to the MSOP variant (θJA = 110°C/W) and is optimized for space-constrained, thermally demanding applications.
Can the LTC2376CDE-16#TRPBF interface directly with a 1.8V microcontroller?
Yes - the LTC2376CDE-16#TRPBF supports 1.8V to 5V logic levels via its OVDD supply pin. When OVDD = 1.8V, VIH = 1.44V (0.8×OVDD) and VIL = 0.36V (0.2×OVDD), ensuring reliable communication with 1.8V MCUs without level-shifting circuitry. All digital pins (SCK, SDO, SDI/RDL, BUSY, CNV, CHAIN) comply with this voltage range.
LTC2376CDE-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):
- 250k
- 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:
- -
LTC2376CDE-16#TRPBF FAQ
1.How can I place an order for LTC2376CDE-16#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2376CDE-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 LTC2376CDE-16#TRPBF reliable?
The price and inventory of LTC2376CDE-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 LTC2376CDE-16#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2376CDE-16#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2376CDE-16#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2376CDE-16#TRPBF?
LTC2376CDE-16#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2376CDE-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 LTC2376CDE-16#TRPBF?
For technical support, including LTC2376CDE-16#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2376CDE-16#TRPBF requirements.
6.How does Aetrix verify that LTC2376CDE-16#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2376CDE-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 LTC2376CDE-16#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2376CDE-16#TRPBF?
All LTC2376CDE-16#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2376CDE-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 LTC2376CDE-16#TRPBF part is unused and in its original packaging.
Return procedure for LTC2376CDE-16#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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