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Analog Devices Inc. LTC2376IDE-16#PBF
- Part No.:
- LTC2376IDE-16#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-WFDFN Exposed Pad
- Datasheet:
-
LTC2376IDE-16#PBF.pdf
- Description:
- IC ADC 16BIT SAR 16DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,813
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Product details
Overview
LTC2376IDE-16#PBF 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, fully differential ±VREF input (2.5V–5.1V), and digital gain compression (DGC) for single-supply amplifier interfacing. It operates from a 2.5V VDD supply and consumes only 3.4mW at full throughput, targeting high-speed data acquisition in industrial and medical instrumentation.
For engineers reviewing the LTC2376IDE-16#PBF datasheet, LTC2376IDE-16#PBF pinout, LTC2376IDE-16#PBF application, or LTC2376IDE-16#PBF equivalent, key selection criteria include guaranteed 16-bit no-missing-codes operation, daisy-chain SPI interface compatibility across 1.8V–5V logic levels, internal conversion clock, −40°C to +85°C temperature range, and DGC-enabled 0.5V–4.5V input range with 5V reference.
Technical Context
The LTC2376IDE-16#PBF implements a charge-redistribution SAR architecture with a 16-bit CDAC and differential comparator, supporting zero-cycle-latency conversions via internal oscillator timing. Its fully differential input stage accepts ±VREF signals with 34MHz −3dB bandwidth and 4ps aperture jitter, enabling accurate digitization of fast transient or high-frequency analog waveforms.
Digital gain compression (DGC) is controlled by the REF/DGC pin: when grounded, it remaps the ADC's full-scale range from ±VREF to 0.1×VREF to 0.9×VREF (e.g., 0.5V–4.5V at VREF = 5V), eliminating need for negative supply on driving amplifiers while preserving 16-bit resolution and linearity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 65,536 discrete output codes with guaranteed no missing codes across full temperature range |
| Sampling Rate | 250ksps - supports real-time capture of signals up to ~125kHz Nyquist bandwidth without pipeline delay |
| SNR | 97dB (typ, fIN = 2kHz, VREF = 5V) - enables >15.8 effective number of bits (ENOB) in low-noise signal chains |
| INL | ±0.5LSB (max) - ensures monotonicity and precision in closed-loop control or calibration applications |
| Power Consumption | 3.4mW at 250ksps - allows battery-powered portable instrumentation with minimal thermal load |
| Reference Range | 2.5V to 5.1V - permits flexible system-level scaling using standard voltage references or DAC outputs |
| Digital I/O Voltage | 1.8V to 5V - interoperates directly with FPGA, MCU, or DSP I/O banks without level-shifting circuitry |
Pinout & Package
Package: 16-lead (4mm × 3mm) plastic DFN with exposed pad (Pin 17 = GND). Thermal resistance θJA = 40°C/W. Exposed pad must be soldered to PCB ground plane for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CHAIN (1) | Mode selector | High enables daisy-chain SPI mode; low configures RDL/SDI as bus enable for standalone operation |
| VDD (2) | Analog power supply | 2.375V–2.625V supply for core ADC; requires 10µF ceramic bypass to GND |
| GND (3,6,10,16) | Analog/digital ground | Multiple dedicated ground pins minimize noise coupling between analog and digital sections |
| IN+, IN– (4,5) | Differential analog inputs | Accept ±VREF input with 45pF sampling capacitance and 40Ω switch RON; support common-mode range centered at VREF/2 ±0.1V |
| REF (7) | Reference voltage input | 2.5V–5.1V external reference; decoupled with 47µF X5R capacitor at pin |
| REF/DGC (8) | DGC enable/control | Ground to activate digital gain compression (0.1–0.9×VREF input range); tie to REF to disable |
| CNV (9) | Convert trigger | Rising edge initiates conversion and powers up ADC; auto-power-down occurs between conversions |
| BUSY (11) | Conversion status indicator | Active-high open-drain output signaling conversion in progress; used for timing synchronization |
| 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 input | Supports up to 100MHz SCK frequency; defines timing for SDO data output and SDI sampling |
| SDO (14) | Serial data output | 2's complement 16-bit result shifted MSB-first on SCK rising edges; tri-state when RDL = low |
| OVDD (15) | I/O power supply | 1.71V–5.25V digital interface supply; independent of VDD; bypassed with 0.1µF capacitor |
| GND (17, exposed pad) | Thermal/electrical ground | DFN-specific exposed pad; mandatory solder connection to PCB ground plane for thermal dissipation and noise reduction |
Key Features
| Feature | Design Value |
|---|---|
| Digital Gain Compression (DGC) | Enables single-supply operation of driving amplifiers (e.g., LT6350) by mapping full-scale input from ±VREF to 0.1–0.9×VREF, preserving 16-bit resolution without hardware gain adjustment |
| No Cycle Latency | Delivers first valid conversion result immediately after CNV rising edge-no pipeline delay-critical for deterministic real-time control loops |
| Daisy-Chain SPI Interface | Allows multiple LTC2376IDE-16#PBF devices to share one SCK/SCK line and reduce host GPIO count, simplifying multi-channel synchronized acquisition |
| Auto Power-Down | Reduces current to 0.9µA between conversions, scaling power linearly with sample rate-enables ultra-low-power modes down to 250sps (3.4µW) |
| Guaranteed Operation to 85°C | Specified over −40°C to +85°C ambient (I-grade), validated for industrial environments including process control and field-deployed test equipment |
Applications
| Medical Imaging Signal Acquisition | Industrial Process Control Monitoring |
|---|---|
Use Scenario: Digitizing low-amplitude, high-fidelity analog signals from ultrasound transducer front-ends or MRI gradient coil sensors. IC Role / Device Role / Timing Role: Primary high-resolution ADC capturing time-critical waveform data at 250ksps with <4ps aperture jitter and 97dB SNR to preserve diagnostic image fidelity. Use Value: Enables detection of subtle tissue contrast variations through 16-bit ENOB >15.8, supported by DGC for simplified single-supply analog front-end design. | Use Scenario: High-precision monitoring of temperature, pressure, and flow sensor outputs in distributed PLC I/O modules. IC Role / Device Role / Timing Role: Isolated channel ADC providing calibrated 16-bit measurements with ±0.5LSB INL and no missing codes for closed-loop feedback stability. Use Value: Ensures sub-0.001% measurement accuracy across −40°C to +85°C, reducing recalibration frequency and improving long-term system reliability. |
| Portable Battery-Powered Test Equipment | Automated Test Equipment (ATE) |
Use Scenario: Handheld oscilloscopes or multimeters requiring extended runtime and high dynamic range in compact form factor. IC Role / Device Role / Timing Role: Low-power SAR ADC delivering 250ksps throughput with only 3.4mW consumption and automatic power-down during idle periods. Use Value: Extends battery life while maintaining 97dB SNR and 16-bit resolution-critical for field technicians needing lab-grade accuracy off-grid. | Use Scenario: Multi-channel parallel sampling in semiconductor wafer testers where channel-to-channel skew and timing determinism are critical. IC Role / Device Role / Timing Role: Synchronized ADC node in daisy-chain configuration, leveraging BUSY/CNV timing and zero-latency conversion for precise stimulus-response capture. Use Value: Eliminates inter-channel skew via shared CNV and internal clocking, enabling <1ns timing correlation across 8+ channels in production test fixtures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, low-power SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7960BCPZ-RL7 | 18-bit, 5Msps, 2.5V supply, no DGC, SPI-only (no daisy-chain), higher power (47mW) | Targets ultra-high-resolution applications (>16-bit) where speed justifies increased power and board area | Select AD7960BCPZ-RL7 only when 18-bit resolution and 5Msps throughput are required; not drop-in due to different pinout, higher supply current, and absence of DGC |
| ADS8860IRGET | 16-bit, 1MSPS, 2.5–5V supply, no DGC, pseudo-differential input, lower SNR (92dB), smaller 3mm × 3mm QFN | Suitable for cost-sensitive, space-constrained designs where 1MSPS and moderate SNR suffice | Choose ADS8860IRGET for higher sample rates in compact layouts but accept trade-offs in SNR, differential input capability, and DGC functionality |
Compared with AD7960BCPZ-RL7 and ADS8860IRGET, the LTC2376IDE-16#PBF uniquely balances 250ksps speed, 97dB SNR, DGC-enabled single-supply drive, and −40°C to +85°C operation in a thermally optimized DFN package-making it optimal for industrial and portable instrumentation where power, precision, and interface flexibility are co-constrained.
Availability
LTC2376IDE-16#PBF is available at Aetrix Electronics and suitable for industrial process control monitoring, portable battery-powered test equipment, and medical imaging signal acquisition requiring stable component supply, extended temperature support, and long-term lifecycle continuity.
Supply support for LTC2376IDE-16#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 technologies, formed through the acquisition of Linear Technology in 2017.
The LTC2376IDE-16#PBF belongs to ADI's precision SAR ADC product line, designed specifically for high-speed, low-power, high-dynamic-range data acquisition in industrial, medical, and test equipment where accuracy, thermal robustness, and interface simplicity are essential.
FAQ
What is the operating temperature range of the LTC2376IDE-16#PBF?
The LTC2376IDE-16#PBF is rated for operation from −40°C to +85°C (I-grade), verified across all electrical specifications including INL, SNR, and power consumption. This range supports deployment in industrial control cabinets, outdoor test gear, and medical portable devices without derating.
Does the LTC2376IDE-16#PBF require an external clock source?
No, the LTC2376IDE-16#PBF features an internal oscillator that sets conversion timing, eliminating need for external clock generation. The internal clock ensures consistent 250ksps throughput and removes timing jitter concerns associated with external clock distribution-critical for repeatable FFT performance.
How does Digital Gain Compression (DGC) function in the LTC2376IDE-16#PBF?
Digital Gain Compression (DGC) in the LTC2376IDE-16#PBF is activated by grounding the REF/DGC pin (Pin 8), which digitally remaps the full-scale input range from ±VREF to 0.1×VREF to 0.9×VREF. For VREF = 5V, this yields a 0.5V–4.5V input span-allowing use of single-supply amplifiers like the LT6350 without negative rails while retaining full 16-bit resolution.
Can the LTC2376IDE-16#PBF interface directly with a 1.8V microcontroller?
Yes, the LTC2376IDE-16#PBF supports 1.8V logic levels via its OVDD supply (Pin 15), which accepts 1.71V–5.25V. When OVDD = 1.8V, all digital I/O pins (SCK, SDO, SDI/RDL, BUSY, CNV, CHAIN) operate at 1.8V-compatible voltage thresholds, enabling direct connection to 1.8V FPGAs or MCUs without level shifters.
What package type is used for the LTC2376IDE-16#PBF?
The LTC2376IDE-16#PBF uses a 16-lead (4mm × 3mm) plastic DFN package with exposed thermal pad (Pin 17 = GND). This package offers θJA = 40°C/W and requires soldering the exposed pad to the PCB ground plane for optimal thermal performance and signal integrity-distinct from the MSOP variant (e.g., LTC2376IMS-16#PBF).
LTC2376IDE-16#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-WFDFN Exposed Pad
- Packaging:
- Tube
- 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:
- -40°C ~ 85°C
- Supplier Device Package:
- 16-DFN (4x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2376IDE-16#PBF FAQ
1.How can I place an order for LTC2376IDE-16#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2376IDE-16#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 LTC2376IDE-16#PBF reliable?
The price and inventory of LTC2376IDE-16#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2376IDE-16#PBF is usually 5 days.
3.What payment methods are accepted for LTC2376IDE-16#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2376IDE-16#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2376IDE-16#PBF?
LTC2376IDE-16#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2376IDE-16#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 LTC2376IDE-16#PBF?
For technical support, including LTC2376IDE-16#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2376IDE-16#PBF requirements.
6.How does Aetrix verify that LTC2376IDE-16#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2376IDE-16#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 LTC2376IDE-16#PBF meets industry standards.
7.What is the process for return or replacement of LTC2376IDE-16#PBF?
All LTC2376IDE-16#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2376IDE-16#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 LTC2376IDE-16#PBF part is unused and in its original packaging.
Return procedure for LTC2376IDE-16#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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