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Analog Devices Inc. LTC2376IDE-16#TRPBF
- Part No.:
- LTC2376IDE-16#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-WFDFN Exposed Pad
- Datasheet:
-
LTC2376IDE-16#TRPBF.pdf
- Description:
- IC ADC 16BIT SAR 16DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,488
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Product details
Overview
LTC2376IDE-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). Operating from a 2.5V supply and consuming only 3.4mW at full speed, it delivers no missing codes and zero cycle latency-ideal for high-speed data acquisition in portable instrumentation and industrial process control.
For engineers reviewing the LTC2376IDE-16#TRPBF datasheet, LTC2376IDE-16#TRPBF pinout, LTC2376IDE-16#TRPBF application, or LTC2376IDE-16#TRPBF equivalent, key selection criteria include guaranteed 16-bit linearity over –40°C to +85°C, digital gain compression (DGC) enabling single-supply amplifier drive, SPI-compatible daisy-chain interface, and 4mm × 3mm DFN package with exposed thermal pad.
Technical Context
The LTC2376IDE-16#TRPBF implements a charge redistribution capacitor DAC architecture with internal conversion clock, eliminating external timing dependencies. Its fully differential input stage supports common-mode rejection up to 86dB at 125kHz and accepts input voltages from –0.05V to VREF + 0.05V per pin.
Digital gain compression (DGC) is controlled via the REF/DGC pin: grounded to map full-scale input from 0.1·VREF to 0.9·VREF (e.g., 0.5V–4.5V at VREF = 5V), preserving 16-bit resolution while relaxing analog driver supply requirements. The device features auto power-down between conversions, scaling quiescent current to sampling rate.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit-guarantees no missing codes across full temperature range (–40°C to +85°C). |
| Sampling Rate | 250ksps-enables real-time capture of signals up to 125kHz Nyquist bandwidth. |
| SNR | 97dB at fIN = 2kHz, VREF = 5V-supports >15.8 effective bits for precision measurement systems. |
| INL | ±0.5LSB max-ensures monotonicity and accurate end-point calibration in closed-loop control. |
| Power Dissipation | 3.4mW at 250ksps, 3.4µW at 250sps-enables battery operation with dynamic power scaling. |
| Input Range | ±VREF fully differential, VREF adjustable 2.5V–5.1V-allows flexible signal conditioning and reference optimization. |
| Digital Interface | SPI-compatible with 1.8V–5V OVDD logic-interoperates with diverse host processors without level shifters. |
Pinout & Package
Package: 16-lead (4mm × 3mm) plastic DFN with exposed thermal pad (Pin 17), rated for –40°C to +85°C operation. Exposed pad must be soldered to PCB ground plane for thermal and electrical performance.
| 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; bypass with 10µF ceramic capacitor to GND for noise immunity. |
| GND (3,6,10,16) | Ground reference | Four dedicated ground pins minimize ground bounce; exposed pad (Pin 17) is additional GND connection. |
| IN+, IN– (4,5) | Differential analog inputs | Accept ±VREF swing; input capacitance 45pF (sample), 5pF (hold); require low-impedance drive for settling. |
| REF (7) | Reference voltage input | 2.5V–5.1V external reference; decouple with 47µF X5R ceramic capacitor close to pin. |
| REF/DGC (8) | DGC enable/control | Tied to GND enables digital gain compression (0.1–0.9·VREF range); tied to REF disables DGC (full ±VREF range). |
| CNV (9) | Convert trigger | Rising edge initiates conversion and powers up ADC; no minimum pulse width required. |
| BUSY (11) | Conversion status | Active-high open-drain output indicates conversion in progress; synchronous with SCK in chain mode. |
| RDL/SDI (12) | Serial I/O control/data | Function depends on CHAIN state; supports bidirectional SPI communication or daisy-chain input. |
| SCK (13) | Serial clock | Up to 100MHz clock (10ns period); rising edge clocks out MSB-first 2's complement data on SDO. |
| SDO (14) | Serial data output | Tri-stateable output; drives conversion result or daisy-chain data; compatible with 1.8V–5V logic levels. |
| OVDD (15) | Digital I/O supply | 1.71V–5.25V logic supply; sets VIH/VIL thresholds; bypass with 0.1µF ceramic capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay / zero cycle latency | Enables deterministic real-time control loops without output buffering or timing uncertainty. |
| Digital Gain Compression (DGC) | Eliminates need for negative supply in front-end amplifiers by mapping full-scale to 10%–90% of VREF range. |
| Internal conversion oscillator | Removes dependency on external clock source, simplifying layout and reducing BOM count. |
| Auto power-down between conversions | Reduces average power proportionally to sampling rate-3.4µW at 250sps extends battery life. |
| Guaranteed operation to 85°C | Validated performance across industrial temperature range without derating or thermal throttling. |
Applications
| Medical Imaging Signal Chain | Portable Data Logger |
|---|---|
Use Scenario: Digitizing low-noise analog outputs from ultrasound transducer front-ends or MRI gradient monitoring circuits. IC Role / Device Role / Timing Role: High-fidelity 16-bit SAR ADC capturing baseband signals with 97dB SNR and minimal harmonic distortion. Use Value: Preserves diagnostic image fidelity through guaranteed ±0.5LSB INL and –125dB THD at 2kHz, enabling accurate tissue differentiation. | Use Scenario: Battery-powered environmental sensor node recording temperature, pressure, and vibration over extended periods. IC Role / Device Role / Timing Role: Low-power, high-accuracy ADC performing periodic 250ksps bursts followed by deep sleep. Use Value: 3.4µW standby current and auto power-down reduce average system power, extending field deployment to >1 year on coin cell. |
| Industrial Process Controller | Automated Test Equipment (ATE) |
Use Scenario: Closed-loop feedback acquisition in PLC analog I/O modules requiring precise 4–20mA or ±10V signal digitization. IC Role / Device Role / Timing Role: Precision ADC interfacing with isolated analog front-ends and microcontroller SPI peripherals. Use Value: Fully differential input with 86dB CMRR rejects common-mode noise from motor drives and switching power supplies. | Use Scenario: High-throughput parametric testing of semiconductor devices using synchronized multi-channel sampling. IC Role / Device Role / Timing Role: SPI daisy-chainable ADC enabling time-aligned acquisition across multiple channels without inter-channel skew. Use Value: Daisy-chain mode allows up to 16 devices on one SPI bus with deterministic BUSY timing, reducing controller GPIO count and PCB routing complexity. |
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, requires external reference and separate analog/digital supplies; no DGC feature. | Higher resolution/speed but higher power (34mW) and more complex supply sequencing. | Select when >16-bit resolution and >1MSPS throughput are mandatory; avoid if DGC or ultra-low power is critical. |
| ADS8860IRGET | 16-bit, 1MSPS, 1.8V supply only, no daisy-chain mode, lower SNR (92.5dB). | Optimized for ultra-low-voltage systems; lacks DGC and industrial temperature grade. | Select for compact 1.8V-only designs where 250ksps is sufficient and DGC is unnecessary. |
Compared with AD7960BCPZ-RL7 and ADS8860IRGET, the LTC2376IDE-16#TRPBF uniquely balances 250ksps speed, 97dB SNR, DGC-enabled single-supply drive, and industrial temperature support in a thermally enhanced DFN package-making it optimal for portable, battery-constrained, and noise-sensitive measurement systems.
Availability
LTC2376IDE-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 with guaranteed long-term availability and traceable sourcing.
Supply support for LTC2376IDE-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 LTC2376IDE-16#TRPBF belongs to ADI's legacy Linear Technology precision SAR ADC product line, designed specifically for applications demanding high DC accuracy, low power, and robust AC performance in space- and power-constrained environments.
FAQ
What is the operating temperature range for the LTC2376IDE-16#TRPBF?
The LTC2376IDE-16#TRPBF is specified for operation from –40°C to +85°C. This industrial-grade temperature range is validated across all key parameters including INL, SNR, and power consumption, ensuring reliable performance in harsh environments such as factory automation and outdoor instrumentation without derating.
Does the LTC2376IDE-16#TRPBF support daisy-chain configuration?
Yes, the LTC2376IDE-16#TRPBF supports daisy-chain mode via the CHAIN pin (Pin 1). When CHAIN is high, RDL/SDI becomes a serial data input, allowing multiple LTC2376IDE-16#TRPBF devices to share a single SPI bus. The BUSY signal remains synchronized, enabling precise multi-channel timing alignment without external triggers.
How does Digital Gain Compression (DGC) function in the LTC2376IDE-16#TRPBF?
Digital Gain Compression (DGC) in the LTC2376IDE-16#TRPBF is enabled by grounding the REF/DGC pin (Pin 8). This remaps the full-scale input range from ±VREF to 0.1·VREF to 0.9·VREF (e.g., 0.5V–4.5V at 5V reference), eliminating the need for negative supply rails in driving amplifiers while preserving full 16-bit resolution and linearity.
What package type and thermal characteristics does the LTC2376IDE-16#TRPBF use?
The LTC2376IDE-16#TRPBF uses a 16-lead 4mm × 3mm plastic DFN package with an exposed thermal pad (Pin 17). The pad must be soldered to the PCB ground plane to achieve θJA = 40°C/W, enabling reliable operation at full 250ksps throughput in ambient temperatures up to +85°C without forced airflow.
Can the LTC2376IDE-16#TRPBF operate with a 1.8V I/O supply?
Yes, the LTC2376IDE-16#TRPBF supports OVDD from 1.71V to 5.25V, including 1.8V logic levels. With OVDD = 1.8V, VIH is 1.44V min and VIL is 0.36V max-ensuring compatibility with modern low-voltage microcontrollers and FPGAs without level-shifting circuitry.
LTC2376IDE-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:
- -40°C ~ 85°C
- Supplier Device Package:
- 16-DFN (4x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2376IDE-16#TRPBF FAQ
1.How can I place an order for LTC2376IDE-16#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2376IDE-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 LTC2376IDE-16#TRPBF reliable?
The price and inventory of LTC2376IDE-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 LTC2376IDE-16#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2376IDE-16#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2376IDE-16#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2376IDE-16#TRPBF?
LTC2376IDE-16#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2376IDE-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 LTC2376IDE-16#TRPBF?
For technical support, including LTC2376IDE-16#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2376IDE-16#TRPBF requirements.
6.How does Aetrix verify that LTC2376IDE-16#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2376IDE-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 LTC2376IDE-16#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2376IDE-16#TRPBF?
All LTC2376IDE-16#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2376IDE-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 LTC2376IDE-16#TRPBF part is unused and in its original packaging.
Return procedure for LTC2376IDE-16#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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