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Analog Devices Inc. LTC2376CDE-16#PBF
- Part No.:
- LTC2376CDE-16#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-WFDFN Exposed Pad
- Datasheet:
-
LTC2376CDE-16#PBF.pdf
- Description:
- IC ADC 16BIT SAR 16DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,532
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Product details
Overview
LTC2376CDE-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, and fully differential ±VREF input range (2.5V to 5.1V reference). Operating from a single 2.5V supply and consuming only 3.4mW, it delivers no missing codes at 16 bits and supports digital gain compression (DGC) for single-supply amplifier interfacing - ideal for high-precision portable instrumentation and medical imaging front-ends.
For engineers reviewing the LTC2376CDE-16#PBF datasheet, LTC2376CDE-16#PBF pinout, LTC2376CDE-16#PBF application, or LTC2376CDE-16#PBF equivalent, key selection considerations include guaranteed 16-bit no-missing-codes performance over 0°C to 70°C, DGC-enabled 0.5V–4.5V input range with 5V reference, SPI-compatible daisy-chain interface, and 4mm × 3mm DFN package with exposed ground pad.
Technical Context
The LTC2376CDE-16#PBF implements a charge-redistribution SAR architecture with internal conversion clock, eliminating external timing dependencies. Its fully differential input stage supports ±VREF operation with 34MHz –3dB bandwidth and 4ps aperture jitter, enabling accurate digitization of high-frequency signals up to Nyquist (125kHz).
Digital gain compression (DGC) is controlled via the REF/DGC pin: when grounded, it remaps zero-scale from 0V to 0.1·VREF and full-scale from VREF to 0.9·VREF - preserving 16-bit resolution while allowing single-supply driver amplifiers (e.g., LT6350) to operate from +5.5V without negative rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees monotonic transfer function and full 65,536-code output range |
| Sampling Rate | 250ksps - enables real-time acquisition of signals up to 125kHz without aliasing |
| SNR | 97dB at fIN = 2kHz, VREF = 5V - supports >15.8 effective bits in low-noise applications |
| INL | ±0.5LSB max - ensures linearity error ≤ ±0.00076% of full scale for precision measurement |
| Power Dissipation | 3.4mW at 250ksps - enables battery-powered designs with thermal headroom in 4mm × 3mm DFN |
| Reference Range | 2.5V to 5.1V - allows flexible system-level scaling from low-voltage sensors to industrial ±5V signal chains |
| Digital Gain Compression | Enabled via REF/DGC = GND - shifts input range to 0.1·VREF–0.9·VREF, enabling single-supply amplifier biasing |
Pinout & Package
Package: 16-lead (4mm × 3mm) plastic DFN with exposed ground pad (Pin 17), rated for 0°C to 70°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CHAIN (1) | Mode selector | Low = normal SPI mode (RDL/SDI as bus enable); high = daisy-chain mode (RDL/SDI as serial data input) |
| VDD (2) | Analog supply | 2.375V–2.625V core supply; requires 10µF ceramic bypass to GND |
| GND (3,6,10,16) | Ground reference | Four dedicated ground pins plus exposed pad (Pin 17) - must be soldered to PCB ground plane for thermal and noise control |
| IN+, IN– (4,5) | Differential analog inputs | ±VREF input range; 45pF sampling capacitance + 40Ω switch RON; common-mode range = VREF/2 ±0.1V |
| REF (7) | Reference voltage input | 2.5V–5.1V external reference; decoupled with 47µF X5R 0805 capacitor |
| REF/DGC (8) | DGC control / reference select | Tied to REF → standard ±VREF range; tied to GND → DGC enabled (0.1–0.9·VREF) |
| CNV (9) | Convert trigger | Rising edge initiates conversion; powers up device and starts acquisition phase |
| BUSY (11) | Conversion status | High during conversion (1.9–3µs); used for timing synchronization or interrupt generation |
| RDL/SDI (12) | Serial interface control/data | Bus enable (CHAIN=low) or daisy-chain input (CHAIN=high); 1.8V–5V logic compatible |
| SCK (13) | Serial clock | Up to 100MHz SCK frequency; rising-edge sampled; supports daisy-chain timing with tSCKCH ≥13.5ns |
| SDO (14) | Serial data output | 2's complement 16-bit result; MSB-first; valid within 9.5ns of SCK↑ (CL=20pF) |
| OVDD (15) | I/O supply | 1.71V–5.25V digital interface supply; independent of VDD; bypass with 0.1µF capacitor |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay or cycle latency | Enables deterministic real-time control loops with immediate data availability after BUSY goes low |
| Internal conversion oscillator | Removes need for external clock source or precise timing circuitry - simplifies layout and reduces BOM count |
| Auto power-down between conversions | Reduces current to 0.9µA (typ) at 250sps - extends battery life in intermittent-sampling systems |
| 1.8V–5V I/O voltage support | Allows direct interfacing with mixed-voltage microcontrollers (e.g., 1.8V FPGA, 3.3V MCU) without level shifters |
| Guaranteed operation to 125°C (H-grade variants) | Validates robustness for industrial and automotive under-hood environments - C-grade (0°C–70°C) meets commercial reliability |
Applications
| Medical Imaging Signal Acquisition | Portable High-Speed Data Loggers |
|---|---|
Use Scenario: Digitizing low-noise, wide-dynamic-range analog outputs from ultrasound transducer arrays or MRI gradient amplifiers. IC Role / Device Role / Timing Role: Primary high-resolution ADC in front-end signal chain; samples at 250ksps with 97dB SNR to preserve diagnostic image fidelity. Use Value: ±0.5LSB INL and no missing codes ensure accurate reconstruction of subtle tissue contrast; DGC enables compact single-supply analog front-end design. | Use Scenario: Battery-powered field instruments capturing vibration, temperature, or acoustic waveforms over extended durations. IC Role / Device Role / Timing Role: Low-power SAR ADC performing continuous 250ksps sampling with auto power-down during idle intervals. Use Value: 3.4mW active power and 0.9µA shutdown current maximize runtime; 4mm × 3mm DFN minimizes PCB footprint in space-constrained enclosures. |
| Industrial Process Control Sensors | Automated Test Equipment (ATE) |
Use Scenario: High-accuracy monitoring of pressure, flow, or strain transducers in factory automation PLC modules. IC Role / Device Role / Timing Role: Precision ADC interfacing with isolated sensor signal conditioners; operates across 0°C–70°C ambient range. Use Value: 2.5V–5.1V reference flexibility accommodates legacy 5V and modern low-voltage sensor outputs; ±VREF differential input rejects common-mode noise on long cables. | Use Scenario: Multi-channel ATE systems requiring synchronized, high-fidelity waveform capture for semiconductor parametric testing. IC Role / Device Role / Timing Role: Channel ADC in daisy-chained configuration; uses CHAIN pin and SDO/SCK timing for deterministic multi-device readout. Use Value: Daisy-chain mode eliminates per-channel SPI lines; 250ksps throughput supports >100k sample/sec aggregate rates across 4+ channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7960BCPZ-RL7 | 18-bit, 5MSPS, 2.5V supply, no DGC, requires external reference buffer | Higher resolution/speed but consumes 34mW - unsuitable for low-power portable use | Select when >16-bit ENOB and sub-100ns conversion time are required; not drop-in due to different pinout and power demands |
| ADS8860IDRCT | 16-bit, 1MSPS, 2.5–5V supply, SPI interface, no DGC, 10ms power-down wake-up | Lower SNR (92.5dB), higher power (7.5mW), slower wake-up - less suitable for burst-mode sensing | Choose for cost-sensitive, moderate-performance applications where DGC and ultra-low standby current are not critical |
Compared with AD7960BCPZ-RL7 and ADS8860IDRCT, the LTC2376CDE-16#PBF uniquely balances 97dB SNR, 3.4mW power, DGC-enabled single-supply drive, and deterministic 250ksps throughput - making it optimal for portable, battery-constrained, high-fidelity acquisition where thermal and board space are constrained.
Availability
LTC2376CDE-16#PBF is available at Aetrix Electronics and suitable for medical imaging signal acquisition, portable high-speed data loggers, and industrial process control sensors requiring stable component supply and guaranteed 0°C to 70°C operation.
Supply support for LTC2376CDE-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, serving industrial, automotive, communications, and healthcare markets.
The LTC2376-16 product line was designed by Linear Technology (acquired by ADI in 2017) to deliver ultra-low-noise, low-power, high-speed SAR ADC performance in miniature packages - specifically targeting portable instrumentation, medical diagnostics, and precision test equipment.
FAQ
What is the operating temperature range for the LTC2376CDE-16#PBF?
The LTC2376CDE-16#PBF is specified for 0°C to 70°C ambient operation. This C-grade temperature range is validated per the manufacturer's datasheet and applies to all electrical specifications unless otherwise noted. The part uses a 4mm × 3mm DFN package with exposed pad, and thermal performance assumes proper PCB copper area for heat dissipation.
Does the LTC2376CDE-16#PBF require an external reference voltage?
Yes, the LTC2376CDE-16#PBF requires an external reference voltage applied to the REF pin, with a supported range of 2.5V to 5.1V. The reference must be low-noise and well-decoupled using a 47µF X5R ceramic capacitor placed close to the REF pin. Internal reference is not provided - the device relies entirely on this external precision reference for full-scale accuracy.
How does digital gain compression (DGC) work on the LTC2376CDE-16#PBF?
Digital gain compression on the LTC2376CDE-16#PBF is activated by grounding the REF/DGC pin. When enabled, the ADC digitally remaps its transfer function so that zero-scale corresponds to 0.1·VREF and full-scale to 0.9·VREF, yielding an effective input range of 0.5V–4.5V with a 5V reference. This preserves all 16 bits of resolution while allowing driver amplifiers like the LT6350 to operate from a single +5.5V supply.
What package type and pin count does the LTC2376CDE-16#PBF use?
The LTC2376CDE-16#PBF uses a 16-lead plastic DFN package measuring 4mm × 3mm, with an exposed ground pad (Pin 17). It has 16 signal/ground terminals including VDD, OVDD, IN+, IN–, REF, REF/DGC, CNV, BUSY, CHAIN, RDL/SDI, SCK, SDO, and four GND connections (Pins 3, 6, 10, 16). The exposed pad must be soldered to the PCB ground plane for thermal and electrical performance.
Can the LTC2376CDE-16#PBF interface directly with a 1.8V microcontroller?
Yes, the LTC2376CDE-16#PBF supports 1.8V logic levels via its OVDD pin, which accepts 1.71V to 5.25V. When OVDD = 1.8V, all digital I/O pins (SCK, SDO, RDL/SDI, CHAIN, CNV, BUSY) operate at 1.8V-compatible voltage thresholds (VIH = 0.8×OVDD, VIL = 0.2×OVDD), enabling direct connection to 1.8V FPGAs or MCUs without level-shifting circuitry.
LTC2376CDE-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:
- 0°C ~ 70°C
- Supplier Device Package:
- 16-DFN (4x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2376CDE-16#PBF FAQ
1.How can I place an order for LTC2376CDE-16#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2376CDE-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 LTC2376CDE-16#PBF reliable?
The price and inventory of LTC2376CDE-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 LTC2376CDE-16#PBF is usually 5 days.
3.What payment methods are accepted for LTC2376CDE-16#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2376CDE-16#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2376CDE-16#PBF?
LTC2376CDE-16#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2376CDE-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 LTC2376CDE-16#PBF?
For technical support, including LTC2376CDE-16#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2376CDE-16#PBF requirements.
6.How does Aetrix verify that LTC2376CDE-16#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2376CDE-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 LTC2376CDE-16#PBF meets industry standards.
7.What is the process for return or replacement of LTC2376CDE-16#PBF?
All LTC2376CDE-16#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2376CDE-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 LTC2376CDE-16#PBF part is unused and in its original packaging.
Return procedure for LTC2376CDE-16#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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