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Analog Devices Inc. LTC2376CMS-16#PBF
- Part No.:
- LTC2376CMS-16#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2376CMS-16#PBF.pdf
- Description:
- IC ADC 16BIT SAR 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:972
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Product details
Overview
LTC2376CMS-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 analog supply and supports 1.8V–5V I/O logic, targeting high-precision, low-power data acquisition in compact instrumentation.
For engineers reviewing the LTC2376CMS-16#PBF datasheet, LTC2376CMS-16#PBF pinout, LTC2376CMS-16#PBF application, or LTC2376CMS-16#PBF equivalent, key selection criteria include guaranteed 16-bit no-missing-codes operation, internal conversion clock eliminating external timing constraints, daisy-chain SPI interface, auto power-down scaling to 3.4µW at 250sps, and DGC-enabled 0.5V–4.5V input range with 5V reference.
Technical Context
The LTC2376CMS-16#PBF implements a charge redistribution capacitor DAC (CDAC) architecture with differential comparator and internal oscillator, enabling zero-cycle-latency conversions and eliminating pipeline delay. Its acquisition phase samples the differential input using 45pF capacitive input impedance in series with 40Ω switch resistance, while the conversion phase executes binary-weighted voltage comparisons against VREF/2, VREF/4, ..., VREF/65536.
Digital gain compression (DGC) is controlled via the REF/DGC pin: grounded to map full-scale from 0.1·VREF to 0.9·VREF (e.g., 0.5V–4.5V for 5V reference), preserving 16-bit resolution without requiring negative supply for driving amplifiers. The device supports both normal and daisy-chain SPI modes via the CHAIN pin, with SDO output in 2's complement format and configurable OVDD (1.71V–5.25V) for mixed-voltage system interfacing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees monotonic transfer function and full 65,536-code dynamic range |
| 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 (ENOB) in narrowband applications |
| INL | ±0.5LSB max over temperature - ensures accurate end-point linearity for calibration-sensitive systems |
| Power Dissipation | 3.4mW at 250ksps - enables battery-powered operation with thermal budget under 5mW |
| Digital Gain Compression | Enabled by grounding REF/DGC - shifts input range to 10%–90% of ±VREF, allowing single 5.5V supply for driver amplifiers |
| Input Range | Fully differential ±VREF, VREF = 2.5V to 5.1V - supports flexible signal scaling and headroom optimization |
Pinout & Package
Package: 16-lead MSOP (4.0mm × 3.0mm × 1.1mm), exposed pad not present (DFN variant has exposed pad; MSOP does not). Operating temperature range: 0°C to 70°C (C-grade).
| 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 | 2.375V–2.625V @ 250ksps; powers core ADC and internal oscillator |
| GND (3,6,10,16) | Analog/digital ground | Four dedicated GND pins minimize ground bounce and improve PSRR |
| IN+, IN– (4,5) | Differential analog inputs | ±VREF range; 45pF input capacitance during acquisition; requires matched layout for CMRR >86dB |
| REF (7) | Reference voltage input | 2.5V–5.1V; decoupled with 47µF X5R ceramic capacitor; sets LSB size (e.g., 152µV at 5V) |
| REF/DGC (8) | DGC control / reference bias | Tied to GND enables DGC (0.1·VREF to 0.9·VREF full-scale); tied to REF disables DGC |
| CNV (9) | Convert trigger | Rising edge initiates acquisition and conversion; powers up device from auto power-down state |
| BUSY (11) | Conversion status | High during conversion; used for timing synchronization or interrupt-driven readout |
| RDL/SDI (12) | Serial interface control/data | Function depends on CHAIN state; enables SDO tri-state or accepts daisy-chain input |
| SCK (13) | Serial clock | Accepts 10ns min period (100MHz max); rising edge clocks out MSB-first 2's complement data |
| SDO (14) | Serial data output | Tri-state when RDL/SDI = low; outputs 16-bit result or daisy-chain data from prior device |
| OVDD (15) | I/O supply | 1.71V–5.25V; sets logic thresholds for all digital pins; bypassed with 0.1µF capacitor |
Key Features
| Feature | Design Value |
|---|---|
| No missing codes at 16 bits | Guaranteed monotonicity across full operating temperature range (0°C to 70°C) |
| Internal conversion clock | Eliminates need for external timing circuitry; simplifies PCB layout and reduces BOM count |
| Digital gain compression (DGC) | Enables single-supply amplifier operation (e.g., LT6350 from +5.5V) while retaining full 16-bit resolution |
| Daisy-chain SPI mode | Allows synchronous readout of multiple LTC2376 devices using single SCK/SDO path - reduces GPIO usage |
| Auto power-down between conversions | Reduces current to 0.9µA typical at 250sps - extends battery life in intermittent-sampling systems |
Applications
| Medical Imaging Signal Chain | Portable High-Speed Data Logger |
|---|---|
Use Scenario: Digitizing low-noise, wide-dynamic-range analog signals from ultrasound transducer front-ends or MRI gradient monitoring circuits. IC Role / Device Role / Timing Role: Primary SAR ADC capturing 250ksps differential sensor outputs with 97dB SNR and ±0.5LSB INL for quantitative image reconstruction. Use Value: DGC enables use of single-supply op-amps (e.g., LT6350), reducing board area and power vs. dual-rail solutions while preserving ENOB >15.8. | Use Scenario: Battery-powered field instrument recording vibration, acoustic emission, or environmental sensor data with minimal thermal footprint. IC Role / Device Role / Timing Role: Low-power 16-bit ADC performing burst-mode sampling at 250ksps, then auto-entering 3.4µW sleep state between acquisitions. Use Value: 3.4mW active power and 0.9µA shutdown current extend AA-cell lifetime to >1 year in duty-cycled logging applications. |
| Industrial Process Control Loop | Automated Test Equipment (ATE) |
Use Scenario: High-accuracy analog input module in PLC or distributed I/O system measuring 4–20mA loop signals or thermocouple outputs. IC Role / Device Role / Timing Role: Precision ADC providing calibrated 16-bit measurements with guaranteed no-missing-codes and <±0.5LSB INL over 0°C–70°C ambient. Use Value: Fully differential input and 86dB CMRR reject common-mode noise from motor drives or long cable runs in factory environments. | Use Scenario: Channel digitizer in modular ATE platform requiring synchronized multi-channel sampling and deterministic latency. IC Role / Device Role / Timing Role: Zero-latency SAR ADC supporting daisy-chained configuration for simultaneous sampling across 4–8 channels with shared SCK. Use Value: No pipeline delay and BUSY pin enable precise timestamp alignment of sampled waveforms across channels. |
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, requires external reference and clock; higher power (43mW) | Higher resolution/speed but lacks integrated oscillator and DGC; needs more support components | Select when >16-bit resolution and >250ksps throughput are required, and system can accommodate higher power and external timing |
| LTC2378IMS-18#PBF | 18-bit, 1Msps, same package/pinout, includes DGC and internal clock; higher power (12mW at 1Msps) | Drop-in upgrade path offering 2 extra bits and 4× speed; shares identical interface and layout compatibility | Select when future-proofing for higher resolution is needed and 12mW power budget is acceptable |
Compared with AD7960BCPZ-RL7, LTC2376CMS-16#PBF offers lower system complexity via integrated clock and DGC, while LTC2378IMS-18#PBF provides a pin-compatible 18-bit migration path-both alternatives trade off power or integration level versus the original's optimized 16-bit/250ksps/3.4mW balance.
Availability
LTC2376CMS-16#PBF is available at Aetrix Electronics and suitable for medical imaging signal chains, portable high-speed data loggers, and industrial process control modules requiring stable component supply, guaranteed 16-bit performance, and long-term manufacturability.
Supply support for LTC2376CMS-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 semiconductors, formed through the acquisition of Linear Technology in 2017.
The LTC2376-16 belongs to ADI's precision SAR ADC product line, designed specifically for applications demanding high resolution, low power, and simplified system integration-including portable instrumentation, industrial automation, and medical diagnostics equipment.
FAQ
What is the maximum sampling rate supported by the LTC2376CMS-16#PBF?
The LTC2376CMS-16#PBF supports a maximum sampling rate of 250ksps across its full operating temperature range (0°C to 70°C). This rate is guaranteed with tCYC = 4µs and is achieved without pipeline delay or cycle latency, enabling true real-time waveform capture. At this rate, the device consumes 3.4mW and delivers 97dB SNR with 2kHz input tone.
Does the LTC2376CMS-16#PBF require an external clock source?
No, the LTC2376CMS-16#PBF features an internal oscillator that sets the conversion time, eliminating the need for an external clock source. This simplifies system design by removing timing-critical clock distribution and reducing component count. External clocking is not supported-the device relies solely on its internal timing generator for conversion control.
How does digital gain compression (DGC) work in the LTC2376CMS-16#PBF?
In the LTC2376CMS-16#PBF, DGC is enabled by grounding the REF/DGC pin (Pin 8), which redefines the full-scale input range from ±VREF to 0.1·VREF to 0.9·VREF. For a 5V reference, this yields a 0.5V–4.5V differential input span, allowing driver amplifiers like the LT6350 to operate from a single +5.5V supply while preserving full 16-bit resolution and linearity.
What package type and pin count does the LTC2376CMS-16#PBF use?
The LTC2376CMS-16#PBF uses a 16-lead plastic MSOP package (4.0mm × 3.0mm × 1.1mm) with no exposed thermal pad. It shares pinout compatibility with other members of the LTC2376-16 family in MSOP packaging, including the I-grade (LTC2376IMS-16#PBF) and H-grade (LTC2376HMS-16#PBF) variants, enabling drop-in replacement within the same temperature grade.
Is the LTC2376CMS-16#PBF pin-compatible with any higher-resolution alternatives?
Yes, the LTC2376CMS-16#PBF is pin-compatible with the LTC2378IMS-18#PBF-a functionally enhanced 18-bit, 1Msps variant in the same 16-lead MSOP package. Both share identical pin functions, power requirements, and SPI interface behavior, making the LTC2378IMS-18#PBF a direct resolution and speed upgrade path without PCB redesign.
LTC2376CMS-16#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TFSOP (0.118", 3.00mm Width)
- 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-MSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2376CMS-16#PBF FAQ
1.How can I place an order for LTC2376CMS-16#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2376CMS-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 LTC2376CMS-16#PBF reliable?
The price and inventory of LTC2376CMS-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 LTC2376CMS-16#PBF is usually 5 days.
3.What payment methods are accepted for LTC2376CMS-16#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2376CMS-16#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2376CMS-16#PBF?
LTC2376CMS-16#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2376CMS-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 LTC2376CMS-16#PBF?
For technical support, including LTC2376CMS-16#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2376CMS-16#PBF requirements.
6.How does Aetrix verify that LTC2376CMS-16#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2376CMS-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 LTC2376CMS-16#PBF meets industry standards.
7.What is the process for return or replacement of LTC2376CMS-16#PBF?
All LTC2376CMS-16#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2376CMS-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 LTC2376CMS-16#PBF part is unused and in its original packaging.
Return procedure for LTC2376CMS-16#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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