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Analog Devices Inc. LTC2377CMS-16#TRPBF
- Part No.:
- LTC2377CMS-16#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2377CMS-16#TRPBF.pdf
- Description:
- IC ADC 16BIT SAR 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,806
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Product details
Overview
LTC2377CMS-16#TRPBF from Analog Devices (formerly Linear Technology) is a 16-bit, 500ksps successive approximation register (SAR) analog-to-digital converter with ±0.5LSB INL max, 97dB SNR at 2kHz, ±VREF fully differential input range (2.5V–5.1V reference), and digital gain compression (DGC) for single-supply amplifier interfacing. It operates from a 2.5V VDD supply and delivers no missing codes across its full 16-bit resolution in medical imaging and high-speed data acquisition systems.
For engineers reviewing the LTC2377CMS-16#TRPBF datasheet, LTC2377CMS-16#TRPBF pinout, LTC2377CMS-16#TRPBF application, or LTC2377CMS-16#TRPBF equivalent, key selection criteria include guaranteed operation to 70°C, MSOP-16 package compatibility, SPI-compatible serial interface with daisy-chain mode, internal conversion clock, and low 6.8mW power consumption at full throughput.
Technical Context
The LTC2377CMS-16#TRPBF implements a charge redistribution capacitor DAC (CDAC) architecture with a differential comparator and internal oscillator, enabling precise 16-bit sampling without pipeline delay or cycle latency. Its acquisition phase captures differential input voltage across 45pF sampling capacitance with 40Ω switch RON, followed by successive approximation against binary-weighted fractions of VREF.
Digital gain compression (DGC) is controlled via the REF/DGC pin: tied to GND, it remaps zero-scale from 0V to 0.1·VREF and full-scale from VREF to 0.9·VREF, yielding a 0.5V–4.5V input range with 5V reference-enabling LT6350 driver operation from a single 5.5V supply while preserving full 16-bit resolution.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees monotonic transfer function and no missing codes across full scale. |
| Sampling Rate | 500ksps - enables real-time capture of signals up to 250kHz Nyquist bandwidth. |
| SNR | 97dB (typ, fIN = 2kHz, VREF = 5V) - supports >15.8 effective bits in precision measurement applications. |
| INL | ±0.5LSB (max) - ensures accurate end-point linearity critical for calibration-sensitive instrumentation. |
| Power Dissipation | 6.8mW at 500ksps - allows thermal management in compact, battery-constrained designs. |
| Reference Range | 2.5V to 5.1V - permits flexible system-level scaling between noise floor and dynamic range. |
| Digital I/O Voltage | 1.8V to 5V (OVDD) - interoperates directly with mixed-voltage FPGA, MCU, and DSP interfaces. |
Pinout & Package
Package: 16-lead plastic MSOP (4.0mm × 3.0mm × 1.1mm), RoHS-compliant, lead-free finish. Exposed pad not present in MSOP variant.
| 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 powering core ADC circuitry; requires 10µF ceramic bypass to GND. |
| GND (3,6,10,16) | Ground reference | Four dedicated ground pins minimize ground bounce and improve PSRR in high-speed sampling. |
| IN+, IN– (4,5) | Differential analog inputs | Accept ±VREF fully differential signal; input impedance modeled as 45pF || 40Ω during acquisition. |
| REF (7) | Reference voltage input | 2.5V–5.1V external reference; decoupled with 47µF X5R ceramic capacitor at pin. |
| REF/DGC (8) | Reference/DGC control | Tied to REF disables DGC; tied to GND enables DGC, compressing input range to 10%–90% of ±VREF. |
| CNV (9) | Convert trigger | Rising edge initiates conversion and powers up ADC; asynchronous, no minimum pulse width required. |
| BUSY (11) | Conversion status | Active-high open-drain output indicating conversion in progress; logic level referenced to VDD. |
| RDL/SDI (12) | Serial interface control/data | Function depends on CHAIN state; used for bus enable (low CHAIN) or SDI (high CHAIN). |
| SCK (13) | Serial clock input | Supports up to 100MHz SCK (10ns period); rising edge clocks out MSB-first 2's complement data on SDO. |
| SDO (14) | Serial data output | Tri-stateable output delivering 16-bit result; timing validated for CL = 20pF load. |
| OVDD (15) | Digital I/O supply | 1.71V–5.25V logic supply; sets VIH/VIL thresholds and powers SDO driver; bypass with 0.1µF ceramic. |
Key Features
| Feature | Design Value |
|---|---|
| No cycle latency | Enables deterministic real-time sampling without pipeline delay-critical for closed-loop control and burst-mode acquisition. |
| Digital gain compression (DGC) | Eliminates need for negative supply in front-end amplifiers (e.g., LT6350), reducing BOM count and PCB area while retaining full 16-bit ENOB. |
| Internal conversion clock | Removes external clock source dependency and jitter sensitivity, simplifying layout and improving SNR consistency. |
| Auto power-down | Reduces current to 0.9µA (typ) between conversions, scaling power linearly with sample rate for ultra-low average power in intermittent sensing. |
| Guaranteed 125°C operation (H-grade variants) | Validated performance over extended temperature range-supports industrial and automotive under-hood applications. |
Applications
| Medical Imaging | High-Speed Data Acquisition |
|---|---|
Use Scenario: Digitizing ultrasound echo signals in portable handheld scanners requiring high dynamic range and low power. IC Role / Device Role / Timing Role: Primary SAR ADC capturing 12–16-bit echo amplitude data at ≥500ksps with minimal latency for beamforming processing. Use Value: 97dB SNR enables detection of weak tissue boundaries; DGC simplifies analog front-end design using single-supply op-amps. |
Use Scenario: Real-time waveform capture in automated test equipment (ATE) for semiconductor parametric testing. IC Role / Device Role / Timing Role: High-fidelity digitizer for stimulus-response analysis with precise timing alignment and no missing codes. Use Value: ±0.5LSB INL ensures traceable calibration; SPI daisy-chain mode supports multi-channel synchronized sampling. |
| Portable Instrumentation | Industrial Process Control |
Use Scenario: Battery-powered handheld multimeter or power quality analyzer measuring AC/DC voltage, current, and harmonics. IC Role / Device Role / Timing Role: Precision ADC interfaced to isolated sigma-delta or op-amp front-end, operating in low-duty-cycle acquisition mode. Use Value: 6.8µW power at 500sps extends battery life; 2.5V VDD simplifies PMIC selection in space-constrained enclosures. |
Use Scenario: Distributed sensor node in factory automation monitoring motor vibration, temperature, and pressure with local edge processing. IC Role / Device Role / Timing Role: Local analog digitizer feeding FPGA or Cortex-M microcontroller with deterministic 2µs conversion cycle time. Use Value: Guaranteed operation to 70°C (C-grade) meets industrial ambient requirements; MSOP-16 footprint eases rework and volume assembly. |
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, no DGC, higher power (43mW) | Targets higher-resolution, higher-throughput applications where SNR > 100dB is required and board space allows larger LFCSP package. | Select when resolution and speed outweigh power and interface simplicity; not drop-in due to LVDS interface and different pinout. |
| ADS8860IDRCT | 16-bit, 1MSPS, 2.5–5V supply, SPI interface, no DGC, lower SNR (92.5dB), smaller 3mm × 3mm WSON | Suitable for cost-sensitive, space-constrained applications where 97dB SNR is not mandatory and DGC is unnecessary. | Choose for compact footprint and lower unit cost; verify front-end amplifier compatibility without DGC support. |
Compared with AD7960BCPZ-RL7 and ADS8860IDRCT, the LTC2377CMS-16#TRPBF uniquely balances 97dB SNR, 500ksps throughput, 6.8mW power, and DGC functionality in an industry-standard MSOP-16 package-making it optimal for portable, thermally constrained, and single-supply analog front-end designs.
Availability
LTC2377CMS-16#TRPBF is available at Aetrix Electronics and suitable for medical imaging, high-speed data acquisition, and portable instrumentation requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for LTC2377CMS-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 LTC2377-16 belongs to ADI's precision SAR ADC product line, engineered for applications demanding high resolution, low power, and robust DC/AC accuracy-including portable diagnostics, automated test, and distributed sensing.
FAQ
What is the maximum sampling frequency supported by the LTC2377CMS-16#TRPBF?
The LTC2377CMS-16#TRPBF supports a maximum sampling frequency of 500ksps, with a guaranteed conversion time of 1.5µs and no cycle latency. This enables real-time capture of signals with up to 250kHz bandwidth while maintaining full 16-bit resolution and ±0.5LSB INL performance across temperature.
How does digital gain compression (DGC) work in the LTC2377CMS-16#TRPBF?
In the LTC2377CMS-16#TRPBF, DGC is enabled by grounding the REF/DGC pin (Pin 8), which digitally remaps the zero-scale code from 0V to 0.1·VREF and full-scale code from VREF to 0.9·VREF. With a 5V reference, this yields a usable input range of 0.5V–4.5V, allowing single-supply amplifiers like the LT6350 to drive the ADC without negative rails-preserving full 16-bit ENOB.
What package type and temperature range does the LTC2377CMS-16#TRPBF use?
The LTC2377CMS-16#TRPBF uses a 16-lead plastic MSOP package and is specified for operation from 0°C to 70°C (Commercial grade). It features RoHS-compliant lead-free finish and is supplied in tape-and-reel format (#TRPBF suffix), compatible with standard SMT assembly processes.
Does the LTC2377CMS-16#TRPBF require an external clock source?
No-the LTC2377CMS-16#TRPBF integrates an internal oscillator that sets the conversion timing, eliminating the need for an external clock source. This reduces system complexity, minimizes jitter-induced SNR degradation, and simplifies PCB layout-while still supporting externally clocked operation via the SCK pin for synchronous multi-device configurations.
What are the supply voltage requirements for the LTC2377CMS-16#TRPBF?
The LTC2377CMS-16#TRPBF requires two supplies: VDD = 2.375V to 2.625V (typical 2.5V) for the analog core, and OVDD = 1.71V to 5.25V for digital I/O. The separate OVDD rail allows direct interfacing with 1.8V, 2.5V, 3.3V, or 5V logic families without level shifters-ensuring compatibility with diverse host processors and FPGAs.
LTC2377CMS-16#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TFSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 500k
- 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:
- -
LTC2377CMS-16#TRPBF FAQ
1.How can I place an order for LTC2377CMS-16#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2377CMS-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 LTC2377CMS-16#TRPBF reliable?
The price and inventory of LTC2377CMS-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 LTC2377CMS-16#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2377CMS-16#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2377CMS-16#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2377CMS-16#TRPBF?
LTC2377CMS-16#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2377CMS-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 LTC2377CMS-16#TRPBF?
For technical support, including LTC2377CMS-16#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2377CMS-16#TRPBF requirements.
6.How does Aetrix verify that LTC2377CMS-16#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2377CMS-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 LTC2377CMS-16#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2377CMS-16#TRPBF?
All LTC2377CMS-16#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2377CMS-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 LTC2377CMS-16#TRPBF part is unused and in its original packaging.
Return procedure for LTC2377CMS-16#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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