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Analog Devices Inc. LTC2376IMS-16#PBF
- Part No.:
- LTC2376IMS-16#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2376IMS-16#PBF.pdf
- Description:
- IC ADC 16BIT SAR 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:525
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Product details
Overview
LTC2376IMS-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 data acquisition in portable instrumentation and industrial control.
For engineers reviewing the LTC2376IMS-16#PBF datasheet, LTC2376IMS-16#PBF pinout, LTC2376IMS-16#PBF application, or LTC2376IMS-16#PBF equivalent, key selection criteria include guaranteed 16-bit no-missing-codes operation, low 3.4mW power at full throughput, daisy-chain SPI interface, internal conversion clock, and –40°C to +85°C extended temperature rating in MSOP package.
Technical Context
The LTC2376IMS-16#PBF implements a charge-redistribution SAR architecture with a 16-bit CDAC and differential comparator, achieving zero-cycle latency and no pipeline delay. Its conversion timing is governed by an internal oscillator, eliminating external clock dependency.
Digital gain compression (DGC) maps the full-scale input range from ±VREF to 0.1×VREF to 0.9×VREF when REF/DGC is grounded-enabling rail-to-rail single-supply amplifier drive (e.g., LT6350 from +5.5V) while preserving full 16-bit resolution and 97dB SNR performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 65,536 discrete output levels with guaranteed no missing codes across temperature. |
| Sampling Rate | 250ksps - supports real-time capture of signals up to 125kHz Nyquist bandwidth without undersampling. |
| SNR | 97dB (typ, fIN = 2kHz, VREF = 5V) - enables >15.8 effective number of bits (ENOB) in high-fidelity measurement systems. |
| INL | ±0.5LSB (max) - ensures monotonicity and linearity critical for closed-loop control and calibration applications. |
| Power Consumption | 3.4mW at 250ksps - allows battery-powered operation with <1.7mA total supply current (VDD + OVDD + IREF). |
| Input Range | ±VREF, VREF = 2.5V to 5.1V - provides flexible dynamic range scaling for sensor interfaces and programmable gain stages. |
| DGC Support | Enabled via REF/DGC pin grounded - reduces required analog driver headroom to 0.5V–4.5V (at VREF = 5V), eliminating negative supply need. |
Pinout & Package
Package: 16-lead plastic MSOP (3mm × 4.9mm), exposed pad not present (DFN variant has exposed pad; MSOP does not). Operating temperature range: –40°C to +85°C (I-grade).
| 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 supply | 2.5V ±62.5mV supply for core ADC; requires 10µF ceramic bypass to GND for noise suppression. |
| IN+ / IN– (4,5) | Differential analog inputs | Accept ±VREF fully differential signal; input capacitance 45pF in sample mode, 5pF in hold mode. |
| REF (7) | Reference voltage input | 2.5V–5.1V external reference; decoupled with 47µF X5R 0805 capacitor for stability. |
| REF/DGC (8) | Reference/DGC control | Tied to REF → standard ±VREF range; tied to GND → DGC active (0.1–0.9×VREF full-scale mapping). |
| CNV (9) | Convert trigger | Rising edge initiates conversion and powers up ADC; auto-power-down resumes after completion. |
| BUSY (11) | Conversion status | Active-high open-drain indicator; asserts at CNV↑, deasserts when 16-bit result is ready on SDO. |
| RDL/SDI (12) | Serial interface control/data | In normal mode: bus enable; in chain mode: serial data input for cascaded ADC configurations. |
| SCK (13) | Serial clock | 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-state output; driven only when RDL/SDI is low (normal) or during chain-mode readback. |
| OVDD (15) | I/O supply | 1.71V–5.25V logic supply; sets VIH/VIL thresholds and drives SDO; bypassed with 0.1µF capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| No cycle latency | Immediate data availability after BUSY deassertion - eliminates pipeline stalls in deterministic real-time systems. |
| Digital gain compression (DGC) | Enables single-supply amplifier drive (e.g., LT6350 from +5.5V) without sacrificing ENOB or SNR performance. |
| Internal conversion clock | Removes requirement for external timing circuitry - simplifies PCB layout and improves jitter immunity. |
| Auto power-down | Reduces quiescent current to 0.9µA between conversions - scales power linearly with sampling rate for ultra-low-duty-cycle use. |
| SPI-compatible daisy-chain mode | Allows synchronous readout of multiple LTC2376IMS-16#PBF devices using one SCK/SCKCH line - reduces GPIO count in multi-channel systems. |
Applications
| Medical Imaging Signal Chain | Portable High-Speed DAQ |
|---|---|
Use Scenario: Digitizing low-noise, wide-dynamic-range signals from ultrasound transducer front-ends or MRI gradient monitoring circuits. IC Role / Device Role / Timing Role: Primary 16-bit SAR ADC capturing 250ksps continuous waveforms with 97dB SNR and ±0.5LSB INL for quantitative image reconstruction. Use Value: DGC enables compact, single-supply analog front-end design while maintaining diagnostic-grade ENOB (>15.8 bits) and THD (–125dB). | Use Scenario: Battery-powered handheld test equipment requiring high-resolution waveform capture over extended field deployment. IC Role / Device Role / Timing Role: Core ADC in portable oscilloscope or spectrum analyzer subsystem, operating at 250ksps with internal clock and auto power-down. Use Value: 3.4mW active power and 0.9µA shutdown current extend battery life; MSOP package enables compact 2-layer PCB layout. |
| Industrial Process Monitoring | Automated Test Equipment (ATE) |
Use Scenario: Real-time monitoring of motor phase currents, temperature sensors, and pressure transducers in factory automation PLC modules. IC Role / Device Role / Timing Role: Precision ADC interfacing isolated analog inputs with microcontroller via SPI, supporting –40°C to +85°C ambient operation. Use Value: Guaranteed 16-bit no-missing-codes and ±0.5LSB INL ensure accurate calibration traceability; daisy-chain mode simplifies multi-sensor synchronization. | Use Scenario: High-throughput production testing of analog ICs and sensors requiring fast, repeatable DC and AC parameter measurements. IC Role / Device Role / Timing Role: Reference-grade digitizer in ATE pin electronics, delivering 97dB SNR and –125dB THD for spectral purity validation. Use Value: Fully differential input rejects common-mode noise from switching power supplies; internal oscillator eliminates external clock skew errors. |
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 |
|---|---|---|---|
| ADS8860IDRCT | 16-bit, 1MSPS, 2.5V supply, SPI interface; 92.5dB SNR (typ), ±1.5LSB INL (max); no DGC; 10-pin VSSOP package. | Higher speed but lower SNR and linearity; lacks DGC and extended temp grade; smaller package limits thermal dissipation. | Select when >250ksps sampling is required and DGC/single-supply drive is unnecessary. |
| AD7961BCPZ | 16-bit, 5MSPS, 5V analog supply, parallel + SPI interface; 93.5dB SNR (typ), ±2.5LSB INL (max); no DGC; 32-lead LFCSP package. | Higher speed and parallel interface increase system complexity and power (45mW); no DGC; wider temp range (–40°C to +125°C) but larger footprint. | Select for ultra-high-speed applications where parallel bus integration justifies higher cost, size, and power. |
Compared with ADS8860IDRCT and AD7961BCPZ, the LTC2376IMS-16#PBF offers superior SNR (97dB vs ≤93.5dB) and tighter INL (±0.5LSB vs ≥±1.5LSB), plus unique DGC for simplified analog front-end design-making it optimal for precision, low-power, thermally constrained applications within its 250ksps throughput window.
Availability
LTC2376IMS-16#PBF is available at Aetrix Electronics and suitable for medical imaging signal chains, portable high-speed data acquisition systems, and industrial process monitoring requiring stable component supply, long-term lifecycle support, and guaranteed extended temperature performance.
Supply support for LTC2376IMS-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 LTC2376IMS-16#PBF belongs to ADI's legacy Linear Technology precision SAR ADC product line, engineered for applications demanding ultra-low noise, low power, and high DC/AC accuracy in space- and energy-constrained environments.
FAQ
What is the maximum sampling rate supported by the LTC2376IMS-16#PBF?
The LTC2376IMS-16#PBF supports a maximum sampling rate of 250ksps across its full operating temperature range (–40°C to +85°C). This rate is guaranteed with tCYC = 4µs and is enabled by its internal conversion clock and zero-cycle-latency architecture-no oversampling or interpolation is required to achieve full 16-bit resolution at this throughput.
Does the LTC2376IMS-16#PBF require an external clock source?
No, the LTC2376IMS-16#PBF does not require an external clock source. It integrates an internal oscillator that sets the conversion time, ensuring consistent timing and eliminating jitter sensitivity from external clock distribution. The SCK pin is used solely for serial data transfer timing-not for conversion control-allowing flexible host interface clocking from 1.8V to 5V logic levels.
How does Digital Gain Compression (DGC) function in the LTC2376IMS-16#PBF?
Digital Gain Compression (DGC) in the LTC2376IMS-16#PBF is activated by grounding the REF/DGC pin. It digitally remaps the full-scale input range from ±VREF to 0.1×VREF to 0.9×VREF, enabling the use of single-supply amplifiers (e.g., LT6350 from +5.5V) without loss of resolution or SNR. For VREF = 5V, this yields a usable input span of 0.5V to 4.5V-providing 0.5V headroom on both rails.
What package and temperature grade does the LTC2376IMS-16#PBF use?
The LTC2376IMS-16#PBF uses a 16-lead plastic MSOP package (3mm × 4.9mm) and is rated for operation from –40°C to +85°C (I-grade). It features lead-free (Pb-free) finish and is RoHS compliant. Unlike the DFN variant, the MSOP version has no exposed thermal pad, relying on standard PCB copper for thermal management.
Can the LTC2376IMS-16#PBF be operated with a 3.3V I/O supply while using a 2.5V analog supply?
Yes, the LTC2376IMS-16#PBF supports independent analog and digital supplies: VDD = 2.5V (±62.5mV) for the ADC core, and OVDD = 1.71V to 5.25V for the SPI interface. With OVDD = 3.3V, VIH = 2.64V (0.8×OVDD) and VOL = 0.2V are compatible with standard 3.3V microcontrollers-enabling seamless integration without level shifters.
LTC2376IMS-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:
- -40°C ~ 85°C
- Supplier Device Package:
- 16-MSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2376IMS-16#PBF FAQ
1.How can I place an order for LTC2376IMS-16#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2376IMS-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 LTC2376IMS-16#PBF reliable?
The price and inventory of LTC2376IMS-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 LTC2376IMS-16#PBF is usually 5 days.
3.What payment methods are accepted for LTC2376IMS-16#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2376IMS-16#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2376IMS-16#PBF?
LTC2376IMS-16#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2376IMS-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 LTC2376IMS-16#PBF?
For technical support, including LTC2376IMS-16#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2376IMS-16#PBF requirements.
6.How does Aetrix verify that LTC2376IMS-16#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2376IMS-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 LTC2376IMS-16#PBF meets industry standards.
7.What is the process for return or replacement of LTC2376IMS-16#PBF?
All LTC2376IMS-16#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2376IMS-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 LTC2376IMS-16#PBF part is unused and in its original packaging.
Return procedure for LTC2376IMS-16#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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