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Analog Devices Inc. LTC2383IMS-16#TRPBF
- Part No.:
- LTC2383IMS-16#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2383IMS-16#TRPBF.pdf
- Description:
- IC ADC 16BIT SAR 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,321
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Product details
Overview
LTC2383IMS-16#TRPBF from Analog Devices (formerly Linear Technology) is a 16-bit, 1 Msps successive approximation register (SAR) analog-to-digital converter with fully differential ±2.5 V input range, 92 dB SNR at 20 kHz, ±2 LSB INL max, and 13 mW power consumption at full speed. It operates from a 2.5 V VDD supply and supports 1.8 V to 5 V I/O logic via separate OVDD, enabling direct interfacing with diverse host processors in high-speed data acquisition systems.
For engineers reviewing the LTC2383IMS-16#TRPBF datasheet, LTC2383IMS-16#TRPBF pinout, LTC2383IMS-16#TRPBF application, or LTC2383IMS-16#TRPBF equivalent, key selection criteria include guaranteed 16-bit no-missing-codes operation, daisy-chain SPI compatibility, internal conversion clock, auto power-down scaling with sampling rate, and extended industrial temperature range (–40°C to +85°C) in MSOP package.
Technical Context
The LTC2383IMS-16#TRPBF implements a charge-redistribution SAR architecture with a 16-bit CDAC and differential comparator, digitizing inputs using binary-weighted fractions of the external 2.5 V reference. Conversion is initiated by a CNV rising edge, with fixed 610–730 ns conversion time set by an internal oscillator-eliminating external clock dependency.
Its serial interface operates in Normal Mode (RDL/SDI as bus enable) or Chain Mode (RDL/SDI as SDI for daisy-chaining), supporting MSB-first 2's complement output on SDO synchronized to SCK edges. The device draws only 5.2 mA IDD at 1 Msps and drops to 0.5 µA in power-down mode, with REF pin current scaling linearly with sample rate up to 910 µA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees monotonic transfer function and no missing codes across full temperature range. |
| Sampling Rate | 1 Msps - enables real-time capture of signals up to 30 MHz input bandwidth without aliasing in baseband applications. |
| INL (Max) | ±2 LSB - ensures end-point linearity error ≤ ±0.003% FSR, critical for precision measurement calibration. |
| SNR (Typ) | 92 dB at fIN = 20 kHz - corresponds to effective resolution of ~15.0 bits for low-distortion sine-wave inputs. |
| Power (1 Msps) | 13 mW - achieved with 2.5 V VDD and 2.5 V OVDD; scales down to 13 µW at 1 ksps via automatic power-down. |
| Input Range | ±2.5 V differential - supports bipolar signal acquisition without external level-shifting circuitry. |
| Reference | External 2.4–2.6 V - requires low-noise, low-drift source (e.g., LTC6652-2.5); REF pin draws up to 910 µA at 1 Msps. |
Pinout & Package
Package: 16-lead plastic MSOP (4 mm × 5 mm), rated for –40°C to +85°C operation. Exposed pad not present in MSOP variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CHAIN (1) | Mode control input | Selects Normal Mode (RDL/SDI = bus enable) or Chain Mode (RDL/SDI = serial data input) for daisy-chaining multiple ADCs. |
| VDD (2) | Digital core supply | 2.375–2.625 V supply for internal logic and CDAC; bypass with 10 µF ceramic capacitor to GND. |
| GND (3,6,10,16) | Analog/digital ground | Four dedicated ground pins minimize ground bounce; must be connected to low-impedance PCB ground plane. |
| IN+, IN– (4,5) | Differential analog inputs | Accept ±2.5 V differential signal; input capacitance = 45 pF (sample mode), common-mode range = VREF/2 ± 50 mV. |
| REF (7,8) | Reference voltage input | 2.4–2.6 V external reference; decoupled with 47 µF X5R ceramic capacitor (0805 size) close to pins. |
| CNV (9) | Convert trigger | Rising-edge initiates conversion; device powers down automatically while CNV remains high between conversions. |
| BUSY (11) | Status indicator | Active-high open-drain output signals conversion progress; falls low when 16-bit result is ready on SDO. |
| RDL/SDI (12) | Configurable I/O | In Normal Mode: enables/disables SDO tri-state; in Chain Mode: accepts serial data from upstream ADC in daisy chain. |
| SCK (13) | Serial clock input | Accepts 10 ns min period (100 MHz max); controls timing of SDO data output and SDI sampling in Chain Mode. |
| SDO (14) | Serial data output | MSB-first 2's complement output; driven only when RDL/SDI = low (Normal Mode) or after BUSY goes low (Chain Mode). |
| OVDD (15) | I/O interface supply | 1.71–5.25 V supply sets logic levels for SCK, RDL/SDI, CHAIN, CNV, BUSY; bypass with 0.1 µF capacitor to GND. |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay / zero cycle latency | Enables deterministic real-time control loops and immediate post-conversion processing without FIFO buffering. |
| Internal conversion clock | Removes need for external timing components or precise clock routing, simplifying layout and reducing BOM count. |
| Auto power-down between conversions | Reduces average power proportionally to sampling rate-e.g., 13 µW at 1 ksps-ideal for battery-powered burst acquisition. |
| SPI-compatible daisy-chain mode | Allows synchronous readout of multiple LTC2383IMS-16#TRPBF devices using single SCK/SCKCH and shared CNV, minimizing GPIO usage. |
| Guaranteed operation to 125°C (H-grade variants) | Validated performance over full industrial temperature range (–40°C to +85°C for I-grade), ensuring reliability in harsh environments. |
Applications
| Medical Imaging | High-Speed Data Acquisition |
|---|---|
Use Scenario: Digitizing ultrasound echo signals or MRI gradient waveforms requiring wide dynamic range and low distortion. IC Role / Device Role / Timing Role: Primary 16-bit SAR ADC capturing baseband analog data at up to 1 Msps with 92 dB SNR and ±2 LSB INL. Use Value: Enables accurate reconstruction of fine tissue structures by preserving signal integrity across 30 MHz input bandwidth and minimizing harmonic distortion (THD = –106 dB). | Use Scenario: Real-time monitoring of motor currents, vibration spectra, or power quality waveforms in industrial PLCs and test equipment. IC Role / Device Role / Timing Role: High-fidelity front-end ADC interfacing directly to isolated amplifiers or sensor conditioners via differential inputs. Use Value: Delivers guaranteed no-missing-codes operation and low aperture jitter (30 ps) to support precise time-domain analysis and FFT-based diagnostics. |
| Portable Instrumentation | Industrial Process Control |
Use Scenario: Handheld multimeters, portable oscilloscopes, or field-deployable environmental sensors operating from limited battery capacity. IC Role / Device Role / Timing Role: Low-power 16-bit ADC with auto power-down, enabling microamp-level sleep current and rapid wake-up for burst sampling. Use Value: Extends battery life significantly-e.g., 13 µW at 1 ksps-while maintaining full 16-bit resolution and linearity over –40°C to +85°C. | Use Scenario: Closed-loop feedback control in factory automation systems where analog sensor outputs (e.g., pressure, temperature) require high-accuracy digitization. IC Role / Device Role / Timing Role: Precision ADC providing calibrated 16-bit digital representation of process variables for PID controllers. Use Value: ±2 LSB INL and 92 dB SNR ensure minimal measurement uncertainty, improving control stability and reducing product defect rates. |
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, 5 Msps, requires external reference buffer; consumes 39 mW at full speed; uses LVDS interface. | Higher resolution and speed but demands more board space, power, and complex interface design. | Select when >16-bit resolution and >1 Msps throughput are mandatory; avoid if cost, power, or SPI simplicity are priorities. |
| LTC2378IMS-18#TRPBF | 18-bit, 1 Msps, same MSOP package and pinout; 95.5 dB SNR; 21 mW power; requires 3.3 V OVDD minimum. | Drop-in upgrade path offering 2 extra bits with identical footprint and timing-but higher power and stricter OVDD requirement. | Choose for enhanced resolution without layout change; verify OVDD compatibility and thermal budget in target system. |
Compared with AD7960BCPZ-RL7 and LTC2378IMS-18#TRPBF, the LTC2383IMS-16#TRPBF delivers optimal balance of 16-bit precision, ultra-low 13 mW power, SPI simplicity, and industrial temperature rating-making it ideal for cost-sensitive, power-constrained, and layout-efficient designs where 18-bit resolution is unnecessary.
Availability
LTC2383IMS-16#TRPBF is available at Aetrix Electronics and suitable for medical imaging systems, portable instrumentation, and industrial process control applications requiring stable component supply, long-term lifecycle support, and guaranteed performance across –40°C to +85°C.
Supply support for LTC2383IMS-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 LTC2383IMS-16#TRPBF belongs to ADI's precision SAR ADC family designed for applications demanding high speed, low power, and guaranteed DC accuracy-including data acquisition, instrumentation, and automated test equipment.
FAQ
What is the operating temperature range for the LTC2383IMS-16#TRPBF?
The LTC2383IMS-16#TRPBF is specified for operation from –40°C to +85°C (I-grade). This extended industrial temperature range ensures reliable performance in demanding environments such as factory floors, outdoor instrumentation, and automotive under-hood sensing applications where ambient temperatures fluctuate widely.
Does the LTC2383IMS-16#TRPBF require an external reference, and what are the requirements?
Yes, the LTC2383IMS-16#TRPBF requires an external 2.4 V to 2.6 V reference applied to the REF pins (7 and 8). The reference must supply up to 910 µA DC current at 1 Msps and exhibit low noise and drift-e.g., the LTC6652-2.5 (0.05% initial accuracy, 5 ppm/°C TC)-to achieve full 92 dB SNR and ±2 LSB INL specifications.
How does the daisy-chain mode work on the LTC2383IMS-16#TRPBF?
In daisy-chain mode (CHAIN pin = high), the RDL/SDI pin becomes a serial data input, allowing multiple LTC2383IMS-16#TRPBF devices to share one SCK and CNV line. Each device shifts its 16-bit result into the next, enabling synchronized readout of N devices with only N+1 SDO lines-reducing host interface complexity versus parallel configurations.
What is the significance of "no cycle latency" in the LTC2383IMS-16#TRPBF?
"No cycle latency" means the LTC2383IMS-16#TRPBF outputs the conversion result immediately after completion-without pipelining delays or multi-cycle alignment. This allows deterministic timing for real-time control systems, enabling immediate use of each sample in closed-loop algorithms without added software compensation or buffer management overhead.
Can the LTC2383IMS-16#TRPBF operate with different OVDD voltages, and why is that important?
Yes, the LTC2383IMS-16#TRPBF supports OVDD from 1.71 V to 5.25 V, enabling direct interface with 1.8 V, 2.5 V, 3.3 V, or 5 V logic families without level shifters. This flexibility simplifies system integration across heterogeneous digital platforms-from low-voltage microcontrollers to legacy FPGA I/O banks-while maintaining robust noise immunity and timing margins.
LTC2383IMS-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):
- 1M
- 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:
- -
LTC2383IMS-16#TRPBF FAQ
1.How can I place an order for LTC2383IMS-16#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2383IMS-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 LTC2383IMS-16#TRPBF reliable?
The price and inventory of LTC2383IMS-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 LTC2383IMS-16#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2383IMS-16#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2383IMS-16#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2383IMS-16#TRPBF?
LTC2383IMS-16#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2383IMS-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 LTC2383IMS-16#TRPBF?
For technical support, including LTC2383IMS-16#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2383IMS-16#TRPBF requirements.
6.How does Aetrix verify that LTC2383IMS-16#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2383IMS-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 LTC2383IMS-16#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2383IMS-16#TRPBF?
All LTC2383IMS-16#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2383IMS-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 LTC2383IMS-16#TRPBF part is unused and in its original packaging.
Return procedure for LTC2383IMS-16#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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