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Analog Devices Inc. LTC2383IMS-16#PBF
- Part No.:
- LTC2383IMS-16#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2383IMS-16#PBF.pdf
- Description:
- IC ADC 16BIT SAR 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,916
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Product details
Overview
LTC2383IMS-16#PBF 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 (typ), ±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, making it suitable for high-speed data acquisition in industrial and medical instrumentation where precision, low latency, and thermal robustness are critical.
For engineers reviewing the LTC2383IMS-16#PBF datasheet, LTC2383IMS-16#PBF pinout, LTC2383IMS-16#PBF application, or LTC2383IMS-16#PBF equivalent, key selection considerations include guaranteed 16-bit no-missing-codes operation over –40°C to +85°C, daisy-chain SPI compatibility, internal conversion clock, zero-cycle-latency timing, and differential input drive requirements for optimal SNR/THD performance.
Technical Context
The LTC2383IMS-16#PBF implements a charge-redistribution SAR architecture with a 16-bit CDAC and differential comparator, sampling the IN+/IN– inputs during acquisition and executing binary-search conversion without pipeline delay. Its internal oscillator eliminates external clock dependency for conversion timing, while auto power-down between conversions scales quiescent current from 13 mW (1 Msps) to 13 µW (1 ksps).
It features dual-supply operation: 2.375 V–2.625 V VDD powers core logic and ADC, while 1.71 V–5.25 V OVDD sets I/O voltage levels-enabling direct interfacing with 1.8 V, 2.5 V, 3.3 V, or 5 V host controllers. The REF pins accept a 2.4 V–2.6 V external reference, and the 2's complement serial output supports MSB-first SPI readout with configurable RDL/SDI bus enable or daisy-chain mode via CHAIN pin.
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 (–3 dB) without undersampling. |
| SNR | 92 dB (typ at fIN = 20 kHz) - supports >15 ENOB for high-fidelity signal reconstruction in spectral analysis. |
| INL | ±2 LSB (max) - ensures < ±0.003% full-scale linearity error, critical for calibration-sensitive measurement systems. |
| Power @ 1 Msps | 13 mW - achieves 13 µW/Msps efficiency, enabling battery-operated portable instruments with extended runtime. |
| Input Range | ±2.5 V fully differential - rejects common-mode noise and doubles dynamic range versus single-ended inputs. |
| Operating Temp | –40°C to +85°C - qualified for industrial environments without derating; H-grade variant extends to +125°C. |
Pinout & Package
Package: 16-lead plastic MSOP (4 mm × 5 mm), exposed pad not present (DFN variant has exposed GND pad; MSOP does not). Pin count and function mapping match LTC2383-16 family specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CHAIN (1) | Mode control input | Selects Normal Mode (RDL/SDI = bus enable) or Daisy-Chain Mode (RDL/SDI = serial data input); determines SDO/RDL functional assignment. |
| VDD (2) | Digital core supply | 2.5 V ± 125 mV supply for ADC logic and CDAC; requires 10 µF ceramic bypass 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 swing; input impedance ~45 pF || 40 Ω during acquisition; require matched drive for CMRR >70 dB. |
| REF (7,8) | Reference voltage input | 2.4 V–2.6 V external reference; draws pulsed current up to 910 µA at 1 Msps; requires 47 µF X5R ceramic decoupling. |
| CNV (9) | Convert trigger input | Rising edge initiates conversion; device powers down automatically when held high post-conversion. |
| BUSY (11) | Status output | Active-high open-drain indicator; asserts at conversion start and deasserts upon result availability on SDO. |
| RDL/SDI (12) | Configurable I/O | In Normal Mode: bus enable (low = SDO active); in Chain Mode: serial data input from upstream ADC. |
| SCK (13) | Serial clock input | Accepts up to 100 MHz clock (10 ns period); controls timing of SDO data shift-out on rising edges. |
| SDO (14) | Serial data output | 2's complement 16-bit result shifted MSB first; tri-state controlled by RDL/SDI in Normal Mode. |
| OVDD (15) | I/O interface supply | 1.71 V–5.25 V logic-level supply; sets VIH/VIL thresholds and drives SDO; bypass with 0.1 µF capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| No cycle latency | Conversion completes within one sample period (1 µs), eliminating pipeline delay and enabling deterministic real-time control loops. |
| Daisy-chain SPI mode | Enables synchronous readout of multiple LTC2383IMS-16#PBF devices using single SCK/SDO lines-reducing FPGA/GPIO resource usage in multi-channel systems. |
| Auto power-down | Reduces IDD from 5.2 mA (active) to 0.5 µA (power-down) between conversions, scaling power linearly with sampling rate for energy-efficient burst acquisition. |
| Guaranteed 16-bit operation | Specified no missing codes and ±2 LSB INL over full –40°C to +85°C range-eliminates need for system-level linearity correction in production test. |
| Internal conversion clock | Removes requirement for external timing circuitry; simplifies layout and improves jitter immunity compared to externally clocked SAR ADCs. |
Applications
| Medical Imaging Data Acquisition | Industrial Process Monitoring |
|---|---|
Use Scenario: Digitizing CT/MRI sensor outputs requiring high dynamic range and low distortion over wide temperature ranges. IC Role / Device Role / Timing Role: Primary 16-bit SAR ADC capturing analog detector signals at up to 1 Msps with 92 dB SNR and < ±0.003% linearity. Use Value: Enables accurate reconstruction of low-contrast anatomical features without post-processing correction, meeting IEC 62304 Class C software safety requirements. | Use Scenario: High-precision monitoring of pressure, flow, and temperature transducers in PLC-based factory automation systems. IC Role / Device Role / Timing Role: Front-end ADC in isolated analog input modules, interfacing with 3.3 V microcontrollers via SPI daisy-chain configuration. Use Value: Delivers calibrated 16-bit resolution across –40°C to +85°C ambient without recalibration, reducing field service intervals by >40%. |
| Portable Test Equipment | Battery-Powered ATE |
Use Scenario: Handheld oscilloscopes and spectrum analyzers needing low power, high SNR, and compact form factor. IC Role / Device Role / Timing Role: Core ADC in 12-bit+ equivalent measurement path, powered from single-cell Li-ion (3.0–4.2 V) via buck-boost regulator generating 2.5 V VDD and 3.3 V OVDD. Use Value: Achieves 13 mW at 1 Msps and 13 µW at 1 ksps-extending battery life to >8 hours in mixed-mode acquisition modes. | Use Scenario: Automated test equipment performing parametric testing of analog ICs with tight DC accuracy and AC performance requirements. IC Role / Device Role / Timing Role: Precision digitizer in stimulus-response measurement chain, synchronized to pattern generator via CNV edge triggering. Use Value: Provides traceable 16-bit no-missing-codes data with ±2 LSB INL, satisfying ISO/IEC 17025 calibration validity for metrology-grade ATE. |
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 |
|---|---|---|---|
| ADS8860IDRCT | 16-bit, 1 Msps, but uses external clock only; no internal oscillator; 2.5 V supply only; SPI interface lacks daisy-chain mode. | Requires precise external clock source and additional timing control logic; unsuitable for systems needing autonomous conversion timing. | Select when external clock synchronization is mandatory and board space allows extra clock generation circuitry. |
| AD7960BCPZ-RL7 | 18-bit, 5 Msps, but consumes 39 mW at full speed; requires 4.096 V reference; no auto power-down; LVDS interface instead of SPI. | Higher resolution and speed come at cost of power, complexity, and FPGA resource usage for LVDS deserialization. | Select when >16-bit ENOB is required and system can accommodate higher power, larger footprint, and LVDS interface constraints. |
Compared with ADS8860IDRCT and AD7960BCPZ-RL7, the LTC2383IMS-16#PBF uniquely combines internal timing, daisy-chain SPI, and ultra-low-power scaling-making it optimal for thermally constrained, multi-channel, or battery-powered designs where deterministic latency and minimal support components are essential.
Availability
LTC2383IMS-16#PBF is available at Aetrix Electronics and suitable for industrial process control, portable instrumentation, and medical imaging systems requiring stable component supply, long-term lifecycle assurance, and guaranteed –40°C to +85°C operation.
Supply support for LTC2383IMS-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 LTC2383IMS-16#PBF belongs to ADI's legacy Linear Technology high-speed precision SAR ADC product line, engineered specifically for applications demanding 16-bit accuracy, sub-µs latency, and robust operation in harsh thermal environments without sacrificing power efficiency.
FAQ
What is the operating temperature range of the LTC2383IMS-16#PBF?
The LTC2383IMS-16#PBF is specified for operation from –40°C to +85°C. This industrial temperature grade is confirmed in the Order Information table and applies to all electrical, timing, and dynamic specifications unless otherwise noted. The H-grade variant (LTC2383HMS-16#PBF) extends to +125°C, but the LTC2383IMS-16#PBF itself is rated strictly to +85°C.
Does the LTC2383IMS-16#PBF require an external clock for conversion?
No, the LTC2383IMS-16#PBF does not require an external clock for conversion. It contains an internal oscillator that sets the conversion time, eliminating external timing dependencies. The SCK pin is used only for serial data readout-not for controlling the ADC core-and supports up to 100 MHz for fast SPI communication.
Can the LTC2383IMS-16#PBF interface directly with a 1.8 V microcontroller?
Yes, the LTC2383IMS-16#PBF can interface directly with a 1.8 V microcontroller. Its OVDD supply accepts 1.71 V to 5.25 V, and digital input thresholds scale to 0.8×OVDD (VIH) and 0.2×OVDD (VIL). When OVDD = 1.8 V, VIH = 1.44 V and VIL = 0.36 V-fully compatible with standard 1.8 V logic families without level-shifting circuitry.
What reference voltage is recommended for optimal performance of the LTC2383IMS-16#PBF?
The LTC6652-2.5 is explicitly recommended in the datasheet for optimal performance of the LTC2383IMS-16#PBF. It delivers 2.5 V ±0.05% initial accuracy and 5 ppm/°C max temperature coefficient, matching the REF input range (2.4 V–2.6 V) and supporting full 16-bit linearity and 92 dB SNR across temperature. All published dynamic performance curves were measured using this reference.
How does the power consumption of the LTC2383IMS-16#PBF scale with sampling rate?
The LTC2383IMS-16#PBF scales power consumption linearly with sampling rate due to its auto power-down feature. At 1 Msps, it draws 5.2 mA from VDD (13 mW); at 1 ksps, supply current drops to 5.2 µA (13 µW). This behavior is guaranteed over temperature and enables energy-efficient burst-mode acquisition in portable and IoT edge devices.
LTC2383IMS-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):
- 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#PBF FAQ
1.How can I place an order for LTC2383IMS-16#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2383IMS-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 LTC2383IMS-16#PBF reliable?
The price and inventory of LTC2383IMS-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 LTC2383IMS-16#PBF is usually 5 days.
3.What payment methods are accepted for LTC2383IMS-16#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2383IMS-16#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2383IMS-16#PBF?
LTC2383IMS-16#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2383IMS-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 LTC2383IMS-16#PBF?
For technical support, including LTC2383IMS-16#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2383IMS-16#PBF requirements.
6.How does Aetrix verify that LTC2383IMS-16#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2383IMS-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 LTC2383IMS-16#PBF meets industry standards.
7.What is the process for return or replacement of LTC2383IMS-16#PBF?
All LTC2383IMS-16#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2383IMS-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 LTC2383IMS-16#PBF part is unused and in its original packaging.
Return procedure for LTC2383IMS-16#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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