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Analog Devices Inc. LTC2383IDE-16#TRPBF
- Part No.:
- LTC2383IDE-16#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-WFDFN Exposed Pad
- Datasheet:
-
LTC2383IDE-16#TRPBF.pdf
- Description:
- IC ADC 16BIT SAR 16DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,528
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Product details
Overview
LTC2383IDE-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 LTC2383IDE-16#TRPBF datasheet, LTC2383IDE-16#TRPBF pinout, LTC2383IDE-16#TRPBF application, or LTC2383IDE-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 –40°C to +85°C industrial temperature rating in 4 mm × 3 mm DFN package.
Technical Context
The LTC2383IDE-16#TRPBF implements a charge-redistribution SAR architecture with a 16-bit CDAC and differential comparator, digitizing inputs using binary-weighted fractions of an external 2.5 V reference. Conversion is initiated by a rising edge on CNV, with no pipeline delay and fixed 610–730 ns conversion time set by an internal oscillator.
Its serial interface supports both normal mode (RDL/SDI as bus enable) and chain mode (RDL/SDI as SDI for daisy-chaining), with SDO outputting 2's complement data MSB-first on SCK rising edges. The device draws only 0.5 µA in power-down mode and scales IDD linearly with sampling rate - 13 mW at 1 Msps, 13 µW at 1 ksps.
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 <0.003% full-scale linearity error, critical for precision measurement and calibration systems. |
| SNR (Typ) | 92 dB at fIN = 20 kHz - corresponds to ~6.1 effective number of bits (ENOB), supporting high-fidelity signal reconstruction. |
| Power (1 Msps) | 13 mW - enables thermally constrained portable instrumentation and battery-operated DAQ without active cooling. |
| Input Range | ±2.5 V fully differential - rejects common-mode noise and doubles dynamic range versus single-ended ADCs of same resolution. |
| Reference Input | 2.4 V to 2.6 V external - requires low-noise, low-drift source (e.g., LTC6652-2.5) to maintain specified AC performance. |
Pinout & Package
Package: 16-lead (4 mm × 3 mm) plastic DFN with exposed pad (Pin 17 = GND), rated for –40°C to +85°C operation. Exposed pad must be soldered to PCB ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CHAIN (1) | Mode selector | High = daisy-chain mode (RDL/SDI becomes SDI); Low = normal mode (RDL/SDI enables/disables SDO). |
| VDD (2) | Digital core supply | 2.375 V to 2.625 V; powers internal logic and ADC core; bypass with 10 µF ceramic capacitor. |
| GND (3,6,10,16) | Analog/digital ground | Low-impedance return path for analog and digital currents; multiple pins minimize ground bounce. |
| IN+, IN– (4,5) | Differential analog inputs | Accept ±2.5 V differential swing; 45 pF input capacitance in sample mode; require low-impedance drive or buffering (e.g., LT6350). |
| REF (7,8) | Reference voltage input | 2.4 V to 2.6 V external reference; draws up to 910 µA at 1 Msps; bypass with 47 µF X5R ceramic capacitor. |
| CNV (9) | Convert trigger | Rising edge initiates conversion; device auto-powers-down while CNV remains high, reducing idle power. |
| BUSY (11) | Conversion status indicator | Active-high open-drain signal; asserts at conversion start, deasserts when result is ready on SDO. |
| RDL/SDI (12) | Serial interface control/data | In normal mode: bus enable; in chain mode: serial data input for daisy-chained configurations. |
| SCK (13) | Serial clock input | Accepts up to 100 MHz clock (10 ns period); controls timing of SDO data output and SDI sampling. |
| 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 to 5.25 V; sets logic levels for SCK, RDL/SDI, BUSY, and SDO; bypass with 0.1 µF capacitor. |
| GND (17) | Exposed pad ground | Thermal and electrical ground connection; mandatory soldering to PCB ground plane per datasheet. |
Key Features
| Feature | Design Value |
|---|---|
| No cycle latency | Delivers first valid conversion result immediately after CNV rising edge - eliminates pipeline delay for deterministic timing in closed-loop control. |
| Auto power-down between conversions | Reduces IDD from 5.2 mA (active) to 0.5 µA (idle), enabling ultra-low average power in burst-sampling applications. |
| SPI-compatible daisy-chain mode | Allows synchronous readout of multiple LTC2383IDE-16#TRPBF devices using single SCK/SCKCH and shared CNV, minimizing MCU GPIO count. |
| Guaranteed operation to 85°C | Specified performance (INL, SNR, power) maintained over full –40°C to +85°C industrial temperature range - no derating required. |
| Internal conversion clock | Removes need for external timing components or precise clock synchronization, simplifying layout and reducing BOM cost. |
Applications
| Medical Imaging Signal Chain | Industrial Process Monitoring |
|---|---|
Use Scenario: Digitizing low-noise analog outputs from ultrasound beamformer channels or MRI gradient amplifiers requiring high dynamic range and minimal harmonic distortion. IC Role / Device Role / Timing Role: Primary high-speed, high-accuracy ADC capturing baseband RF or sensor signals at up to 1 Msps with 92 dB SNR and ±2 LSB INL. Use Value: Enables detection of subtle tissue contrast or process anomalies via full 16-bit resolution without missing codes, directly supporting FDA-cleared diagnostic accuracy requirements. | Use Scenario: Real-time monitoring of pressure, temperature, and flow transducers in PLC-based factory automation systems operating in electrically noisy environments. IC Role / Device Role / Timing Role: Isolated front-end ADC providing differential input rejection and robust SPI communication to microcontroller over long traces. Use Value: Maintains ±2 LSB INL and 92 dB SNR despite EMI exposure, ensuring sub-0.01% measurement repeatability for closed-loop PID control stability. |
| Portable Test Equipment | Battery-Powered Data Logger |
Use Scenario: Handheld oscilloscope or spectrum analyzer module where size, power, and AC performance must coexist in a compact enclosure. IC Role / Device Role / Timing Role: Core 16-bit SAR ADC delivering 1 Msps throughput with only 13 mW active power and automatic sleep during display refresh intervals. Use Value: Extends battery life beyond 8 hours per charge while preserving 92 dB SNR - critical for field technicians performing multi-hour diagnostics. | Use Scenario: Remote environmental sensor node logging vibration, acoustic emission, or strain gauge data at variable rates over weeks on coin-cell batteries. IC Role / Device Role / Timing Role: Low-power ADC that draws just 13 µW at 1 ksps and powers down completely between samples using CNV-controlled wake-up. Use Value: Achieves >1-year operational lifetime on CR2032 by scaling power linearly with sampling rate and eliminating standby current overhead. |
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; 1.8 V to 3.6 V IO; lower SNR (91 dB typ) | Requires precise external clock generation; less tolerant of clock jitter; narrower IO voltage range limits host MCU compatibility | Select when system already provides low-jitter clock and IO voltage is fixed at 1.8 V or 3.3 V. |
| AD7960BCPZ | 18-bit, 5 Msps, but consumes 35 mW at full speed; requires external reference buffer; no daisy-chain mode | Higher resolution and speed come at 2.7× power penalty and increased board area for reference circuitry | Select when ENOB > 16.5 bits is mandatory and thermal/power budget allows 35 mW continuous dissipation. |
Compared with ADS8860IDRCT and AD7960BCPZ, the LTC2383IDE-16#TRPBF delivers optimal balance of 16-bit precision, 1 Msps throughput, ultra-low 13 mW power, integrated timing, and daisy-chain flexibility - making it uniquely suited for space- and energy-constrained industrial and portable DAQ designs.
Availability
LTC2383IDE-16#TRPBF is available at Aetrix Electronics and suitable for medical imaging signal chains, industrial process monitoring systems, and portable test equipment requiring stable component supply, guaranteed 16-bit no-missing-codes operation, and extended temperature reliability.
Supply support for LTC2383IDE-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 LTC2383-16 family was designed specifically for high-speed, low-power, precision data acquisition in thermally constrained and noise-sensitive environments - emphasizing guaranteed specifications across temperature, internal timing autonomy, and flexible digital interfacing.
FAQ
What is the operating temperature range for the LTC2383IDE-16#TRPBF?
The LTC2383IDE-16#TRPBF is specified for operation from –40°C to +85°C. All key AC and DC parameters - including ±2 LSB INL max, 92 dB SNR, 13 mW power at 1 Msps, and 1 Msps sampling rate - are guaranteed across this full industrial temperature range without derating.
Does the LTC2383IDE-16#TRPBF require an external clock source?
No, the LTC2383IDE-16#TRPBF features an internal conversion clock, eliminating the need for an external timing source. Conversion time is fixed at 610–730 ns and is not dependent on SCK frequency, which only controls serial data transfer timing. This simplifies system design and improves jitter immunity.
Can the LTC2383IDE-16#TRPBF interface directly with a 1.8 V microcontroller?
Yes. The LTC2383IDE-16#TRPBF supports 1.8 V to 5 V logic levels via its dedicated OVDD supply pin (Pin 15). When OVDD = 1.8 V, all digital I/Os (SCK, RDL/SDI, BUSY, SDO) operate at 1.8 V compatible levels - enabling seamless SPI communication with low-voltage MCUs without level shifters.
What reference voltage source is recommended for optimal performance of the LTC2383IDE-16#TRPBF?
The LTC6652-2.5 is explicitly recommended in the datasheet for the LTC2383IDE-16#TRPBF. It delivers 0.05% initial accuracy and 5 ppm/°C max drift over –40°C to +125°C, matching the ADC's precision and temperature range. A 47 µF X5R ceramic capacitor must be placed directly at the REF pin for transient stability.
How does the auto power-down feature work on the LTC2383IDE-16#TRPBF?
The LTC2383IDE-16#TRPBF automatically enters power-down mode when CNV remains high after conversion completion. In this state, supply current drops from 5.2 mA to 0.5 µA. Power resumes within nanoseconds upon the next CNV rising edge, enabling ultra-low average power in burst-sampling applications without startup latency.
LTC2383IDE-16#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-WFDFN Exposed Pad
- 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-DFN (4x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2383IDE-16#TRPBF FAQ
1.How can I place an order for LTC2383IDE-16#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2383IDE-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 LTC2383IDE-16#TRPBF reliable?
The price and inventory of LTC2383IDE-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 LTC2383IDE-16#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2383IDE-16#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2383IDE-16#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2383IDE-16#TRPBF?
LTC2383IDE-16#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2383IDE-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 LTC2383IDE-16#TRPBF?
For technical support, including LTC2383IDE-16#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2383IDE-16#TRPBF requirements.
6.How does Aetrix verify that LTC2383IDE-16#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2383IDE-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 LTC2383IDE-16#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2383IDE-16#TRPBF?
All LTC2383IDE-16#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2383IDE-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 LTC2383IDE-16#TRPBF part is unused and in its original packaging.
Return procedure for LTC2383IDE-16#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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