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Analog Devices Inc. LTC2383CDE-16#TRPBF
- Part No.:
- LTC2383CDE-16#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-WFDFN Exposed Pad
- Datasheet:
-
LTC2383CDE-16#TRPBF.pdf
- Description:
- IC ADC 16BIT SAR 16DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,462
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Product details
Overview
LTC2383CDE-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 (typ), ±2 LSB INL (max), and 13 mW power consumption at full speed. It operates from a single 2.5 V supply (VDD), supports 1.8 V–5 V I/O logic (OVDD), and delivers no missing codes across its 16-bit resolution - ideal for high-speed data acquisition in portable instrumentation and medical imaging systems.
For engineers reviewing the LTC2383CDE-16#TRPBF datasheet, LTC2383CDE-16#TRPBF pinout, LTC2383CDE-16#TRPBF application, or LTC2383CDE-16#TRPBF equivalent, key selection criteria include guaranteed 16-bit no-missing-codes operation, daisy-chain SPI interface compatibility, internal conversion clock, auto power-down scaling with sampling rate, and DFN (4 mm × 3 mm) package suitability for space-constrained PCB layouts.
Technical Context
The LTC2383CDE-16#TRPBF implements a charge-redistribution SAR architecture with a fully differential input stage, internal oscillator-based timing control, and 2's complement serial output. Its conversion process begins on a rising CNV edge, completes in ≤730 ns, and outputs data MSB-first via SDO synchronized to SCK - with no pipeline delay or cycle latency.
It features dual supply domains: 2.5 V VDD powers core logic and ADC circuitry, while OVDD (1.71 V–5.25 V) independently supplies digital I/O, enabling seamless interfacing with mixed-voltage host controllers. The REF pins accept an external 2.4 V–2.6 V reference, and the analog inputs exhibit 45 pF sampling capacitance with 40 Ω switch resistance during acquisition.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees monotonic transfer function and no missing codes over full temperature range (0°C to 70°C). |
| Sampling Rate | 1 Msps - enables real-time digitization of signals up to 30 MHz input bandwidth without undersampling. |
| SNR | 92 dB (typ) at fIN = 20 kHz - supports >15 effective bits of dynamic range for precision measurement applications. |
| INL | ±2 LSB (max) - ensures end-point linearity error remains within ±0.003% of full-scale range (±2.5 V). |
| 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. |
| Differential Input Range | ±2.5 V - accommodates wide-swing industrial sensor outputs and bipolar signal conditioning stages. |
| Reference Input | 2.4 V–2.6 V external reference - requires low-noise, low-drift source (e.g., LTC6652-2.5) for full accuracy. |
Pinout & Package
Package: 16-lead (4 mm × 3 mm) plastic DFN with exposed pad (Pin 17), RoHS-compliant, rated for 0°C to 70°C operation (C-grade). Exposed pad must be soldered to PCB ground plane for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (CHAIN) | Chain mode selector | High = daisy-chain SPI mode (RDL/SDI becomes SDI); Low = normal mode (RDL/SDI enables/disables SDO). |
| 2 (VDD) | Digital core supply | 2.375 V–2.625 V; powers ADC logic and SAR core; bypass with 10 µF ceramic capacitor to GND. |
| 3, 6, 10, 16 (GND) | Analog/digital ground | Four dedicated ground pins minimize noise coupling; Pin 17 (exposed pad) is also GND and must be connected. |
| 4 (IN+), 5 (IN–) | Differential analog inputs | Accept ±2.5 V fully differential signal; input impedance modeled as 45 pF || 40 Ω during acquisition phase. |
| 7, 8 (REF) | Reference voltage input | 2.4 V–2.6 V external reference; decoupled with 47 µF X5R ceramic capacitor (0805 size) close to pins. |
| 9 (CNV) | Convert trigger | Rising edge initiates conversion; device powers down automatically when held high between conversions. |
| 11 (BUSY) | Conversion status indicator | Active-high open-drain output; asserts high at conversion start, deasserts low upon completion. |
| 12 (RDL/SDI) | Mode-dependent serial I/O | In Normal Mode: bus enable control; in Chain Mode: serial data input for daisy-chained configuration. |
| 13 (SCK) | Serial clock input | Supports up to 100 MHz clock (10 ns period); timing validated across 1.71 V–5.25 V OVDD range. |
| 14 (SDO) | Serial data output | 2's complement 16-bit result shifted MSB-first; tri-state controlled by RDL/SDI in Normal Mode. |
| 15 (OVDD) | I/O interface supply | 1.71 V–5.25 V; sets logic thresholds for all digital pins (SCK, CNV, BUSY, SDO, RDL/SDI, CHAIN). |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay / zero cycle latency | Enables deterministic real-time control loops and eliminates output code offset between consecutive samples. |
| SPI-compatible serial interface with daisy-chain mode | Reduces host GPIO count and simplifies multi-channel synchronization in compact data loggers or ATE systems. |
| Auto power-down between conversions | Reduces average power proportionally to sampling rate - e.g., drops from 13 mW (1 Msps) to 13 µW (1 ksps). |
| Guaranteed 16-bit no missing codes | Ensures unambiguous digital representation across full input range, critical for closed-loop feedback and calibration. |
| Internal conversion clock | Eliminates need for external timing components, reducing BOM cost and layout complexity in high-density designs. |
Applications
| Medical Imaging Front-End | Portable Data Acquisition |
|---|---|
Use Scenario: Digitizing ultrasound echo signals or MRI gradient waveforms requiring high dynamic range and low distortion. IC Role / Device Role / Timing Role: Primary high-speed ADC capturing analog sensor outputs with minimal latency and jitter. Use Value: 92 dB SNR and ±2 LSB INL preserve weak signal fidelity; 1 Msps throughput captures transient events without aliasing. |
Use Scenario: Battery-powered handheld test equipment measuring voltage, current, and temperature in field service. IC Role / Device Role / Timing Role: Core precision ADC enabling multi-sensor fusion with low quiescent power draw. Use Value: 13 µW standby power extends battery life; ±2.5 V differential input rejects common-mode noise in unshielded environments. |
| Industrial Process Monitoring | Automated Test Equipment (ATE) |
Use Scenario: Real-time monitoring of motor phase currents, pressure transducers, and thermocouple amplifiers in PLC modules. IC Role / Device Role / Timing Role: High-accuracy ADC interfaced to isolated analog front-ends for safety-critical loop control. Use Value: Guaranteed no missing codes prevents control discontinuities; 125°C-rated variants available for harsh environments. |
Use Scenario: Multi-channel stimulus-response testing of ICs and sensors using synchronized sampling across dozens of nodes. IC Role / Device Role / Timing Role: Synchronized SAR ADC in daisy-chain configuration for time-aligned waveform capture. Use Value: Daisy-chain SPI reduces interconnect complexity; 1 Msps throughput enables fast parametric test cycles. |
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 larger footprint and higher power; suited for lab-grade instrumentation, not portable devices. | Select AD7960BCPZ-RL7 only when >16-bit resolution and >1 Msps are mandatory and power/size budgets allow. |
| LTC2378-16#PBF | 16-bit, 1 Msps, same family architecture; lower power (9.5 mW), but only ±1.25 V input range and no daisy-chain mode. | Better power efficiency for single-ended or reduced-range applications; lacks chain mode for multi-ADC synchronization. | Choose LTC2378-16#PBF for ultra-low-power designs where differential ±2.5 V range and daisy-chain are unnecessary. |
Compared with AD7960BCPZ-RL7 and LTC2378-16#PBF, the LTC2383CDE-16#TRPBF uniquely balances 16-bit integrity, 1 Msps throughput, ±2.5 V differential input, daisy-chain capability, and 13 mW power - making it optimal for space- and power-constrained embedded systems requiring robust synchronization and wide dynamic range.
Availability
LTC2383CDE-16#TRPBF is available at Aetrix Electronics and suitable for medical imaging front-ends, portable data acquisition systems, and industrial process monitoring requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LTC2383CDE-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. (acquired Linear Technology in 2017) 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 belongs to Linear's high-speed precision SAR ADC product line, designed specifically for applications demanding no missing codes, low latency, and low power at 16-bit resolution - targeting portable instrumentation, medical imaging, and automated test equipment.
FAQ
What is the operating temperature range for the LTC2383CDE-16#TRPBF?
The LTC2383CDE-16#TRPBF is specified for 0°C to 70°C ambient operation (C-grade). This range is validated per the Absolute Maximum Ratings table and Electrical Characteristics section of the official datasheet, with all key parameters - including INL, SNR, and power consumption - guaranteed across this interval. For extended ranges, consider the I-grade (–40°C to 85°C) or H-grade (–40°C to 125°C) variants in the same DFN package.
Does the LTC2383CDE-16#TRPBF require an external reference, and what are the requirements?
Yes, the LTC2383CDE-16#TRPBF requires an external 2.4 V–2.6 V reference applied to both REF pins. The reference must supply up to 910 µA DC load at 1 Msps and exhibit low noise (< 10 µVRMS) and low drift (< 5 ppm/°C) to maintain full 16-bit accuracy. The LTC6652-2.5 is explicitly recommended and validated in the datasheet for this purpose, with a 47 µF X5R ceramic capacitor placed directly at the REF pins.
How does the daisy-chain mode work on the LTC2383CDE-16#TRPBF?
Daisy-chain mode is enabled by driving the CHAIN pin high. In this mode, the RDL/SDI pin functions as serial data input (SDI), accepting data from the SDO of a preceding ADC in the chain. The SDO pin then outputs the concatenated result - first the local 16-bit conversion, followed by data from upstream devices - allowing multiple LTC2383CDE-16#TRPBF units to share a single SCK and SDO line while maintaining sample alignment.
What is the significance of "no missing codes" for the LTC2383CDE-16#TRPBF?
"No missing codes" means that every possible 16-bit digital output code (0 to 65535 in 2's complement) appears at least once across the full ±2.5 V input range - verified over temperature and supply variations. This guarantee eliminates ambiguity in control algorithms and calibration routines, ensuring deterministic behavior in closed-loop systems and metrology applications where monotonicity is essential.
Can the LTC2383CDE-16#TRPBF operate with different OVDD and VDD voltages?
Yes - the LTC2383CDE-16#TRPBF supports independent supply domains: VDD (2.375 V–2.625 V) powers the ADC core and logic, while OVDD (1.71 V–5.25 V) sets I/O voltage levels for CNV, BUSY, SCK, SDO, RDL/SDI, and CHAIN. This allows direct interfacing with 1.8 V, 2.5 V, 3.3 V, or 5 V microcontrollers without level shifters, while maintaining optimal ADC performance at 2.5 V VDD.
LTC2383CDE-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:
- 0°C ~ 70°C
- Supplier Device Package:
- 16-DFN (4x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2383CDE-16#TRPBF FAQ
1.How can I place an order for LTC2383CDE-16#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2383CDE-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 LTC2383CDE-16#TRPBF reliable?
The price and inventory of LTC2383CDE-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 LTC2383CDE-16#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2383CDE-16#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2383CDE-16#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2383CDE-16#TRPBF?
LTC2383CDE-16#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2383CDE-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 LTC2383CDE-16#TRPBF?
For technical support, including LTC2383CDE-16#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2383CDE-16#TRPBF requirements.
6.How does Aetrix verify that LTC2383CDE-16#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2383CDE-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 LTC2383CDE-16#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2383CDE-16#TRPBF?
All LTC2383CDE-16#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2383CDE-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 LTC2383CDE-16#TRPBF part is unused and in its original packaging.
Return procedure for LTC2383CDE-16#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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