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Analog Devices Inc. LTC2383CDE-16#PBF
- Part No.:
- LTC2383CDE-16#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-WFDFN Exposed Pad
- Datasheet:
-
LTC2383CDE-16#PBF.pdf
- Description:
- IC ADC 16BIT SAR 16DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,328
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Product details
Overview
LTC2383CDE-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 at 20 kHz, ±2 LSB INL max, and no missing codes. It operates from a 2.5 V VDD supply, consumes 13 mW at full speed, and supports 1.8 V–5 V I/O logic via separate OVDD rail-ideal for high-speed data acquisition in compact instrumentation.
For engineers reviewing the LTC2383CDE-16#PBF datasheet, LTC2383CDE-16#PBF pinout, LTC2383CDE-16#PBF application, or LTC2383CDE-16#PBF equivalent, key selection criteria include guaranteed 16-bit no-missing-codes performance, daisy-chain SPI interface compatibility, internal conversion clock, auto power-down scaling with sampling rate, and operation across 0°C to 70°C in the 4 mm × 3 mm DFN package.
Technical Context
The LTC2383CDE-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 latency. Its internal oscillator eliminates external clock dependency for timing-critical systems.
It features dual-supply operation: 2.375 V–2.625 V on VDD for core logic and ADC, and 1.71 V–5.25 V on OVDD for flexible SPI-level interfacing. The REF pins accept a 2.4 V–2.6 V external reference, and the device draws up to 910 µA reference current at 1 Msps while maintaining <0.5 LSB voltage deviation when paired with LTC6652-2.5.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 65,536 discrete output levels with guaranteed no missing codes. |
| Sampling Rate | 1 Msps - enables real-time capture of signals up to 500 kHz (Nyquist), suitable for wideband sensor or ATE applications. |
| SNR | 92 dB (typ, fIN = 20 kHz) - supports >15 ENOB for precision measurement of low-distortion analog waveforms. |
| INL | ±2 LSB (max) - ensures monotonicity and linearity critical for closed-loop control and calibration-sensitive systems. |
| Power Consumption | 13 mW at 1 Msps; 13 µW at 1 ksps - ultra-low dynamic power scaling enables battery-operated or thermally constrained designs. |
| Input Range | ±2.5 V fully differential - maximizes dynamic range without signal attenuation or gain error from external amplifiers. |
| Reference Input | 2.4 V–2.6 V external reference - decoupled via 47 µF X5R ceramic capacitor; supports precision metrology-grade accuracy. |
Pinout & Package
Package: 16-lead (4 mm × 3 mm) plastic DFN with exposed pad (Pin 17 = GND). Requires soldering of exposed pad to PCB ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (CHAIN) | Chain mode selector | High = daisy-chain SPI mode (RDL/SDI becomes serial data input); low = normal bus-enable mode. |
| 2 (VDD) | Digital core supply | 2.375 V–2.625 V; powers ADC core and logic; requires 10 µF ceramic bypass to GND. |
| 3, 6, 10, 16 (GND) | Analog/digital ground | Multiple dedicated ground pins minimize noise coupling between analog and digital sections. |
| 4 (IN+), 5 (IN–) | Differential analog inputs | Accept ±2.5 V differential swing; input capacitance = 45 pF (sample), 5 pF (hold); require low-impedance drive. |
| 7, 8 (REF) | Reference voltage input | 2.4 V–2.6 V external reference; must be decoupled with 47 µF X5R capacitor close to pins. |
| 9 (CNV) | Convert trigger | Rising edge initiates conversion; high hold enables automatic power-down between conversions. |
| 11 (BUSY) | Conversion status indicator | Active-high open-drain output signaling conversion in progress; used for timing synchronization. |
| 12 (RDL/SDI) | Mode-dependent serial I/O | In Normal Mode: bus enable; in Chain Mode: serial data input for daisy-chained configurations. |
| 13 (SCK) | Serial clock input | Supports up to 100 MHz (10 ns period); controls data shift-out timing on SDO and data sampling on SDI. |
| 14 (SDO) | Serial data output | 2's complement 16-bit result shifted MSB-first; active only when RDL is low or CHAIN is high. |
| 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); bypass with 0.1 µF. |
| 17 (Exposed Pad) | Thermal & electrical ground | Must be soldered to PCB ground plane; essential for thermal dissipation (θJA = 43°C/W) and noise reduction. |
Key Features
| Feature | Design Value |
|---|---|
| No cycle latency | Delivers first valid conversion result within one sample period-enables deterministic real-time control loops. |
| Daisy-chain SPI mode | Allows cascading multiple LTC2383CDE-16#PBF devices on a single SPI bus, reducing GPIO count and PCB routing complexity. |
| Auto power-down | Reduces IDD from 5.2 mA to 0.5 µA between conversions, enabling ultra-low average power in burst-sampling applications. |
| Wide OVDD voltage range | Supports direct interfacing with 1.8 V, 2.5 V, 3.3 V, or 5 V microcontrollers/FPGAs without level-shifting circuitry. |
| Guaranteed operation to 70°C | Specified over full commercial temperature range (0°C to 70°C), validated for industrial instrumentation and medical equipment. |
Applications
| Medical Imaging Signal Digitization | High-Speed Industrial Data Acquisition |
|---|---|
Use Scenario: Digitizing CT/MRI front-end sensor outputs requiring high dynamic range and low distortion. IC Role / Device Role / Timing Role: Primary 16-bit SAR ADC capturing analog detector signals at up to 1 Msps with no pipeline delay. Use Value: 92 dB SNR and ±2 LSB INL ensure accurate reconstruction of low-contrast anatomical features without missing codes. |
Use Scenario: Real-time monitoring of motor phase currents, vibration spectra, or pressure transducers in PLC-based systems. IC Role / Device Role / Timing Role: High-throughput ADC synchronized to control loop timing via CNV/BUSY handshake. Use Value: 1 Msps throughput with deterministic latency enables sub-millisecond closed-loop response in servo drives. |
| Portable Test Equipment | Battery-Powered Precision Instrumentation |
Use Scenario: Handheld oscilloscopes or spectrum analyzers needing compact, low-power, high-fidelity digitization. IC Role / Device Role / Timing Role: Core ADC in space-constrained, battery-operated instruments with SPI-connected FPGA host. Use Value: 4 mm × 3 mm DFN package and 13 µW standby power extend runtime while maintaining 16-bit resolution. |
Use Scenario: Field-deployable environmental sensors (e.g., gas analyzers, water quality monitors) operating on coin-cell batteries. IC Role / Device Role / Timing Role: Low-duty-cycle ADC activated by wake-up timer or external event to minimize energy use. Use Value: Auto power-down reduces average current to µA range between samples, enabling multi-year battery life. |
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, 2.5 V supply, ±2.5 V input, but requires external reference and has higher 33 mW power at full speed. | Higher resolution and speed suit metrology labs; less suitable for portable or thermally constrained designs. | Select AD7960BCPZ-RL7 only when 18-bit resolution and >1 Msps are mandatory-and thermal/power budgets allow. |
| LTC2378-20#PBF | 20-bit, 1 Msps, same 2.5 V supply and ±2.5 V input, but consumes 29 mW and uses MSOP-16 (larger than DFN). | Targeted at ultra-high-precision applications where 20-bit ENOB justifies doubled power and larger footprint. | Choose LTC2378-20#PBF if system SNR requirement exceeds 100 dB and board area permits MSOP packaging. |
Compared with AD7960BCPZ-RL7 and LTC2378-20#PBF, the LTC2383CDE-16#PBF offers optimal balance of 16-bit fidelity, 1 Msps speed, ultra-low 13 mW power, and minimal 4 mm × 3 mm DFN footprint-making it the preferred choice for space- and power-sensitive high-speed digitization where 16-bit resolution suffices.
Availability
LTC2383CDE-16#PBF is available at Aetrix Electronics and suitable for high-speed data acquisition, portable instrumentation, and industrial process control requiring stable component supply and guaranteed commercial-temperature performance.
Supply support for LTC2383CDE-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, formed through the acquisition of Linear Technology in 2017.
The LTC2383-16 family was designed by Linear Technology to deliver high-speed, low-power, precision SAR ADC performance in compact packages for demanding instrumentation and industrial applications-emphasizing ease of use, robust timing, and seamless SPI integration.
FAQ
What is the maximum sampling rate of the LTC2383CDE-16#PBF?
The LTC2383CDE-16#PBF achieves a guaranteed maximum sampling rate of 1 Msps across its specified 0°C to 70°C operating temperature range. This is enabled by an internal oscillator that fixes conversion time at 610–730 ns, with total cycle time of 1 µs. No external clock is required, simplifying system timing design.
Does the LTC2383CDE-16#PBF require an external reference voltage?
Yes, the LTC2383CDE-16#PBF requires an external 2.4 V–2.6 V reference applied to its dual REF pins. The device draws up to 910 µA reference current at 1 Msps, so a low-noise, low-drift source like the LTC6652-2.5 is recommended. A 47 µF X5R ceramic capacitor must be placed directly at the REF pins for stable operation.
How does the daisy-chain mode work on the LTC2383CDE-16#PBF?
Daisy-chain mode is enabled by driving the CHAIN pin (Pin 1) high. In this mode, the RDL/SDI pin becomes a serial data input, allowing multiple LTC2383CDE-16#PBF devices to share one SPI bus. Conversion results cascade from one device's SDO to the next's RDL/SDI, reducing host GPIO usage and simplifying multi-channel synchronization.
What is the power consumption of the LTC2383CDE-16#PBF at different sampling rates?
The LTC2383CDE-16#PBF consumes 13 mW at 1 Msps, scales linearly with sampling rate, and drops to 13 µW at 1 ksps. In power-down mode (CNV held high between conversions), supply current falls to 0.5 µA. This dynamic scaling is automatic and requires no software intervention-ideal for burst-mode sensing.
Is the LTC2383CDE-16#PBF pin-compatible with other members of the LTC238X-16 family?
Yes-the LTC2383CDE-16#PBF shares identical pinout and package (16-lead DFN, 4 mm × 3 mm) with LTC2382-16 and LTC2381-16. However, speed and power differ: LTC2382-16 is rated for 500 ksps/6.5 mW, and LTC2381-16 for 250 ksps/3.25 mW. System firmware and layout can be reused across the family with only speed-related timing adjustments.
LTC2383CDE-16#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-WFDFN Exposed Pad
- 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:
- 0°C ~ 70°C
- Supplier Device Package:
- 16-DFN (4x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2383CDE-16#PBF FAQ
1.How can I place an order for LTC2383CDE-16#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2383CDE-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 LTC2383CDE-16#PBF reliable?
The price and inventory of LTC2383CDE-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 LTC2383CDE-16#PBF is usually 5 days.
3.What payment methods are accepted for LTC2383CDE-16#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2383CDE-16#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2383CDE-16#PBF?
LTC2383CDE-16#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2383CDE-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 LTC2383CDE-16#PBF?
For technical support, including LTC2383CDE-16#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2383CDE-16#PBF requirements.
6.How does Aetrix verify that LTC2383CDE-16#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2383CDE-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 LTC2383CDE-16#PBF meets industry standards.
7.What is the process for return or replacement of LTC2383CDE-16#PBF?
All LTC2383CDE-16#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2383CDE-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 LTC2383CDE-16#PBF part is unused and in its original packaging.
Return procedure for LTC2383CDE-16#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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