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Analog Devices Inc. LTC2367IDE-16#PBF
- Part No.:
- LTC2367IDE-16#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-WFDFN Exposed Pad
- Datasheet:
-
LTC2367IDE-16#PBF.pdf
- Description:
- IC ADC 16BIT SAR 16DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,146
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Product details
Overview
LTC2367IDE-16#PBF from Analog Devices (formerly Linear Technology) is a 16-bit pseudo-differential unipolar successive approximation register (SAR) ADC optimized for high-speed, low-noise data acquisition. It operates from a single 2.5V supply, supports 0V to VREF input range (VREF = 2.5V–5.1V), delivers 500ksps throughput with no pipeline delay, achieves ±0.75LSB INL max and 94.7dB SNR at 2kHz, and targets precision instrumentation in industrial and medical systems.
For engineers reviewing the LTC2367IDE-16#PBF datasheet, LTC2367IDE-16#PBF pinout, LTC2367IDE-16#PBF application, or LTC2367IDE-16#PBF equivalent, key selection criteria include guaranteed 16-bit no-missing-codes operation, daisy-chain SPI interface compatibility across 1.8V–5V logic, internal conversion clock, –40°C to +85°C extended temperature rating, and 4mm × 3mm DFN package with exposed thermal pad.
Technical Context
The LTC2367IDE-16#PBF implements a charge-redistribution SAR architecture with a 16-bit CDAC and differential comparator, sampling pseudo-differential inputs (IN+, IN–) where IN– serves as ground sense (±100mV range). Conversion is initiated by a rising edge on CNV, with internal oscillator setting tCONV = 1.5µs and zero cycle latency.
Its SPI-compatible serial interface supports both normal mode (RDL/SDI as bus enable) and daisy-chain mode (RDL/SDI as SDI when CHAIN = high), with SDO outputting straight-binary 16-bit data MSB-first on SCK rising edges. Power management includes automatic power-down between conversions, reducing current to 0.9µA in shutdown mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees full 65,536-code dynamic range with no missing codes over full temperature range. |
| Sampling Rate | 500ksps - enables real-time capture of signals up to 250kHz Nyquist bandwidth without undersampling. |
| SNR | 94.7dB (typ, fIN = 2kHz, VREF = 5V) - corresponds to ~15.8 effective bits (ENOB), critical for high-fidelity signal digitization. |
| INL | ±0.75LSB (max) - ensures monotonicity and linearity error ≤ ±47µV at 5V reference, supporting precision calibration. |
| Power Dissipation | 6.8mW at 500ksps - enables battery-operated or thermally constrained designs without active cooling. |
| Reference Range | VREF = 2.5V to 5.1V - allows flexible scaling of input full-scale range while maintaining 76µV LSB step size at 5V. |
| Operating Temp | –40°C to +85°C - qualified for industrial environments including factory automation and outdoor instrumentation. |
Pinout & Package
Package: 16-lead (4mm × 3mm) plastic DFN with exposed thermal pad (Pin 17), RoHS-compliant, moisture sensitivity level 3. Exposed pad must be soldered to PCB ground plane for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CHAIN (1) | Mode control input | Selects daisy-chain (high) or normal bus-enable (low); referenced to OVDD voltage level. |
| VDD (2) | Analog supply | 2.5V ±62.5mV main supply; bypass with 10µF ceramic capacitor to GND for noise suppression. |
| GND (3,6,10,16) | Analog/digital ground | Common reference for analog inputs, digital I/O, and internal circuitry; multiple pins reduce ground impedance. |
| IN+ (4) | Pseudo-differential analog input | Accepts 0V to VREF input voltage; sees 45pF capacitance and 40Ω switch resistance during acquisition. |
| IN– (5) | Ground sense reference | Provides common-mode rejection; limited to ±100mV vs GND; ties to remote ground or local ground plane. |
| REF (7,8) | Reference voltage input | Defines full-scale range; requires 47µF X5R ceramic decoupling close to pin; draws 0.24–0.32mA at 500ksps. |
| CNV (9) | Convert trigger | Rising-edge–initiated conversion start; minimum pulse width 20ns; powers up ADC from auto-shutdown state. |
| BUSY (11) | Status indicator | Active-high open-drain output signaling conversion in progress; delays 13ns after CNV↑. |
| RDL/SDI (12) | Configurable serial I/O | In normal mode: bus enable; in chain mode: serial data input for daisy-chained configuration. |
| SCK (13) | Serial clock input | Accepts 100MHz max clock (10ns period); controls timing of SDO data output and SDI sampling. |
| SDO (14) | Serial data output | MSB-first straight-binary 16-bit result; valid 9.5ns after SCK↑; driven to OVDD/GND levels. |
| OVDD (15) | Digital I/O supply | 1.71V–5.25V logic interface supply; sets VIH/VIL thresholds and drives SDO/RDL/SDI/BUSY levels. |
| GND (17) | Exposed thermal pad | Must be soldered to PCB ground plane; provides primary thermal path and reduces junction-to-board θJA to 40°C/W. |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay / zero cycle latency | Enables deterministic real-time control loops and eliminates FIFO buffering requirements in closed-loop systems. |
| Internal conversion clock | Removes need for external timing components or precise clock synchronization, simplifying system-level timing design. |
| Auto power-down between conversions | Reduces average power consumption proportionally to sampling rate-drops to 6.8µW at 500sps for ultra-low-power wake-up sensing. |
| SPI-compatible daisy-chain mode | Allows synchronous multi-channel acquisition using single SCK/SDO lines, minimizing MCU GPIO count and PCB routing complexity. |
| Pseudo-differential input architecture | Rejects common-mode noise on IN+/IN– pair while maintaining unipolar 0V–VREF range, easing front-end driver design versus true differential ADCs. |
Applications
| Medical Imaging Signal Chain | Industrial Process Monitoring |
|---|---|
Use Scenario: Digitizing low-amplitude analog outputs from ultrasound transducer arrays or MRI gradient amplifiers requiring high SNR and minimal harmonic distortion. IC Role / Device Role / Timing Role: Primary high-speed ADC capturing baseband signals at ≥250kHz bandwidth with 16-bit fidelity and deterministic latency. Use Value: 94.7dB SNR and –119dB THD preserve diagnostic image contrast and spatial resolution; 500ksps rate supports real-time beamforming. | Use Scenario: High-accuracy monitoring of pressure, temperature, and flow sensors in PLC-based factory automation systems operating across –40°C to +85°C ambient. IC Role / Device Role / Timing Role: Precision sensor interface ADC with guaranteed no-missing-codes operation and stable INL over full industrial temperature range. Use Value: ±0.75LSB INL max ensures consistent calibration across temperature; auto power-down extends uptime in battery-backed remote I/O modules. |
| Portable Test Equipment | ATE Digital Pattern Generator Interface |
Use Scenario: Battery-powered handheld oscilloscopes or spectrum analyzers needing low power, small footprint, and high DC accuracy for field diagnostics. IC Role / Device Role / Timing Role: Core acquisition engine delivering 16-bit resolution in compact 4mm × 3mm DFN package with minimal external support components. Use Value: 6.8mW at 500ksps enables >8-hour runtime on single-cell Li-ion; daisy-chain mode supports multi-channel expansion without added controllers. | Use Scenario: Capturing high-speed digital pattern generator outputs or jitter-sensitive clock signals in automated test equipment for semiconductor validation. IC Role / Device Role / Timing Role: Low-jitter, low-aperture-uncertainty ADC (4ps aperture jitter) synchronizing to external timing references via CNV edge. Use Value: 500ps aperture delay and 4ps jitter minimize time-domain uncertainty; SPI interface enables tight synchronization with ATE controller clocks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8860IDRCT | 16-bit, 1MSPS, single-ended input only; 2.5V supply; SPI interface; no daisy-chain mode; 0.5LSB INL max. | Higher speed but lacks pseudo-differential input and daisy-chain capability; requires separate driver for bipolar signals. | Choose for maximum throughput in single-ended systems where INL tolerance < ±0.5LSB is mandatory and board space permits larger 10-pin VSSOP package. |
| AD7960BCPZ-RL7 | 18-bit, 5MSPS, pseudo-differential; 5V supply; LVDS/CMOS parallel interface; no SPI; 1.25LSB INL max; 96.5dB SNR. | Higher resolution and speed but consumes 47mW; requires complex layout for LVDS; no auto power-down. | Choose when ENOB > 15.5 bits is required and system can accommodate higher power, parallel interface, and larger 48-lead LFCSP package. |
Compared with ADS8860IDRCT and AD7960BCPZ-RL7, the LTC2367IDE-16#PBF uniquely balances 16-bit precision, 500ksps throughput, ultra-low 6.8mW power, SPI daisy-chain flexibility, and robust –40°C to +85°C operation in a compact DFN-making it optimal for portable, multi-channel, thermally constrained industrial and medical data loggers.
Availability
LTC2367IDE-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 RoHS-compliant packaging.
Supply support for LTC2367IDE-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 semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC2367IDE-16#PBF belongs to ADI's legacy Linear Technology precision SAR ADC product line, engineered for applications demanding high DC accuracy, low noise, and low power in harsh environments-especially where deterministic latency and simplified timing are critical.
FAQ
What is the absolute maximum input voltage range for IN+ and IN– on the LTC2367IDE-16#PBF?
The LTC2367IDE-16#PBF specifies an absolute input range of –0.1V to (VREF + 0.1V) for IN+ and –0.1V to +0.1V for IN–, referenced to GND. Exceeding these limits risks latch-up or permanent damage, even if within the 6V REF absolute maximum rating. The functional pseudo-differential range remains 0V to VREF for IN+–IN–, with IN– acting as a ground-sense node.
Does the LTC2367IDE-16#PBF require an external clock source for conversion timing?
No, the LTC2367IDE-16#PBF integrates an internal oscillator that sets conversion time (tCONV = 1.5µs typical), eliminating the need for an external clock source. The only required external timing signal is the CNV rising edge to initiate conversion; SCK is used solely for serial data transfer timing, not for core ADC operation.
How does the daisy-chain mode function on the LTC2367IDE-16#PBF, and what is its practical benefit?
In daisy-chain mode (CHAIN = high), the RDL/SDI pin becomes a serial data input, allowing multiple LTC2367IDE-16#PBF devices to share one SCK and SDO line. Each device shifts its 16-bit result into the next, enabling synchronized multi-channel acquisition with minimal MCU GPIO usage and reduced PCB routing complexity-ideal for compact data loggers or modular sensor systems.
What is the recommended decoupling for the REF pin of the LTC2367IDE-16#PBF, and why is it critical?
The REF pin of the LTC2367IDE-16#PBF requires a 47µF X5R ceramic capacitor (0805 size) placed directly adjacent to the pin. This large-value, low-ESR cap supplies instantaneous charge (QCONV) drawn during each conversion, preventing reference droop that would degrade INL and SNR. Without proper decoupling, transient voltage sag on REF causes code-dependent gain errors and increased harmonic distortion.
Can the LTC2367IDE-16#PBF operate with different supply voltages on VDD and OVDD, and what are the valid ranges?
Yes-the LTC2367IDE-16#PBF supports independent supplies: VDD must be 2.375V–2.625V (nominal 2.5V) for analog core operation, while OVDD may range from 1.71V–5.25V to interface with 1.8V, 2.5V, 3.3V, or 5V logic families. This dual-supply flexibility allows seamless integration into mixed-voltage systems without level shifters.
LTC2367IDE-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):
- 500k
- Number of Inputs:
- 1
- Input Type:
- Pseudo-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:
- -
LTC2367IDE-16#PBF FAQ
1.How can I place an order for LTC2367IDE-16#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2367IDE-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 LTC2367IDE-16#PBF reliable?
The price and inventory of LTC2367IDE-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 LTC2367IDE-16#PBF is usually 5 days.
3.What payment methods are accepted for LTC2367IDE-16#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2367IDE-16#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2367IDE-16#PBF?
LTC2367IDE-16#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2367IDE-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 LTC2367IDE-16#PBF?
For technical support, including LTC2367IDE-16#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2367IDE-16#PBF requirements.
6.How does Aetrix verify that LTC2367IDE-16#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2367IDE-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 LTC2367IDE-16#PBF meets industry standards.
7.What is the process for return or replacement of LTC2367IDE-16#PBF?
All LTC2367IDE-16#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2367IDE-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 LTC2367IDE-16#PBF part is unused and in its original packaging.
Return procedure for LTC2367IDE-16#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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