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Analog Devices Inc. LTC2364CDE-16#TRPBF
- Part No.:
- LTC2364CDE-16#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-WFDFN Exposed Pad
- Datasheet:
-
LTC2364CDE-16#TRPBF.pdf
- Description:
- IC ADC 16BIT SAR 16DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,846
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Product details
Overview
LTC2364CDE-16#TRPBF from Analog Devices (formerly Linear Technology) is a 16-bit pseudo-differential unipolar successive approximation register (SAR) ADC operating from a single 2.5V supply, delivering 250ksps throughput, ±0.75LSB INL max, and 94.7dB SNR at 2kHz input with 5V reference - ideal for high-speed medical imaging and portable instrumentation requiring precision, low power, and wide dynamic range.
For engineers reviewing the LTC2364CDE-16#TRPBF datasheet, LTC2364CDE-16#TRPBF pinout, LTC2364CDE-16#TRPBF application, or LTC2364CDE-16#TRPBF equivalent, key selection criteria include guaranteed 16-bit no-missing-codes operation, internal conversion clock eliminating external timing constraints, daisy-chain SPI interface compatibility across 1.8V–5V logic, and thermal stability to 70°C in the 4mm × 3mm DFN package.
Technical Context
The LTC2364CDE-16#TRPBF implements a charge redistribution capacitor DAC (CDAC) architecture with pseudo-differential sampling, where IN+ accepts 0V to VREF signals while IN– serves as ground-sense reference within ±100mV of GND. Conversion initiates on CNV rising edge and completes in 1.9–3µs with zero pipeline latency.
Its SPI-compatible serial interface supports both normal mode (RDL/SDI as bus enable) and daisy-chain mode (RDL/SDI as serial data input), with SDO outputting straight-binary 16-bit codes MSB-first on SCK rising edges. Internal oscillator sets conversion timing, and automatic power-down between conversions reduces idle current to 0.9µA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees full-scale quantization into 65,536 discrete levels with no missing codes. |
| Sampling Rate | 250ksps - enables real-time capture of signals up to 125kHz Nyquist bandwidth without undersampling. |
| INL (Max) | ±0.75LSB - ensures monotonicity and <0.001% full-scale linearity error for precision measurement systems. |
| SNR (Typ) | 94.7dB at fIN=2kHz, VREF=5V - corresponds to effective resolution >15.5 bits under typical conditions. |
| Power (250ksps) | 3.4mW - achieved with 2.5V VDD and 2.5V OVDD, enabling battery-operated 24-hour continuous acquisition. |
| Reference Range | 2.5V to 5.1V - allows flexible scaling of input dynamic range while maintaining LSB size from 38µV to 78µV. |
| Operating Temp | 0°C to 70°C - validated performance across commercial temperature range with no derating required. |
Pinout & Package
Package: 16-lead (4mm × 3mm) plastic DFN with exposed pad (Pin 17), RoHS-compliant, moisture sensitivity level 3. Exposed pad must be soldered to PCB ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CHAIN (1) | Mode control input | Selects daisy-chain (high) or normal bus-enable (low) operation; referenced to OVDD voltage. |
| VDD (2) | Analog power supply | 2.5V ±62.5mV supply powering core ADC circuitry; requires 10µF ceramic bypass to GND. |
| GND (3,6,10,16) | Analog/digital ground | Common return for analog inputs, reference, and digital I/O; multiple pins reduce ground impedance. |
| IN+ (4) | Pseudo-differential analog input | Accepts 0V to VREF signal; sees 45pF capacitance and 40Ω switch resistance during acquisition. |
| IN– (5) | Ground sense reference | Biased near GND (±100mV); rejects common-mode noise but must be tied to clean ground plane. |
| REF (7,8) | Reference voltage input | Accepts 2.5V–5.1V external reference; draws pulsed current per conversion; requires 47µF X5R decoupling. |
| CNV (9) | Convert trigger input | Rising-edge–initiated conversion start; powers up ADC and begins acquisition phase. |
| BUSY (11) | Status indicator output | Active-high open-drain signal indicating conversion in progress; synchronized to CNV timing. |
| RDL/SDI (12) | Configurable serial I/O | In normal mode: bus enable; in chain mode: serial data input from upstream ADC in daisy chain. |
| SCK (13) | Serial clock input | Drives data transfer timing; supports up to 100MHz SCK frequency with 4ns min pulse width. |
| SDO (14) | Serial data output | Outputs 16-bit straight-binary code MSB-first; valid 9.5ns after SCK↑ with 20pF load. |
| OVDD (15) | Digital I/O supply | 1.71V–5.25V logic interface supply; sets VIH/VIL thresholds and drives SDO/BUSY outputs. |
| GND (17) | Exposed pad ground | Thermal and electrical ground connection; mandatory soldering required for thermal dissipation (θJA=40°C/W). |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay | Zero-cycle latency enables deterministic real-time control loops and immediate post-conversion processing. |
| Auto power-down | Reduces quiescent current to 0.9µA between conversions, scaling power linearly with sample rate down to 250sps. |
| SPI-compatible interface | Supports 1.8V, 2.5V, 3.3V, and 5V logic families without level shifters, simplifying host MCU integration. |
| Daisy-chain capability | Enables synchronous multi-channel acquisition with single SCK/SDO bus, reducing PCB routing complexity. |
| Guaranteed operation to 70°C | Validated parametric performance across full commercial temperature range without derating or calibration. |
Applications
| Medical Imaging | High-Speed Data Acquisition |
|---|---|
Use Scenario: Digitizing ultrasound echo signals or CT detector outputs requiring high SNR and minimal harmonic distortion. IC Role / Device Role / Timing Role: Primary SAR ADC capturing analog sensor outputs at 250ksps with precise 94.7dB SNR and –120dB THD. Use Value: Enables detection of low-amplitude tissue reflections by preserving signal fidelity across 16-bit dynamic range without missing codes. | Use Scenario: Real-time waveform capture in oscilloscopes or automated test equipment with multi-kHz bandwidth requirements. IC Role / Device Role / Timing Role: High-throughput sampling front-end with deterministic 4µs inter-conversion period and no latency. Use Value: Supports accurate time-domain analysis of fast transients via guaranteed 250ksps sustained rate and internal clock synchronization. |
| Portable Instrumentation | Industrial Process Control |
Use Scenario: Battery-powered handheld multimeters or spectral analyzers needing extended runtime and precision DC/AC measurements. IC Role / Device Role / Timing Role: Low-power 16-bit ADC consuming only 3.4mW at full rate and 3.4µW at 250sps sampling. Use Value: Extends field-deployable device battery life while maintaining laboratory-grade accuracy over 0°C–70°C ambient range. | Use Scenario: Monitoring analog sensor outputs (e.g., pressure, temperature) in PLC I/O modules with stringent long-term stability requirements. IC Role / Device Role / Timing Role: Precision digitizer interfacing with external references like LTC6655-5 for <0.025% initial accuracy. Use Value: Delivers stable 16-bit measurements despite supply and temperature variations, supported by ±0.75LSB INL and low drift specs. |
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 | 2.5V supply, 1MSPS, 92.5dB SNR, SPI interface, 10-pin VSSOP package | Higher speed but lower SNR; lacks daisy-chain mode and auto power-down | Choose for higher throughput where SNR >94dB is not critical and board space favors smaller package. |
| AD7960BCPZ-RL7 | 18-bit, 5MSPS, differential input, 91.5dB SNR, LVDS/CMOS interface, 32-lead LFCSP | Higher resolution and speed but significantly higher power (43mW), no internal oscillator, larger footprint | Choose when 18-bit resolution and >1MSPS are mandatory, accepting higher cost, power, and layout complexity. |
Compared with ADS8860IDRCT and AD7960BCPZ-RL7, the LTC2364CDE-16#TRPBF offers optimal balance of 94.7dB SNR, ultra-low 3.4mW power, integrated timing, and compact DFN packaging - making it uniquely suited for portable, thermally constrained, and cost-sensitive 16-bit acquisition systems.
Availability
LTC2364CDE-16#TRPBF is available at Aetrix Electronics and suitable for medical imaging systems, portable instrumentation, and industrial process control applications requiring stable component supply, long-term manufacturability, and guaranteed commercial-temperature performance.
Supply support for LTC2364CDE-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 semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC2364CDE-16#TRPBF belongs to ADI's legacy Linear Technology precision SAR ADC product line, engineered specifically for low-power, high-SNR data acquisition in space- and energy-constrained systems.
FAQ
What is the maximum sampling rate of the LTC2364CDE-16#TRPBF?
The LTC2364CDE-16#TRPBF achieves a maximum sampling rate of 250ksps with guaranteed timing and full 16-bit performance. This rate is maintained across the full 0°C to 70°C operating temperature range and does not require external clocking - the internal oscillator ensures consistent conversion timing independent of system clock jitter.
Does the LTC2364CDE-16#TRPBF support daisy-chain configuration?
Yes, the LTC2364CDE-16#TRPBF supports daisy-chain mode via the CHAIN pin (Pin 1). When CHAIN is high, RDL/SDI functions as serial data input, allowing multiple LTC2364CDE-16#TRPBF devices to share a single SCK and SDO bus. This enables synchronized multi-channel acquisition without additional GPIO resources on the host controller.
What reference voltage range is compatible with the LTC2364CDE-16#TRPBF?
The LTC2364CDE-16#TRPBF accepts an external reference voltage from 2.5V to 5.1V on its REF pins (7 and 8). At 5V reference, the LSB size is 76µV; at 2.5V, it is 38µV. The device draws pulsed current from the reference during each conversion, so a low-noise, low-drift source like the LTC6655-5 is recommended for optimal SNR and THD performance.
How does the LTC2364CDE-16#TRPBF manage power consumption during idle periods?
The LTC2364CDE-16#TRPBF automatically enters power-down mode between conversions, reducing supply current to just 0.9µA. This feature scales dynamically with sampling rate - at 250sps, total power drops to 3.4µW. Power-down is transparent to the user and requires no software intervention, making it ideal for burst-mode or event-triggered acquisition systems.
Is the LTC2364CDE-16#TRPBF pin-compatible with other variants in the LTC2364 family?
Yes, the LTC2364CDE-16#TRPBF shares identical pinout and functionality with all DFN-package variants (e.g., LTC2364IDE-16#TRPBF, LTC2364HDE-16#TRPBF), differing only in temperature grade and marking. It is not pin-compatible with MSOP-package versions due to different lead count and pad layout, though functional behavior and register mapping remain consistent across the family.
LTC2364CDE-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):
- 250k
- 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:
- 0°C ~ 70°C
- Supplier Device Package:
- 16-DFN (4x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2364CDE-16#TRPBF FAQ
1.How can I place an order for LTC2364CDE-16#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2364CDE-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 LTC2364CDE-16#TRPBF reliable?
The price and inventory of LTC2364CDE-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 LTC2364CDE-16#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2364CDE-16#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2364CDE-16#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2364CDE-16#TRPBF?
LTC2364CDE-16#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2364CDE-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 LTC2364CDE-16#TRPBF?
For technical support, including LTC2364CDE-16#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2364CDE-16#TRPBF requirements.
6.How does Aetrix verify that LTC2364CDE-16#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2364CDE-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 LTC2364CDE-16#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2364CDE-16#TRPBF?
All LTC2364CDE-16#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2364CDE-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 LTC2364CDE-16#TRPBF part is unused and in its original packaging.
Return procedure for LTC2364CDE-16#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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