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Analog Devices Inc. LTC2364IDE-16#PBF
- Part No.:
- LTC2364IDE-16#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-WFDFN Exposed Pad
- Datasheet:
-
LTC2364IDE-16#PBF.pdf
- Description:
- IC ADC 16BIT SAR 16DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,612
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Product details
Overview
LTC2364IDE-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 250ksps throughput with no pipeline delay, achieves ±0.75LSB INL max and 94.7dB SNR (typ), and is rated for –40°C to +85°C operation in a 4mm × 3mm DFN package - ideal for portable instrumentation and industrial process control.
For engineers reviewing the LTC2364IDE-16#PBF datasheet, LTC2364IDE-16#PBF pinout, LTC2364IDE-16#PBF application, or LTC2364IDE-16#PBF equivalent, key selection criteria include guaranteed 16-bit no-missing-codes performance, daisy-chain SPI interface compatibility with 1.8V–5V logic, internal conversion clock, auto power-down at 3.4µW idle, and thermal stability up to 85°C.
Technical Context
The LTC2364IDE-16#PBF implements a charge-redistribution SAR architecture with a 16-bit CDAC and differential comparator, sampling pseudo-differential inputs (IN+, IN–) using an internal oscillator to fix conversion time at 1.9–3µs. Its acquisition phase presents ~45pF input capacitance and ~40Ω switch resistance per analog input, requiring careful drive circuit design to settle within 3.46µs.
It features dual supply domains: 2.5V analog core (VDD) and flexible 1.71V–5.25V digital I/O (OVDD), enabling interoperability with mixed-voltage host systems. The CHAIN pin enables daisy-chain mode for multi-ADC synchronization without external timing controllers, while BUSY and CNV signals support precise conversion triggering and status monitoring.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees full-scale quantization into 65,536 discrete levels with no missing codes across temperature. |
| Sampling Rate | 250ksps - enables real-time capture of signals up to 125kHz Nyquist bandwidth with zero cycle latency. |
| SNR | 94.7dB (typ, fIN = 2kHz, VREF = 5V) - corresponds to effective resolution >15.5 bits and <76µV rms noise floor at full scale. |
| INL | ±0.75LSB (max) - ensures monotonicity and linearity error ≤±0.00115% of full scale, critical for precision measurement. |
| Power Dissipation | 3.4mW at 250ksps - enables battery-powered operation; drops to 3.4µW in power-down mode for intermittent sampling. |
| Reference Range | 2.5V to 5.1V - allows system-level trade-offs between dynamic range, noise, and headroom via external reference selection. |
| Operating Temp | –40°C to +85°C - qualified for industrial environments without derating; H-grade variants extend to 125°C. |
Pinout & Package
Package: 16-lead (4mm × 3mm) plastic DFN with exposed pad (Pin 17), thermally connected to GND. Requires soldering of exposed pad to PCB ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CHAIN (1) | Mode selector | High enables daisy-chain SPI mode (RDL/SDI becomes serial input); low enables normal bus-enable mode. |
| VDD (2) | Analog supply | 2.5V ±62.5mV core supply; bypass with 10µF ceramic capacitor to GND for noise suppression. |
| GND (3,6,10,16) | Ground reference | Four dedicated ground pins minimize ground bounce; exposed pad (17) must be soldered to PCB ground plane. |
| IN+ (4) | Pseudo-differential input (+) | Accepts 0V to VREF signal; input impedance ~45pF in sample mode, requires low-Z driver for settling. |
| IN– (5) | Pseudo-differential input (–) | Common-mode sense node; limited to ±100mV vs GND; ties to remote ground or local ground plane. |
| REF (7,8) | Reference voltage input | Dual-pin connection for 2.5V–5.1V external reference; requires 47µF X5R ceramic decoupling at pin. |
| CNV (9) | Convert trigger | Rising edge initiates conversion and powers up ADC; minimum pulse width 20ns; no setup/hold required. |
| BUSY (11) | Status indicator | Active-high open-drain output signaling conversion in progress; timing-critical for SCK synchronization. |
| RDL/SDI (12) | Serial interface control/data-in | In normal mode: bus enable; in chain mode: serial data input from upstream ADC in daisy chain. |
| SCK (13) | Serial clock input | Accepts 10ns min period (100MHz max); controls data shift-out timing on SDO; supports daisy-chain timing. |
| SDO (14) | Serial data output | MSB-first straight-binary output; valid 9.5ns after SCK↑; driven by OVDD voltage domain. |
| OVDD (15) | I/O supply | 1.71V–5.25V logic interface supply; sets VIH/VIL thresholds and drives SDO/RDL/SDI/BUSY levels. |
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 master clock distribution, simplifying PCB layout and reducing BOM count. |
| Auto power-down between conversions | Reduces average power proportionally to sampling rate - e.g., 3.4µW at 250sps - extending battery life in portable devices. |
| SPI-compatible daisy-chain mode | Allows synchronous sampling of multiple LTC2364IDE-16#PBF devices using single SCK/SDO lines, minimizing interconnect complexity. |
| Guaranteed operation to 85°C | Validated performance over full industrial temperature range without specification derating or thermal management overhead. |
Applications
| Portable Instrumentation | Industrial Process Control |
|---|---|
Use Scenario: Handheld multimeters and portable oscilloscopes requiring high-resolution DC and low-frequency AC measurements with battery efficiency. IC Role / Device Role / Timing Role: Primary analog-to-digital converter capturing sensor outputs and front-end amplifier signals at up to 250ksps with minimal latency. Use Value: 94.7dB SNR and ±0.75LSB INL ensure accurate 16-bit digitization of microvolt-level signals; 3.4mW power enables >24-hour battery runtime. |
Use Scenario: Distributed I/O modules in PLCs and SCADA systems acquiring temperature, pressure, and flow sensor data across harsh factory environments. IC Role / Device Role / Timing Role: High-reliability ADC interfacing with isolated analog front-ends and communicating via SPI to industrial microcontrollers. Use Value: –40°C to +85°C rating and robust ESD-protected inputs ensure stable operation in electrically noisy plants; daisy-chain mode simplifies multi-channel expansion. |
| Medical Imaging Subsystems | Automated Test Equipment (ATE) |
Use Scenario: Ultrasound beamformer receive paths and portable ECG monitors needing low-noise, low-power digitization of conditioned analog waveforms. IC Role / Device Role / Timing Role: Signal-chain ADC converting amplified transducer or electrode outputs with high dynamic range and low THD. Use Value: –120dB THD and 125dB SFDR preserve harmonic fidelity of physiological signals; pseudo-differential input rejects common-mode interference from body coupling. |
Use Scenario: Modular ATE channel cards performing parametric testing of ICs and passive components with synchronized multi-channel sampling. IC Role / Device Role / Timing Role: Precision acquisition engine triggered by system-level timing controller, delivering timestamped 16-bit samples to FPGA-based processing. Use Value: No missing codes and 250ksps throughput support fast pass/fail decisions; BUSY/CNV timing enables tight synchronization across 16+ channels. |
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 |
|---|---|---|---|
| AD7682BCPZ-RL7 | 250ksps, 16-bit, pseudo-differential, but uses 5V VDD and lacks daisy-chain mode; INL ±1.5LSB (max). | Requires higher supply voltage and external timing; less suitable for low-voltage portable designs or multi-ADC synchronization. | Select when legacy 5V system integration or ADI ecosystem compatibility outweighs daisy-chain and ultra-low-power advantages. |
| ADS8860IDRCT | 16-bit, 1MSPS, single-ended input only; consumes 4.5mW at full speed; no internal oscillator - requires external clock. | Higher speed but incompatible input structure; demands external clock generation and layout for clock distribution and jitter control. | Select when single-ended signal chain dominates and >250ksps sampling is mandatory, accepting added timing complexity and power cost. |
Compared with AD7682BCPZ-RL7 and ADS8860IDRCT, the LTC2364IDE-16#PBF uniquely combines 2.5V operation, integrated timing, daisy-chain capability, and sub-0.75LSB INL - making it optimal for space-constrained, multi-channel, battery-aware industrial and medical systems where deterministic latency and thermal stability are non-negotiable.
Availability
LTC2364IDE-16#PBF is available at Aetrix Electronics and suitable for portable instrumentation, industrial process control, and medical imaging subsystems requiring stable component supply, long-term lifecycle assurance, and guaranteed industrial-temperature performance.
Supply support for LTC2364IDE-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, serving industrial, automotive, communications, and healthcare markets.
The LTC2364IDE-16#PBF belongs to ADI's precision SAR ADC product line, engineered for applications demanding high resolution, low power, and deterministic timing - especially where board space, thermal constraints, and multi-channel synchronization are critical.
FAQ
What is the maximum recommended reference voltage for the LTC2364IDE-16#PBF?
The LTC2364IDE-16#PBF supports an external reference voltage from 2.5V to 5.1V. Operation above 5.1V violates absolute maximum ratings and may cause permanent damage. At 5.1V, LSB size is ~78µV; at 2.5V, LSB is ~38µV - allowing trade-offs between dynamic range and resolution. Reference current draw scales with sampling rate, peaking at 0.2mA at 250ksps.
Does the LTC2364IDE-16#PBF require external clocking for conversion timing?
No, the LTC2364IDE-16#PBF integrates an internal oscillator that sets conversion time (1.9–3µs), eliminating dependency on external clocks. Only the SPI serial interface requires an external SCK signal for data readout. This simplifies system timing architecture and reduces jitter-sensitive clock routing on PCBs.
How does the pseudo-differential input architecture of the LTC2364IDE-16#PBF improve noise immunity?
The LTC2364IDE-16#PBF's pseudo-differential input (IN+, IN–) rejects common-mode noise by comparing IN+ to a grounded or remote-sense IN– node. With 80dB CMRR at 125kHz, it suppresses interference coupled equally onto both traces - critical in noisy industrial or medical environments where ground loops or EMI degrade single-ended signals.
Can the LTC2364IDE-16#PBF operate with 1.8V digital I/O while using a 2.5V analog supply?
Yes. The LTC2364IDE-16#PBF separates analog (VDD = 2.5V) and digital I/O (OVDD = 1.71V–5.25V) supplies. With OVDD = 1.8V, VIH = 1.44V and VIL = 0.36V are guaranteed, enabling direct interfacing to 1.8V FPGAs or microcontrollers without level shifters - preserving signal integrity and reducing component count.
What is the significance of "no missing codes" in the LTC2364IDE-16#PBF specifications?
"No missing codes" means the LTC2364IDE-16#PBF guarantees monotonic transfer function across its entire 16-bit range (0 to 65,535) under all operating conditions - including full temperature range (–40°C to +85°C). This ensures every possible digital code appears at least once during a full-scale ramp, essential for control systems and metrology where code gaps cause nonlinearity errors.
LTC2364IDE-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):
- 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:
- -40°C ~ 85°C
- Supplier Device Package:
- 16-DFN (4x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2364IDE-16#PBF FAQ
1.How can I place an order for LTC2364IDE-16#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2364IDE-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 LTC2364IDE-16#PBF reliable?
The price and inventory of LTC2364IDE-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 LTC2364IDE-16#PBF is usually 5 days.
3.What payment methods are accepted for LTC2364IDE-16#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2364IDE-16#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2364IDE-16#PBF?
LTC2364IDE-16#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2364IDE-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 LTC2364IDE-16#PBF?
For technical support, including LTC2364IDE-16#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2364IDE-16#PBF requirements.
6.How does Aetrix verify that LTC2364IDE-16#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2364IDE-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 LTC2364IDE-16#PBF meets industry standards.
7.What is the process for return or replacement of LTC2364IDE-16#PBF?
All LTC2364IDE-16#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2364IDE-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 LTC2364IDE-16#PBF part is unused and in its original packaging.
Return procedure for LTC2364IDE-16#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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