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Analog Devices Inc. LTC2392CUK-16#PBF
- Part No.:
- LTC2392CUK-16#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
LTC2392CUK-16#PBF.pdf
- Description:
- IC ADC 16BIT SAR 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,534
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Product details
Overview
LTC2392CUK-16#PBF from Analog Devices (acquired Linear Technology) is a 16-bit, 500ksps successive approximation register (SAR) ADC with ±4.096V fully differential input range, ±2LSB INL (max), and 94dB SNR (typ) at 20kHz - designed for high-dynamic-range data acquisition in medical imaging and industrial process control systems.
For engineers reviewing the LTC2392CUK-16#PBF datasheet, LTC2392CUK-16#PBF pinout, LTC2392CUK-16#PBF application, or LTC2392CUK-16#PBF equivalent, key selection criteria include guaranteed no missing codes at 16 bits, internal 4.096V reference with ±20ppm/°C tempco, dual parallel/serial interface support, and 48-lead 7mm × 7mm QFN package with exposed thermal pad.
Technical Context
The LTC2392CUK-16#PBF implements a charge-redistribution SAR architecture with internal oscillator-based timing, eliminating external clock dependency. It operates from a single 5V analog supply (AVP = 4.75V to 5.25V) and supports 1.8V–5V I/O voltage (OVP), enabling direct interfacing with modern low-voltage logic.
Its fully differential analog front-end accepts ±VREF input (±4.096V), with common-mode range centered at VREF/2 (2.048V), and features integrated reference buffer, REFSENSE for external reference Kelvin sensing, and dedicated CNVST-triggered sample-and-hold with 685ns acquisition time and 1300ns conversion time.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees full 65,536-level quantization with no missing codes across temperature. |
| Sampling Rate | 500ksps - enables real-time capture of signals up to 250kHz Nyquist bandwidth without pipeline latency. |
| SNR | 94dB (typ) at fIN = 20kHz - delivers ≤1.25µVrms noise floor referenced to ±4.096V FSR, critical for precision instrumentation. |
| INL | ±2LSB (max) - ensures monotonicity and <0.003% full-scale linearity error for calibration-sensitive applications. |
| Reference | Internal 4.096V ±0.5% initial accuracy, ±20ppm/°C max tempco - eliminates need for external reference in cost-constrained designs. |
| Power Dissipation | 110mW at 500ksps - achieves 220µW per sample efficiency, with nap/sleep modes reducing current to 250µA/22µA. |
| Digital Interface | Configurable parallel (16-bit D[15:0]) or serial (SDOUT/SDIN/SCLK) - supports FPGA or microcontroller integration with BYTESWAP/OB/2C format control. |
Pinout & Package
Package: 48-lead 7mm × 7mm plastic QFN with exposed thermal pad (Pin 49 = GND), rated for 0°C to 70°C operation (C-grade).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1,5,7,20,35,41,44,48,49) | Ground reference | All GND pins and exposed pad must connect to solid ground plane for noise immunity and thermal dissipation. |
| AVP (Pins 2,40,45,46,47) | Analog power supply | 4.75V–5.25V supply for analog core; requires local 0.1µF + 10µF ceramic bypassing to GND. |
| IN+, IN– (Pins 43,42) | Differential analog inputs | Accept ±4.096V differential signal; input impedance ~85kΩ with 45pF capacitance in sample mode. |
| CNVST (Pin 34) | Conversion start trigger | Falling-edge initiated; starts acquisition and conversion independently of CS/RD timing. |
| BUSY (Pin 29) | Conversion status indicator | Active-high pulse indicates conversion in progress; falling edge signals data-ready for read. |
| REFOUT / REFIN (Pins 37,38) | Reference output/input | Internal 4.096V reference enabled by shorting REFOUT to REFIN; REFSENSE left open. |
| SER/PAR (Pin 4) | Interface mode select | Logic low = parallel output on D[15:0]; logic high = serial output on SDOUT with SCLK synchronization. |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay | Zero-cycle latency in both parallel and serial modes - enables deterministic real-time control loop response. |
| Internal conversion clock | Oscillator-based timing removes external clock source requirement and simplifies PCB layout. |
| Dual reference support | Seamless switch between internal 4.096V reference and external references (e.g., LT1790-4.096) via REFIN/REFSENSE routing. |
| Flexible data formatting | OB/2C pin selects offset binary or two's complement; BYTESWAP reorders MSB/LSB byte order for processor alignment. |
| Low-power operation | Nap mode reduces supply current to 250µA; sleep mode cuts it to 22µA - extends battery life in portable DAQ systems. |
Applications
| Medical Imaging | High-Speed Data Acquisition |
|---|---|
Use Scenario: Digitizing CT/MRI sensor outputs with wide dynamic range and low distortion. IC Role / Device Role / Timing Role: Primary SAR ADC capturing analog detector signals at ≥500ksps with 94dB SNR fidelity. Use Value: Enables detection of low-contrast anatomical features through high-resolution, low-noise digitization of weak signals. |
Use Scenario: Real-time waveform capture in automated test equipment (ATE) and oscilloscope front-ends. IC Role / Device Role / Timing Role: High-throughput sampling engine with deterministic BUSY-driven read timing and no pipeline stalls. Use Value: Guarantees accurate transient capture up to 250kHz without aliasing or code gaps, meeting IEEE 1057 compliance. |
| Digital Signal Processing | Industrial Process Control |
Use Scenario: Front-end digitization for FPGA-based FFT engines in spectrum analyzers and communications receivers. IC Role / Device Role / Timing Role: Low-jitter (7ps RMS aperture) ADC feeding parallel bus directly into FPGA fabric for zero-latency processing. Use Value: Preserves spectral purity for 16k-point FFTs with SFDR ≥104dB, minimizing spurious artifacts in frequency-domain analysis. |
Use Scenario: Closed-loop feedback sensing in PLC analog I/O modules monitoring motor currents or pressure transducers. IC Role / Device Role / Timing Role: Precision measurement node with internal reference stability (±20ppm/°C) over 0°C–70°C ambient. Use Value: Eliminates external reference drift errors, ensuring long-term calibration integrity in unattended factory environments. |
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 |
|---|---|---|---|
| AD7626BCPZ-RL7 | 16-bit, 10Msps SAR ADC with 2.5V internal reference; requires external VREF for ±4.096V range; higher power (45mW @ 10Msps vs 110mW @ 500ksps). | Targeted at ultra-high-speed applications (>1Msps); lacks integrated ±4.096V reference buffer and differential input common-mode control. | Select when throughput >1Msps is mandatory and system can accommodate external reference scaling and higher power. |
| ADS8860IDRCT | 16-bit, 1MSPS SAR ADC with 1.8V–3.6V supply; no internal reference - requires external 4.096V reference; smaller 3mm × 3mm WSON package. | Optimized for space-constrained portable instruments; lacks nap/sleep modes and high-temp grade options (max 85°C). | Select for battery-powered handheld devices where size and low-voltage operation outweigh need for internal reference and extended temperature range. |
Compared with AD7626BCPZ-RL7 and ADS8860IDRCT, the LTC2392CUK-16#PBF uniquely combines integrated ±4.096V differential input support, internal reference with ±20ppm/°C stability, and dual-interface flexibility - making it optimal for cost-sensitive, medium-speed industrial and medical systems requiring minimal BOM count and layout complexity.
Availability
LTC2392CUK-16#PBF is available at Aetrix Electronics and suitable for medical imaging systems, industrial process controllers, and high-speed data acquisition equipment requiring stable component supply and long-term production continuity.
Supply support for LTC2392CUK-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 LTC2392CUK-16#PBF belongs to ADI's legacy Linear Technology precision SAR ADC product line, engineered specifically for applications demanding high SNR, low INL, and seamless integration of reference, timing, and interface functions in a single IC.
FAQ
What is the operating temperature range for the LTC2392CUK-16#PBF?
The LTC2392CUK-16#PBF is specified for 0°C to 70°C ambient operation (C-grade). This is confirmed by the "CUK" suffix in the part number and the Order Information table, which lists LTC2392CUK-16#PBF under the 0°C to 70°C temperature range column with 48-lead QFN packaging.
Does the LTC2392CUK-16#PBF require an external clock source?
No, the LTC2392CUK-16#PBF does not require an external clock source. It contains an internal oscillator that sets the conversion time, as explicitly stated in the datasheet: "An internal oscillator sets the conversion time, easing external timing considerations." This eliminates timing jitter from external sources and simplifies system design.
Can the LTC2392CUK-16#PBF operate with a 3.3V I/O supply?
Yes, the LTC2392CUK-16#PBF supports 1.8V to 5V I/O voltage (OVP), so it can operate with a 3.3V digital interface supply. The datasheet specifies OVP range as 1.71V to 5.25V, and VIH/VIL thresholds scale accordingly - e.g., VIH = 0.8 × OVP = 2.64V min at 3.3V, ensuring compatibility with standard 3.3V CMOS logic.
How is the internal reference configured on the LTC2392CUK-16#PBF?
To enable the internal reference on the LTC2392CUK-16#PBF, tie REFOUT (Pin 37) directly to REFIN (Pin 38). REFSENSE (Pin 39) must be left floating. This configuration connects the internal 4.096V reference to the reference buffer input, and the datasheet confirms this is the only required connection for internal reference operation.
What is the purpose of the BYTESWAP pin on the LTC2392CUK-16#PBF?
The BYTESWAP pin (Pin 8) on the LTC2392CUK-16#PBF controls byte ordering of the 16-bit parallel output. When low, D15–D0 appear on Pins 28–9 (MSB-first); when high, upper and lower bytes are swapped - D7–D0 output on Pins 28–21 and D15–D8 on Pins 16–9 - facilitating alignment with little-endian or big-endian processor data buses without software reordering.
LTC2392CUK-16#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 48-WFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 500k
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- SPI, Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 5V
- Voltage - Supply, Digital:
- 5V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 48-QFN (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2392CUK-16#PBF FAQ
1.How can I place an order for LTC2392CUK-16#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2392CUK-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 LTC2392CUK-16#PBF reliable?
The price and inventory of LTC2392CUK-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 LTC2392CUK-16#PBF is usually 5 days.
3.What payment methods are accepted for LTC2392CUK-16#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2392CUK-16#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2392CUK-16#PBF?
LTC2392CUK-16#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2392CUK-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 LTC2392CUK-16#PBF?
For technical support, including LTC2392CUK-16#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2392CUK-16#PBF requirements.
6.How does Aetrix verify that LTC2392CUK-16#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2392CUK-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 LTC2392CUK-16#PBF meets industry standards.
7.What is the process for return or replacement of LTC2392CUK-16#PBF?
All LTC2392CUK-16#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2392CUK-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 LTC2392CUK-16#PBF part is unused and in its original packaging.
Return procedure for LTC2392CUK-16#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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