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Analog Devices Inc. LTC2392IUK-16#PBF
- Part No.:
- LTC2392IUK-16#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
LTC2392IUK-16#PBF.pdf
- Description:
- IC ADC 16BIT SAR 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,118
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Product details
Overview
LTC2392IUK-16#PBF from Analog Devices (acquired Linear Technology) is a 16-bit, 500ksps successive approximation register (SAR) analog-to-digital converter with ±4.096V fully differential input range, ±2LSB INL (max), 94dB SNR (typ), and integrated 4.096V reference. It operates from a single 5V supply, supports 1.8V–5V I/O, and delivers no missing codes at 16 bits-ideal for high-speed medical imaging and precision industrial data acquisition.
For engineers reviewing the LTC2392IUK-16#PBF datasheet, LTC2392IUK-16#PBF pinout, LTC2392IUK-16#PBF application, or LTC2392IUK-16#PBF equivalent, key selection criteria include guaranteed operation from –40°C to +85°C, zero-cycle latency in both parallel and serial modes, internal conversion clock, and dual power-down (nap/sleep) states enabling low-power system design.
Technical Context
The LTC2392IUK-16#PBF implements a charge-redistribution SAR architecture with a differential comparator and 16-bit CDAC, sampling inputs during acquisition (tACQ = 685 ns) and executing binary-search conversion (tCONV = 1300 ns). Its internal 4.096V reference features ±20ppm/°C max tempco and 0.5% initial accuracy, buffered for both internal and external reference configurations.
It supports two digital interface modes: parallel (16-bit D[15:0] bus with CS/RD/BUSY control) and serial (SDIN/SDOUT/SCLK with MSB-first timing), selectable via SER/PAR pin. OB/2C and BYTESWAP pins configure output format (offset binary/two's complement) and byte ordering-enabling direct integration into FPGA or microcontroller systems without external formatting logic.
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 | 500 ksps - enables real-time capture of signals up to 250 kHz Nyquist bandwidth with deterministic timing. |
| SNR | 94 dB (typ, fIN = 20 kHz) - supports >15.6 effective bits (ENOB) for high-fidelity signal reconstruction. |
| INL | ±2 LSB (max) - ensures monotonicity and linearity critical for closed-loop control and calibration-sensitive instrumentation. |
| Differential Input Range | ±4.096 V - matches standard reference voltage, simplifying anti-aliasing filter design and maximizing dynamic range. |
| Power Dissipation | 110 mW at 500 ksps - enables thermally constrained PCB layouts in portable or densely packed systems. |
| Reference Accuracy | ±0.5% initial, ±20 ppm/°C max - eliminates need for external trimming in mid-accuracy applications like process monitoring. |
Pinout & Package
48-lead 7 mm × 7 mm plastic QFN package with exposed thermal pad (Pin 49 = GND); RoHS-compliant lead-free finish; operating temperature range: –40°C to +85°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1,5,7,20,35,41,44,48,49) | Ground reference | All analog/digital grounds tied to solid plane; exposed pad must be soldered for thermal and electrical integrity. |
| AVP (Pins 2,40,45,46,47) | Analog power supply | 4.75–5.25 V analog rail; requires local 0.1 µF + 10 µF ceramic bypassing to minimize noise coupling into ADC core. |
| IN+, IN– (Pins 43,42) | Differential analog inputs | Accept ±VREF (±4.096 V) differential swing; input impedance ~85 kΩ; require matched drive for optimal CMRR. |
| REFOUT / REFIN (Pins 37,38) | Internal reference I/O | REFOUT = 4.096 V output; tie REFOUT to REFIN for internal reference use; for external reference, connect REFIN to ref source and REFOUT to GND. |
| SER/PAR (Pin 4) | Interface mode select | Logic low = parallel mode (16-bit D[15:0]); logic high = serial mode (SDIN/SDOUT/SCLK); non-active outputs go Hi-Z. |
| BUSY (Pin 29) | Conversion status indicator | Active-high pulse indicates conversion in progress; falling edge signals valid data ready for read-enables synchronous data capture. |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay | Zero-cycle latency ensures immediate data availability after BUSY falls-critical for real-time feedback loops. |
| Internal conversion clock | On-chip oscillator eliminates external clock source and associated jitter, simplifying layout and reducing BOM count. |
| Dual power-down modes | Nap mode (250 µA) and sleep mode (22 µA) enable adaptive power management between acquisition bursts. |
| Flexible digital interface | Parallel (16-bit bus) and serial (3-wire SPI-compatible) options support both high-throughput and pin-constrained designs. |
| Configurable output format | OB/2C pin selects offset binary or two's complement; BYTESWAP pin swaps upper/lower bytes-no firmware reformatting needed. |
Applications
| Medical Imaging Signal Chain | High-Speed Industrial DAQ |
|---|---|
Use Scenario: Digitizing ultrasound echo signals or MRI gradient waveforms requiring wide dynamic range and low distortion. IC Role / Device Role / Timing Role: Primary SAR ADC capturing 500k samples/sec with 94dB SNR and <1ns aperture jitter to preserve signal fidelity. Use Value: Enables 16-bit resolution at full speed without decimation, supporting real-time beamforming and spectral analysis. |
Use Scenario: Monitoring multi-channel vibration, pressure, and temperature in predictive maintenance systems. IC Role / Device Role / Timing Role: High-accuracy front-end ADC interfacing with FPGA-based preprocessing; uses BUSY-driven read timing for deterministic latency. Use Value: ±2LSB INL and no missing codes ensure reliable fault detection across extended temperature ranges (–40°C to +85°C). |
| Automated Test Equipment (ATE) | DSP-Based Instrumentation |
Use Scenario: Precision DC/AC parametric testing of semiconductor devices under bias conditions. IC Role / Device Role / Timing Role: Reference-grade ADC with internal 4.096V reference and ±0.5% accuracy-eliminates external reference calibration. Use Value: Reduces test head complexity and improves measurement repeatability over temperature without recalibration. |
Use Scenario: Real-time spectrum analysis in portable oscilloscopes or signal analyzers using 16k-point FFTs. IC Role / Device Role / Timing Role: Low-jitter, low-latency ADC feeding FPGA FFT engine; 500ksps rate supports 250kHz real-time bandwidth. Use Value: 104dB SFDR and –103dB THD prevent harmonic masking in multi-tone measurements. |
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 |
|---|---|---|---|
| AD7606C-16 | 8-channel simultaneous-sampling, 1 MSPS, ±10V input range, external reference only; higher power (140 mW) | Better suited for multi-channel synchronized acquisition (e.g., motor phase current sensing), not single-channel high-SNR optimization | Select when channel count > 1 and simultaneous sampling is required; avoid if single-channel SNR >94dB and internal reference are mandatory. |
| ADS8860 | 16-bit, 1 MSPS, pseudo-differential input, no internal reference, 1.8V supply only, 65 mW | Optimized for ultra-low-power battery-operated systems; lacks differential input and internal reference-requires external driver and ref. | Select for portable instrumentation where power <70 mW is critical and external signal conditioning is acceptable. |
Compared with AD7606C-16 and ADS8860, the LTC2392IUK-16#PBF uniquely combines single-channel 94dB SNR, ±4.096V differential input, integrated reference, and zero-latency parallel/serial interfaces-making it optimal for space-constrained, high-fidelity data acquisition where simplicity and signal integrity are prioritized over channel count or sub-100mW power.
Availability
LTC2392IUK-16#PBF is available at Aetrix Electronics and suitable for medical imaging systems, industrial process control, automated test equipment, and high-speed instrumentation requiring stable component supply across extended temperature ranges.
Supply support for LTC2392IUK-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 LTC2392IUK-16#PBF belongs to ADI's legacy Linear Technology precision SAR ADC family, engineered for applications demanding high speed, low noise, and guaranteed 16-bit performance without missing codes-targeting test & measurement, medical, and industrial control systems.
FAQ
What is the operating temperature range of the LTC2392IUK-16#PBF?
The LTC2392IUK-16#PBF is rated for –40°C to +85°C ambient operation, confirmed by its "I" grade designation and validated across all AC/DC specifications in the datasheet. This makes LTC2392IUK-16#PBF suitable for industrial environments where thermal stability is critical, unlike the "C" grade (0°C to 70°C) or "H" grade (–40°C to 125°C) variants.
Does the LTC2392IUK-16#PBF require an external clock source?
No, the LTC2392IUK-16#PBF includes an internal oscillator that sets conversion timing-eliminating need for external clock generation. This reduces jitter, simplifies PCB layout, and avoids synchronization issues. External clocks are neither required nor supported; timing is fully self-contained within LTC2392IUK-16#PBF.
Can the LTC2392IUK-16#PBF operate with a 3.3V I/O supply?
Yes, the LTC2392IUK-16#PBF supports OVP (digital I/O supply) from 1.8V to 5V, so 3.3V is fully compliant. Pins CS, RD, BUSY, D[15:0], SDIN, SDOUT, and SCLK interface directly to 3.3V logic without level shifters-verified in the Digital Inputs and Outputs section of the datasheet for LTC2392IUK-16#PBF.
How does the internal reference of the LTC2392IUK-16#PBF compare to external references?
The LTC2392IUK-16#PBF internal reference provides 4.096V ±0.5% initial accuracy and ±20ppm/°C max tempco-sufficient for most precision applications. For tighter specs (e.g., ±0.05%, ±10ppm/°C), an external reference like LT1790-4.096 can be used by connecting REFIN to the reference output and REFOUT to GND-both configurations are fully supported by LTC2392IUK-16#PBF.
What is the significance of "no missing codes" in the LTC2392IUK-16#PBF specification?
"No missing codes" means the LTC2392IUK-16#PBF guarantees monotonic transfer function across its full 16-bit range-every possible 65,536 output code appears for some input voltage. This is essential for control systems and closed-loop applications where code gaps could cause instability or erroneous decisions; LTC2392IUK-16#PBF achieves this across –40°C to +85°C.
LTC2392IUK-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:
- -40°C ~ 85°C
- Supplier Device Package:
- 48-QFN (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2392IUK-16#PBF FAQ
1.How can I place an order for LTC2392IUK-16#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2392IUK-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 LTC2392IUK-16#PBF reliable?
The price and inventory of LTC2392IUK-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 LTC2392IUK-16#PBF is usually 5 days.
3.What payment methods are accepted for LTC2392IUK-16#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2392IUK-16#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2392IUK-16#PBF?
LTC2392IUK-16#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2392IUK-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 LTC2392IUK-16#PBF?
For technical support, including LTC2392IUK-16#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2392IUK-16#PBF requirements.
6.How does Aetrix verify that LTC2392IUK-16#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2392IUK-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 LTC2392IUK-16#PBF meets industry standards.
7.What is the process for return or replacement of LTC2392IUK-16#PBF?
All LTC2392IUK-16#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2392IUK-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 LTC2392IUK-16#PBF part is unused and in its original packaging.
Return procedure for LTC2392IUK-16#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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