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Analog Devices Inc. LTC2393CUK-16#PBF
- Part No.:
- LTC2393CUK-16#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
LTC2393CUK-16#PBF.pdf
- Description:
- IC ADC 16BIT SAR 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,374
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Product details
Overview
LTC2393CUK-16#PBF from Analog Devices (formerly Linear Technology) is a 16-bit, 1 Msps successive approximation register (SAR) analog-to-digital converter with ±4.096 V fully differential input range, ±2 LSB INL (max), and 94.2 dB SNR (typ) at 20 kHz - designed for high-dynamic-range data acquisition in medical imaging and industrial process control systems.
For engineers reviewing the LTC2393CUK-16#PBF datasheet, LTC2393CUK-16#PBF pinout, LTC2393CUK-16#PBF application, or LTC2393CUK-16#PBF equivalent, key selection criteria include guaranteed no-missing-codes operation, internal 4.096 V reference with ±20 ppm/°C tempco, dual parallel/serial interface support, and QFN-48 package compatibility with 7 mm × 7 mm PCB footprints.
Technical Context
The LTC2393CUK-16#PBF implements a charge-redistribution SAR architecture with internal oscillator-based timing, eliminating external clock dependency. Its differential input stage supports ±VREF swing and features 50 Ω input switch resistance and 45 pF sampling capacitance during acquisition.
Conversion begins on CNVST falling edge, completes in 600 ns (tCONV), and delivers data with zero cycle latency in both serial (SDOUT/SCLK) and parallel (D0–D15) modes. Internal reference buffer drives REFIN/REFOUT with 2.6 kΩ output impedance and 85 kΩ input impedance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees full 65,536-code dynamic range without missing codes across temperature. |
| Sampling Rate | 1 Msps - enables real-time capture of signals up to 50 MHz (–3 dB input bandwidth) with 60 ns transient response. |
| SNR | 94.2 dB (typ) at fIN = 20 kHz - corresponds to ≤ 0.62 LSBRMS noise floor for precision measurement applications. |
| INL | ±2 LSB (max) - ensures monotonicity and <0.003% full-scale linearity error over operating temperature. |
| Reference | Internal 4.096 V ±0.5% initial accuracy, ±20 ppm/°C max tempco - eliminates need for external reference in most industrial-grade designs. |
| Power | 140 mW at 1 Msps - enables high-speed conversion while maintaining thermal manageability in dense layouts. |
| Interface | Configurable parallel (16-bit D[15:0]) or serial (SDOUT/SCLK/SDIN) - supports flexible host processor integration with BYTESWAP and OB/2C format control. |
Pinout & Package
Package: 48-lead 7 mm × 7 mm plastic QFN (exposed pad = GND). All GND pins (1, 5, 7, 20, 35, 41, 44, 48, and exposed pad 49) must connect to solid ground plane; AVP/DVP/OVP require local 0.1 μF + 10 μF bypassing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (1,5,7,20,35,41,44,48,49) | Ground reference | Multiple low-inductance return paths; exposed pad (49) is mandatory thermal and electrical connection to PCB ground plane. |
| AVP (2,40,45,46,47) | Analog power supply | 4.75–5.25 V analog rail; powers internal reference, CDAC, and comparator - requires dedicated low-noise bypassing. |
| DVP (3,19) | Digital core power | 4.75–5.25 V digital rail for logic and SAR control circuitry; separate from OVP to isolate I/O noise. |
| OVP (18) | I/O interface power | 1.8–5 V programmable voltage for digital I/O levels - enables direct interfacing with 1.8 V, 3.3 V, or 5 V controllers. |
| IN+, IN– (43,42) | Differential analog inputs | Accept ±4.096 V differential swing; input impedance modeled as 50 Ω + 45 pF during acquisition phase. |
| CNVST (34) | Conversion start trigger | Falling-edge initiated; independent of CS/RD - allows precise timing control without bus arbitration delays. |
| BUSY (29) | Conversion status indicator | Active-high pulse indicates conversion in progress; falling edge serves as hardware data-ready signal. |
| REFOUT / REFIN (37,38) | Reference output/input | Internal 4.096 V reference node; tie together for internal use; connect REFIN to external ref and REFOUT to GND for external mode. |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay | Zero-cycle latency ensures deterministic timing - critical for closed-loop control and real-time feedback systems. |
| Configurable data format | OB/2C pin selects offset binary or two's complement output - simplifies sign handling in DSP and FPGA implementations. |
| Dual interface mode | SER/PAR pin switches between 16-bit parallel bus and 3-wire serial (SDOUT/SCLK/SDIN) - reduces pin count without sacrificing speed. |
| Temperature robustness | Specified for 0°C to 70°C operation (C-grade); internal reference drift limited to ±20 ppm/°C - maintains accuracy in uncontrolled environments. |
| Low-power sleep modes | Nap mode draws 250 μA; sleep mode draws 35 μA - extends uptime in battery-powered DAQ and portable instrumentation. |
Applications
| Medical Imaging | High-Speed Data Acquisition |
|---|---|
Use Scenario: Digitizing CT/MRI sensor outputs requiring wide dynamic range and low distortion. IC Role / Device Role / Timing Role: Primary ADC capturing differential analog signals from detector arrays at 1 Msps with synchronized BUSY-driven readout. Use Value: 94.2 dB SNR and ±2 LSB INL preserve image fidelity and reduce post-processing correction overhead. |
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 600 ns conversion time and zero-latency parallel output. Use Value: 1 Msps rate and 50 MHz input bandwidth enable accurate reconstruction of fast transients and harmonic content. |
| 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: Precision ADC feeding 16-bit data streams directly into programmable logic via parallel or serial interface. Use Value: Configurable BYTESWAP and OB/2C support seamless alignment with DSP memory maps and arithmetic conventions. |
Use Scenario: Monitoring high-voltage motor currents and temperature sensors in PLCs and drive inverters. IC Role / Device Role / Timing Role: Isolated analog input conditioner with ±4.096 V differential range and internal reference for stable calibration. Use Value: Guaranteed no-missing-codes and 0.5% reference accuracy ensure reliable fault detection and closed-loop regulation. |
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 |
|---|---|---|---|
| AD7606BSTZ | 8-channel simultaneous-sampling, 16-bit, 200 kSPS; external reference required; SPI-only interface. | Better suited for multi-channel synchronized acquisition; lower throughput limits use in single-channel >500 kSPS systems. | Select when channel count >1 and simultaneous sampling is mandatory; avoid when 1 Msps single-channel performance is required. |
| ADS8860IDRCT | 16-bit, 1 Msps, SPI-only, 1.8 V supply; no internal reference; 92.5 dB SNR (typ); 3 mm × 3 mm WSON-10 package. | Ultra-small footprint and low-voltage operation ideal for portable devices; lacks parallel interface and internal reference. | Select for space-constrained, battery-powered designs where external reference and SPI interface are acceptable trade-offs. |
Compared with AD7606BSTZ and ADS8860IDRCT, the LTC2393CUK-16#PBF uniquely combines single-channel 1 Msps speed, integrated 4.096 V reference, dual parallel/serial interface, and QFN-48 thermal performance - making it optimal for high-fidelity, low-latency industrial and medical DAQ where board area and external component count must be minimized.
Availability
LTC2393CUK-16#PBF is available at Aetrix Electronics and suitable for medical imaging systems, high-speed data acquisition modules, and industrial process controllers requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for LTC2393CUK-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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing ICs for precision measurement and control.
The LTC2393CUK-16#PBF belongs to Linear's high-speed precision SAR ADC family, engineered for applications demanding maximum dynamic range, low latency, and minimal external component count in harsh industrial and medical environments.
FAQ
What is the operating temperature range for the LTC2393CUK-16#PBF?
The LTC2393CUK-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 ordering information table listing LTC2393CUK-16#PBF with 0°C to 70°C range. The device achieves full performance including ±2 LSB INL and 94.2 dB SNR within this range.
Does the LTC2393CUK-16#PBF require an external reference?
No, the LTC2393CUK-16#PBF includes a precision internal 4.096 V reference with ±0.5% initial accuracy and ±20 ppm/°C max temperature coefficient. To use it, tie REFOUT and REFIN together and leave REFSENSE floating. An external reference is optional for higher accuracy requirements.
How does the LTC2393CUK-16#PBF handle power-down states?
The LTC2393CUK-16#PBF supports two low-power states: Nap mode (250 μA typical) and Sleep mode (35 μA typical), controlled via the PD pin. Before entering power-down, valid conversion data must be read, as subsequent conversions are ignored until PD returns low and the device reinitializes.
What package type is used for the LTC2393CUK-16#PBF?
The LTC2393CUK-16#PBF uses a 48-lead 7 mm × 7 mm plastic QFN package with exposed pad (Pin 49 = GND). This is explicitly stated in the "ORDER INFORMATION" section and confirmed by the "UK" suffix in the part number and the top-view QFN pin diagram labeled "UK PACKAGE".
Can the LTC2393CUK-16#PBF interface with 1.8 V microcontrollers?
Yes - the LTC2393CUK-16#PBF supports 1.8 V to 5 V I/O voltage levels via the OVP pin. When OVP is supplied at 1.8 V, all digital outputs (D0–D15, SDOUT, BUSY, etc.) operate at 1.8 V logic levels, and digital inputs (CS, RD, CNVST, etc.) accept 1.8 V–compatible thresholds, enabling direct connection to 1.8 V FPGAs or MCUs.
LTC2393CUK-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):
- 1M
- 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:
- -
LTC2393CUK-16#PBF FAQ
1.How can I place an order for LTC2393CUK-16#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2393CUK-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 LTC2393CUK-16#PBF reliable?
The price and inventory of LTC2393CUK-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 LTC2393CUK-16#PBF is usually 5 days.
3.What payment methods are accepted for LTC2393CUK-16#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2393CUK-16#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2393CUK-16#PBF?
LTC2393CUK-16#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2393CUK-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 LTC2393CUK-16#PBF?
For technical support, including LTC2393CUK-16#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2393CUK-16#PBF requirements.
6.How does Aetrix verify that LTC2393CUK-16#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2393CUK-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 LTC2393CUK-16#PBF meets industry standards.
7.What is the process for return or replacement of LTC2393CUK-16#PBF?
All LTC2393CUK-16#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2393CUK-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 LTC2393CUK-16#PBF part is unused and in its original packaging.
Return procedure for LTC2393CUK-16#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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