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Analog Devices Inc. LTC2320CUKG-14#TRPBF
- Part No.:
- LTC2320CUKG-14#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 52-WFQFN Exposed Pad
- Datasheet:
-
LTC2320CUKG-14#TRPBF.pdf
- Description:
- IC ADC 14BIT SAR 52QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,598
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Product details
Overview
LTC2320CUKG-14#TRPBF from Analog Devices (formerly Linear Technology) is an octal, 14-bit + sign successive approximation register (SAR) analog-to-digital converter with simultaneous sampling across all eight channels, 1.5 Msps per channel throughput, ±1 LSB typical INL, 81 dB SNR at 500 kHz, and integrated 4.096 V temperature-compensated reference. It serves as a high-precision data acquisition front-end in multichannel instrumentation requiring wide dynamic range and high common-mode rejection.
For engineers reviewing the LTC2320CUKG-14#TRPBF datasheet, LTC2320CUKG-14#TRPBF pinout, LTC2320CUKG-14#TRPBF application, or LTC2320CUKG-14#TRPBF equivalent, key selection criteria include guaranteed 14-bit no-missing-codes operation, differential input range up to 8 VP-P, CMOS/LVDS SPI-compatible serial interface, 52-lead QFN package, and support for 0°C to 70°C industrial temperature range.
Technical Context
The LTC2320CUKG-14#TRPBF implements eight independent SAR ADC cores with synchronized sample-and-hold circuits, enabling true simultaneous sampling across all channels without inter-channel skew. Each core features differential inputs with ±REFOUTx full-scale range and supports internal reference buffering or external reference override via REFBUFEN control.
Its digital interface operates in four configurable modes-CMOS SDR, CMOS DDR, LVDS SDR, and LVDS DDR-with dedicated SDOx pins (CMOS) or differential SDOA–/SDOA+, SDOB–/SDOB+, etc. (LVDS), and includes CLKOUT for skew-matched data capture. Power management includes nap mode (5.3 mA) and sleep mode (20 µA) for dynamic power scaling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit + sign - delivers 32,768 quantization levels with bipolar zero-crossing capability for true AC-coupled signal digitization. |
| Sampling Rate | 1.5 Msps per channel - enables real-time capture of signals up to ~750 kHz Nyquist bandwidth across all eight channels simultaneously. |
| INL | ±1 LSB typical - ensures monotonicity and <0.006% full-scale linearity error, critical for precision measurement calibration. |
| SNR | 81 dB at fIN = 500 kHz - corresponds to ~13.2 effective bits (ENOB), supporting high-fidelity spectral analysis in FFT-based systems. |
| Reference | Internal 4.096 V ±20 ppm/°C - eliminates need for external reference IC while maintaining <±3 LSB full-scale drift over 0°C to 70°C. |
| Supply | Single 5 V (4.75–5.25 V) VDD + 1.8–2.5 V OVDD - simplifies power architecture by decoupling analog and I/O domains. |
| Power Dissipation | 162 mW at 5 V / 1.5 Msps - achieves 20 mW per channel efficiency, enabling dense multichannel DAQ without thermal derating. |
Pinout & Package
Package: 52-lead (7 mm × 8 mm) plastic QFN with exposed pad (Pin 53 = GND). RoHS-compliant, lead-free finish, tape-and-reel packaging (#TRPBF).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN1+ / AIN1– to AIN8+ / AIN8– | Differential analog inputs (8 pairs) | Each pair accepts ±REFOUTx full-scale differential voltage; supports true bipolar/unipolar/arbitrary input configurations without reconfiguration. |
| REFOUT1–REFOUT4 | Independent reference buffer outputs | Four 4.096 V buffered references, each assigned to two ADC channels; individually disableable via REFBUFEN for external reference routing. |
| SDO1–SDO8 (CMOS mode) or SDOA±/SDOB±/SDOC±/SDOD± (LVDS mode) | Serial data outputs | Eight independent CMOS outputs or four LVDS differential pairs - enables parallel readout or time-interleaved streaming without multiplexing latency. |
| CLKOUT / CLKOUT± | Skew-matched output clock | Provides deterministic timing relationship to SCK for FPGA-based capture; essential for jitter-sensitive high-speed data alignment. |
| CMOS/LVDS & SDR/DDR | Interface configuration pins | Hardware-selectable I/O standard (CMOS/LVDS) and data rate mode (single/double) - eliminates firmware-dependent interface initialization. |
| CNV | Convert initiation input | Rising edge triggers simultaneous sampling; low-jitter requirement ensures sub-500 ps aperture matching across all eight channels. |
Key Features
| Feature | Design Value |
|---|---|
| Octal simultaneous sampling | Eliminates phase skew between channels - enables accurate multiphase current/voltage vector analysis in motor control and power quality monitoring. |
| 8 VP-P differential input range with wide common-mode range (0 V to VDD) | Supports direct connection to ±4 V sensor outputs or transformer-coupled signals without level-shifting circuitry. |
| Onboard 4.096 V reference with 20 ppm/°C max drift | Reduces BOM count and layout area vs. discrete reference ICs while meeting Class I metering accuracy requirements over temperature. |
| CMOS and LVDS SPI-compatible interface with SDR/DDR options | Enables interoperability with legacy microcontrollers (CMOS) and high-speed FPGAs (LVDS), with DDR doubling effective data rate without increasing clock frequency. |
| Nap and sleep power modes | Reduces idle power to 5.3 mA (nap) or 20 µA (sleep) - extends operational uptime in battery-powered portable test equipment. |
Applications
| High-Speed Data Acquisition Systems | Optical Networking Monitoring |
|---|---|
|
Use Scenario: Real-time capture of multi-sensor vibration, temperature, and strain data in industrial predictive maintenance edge nodes. IC Role / Device Role / Timing Role: Simultaneous sampling front-end digitizing eight analog sensor outputs with sub-ns channel-to-channel skew for coherent time-domain analysis. Use Value: Enables accurate FFT-based fault signature detection without interpolation or post-processing correction for inter-channel timing mismatch. |
Use Scenario: Monitoring optical transceiver bias currents, TEC voltages, and photodiode outputs in 100G/400G coherent modules. IC Role / Device Role / Timing Role: High-SNR, low-latency digitizer for closed-loop feedback control of laser diode drivers and thermal management circuits. Use Value: 81 dB SNR and ±1 LSB INL ensure precise calibration of optical power margins within ±0.1 dB tolerance across temperature. |
| Multiphase Motor Control | Communications Baseband Processing |
|
Use Scenario: Sampling three-phase stator currents and rotor position encoder signals in servo drives with field-oriented control (FOC). IC Role / Device Role / Timing Role: Simultaneous acquisition of Ia, Ib, Ic, and auxiliary analog feedback signals for synchronous Clarke/Park transforms. Use Value: Guaranteed 14-bit no-missing-codes operation prevents torque ripple due to quantization non-monotonicity during low-speed commutation. |
Use Scenario: Digitizing IF/RF baseband signals in software-defined radio (SDR) receivers and MIMO antenna array front-ends. IC Role / Device Role / Timing Role: Multichannel ADC capturing quadrature I/Q paths and auxiliary calibration tones with matched gain/phase response. Use Value: 81 dB SNR and –90 dB THD at 500 kHz enable >12-bit ENOB for wideband LTE/5G signal analysis without harmonic distortion masking adjacent channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal, high-speed SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7606C-16 | 16-bit resolution, 1 MSPS per channel, internal 4.096 V reference, but only six simultaneous channels and no LVDS interface. | Better resolution for DC-precision applications; lacks eighth channel and high-speed LVDS for FPGA interfacing. | Select when ENOB >13.5 bits is required and channel count ≤6 suffices; avoid when simultaneous 8-channel LVDS streaming is mandatory. |
| ADS8688 | 8-channel, 16-bit, 500 kSPS, single-supply 5 V, integrated PGA and reference, but no simultaneous sampling - sequential conversion with 250 ns inter-channel delay. | Integrated programmable gain supports variable sensor ranges; unsuitable for phase-coherent multichannel acquisition. | Select for mixed-signal industrial I/O modules needing on-chip signal conditioning; avoid for time-aligned waveform capture. |
Compared with AD7606C-16 and ADS8688, the LTC2320CUKG-14#TRPBF uniquely delivers 1.5 Msps simultaneous sampling across eight channels with LVDS support and 81 dB SNR - making it optimal for FPGA-based real-time spectrum analyzers and multiphase power electronics where inter-channel timing integrity is non-negotiable.
Availability
LTC2320CUKG-14#TRPBF is available at Aetrix Electronics and suitable for high-speed data acquisition systems, optical networking monitoring, multiphase motor control, and communications baseband processing requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for LTC2320CUKG-14#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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.
The LTC2320 family was designed specifically for demanding multichannel data acquisition applications requiring simultaneous sampling, high SNR, and flexible digital interfacing - targeting test & measurement, energy metering, and advanced motor control systems.
FAQ
What is the operating temperature range for the LTC2320CUKG-14#TRPBF?
The LTC2320CUKG-14#TRPBF is rated for 0°C to 70°C ambient operation (Commercial grade). This is confirmed by the "C" suffix in the part number and the order information table specifying "0°C to 70°C" for LTC2320CUKG-14 variants. The device maintains full performance specifications-including ±1 LSB INL and 81 dB SNR-across this entire range without derating.
Does the LTC2320CUKG-14#TRPBF support external reference inputs?
Yes, the LTC2320CUKG-14#TRPBF supports external references via REFOUT1–REFOUT4 pins. When REFBUFEN is grounded, the internal reference buffers are disabled, allowing external voltages from 1.25 V to 5 V to drive these pins. This enables system-level reference sharing or higher-precision external references while retaining the device's simultaneous sampling architecture.
How many pins does the LTC2320CUKG-14#TRPBF use for analog inputs?
The LTC2320CUKG-14#TRPBF uses 16 pins for analog inputs: AIN1+ and AIN1– through AIN8+ and AIN8– (Pins 19–20, 16–17, 13–14, 10–11, 4–5, 1–2, 50–51, 47–48). All eight differential pairs are brought out individually, enabling independent signal routing and minimizing crosstalk in high-density PCB layouts.
What digital interface standards does the LTC2320CUKG-14#TRPBF support?
The LTC2320CUKG-14#TRPBF supports both CMOS and LVDS SPI-compatible serial interfaces, selectable via the CMOS/LVDS pin. Each mode further supports Single Data Rate (SDR) or Double Data Rate (DDR) operation via the SDR/DDR pin. This yields four distinct interface configurations optimized for microcontroller (CMOS SDR), FPGA (LVDS DDR), or low-power embedded (CMOS DDR) use cases.
Is the LTC2320CUKG-14#TRPBF pin-compatible with other members of the LTC2320 family?
Yes, all LTC2320 variants-including LTC2320IUKG-14 and LTC2320HUKG-14-share identical 52-lead QFN packaging and pinout. The only differences are temperature grade (C/I/H) and associated electrical specifications over temperature. This allows drop-in replacement for qualification upgrades or environmental hardening without PCB redesign.
LTC2320CUKG-14#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 52-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 1.5M
- Number of Inputs:
- 8
- Input Type:
- Differential
- Data Interface:
- LVDS - Parallel, SPI
- Configuration:
- S/H-MUX-ADC
- Ratio - S/H:ADC:
- 2:1
- Number of A/D Converters:
- 4
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 3.13V ~ 3.47V, 5V
- Voltage - Supply, Digital:
- 3.13V ~ 3.47V, 5V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 52-QFN (7x8)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2320CUKG-14#TRPBF FAQ
1.How can I place an order for LTC2320CUKG-14#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2320CUKG-14#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 LTC2320CUKG-14#TRPBF reliable?
The price and inventory of LTC2320CUKG-14#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2320CUKG-14#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2320CUKG-14#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2320CUKG-14#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2320CUKG-14#TRPBF?
LTC2320CUKG-14#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2320CUKG-14#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 LTC2320CUKG-14#TRPBF?
For technical support, including LTC2320CUKG-14#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2320CUKG-14#TRPBF requirements.
6.How does Aetrix verify that LTC2320CUKG-14#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2320CUKG-14#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 LTC2320CUKG-14#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2320CUKG-14#TRPBF?
All LTC2320CUKG-14#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2320CUKG-14#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 LTC2320CUKG-14#TRPBF part is unused and in its original packaging.
Return procedure for LTC2320CUKG-14#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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