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Analog Devices Inc. LTC2320CUKG-12#PBF
- Part No.:
- LTC2320CUKG-12#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 52-WFQFN Exposed Pad
- Datasheet:
-
LTC2320CUKG-12#PBF.pdf
- Description:
- IC ADC 12BIT SAR 52QFN
- Quantity:
- Payment:
- Shipping:
Inventory:368
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Product details
Overview
LTC2320CUKG-12#PBF from Analog Devices is an octal, 12-bit + sign successive approximation register (SAR) ADC with simultaneous sampling across all eight differential input channels, 1.5 Msps per channel throughput, ±0.25 LSB typical INL, and 77 dB SNR at 500 kHz input - deployed in high-speed motor control and optical networking data acquisition systems.
For engineers reviewing the LTC2320CUKG-12#PBF datasheet, LTC2320CUKG-12#PBF pinout, LTC2320CUKG-12#PBF application, or LTC2320CUKG-12#PBF equivalent, this page delivers verified electrical characteristics, SPI-compatible CMOS/LVDS interface behavior, 52-lead QFN package mapping, and validated alternative options for multi-channel precision timing-critical sampling.
Technical Context
The LTC2320CUKG-12#PBF integrates eight independent SAR ADC cores sharing a common CNV control signal to guarantee true simultaneous sampling. Each core features a dedicated internal reference buffer (REFOUT1–4), supporting either 2.048 V or 4.096 V output with ≤20 ppm/°C drift.
It supports dual digital I/O modes: CMOS (OVDD = 1.8 V/2.5 V) and LVDS (OVDD = 2.5 V), with SDR/DDR configuration via the SDR/DDR pin. Aperture jitter is 1 psRMS, and acquisition time is 215 ns, enabling accurate undersampling of wideband signals up to 55 MHz –3 dB bandwidth.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit + sign (13-bit output word), enabling bipolar measurement from –4.096 V to +4.096 V full-scale range. |
| Sampling Rate | 1.5 Msps per channel, with zero-latency conversion and simultaneous capture across all eight channels. |
| SNR / THD | 77 dB SNR and –90 dB THD at fIN = 500 kHz, confirming suitability for medium-bandwidth signal fidelity applications. |
| Input Range | ±4.096 V differential (8 VP-P) with 0 V to VDD common-mode range, allowing direct interfacing with industrial sensor outputs. |
| Reference | Onboard low-drift (≤20 ppm/°C) 4.096 V reference; selectable 2.048 V mode via supply voltage; external reference support via REFBUFEN. |
| Power Dissipation | 20 mW per channel typical at 1.5 Msps (5 V supply), dropping to 26 μW in sleep mode for power-constrained systems. |
| Package | 52-lead (7 mm × 8 mm) QFN with exposed thermal pad - optimized for thermal management in dense PCB layouts. |
Pinout & Package
52-lead QFN (7 mm × 8 mm) with exposed pad (Pin 53), RoHS-compliant and lead-free. Thermal pad must be soldered to solid ground plane for optimal performance and reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN1+ to AIN8+ | Differential analog inputs (8 channels) | Accept ±4.096 V differential signals; each pair referenced to its own buffered REFOUTx; supports rail-to-rail common-mode (0 V to VDD). |
| REFOUT1–4 | Internal reference outputs | Four independent 4.096 V (or 2.048 V) buffered references; individually decoupled with 10 µF X5R capacitors; disable via REFBUFEN. |
| CMOS/LVDS | I/O interface mode select | Ground = CMOS; tie to OVDD = LVDS; float = low-power LVDS - configures driver strength, termination, and voltage levels. |
| SDO1–SDO8 / SDOA±–SDOC± | Serial data outputs | CMOS mode: eight dedicated SDO pins (13-bit MSB-first); LVDS mode: three differential pairs (SDOA±, SDOB±, SDOC±) carrying two channels each. |
| CNV | Convert initiation input | Edge-triggered (OVDD logic); rising edge starts acquisition, falling edge initiates conversion and data readout - critical for timing synchronization. |
| SCK, CLKOUT / CLKOUT± | Serial clock interface | SCK is master clock input; CLKOUT (CMOS) or CLKOUT± (LVDS) provides skew-matched echo for reliable FPGA latch timing. |
Key Features
| Feature | Design Value |
|---|---|
| Simultaneous sampling | Eight independent SAR cores triggered by single CNV edge - eliminates inter-channel phase skew for multiphase current/voltage monitoring. |
| Flexible reference architecture | Four internal 4.096 V buffers (REFOUT1–4) with <20 ppm/°C drift; externally overdrivable from 1.25 V to VDD − 0.4 V when REFBUFEN = GND. |
| Low-latency serial interface | CMOS or LVDS SPI-compatible I/O with DDR/SDR selection; supports FPGA interfacing with matched CLKOUT skew ≤4.5 ns. |
| Wide temperature operation | Guaranteed performance from 0°C to 70°C (C-grade); qualified for 125°C operation per H-grade spec - suitable for industrial enclosures. |
| Ultra-low power states | Nap mode (6.2 mA) and sleep mode (26 μW) enable rapid wake-up while minimizing idle power in battery-backed DAQ systems. |
Applications
| Motor Phase Current Monitoring | Optical Network Signal Sampling |
|---|---|
|
Use Scenario: Real-time sampling of three-phase motor currents and voltages for field-oriented control (FOC) in servo drives. IC Role / Device Role / Timing Role: Simultaneous 8-channel acquisition captures synchronized current/voltage waveforms across multiple phases and sensors without time skew. Use Value: Enables precise torque ripple suppression and dynamic response improvement via sub-100 ns aperture matching between channels. |
Use Scenario: Digitizing analog photodiode outputs and laser bias monitor signals in 100G/400G coherent optical transceivers. IC Role / Device Role / Timing Role: High-SNR (77 dB) 1.5 Msps sampling of low-amplitude, wide-dynamic-range optical monitoring signals. Use Value: Maintains >12-bit ENOB across temperature with onboard 4.096 V reference, reducing calibration overhead in pluggable modules. |
| Remote Industrial Sensor Hub | High-Speed Data Acquisition System |
|
Use Scenario: Aggregating analog outputs from pressure, temperature, and vibration sensors in oil & gas downhole telemetry units. IC Role / Device Role / Timing Role: Octal ADC with 125°C-rated operation and low power sleep mode for intermittent burst-mode sensing. Use Value: Reduces system-level power by 99% during idle periods while retaining fast (<50 ms) wake-up via REFOUT stabilization time. |
Use Scenario: Front-end digitization in portable oscilloscopes and automated test equipment requiring multi-channel coherence. IC Role / Device Role / Timing Role: Simultaneous sampling with 1 psRMS aperture jitter ensures accurate time-domain reconstruction of transient events. Use Value: Eliminates need for external sample-and-hold or complex clock deskew circuitry - simplifies board layout and reduces BOM count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7960BCPZ | Single-channel, 18-bit, 5 Msps; no internal reference; requires external REF; LVDS-only interface. | Higher resolution but lacks simultaneous multi-channel capability - unsuitable for phase-coherent acquisition. | Select only when absolute precision >16 bits is required and channel count is ≤1; not a functional substitute for LTC2320CUKG-12#PBF's octal sync architecture. |
| ADS8688IPWR | Octal, 16-bit, 1 Msps; integrated PGA; SPI-only (CMOS); no LVDS; 2.5 V internal reference only. | Lower speed and no LVDS option limits use in high-noise or long-trace FPGA interfaces; PGA adds gain flexibility but increases latency. | Prefer for cost-sensitive, lower-speed industrial PLCs where programmable gain and smaller footprint outweigh speed and noise requirements. |
Compared with AD7960BCPZ and ADS8688IPWR, the LTC2320CUKG-12#PBF uniquely combines octal simultaneous sampling, dual CMOS/LVDS I/O, on-chip 4.096 V reference with ultra-low drift, and 1.5 Msps/channel throughput - making it the only viable option for compact, high-fidelity, multi-sensor timing-critical systems.
Availability
LTC2320CUKG-12#PBF is available at Aetrix Electronics and suitable for high-speed data acquisition systems, optical networking modules, and multiphase motor control applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for LTC2320CUKG-12#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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The LTC2320 family was designed specifically for high-speed, multi-channel, simultaneous-sampling data acquisition in space- and power-constrained environments - emphasizing timing integrity, reference stability, and flexible digital interfacing.
FAQ
What is the maximum operating temperature for the LTC2320CUKG-12#PBF?
The LTC2320CUKG-12#PBF is rated for operation from 0°C to 70°C (Commercial grade). Its underlying architecture is qualified to 125°C per the LTC2320H variant, and thermal design with the exposed pad enables reliable performance in thermally demanding enclosures when properly mounted to a ground plane.
Does the LTC2320CUKG-12#PBF support external reference inputs?
Yes, the LTC2320CUKG-12#PBF supports external references via REFOUT1–4 pins. When REFBUFEN is grounded, the internal buffers are disabled, allowing an external reference from 1.25 V to VDD − 0.4 V to drive any REFOUTx pin - enabling system-level reference sharing or higher-accuracy external sources.
How many serial data output configurations does the LTC2320CUKG-12#PBF offer?
The LTC2320CUKG-12#PBF offers two distinct serial output architectures: CMOS mode (eight individual SDO1–SDO8 pins, 13-bit MSB-first) and LVDS mode (three differential pairs: SDOA± for CH1/CH2, SDOB± for CH3/CH4, SDOC± for CH5/CH6, plus CH7/CH8 on SDOA± in extended mode).
What is the role of the SDR/DDR pin on the LTC2320CUKG-12#PBF?
The SDR/DDR pin selects serial data rate mode: tied to GND enables Single Data Rate (SDR), where data shifts on SCK falling edges; tied to OVDD enables Double Data Rate (DDR), shifting on both SCK edges. This doubles effective throughput without increasing SCK frequency - critical for FPGA resource optimization.
Can the LTC2320CUKG-12#PBF operate from a 3.3 V supply?
Yes, the LTC2320CUKG-12#PBF operates from either 3.3 V (3.13 V to 3.47 V) or 5 V (4.75 V to 5.25 V) VDD supply. At 3.3 V, it delivers 1.5 Msps/channel with 74 dB SINAD and 20 mW/ch power dissipation - ideal for portable or low-voltage industrial systems.
LTC2320CUKG-12#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 52-WFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 12
- 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-12#PBF FAQ
1.How can I place an order for LTC2320CUKG-12#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2320CUKG-12#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 LTC2320CUKG-12#PBF reliable?
The price and inventory of LTC2320CUKG-12#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2320CUKG-12#PBF is usually 5 days.
3.What payment methods are accepted for LTC2320CUKG-12#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2320CUKG-12#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2320CUKG-12#PBF?
LTC2320CUKG-12#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2320CUKG-12#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 LTC2320CUKG-12#PBF?
For technical support, including LTC2320CUKG-12#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2320CUKG-12#PBF requirements.
6.How does Aetrix verify that LTC2320CUKG-12#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2320CUKG-12#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 LTC2320CUKG-12#PBF meets industry standards.
7.What is the process for return or replacement of LTC2320CUKG-12#PBF?
All LTC2320CUKG-12#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2320CUKG-12#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 LTC2320CUKG-12#PBF part is unused and in its original packaging.
Return procedure for LTC2320CUKG-12#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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