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Analog Devices Inc. LTC2320HUKG-14#PBF
- Part No.:
- LTC2320HUKG-14#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 52-WFQFN Exposed Pad
- Datasheet:
-
LTC2320HUKG-14#PBF.pdf
- Description:
- IC ADC 14BIT SAR 52QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,553
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Product details
Overview
LTC2320HUKG-14#PBF from Analog Devices (formerly Linear Technology) is a high-speed, octal, 14-bit + sign successive approximation register (SAR) analog-to-digital converter with simultaneous sampling, differential inputs, and integrated 4.096V/2.048V temperature-compensated reference. It delivers 1.5 Msps per channel, ±1 LSB INL typical, 81 dB SNR at 500 kHz, and operates across –40°C to 125°C for industrial and automotive data acquisition systems.
For engineers reviewing the LTC2320HUKG-14#PBF datasheet, LTC2320HUKG-14#PBF pinout, LTC2320HUKG-14#PBF application, or LTC2320HUKG-14#PBF equivalent, key selection criteria include guaranteed 14-bit no-missing-codes performance, wide common-mode input range (0 V to VDD), CMOS/LVDS serial interface flexibility, low 20 mW/channel power dissipation, and extended temperature operation up to 125°C.
Technical Context
The LTC2320HUKG-14#PBF implements eight independent SAR ADC cores with synchronized sample-and-hold circuits, enabling true simultaneous sampling across all channels. Its differential architecture supports 8 VP-P input range with 102 dB CMRR at 500 kHz and aperture jitter of 1 psRMS.
It integrates four independently buffered reference outputs (REFOUT1–4), each configurable as 4.096 V or 2.048 V with ≤20 ppm/°C drift, and supports dual I/O modes: CMOS (1.8 V–2.5 V OVDD) or LVDS (2.5 V OVDD), with SDR/DDR serial data formatting and skew-matched CLKOUT for FPGA interfacing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit + sign - delivers 32,768 distinct codes with bipolar zero-scale alignment for precision DC and AC signal capture. |
| Sampling Rate | 1.5 Msps per channel - enables real-time capture of signals up to ~55 MHz bandwidth with <3 ns transient response. |
| INL (typ) | ±1 LSB - ensures monotonicity and accurate end-point linearity without calibration in closed-loop control applications. |
| SNR (typ) | 81 dB at fIN = 500 kHz - supports >13.2 ENOB for high-fidelity spectral analysis in communications and instrumentation. |
| Reference | Internal 4.096 V or 2.048 V, ≤20 ppm/°C drift - eliminates external reference design burden while maintaining accuracy over full –40°C to 125°C range. |
| Power (typ) | 20 mW per channel at 5 V - achieves high throughput with low thermal load, plus nap (6.2 mA) and sleep (26 µW) modes for duty-cycled systems. |
| Interface | CMOS or LVDS SPI-compatible, SDR/DDR selectable - provides FPGA/MCU compatibility with deterministic timing and reduced EMI via differential signaling. |
| Operating Temp | –40°C to +125°C - qualified for under-hood automotive, motor drive feedback, and harsh-environment industrial monitoring. |
Pinout & Package
Package: 52-lead (7 mm × 8 mm) plastic QFN with exposed pad (Pin 53), RoHS-compliant, lead-free finish. Thermal resistance θJA = 31°C/W; exposed pad must be soldered to PCB ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN1+ / AIN1– to AIN8+ / AIN8– (Pins 1–2, 4–5, 10–11, 13–14, 16–17, 19–20, 47–48, 50–51) | Eight differential analog inputs | Each pair accepts ±REFOUTx voltage range (e.g., ±4.096 V); supports true bipolar/unipolar/arbitrary input configurations without external level-shifting. |
| REFOUT1–4 (Pins 6, 9, 22, 45) | Independent reference buffer outputs | Provide dedicated 4.096 V or 2.048 V references per ADC group; can be disabled via REFBUFEN to accept external references (1.25 V–5 V). |
| REF (Pin 8) | Common reference output | Shared 4.096 V reference for ADC cores 1–4; decoupled with 1 µF low-ESR capacitor for noise-sensitive applications. |
| SDO1–SDO8 (Pins 27–30, 35–36, 39–40) or SDOA±/SDOB±/SDOC±/SDOD± (Pins 27–28, 29–30, 35–36, 39–40) | Serial data outputs | CMOS mode: 8 separate SDO lines (1 per channel); LVDS mode: 4 differential pairs (2 channels/pair) - enables scalable FPGA interface with minimal routing congestion. |
| CLKOUT / CLKOUT± (Pin 33 / Pins 33–34) | Skew-matched clock output | Provides phase-aligned clock for synchronous latching of serial data; CLKOUTEN (Pin 34) disables it to save ~1.5 mW in idle states. |
| CMOS/LVDS (Pin 25) | I/O interface mode select | Ground = CMOS (1.8 V/2.5 V), tie to OVDD = LVDS (2.5 V), float = low-power LVDS - configures driver strength and termination requirements pre-layout. |
| SDR/DDR (Pin 23) | Data rate mode control | GND = single-data-rate (16 SCK edges per 14-bit word), OVDD = double-data-rate (8 SCK edges) - doubles effective throughput without increasing clock frequency. |
| CNV (Pin 24) | Convert initiation input | Edge-triggered command (OVDD logic levels) that starts conversion and defines acquisition window; requires low-jitter source for <500 ps aperture matching. |
| REFBUFEN (Pin 43) | Internal reference buffer enable | Tie to VDD to activate internal buffers; ground to disable all REFOUTx outputs for external reference use - prevents conflict and ensures clean reference switching. |
Key Features
| Feature | Design Value |
|---|---|
| Simultaneous sampling across 8 channels | Enables precise phase-coherent acquisition for multiphase motor current/voltage sensing and beamforming without time-skew correction. |
| Guaranteed 14-bit no missing codes | Eliminates code gaps in critical safety-monitoring applications (e.g., overcurrent detection) without requiring post-processing dither or calibration. |
| Onboard 4.096 V/2.048 V reference with ≤20 ppm/°C drift | Reduces BOM count and layout area while maintaining system accuracy over full industrial temperature range without external trimming. |
| CMOS or LVDS serial interface with SDR/DDR support | Allows migration between low-cost microcontrollers (CMOS) and high-speed FPGAs (LVDS) using same PCB footprint and firmware abstraction layer. |
| –40°C to +125°C operating range | Qualified for direct placement in engine control units, power inverters, and industrial PLC modules without derating or heatsinking. |
| 26 µW sleep mode power | Extends battery life in portable test equipment and enables wake-on-event architectures where ADC remains dormant until triggered by external CNV pulse. |
Applications
| High-Speed Data Acquisition | Optical Networking Monitoring |
|---|---|
Use Scenario: Real-time digitization of multiple sensor outputs (voltage, current, temperature) in automated test equipment with sub-microsecond inter-channel timing alignment. IC Role / Device Role / Timing Role: Simultaneous-sampling octal ADC providing synchronized 14-bit samples at 1.5 Msps per channel with <500 ps aperture matching. Use Value: Eliminates need for external sample-hold ICs and time-interleaving firmware, reducing system latency and channel-to-channel skew to <1 LSB error. | Use Scenario: Monitoring forward/backward optical power, bias current, and TEC voltage across multiple transceivers in 400G/800G coherent modules. IC Role / Device Role / Timing Role: Precision analog front-end digitizing DC-biased photodiode currents and laser driver parameters with 81 dB SNR at 500 kHz. Use Value: Enables closed-loop power stabilization and fault detection within ±0.1% full-scale accuracy over temperature, meeting GR-468 reliability standards. |
| Multiphase Motor Control | Communications Baseband Processing |
Use Scenario: Sampling three-phase stator currents and DC bus voltage in servo drives and EV traction inverters for field-oriented control (FOC) algorithms. IC Role / Device Role / Timing Role: Eight-channel simultaneous ADC capturing Ia, Ib, Ic, Vdc, and auxiliary sensors with synchronized timestamps for PWM-aligned current reconstruction. Use Value: Supports <100 ns current-loop update rates and reduces torque ripple by enabling true vector control without interpolation artifacts. | Use Scenario: Digitizing IF/RF baseband signals from quadrature demodulators in software-defined radios and 5G massive MIMO receivers. IC Role / Device Role / Timing Role: High-SNR, low-latency ADC converting complex I/Q waveforms with 55 MHz input bandwidth and 81 dB SNR at Nyquist. Use Value: Preserves EVM and ACLR performance in wideband receivers, allowing direct sampling up to 750 kHz without analog filtering degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7606C-16 | 16-bit resolution, 1 MSPS, internal reference ±2.5 V, parallel/serial interface, –40°C to +125°C | Higher resolution but lower speed; lacks LVDS interface and independent REFOUTx buffers | Choose when 16-bit precision outweighs 1.5 Msps throughput and differential LVDS timing integrity. |
| ADS8688 | 16-bit, 500 kSPS, single-supply 5 V, integrated PGA, SPI interface, –40°C to +125°C | Slower, includes programmable gain amplifier; no simultaneous sampling or multi-reference architecture | Prefer when input signal conditioning (gain/attenuation) is required on-chip and simultaneous sampling is not mandatory. |
Compared with AD7606C-16 and ADS8688, the LTC2320HUKG-14#PBF uniquely combines 1.5 Msps simultaneous sampling, 81 dB SNR, flexible CMOS/LVDS I/O, and four independent reference outputs-making it optimal for high-fidelity, multi-channel, time-coherent acquisition where speed, noise floor, and interface robustness are jointly critical.
Availability
LTC2320HUKG-14#PBF 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 across extended temperature ranges.
Supply support for LTC2320HUKG-14#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 semiconductors.
The LTC2320 family was designed specifically for demanding industrial and automotive applications requiring simultaneous sampling, wide dynamic range, and guaranteed operation beyond 105°C-targeting precision measurement in harsh thermal environments.
FAQ
What is the maximum sampling rate per channel for the LTC2320HUKG-14#PBF?
The LTC2320HUKG-14#PBF supports a maximum sampling rate of 1.5 Msps per channel with no latency and guaranteed simultaneous sampling across all eight channels. This is achieved using independent sample-and-hold circuits and a shared conversion core architecture, enabling true time-aligned acquisition for phase-critical applications like motor control and beamforming.
Does the LTC2320HUKG-14#PBF require an external reference?
No, the LTC2320HUKG-14#PBF includes an onboard low-drift (≤20 ppm/°C) temperature-compensated reference generating 4.096 V or 2.048 V outputs on REFOUT1–4 pins. External references are optional and only needed when higher accuracy, different voltage levels (1.25 V–5 V), or improved long-term stability are required-enabled by grounding REFBUFEN.
How does the CMOS/LVDS pin affect interface configuration for the LTC2320HUKG-14#PBF?
The CMOS/LVDS pin (Pin 25) selects the digital I/O standard: grounding it enables CMOS mode (1.8 V or 2.5 V OVDD, single-ended SDO1–SDO8), tying it to OVDD enables LVDS mode (2.5 V OVDD, differential SDOA±–SDOD±), and floating enables low-power LVDS. This allows hardware-selectable interface optimization without changing PCB layout or firmware drivers.
What is the operating temperature range specified for the LTC2320HUKG-14#PBF?
The LTC2320HUKG-14#PBF is rated for operation from –40°C to +125°C, corresponding to the "H" grade in Linear Technology's ordering nomenclature. This extended range is validated across all electrical specifications including INL, SNR, and reference drift, making it suitable for under-hood automotive, industrial motor drives, and outdoor infrastructure applications.
Can the LTC2320HUKG-14#PBF perform true simultaneous sampling across all eight channels?
Yes, the LTC2320HUKG-14#PBF features eight independent sample-and-hold circuits that acquire analog inputs simultaneously on the rising edge of the CNV signal. Conversion proceeds in parallel, ensuring <500 ps inter-channel aperture matching and eliminating time skew-critical for accurate power calculations, phase angle estimation, and coherent signal processing.
LTC2320HUKG-14#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:
- 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:
- -40°C ~ 125°C
- Supplier Device Package:
- 52-QFN (7x8)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2320HUKG-14#PBF FAQ
1.How can I place an order for LTC2320HUKG-14#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2320HUKG-14#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 LTC2320HUKG-14#PBF reliable?
The price and inventory of LTC2320HUKG-14#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2320HUKG-14#PBF is usually 5 days.
3.What payment methods are accepted for LTC2320HUKG-14#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2320HUKG-14#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2320HUKG-14#PBF?
LTC2320HUKG-14#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2320HUKG-14#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 LTC2320HUKG-14#PBF?
For technical support, including LTC2320HUKG-14#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2320HUKG-14#PBF requirements.
6.How does Aetrix verify that LTC2320HUKG-14#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2320HUKG-14#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 LTC2320HUKG-14#PBF meets industry standards.
7.What is the process for return or replacement of LTC2320HUKG-14#PBF?
All LTC2320HUKG-14#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2320HUKG-14#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 LTC2320HUKG-14#PBF part is unused and in its original packaging.
Return procedure for LTC2320HUKG-14#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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