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Analog Devices Inc. LTC2320IUKG-14#PBF
- Part No.:
- LTC2320IUKG-14#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 52-WFQFN Exposed Pad
- Datasheet:
-
LTC2320IUKG-14#PBF.pdf
- Description:
- IC ADC 14BIT SAR 52QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,844
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Product details
Overview
LTC2320IUKG-14#PBF from Analog Devices (formerly Linear Technology) is an octal, 14-bit + sign successive approximation register (SAR) analog-to-digital converter with true differential inputs, 1.5 Msps per channel throughput, ±1 LSB typical INL, 81 dB SNR at 500 kHz, and integrated 2.048 V / 4.096 V temperature-compensated reference. It operates from single 3.3 V or 5 V supply and supports CMOS or LVDS serial interface for high-speed data acquisition in multiphase motor control systems.
For engineers reviewing the LTC2320IUKG-14#PBF datasheet, LTC2320IUKG-14#PBF pinout, LTC2320IUKG-14#PBF application, or LTC2320IUKG-14#PBF equivalent, key selection considerations include simultaneous sampling across eight channels, guaranteed no missing codes at 14 bits, wide input common-mode range (0 V to VDD), low power dissipation (20 mW/ch typical), and operation over –40°C to +85°C industrial temperature range.
Technical Context
The LTC2320IUKG-14#PBF implements a true differential SAR architecture with eight independent sampling channels sharing a common conversion clock and CNV signal, enabling precise phase-aligned acquisition. Its internal reference buffers (REFOUT1–4) support flexible voltage scaling per channel group and can be disabled for external reference use via REFBUFEN.
It features dual-mode digital I/O: CMOS (1.8 V–2.5 V OVDD) or LVDS (2.5 V OVDD), selectable via the CMOS/LVDS pin, with SDR/DDR mode configurable via SDR/DDR pin. Timing is synchronized using CLKOUT, which provides skew-matched clocking for FPGA-based data capture.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit + sign - delivers 16,384 distinct codes with bipolar zero-crossing capability for signed signal measurement. |
| 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 accurate end-point linearity critical for closed-loop control feedback paths. |
| SNR | 81 dB typical at fIN = 500 kHz - supports >13.1 ENOB for high-fidelity signal reconstruction in instrumentation applications. |
| Reference | Internal 2.048 V or 4.096 V, 20 ppm/°C max drift - eliminates need for external precision reference in space-constrained designs. |
| Supply | Single 3.3 V or 5 V VDD; 1.71–2.63 V OVDD - simplifies power architecture by avoiding separate analog/digital rails beyond OVDD. |
| Power | 20 mW per channel typical at 1.5 Msps - enables thermally constrained high-channel-count systems without forced cooling. |
Pinout & Package
Package: 52-lead (7 mm × 8 mm) plastic QFN with exposed thermal pad (Pin 53 = GND). Pin pitch: 0.5 mm. RoHS-compliant, lead-free finish.
| 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) | True differential analog inputs | Eight independent pairs accepting ±REFOUTx full-scale differential swing; each pair referenced to its own buffered reference output (REFOUT1–4). |
| REFOUT1–4 (Pins 22, 9, 6, 45) | Per-group reference buffer outputs | Four dedicated 4.096 V (or 2.048 V) buffered references-each drives two ADC channels; disable via REFBUFEN to use external reference. |
| SDO1–SDO8 (Pins 27–30, 35–36, 39–40) or SDOA±/SDOB±/SDOC±/SDOD± (Pins 27–28, 29–30, 35–36, 39–40) | Configurable serial data outputs | CMOS mode: eight independent SDO lines (1 per channel); LVDS mode: four differential pairs (2 channels per pair) for reduced EMI and higher noise immunity. |
| CMOS/LVDS (Pin 25), SDR/DDR (Pin 23) | Interface configuration pins | Hardware-selectable I/O standard (CMOS/LVDS) and data rate mode (SDR/DDR)-no register writes required for basic operation. |
| CNV (Pin 24) | Convert initiation input | Edge-triggered control: rising edge starts acquisition, falling edge initiates conversion and enables data readout-enables deterministic timing alignment across all channels. |
Key Features
| Feature | Design Value |
|---|---|
| Simultaneous sampling across 8 channels | Eliminates inter-channel phase skew in multi-sensor or multi-phase systems-critical for vector control and power quality analysis. |
| Onboard 2.048 V / 4.096 V reference with 20 ppm/°C max drift | Reduces BOM count and layout area while maintaining accuracy over industrial temperature range without external trimming. |
| CMOS or LVDS serial interface with SDR/DDR support | Enables interoperability with both FPGA I/O banks (1.8 V/2.5 V CMOS) and high-speed SerDes receivers (LVDS), with DDR doubling effective data rate. |
| Nap and sleep modes | Reduces idle power to 26 μW total-extends battery life in portable test equipment and enables dynamic power scaling in burst-mode acquisition. |
| Guaranteed no missing codes at 14 bits | Ensures absolute code integrity for safety-critical monitoring applications where unrepresentable input ranges are unacceptable. |
Applications
| High-Speed Motor Control | Optical Network Monitoring |
|---|---|
Use Scenario: Real-time current and back-EMF sampling in three-phase PMSM drives with field-oriented control requiring synchronized measurement across six current/voltage channels plus auxiliary sensors. IC Role / Device Role / Timing Role: Octal simultaneous ADC providing time-aligned 14-bit samples for position estimation, torque calculation, and fault detection at 1.5 Msps per channel. Use Value: Eliminates need for multiple discrete ADCs and complex clock distribution, reducing PCB area by >40% and inter-channel skew to <500 ps. | Use Scenario: Monitoring optical power levels, wavelength drift, and modulation fidelity across multiple DWDM channels in coherent transceivers. IC Role / Device Role / Timing Role: High-SNR digitization of photodiode TIA outputs and laser bias monitor signals with precise common-mode rejection in noisy RF environments. Use Value: 81 dB SNR and 102 dB CMRR enable detection of sub-μW optical power changes amid high-frequency switching noise from pump lasers. |
| Communications Baseband Processing | Industrial Data Acquisition Systems |
Use Scenario: Digitizing I/Q baseband signals from multiple antenna elements in MIMO radio front-ends for beamforming and interference cancellation. IC Role / Device Role / Timing Role: Simultaneous sampling of eight differential analog inputs feeding FPGA-based digital downconverters and adaptive filtering engines. Use Value: LVDS DDR interface sustains 240 MB/s aggregate throughput with deterministic latency, supporting real-time 5G NR sub-6 GHz channel estimation. | Use Scenario: Modular DAQ modules for factory automation, capturing vibration, temperature, pressure, and strain gauge signals across distributed sensor nodes. IC Role / Device Role / Timing Role: Centralized high-resolution digitizer interfacing to multiple isolated analog front-ends via transformer-coupled differential inputs. Use Value: Single-supply operation (3.3 V or 5 V), wide common-mode range (0 V to VDD), and –40°C to +85°C rating ensure robustness in unconditioned industrial cabinets. |
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 ±10 ppm/°C, parallel/serial interface, 5 V only supply | Higher resolution but lower speed; lacks LVDS option and per-channel reference flexibility | Select when ENOB > 14.5 is required and system clocking tolerates 1 MSPS limit; avoid if LVDS noise immunity or multi-reference scaling is needed. |
| ADS8688 | 16-bit, 500 kSPS, integrated programmable gain amplifier (PGA), SPI-only interface, 2.7–5.25 V supply | Slower speed, includes PGA for direct sensor interfacing, no LVDS or simultaneous sampling guarantee | Select for mixed-signal sensor nodes needing on-chip gain adjustment and lower power; not suitable for >1 MSPS real-time control loops. |
Compared with AD7606C-16 and ADS8688, the LTC2320IUKG-14#PBF uniquely combines 1.5 Msps simultaneous sampling, LVDS/CMOS interface flexibility, and per-group reference buffering-making it optimal for FPGA-based high-speed control and communications infrastructure where timing determinism and channel scalability are prioritized over maximum resolution.
Availability
LTC2320IUKG-14#PBF is available at Aetrix Electronics and suitable for high-speed motor control, optical network monitoring, and industrial data acquisition systems requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature grade (–40°C to +85°C).
Supply support for LTC2320IUKG-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. (ADI) 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 by Analog Devices to address demanding high-channel-count, high-speed data acquisition needs in FPGA-centric systems-emphasizing simultaneous sampling integrity, low-latency serial interfaces, and integrated reference stability without external components.
FAQ
What is the operating temperature range for the LTC2320IUKG-14#PBF?
The LTC2320IUKG-14#PBF is rated for industrial operation from –40°C to +85°C. This is confirmed in the Absolute Maximum Ratings table and Order Information section, where "I" grade denotes the –40°C to +85°C range. The device maintains full performance specifications-including ±1 LSB INL, 81 dB SNR, and 1.5 Msps throughput-across this entire range.
Does the LTC2320IUKG-14#PBF require an external reference?
No, the LTC2320IUKG-14#PBF includes an onboard low-drift (20 ppm/°C max) 2.048 V or 4.096 V temperature-compensated reference. REFOUT1–4 pins provide buffered outputs for each channel group. External reference use is optional and enabled by grounding REFBUFEN and driving REFOUTx pins within 1.25 V to 5 V.
How many analog input channels does the LTC2320IUKG-14#PBF support, and are they truly simultaneous?
The LTC2320IUKG-14#PBF supports eight fully differential analog input channels (AIN1+/- through AIN8+/-) with true simultaneous sampling. All channels sample at the exact same instant upon CNV edge assertion, with aperture delay matching specified at ≤500 ps-ensuring phase coherence essential for multi-sensor synchronization.
What digital interface options does the LTC2320IUKG-14#PBF support?
The LTC2320IUKG-14#PBF supports both CMOS and LVDS serial interfaces, selected via the CMOS/LVDS pin. Each mode supports Single Data Rate (SDR) or Double Data Rate (DDR), configured via the SDR/DDR pin. In LVDS mode, outputs are grouped into four differential pairs (SDOA± to SDOD±), each carrying two channels' data.
What power-saving modes are available on the LTC2320IUKG-14#PBF?
The LTC2320IUKG-14#PBF offers Nap Mode (5.3–6.2 mA IVDD, conversion complete) and Sleep Mode (20–110 μA total IVDD + IOVDD). Sleep Mode reduces power to 26 μW, making it suitable for battery-powered DAQ systems with intermittent sampling requirements. Both modes retain register state and reference buffer settings.
LTC2320IUKG-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 ~ 85°C
- Supplier Device Package:
- 52-QFN (7x8)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2320IUKG-14#PBF FAQ
1.How can I place an order for LTC2320IUKG-14#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2320IUKG-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 LTC2320IUKG-14#PBF reliable?
The price and inventory of LTC2320IUKG-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 LTC2320IUKG-14#PBF is usually 5 days.
3.What payment methods are accepted for LTC2320IUKG-14#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2320IUKG-14#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2320IUKG-14#PBF?
LTC2320IUKG-14#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2320IUKG-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 LTC2320IUKG-14#PBF?
For technical support, including LTC2320IUKG-14#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2320IUKG-14#PBF requirements.
6.How does Aetrix verify that LTC2320IUKG-14#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2320IUKG-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 LTC2320IUKG-14#PBF meets industry standards.
7.What is the process for return or replacement of LTC2320IUKG-14#PBF?
All LTC2320IUKG-14#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2320IUKG-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 LTC2320IUKG-14#PBF part is unused and in its original packaging.
Return procedure for LTC2320IUKG-14#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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