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Analog Devices Inc. LTC2324CUKG-14#PBF
- Part No.:
- LTC2324CUKG-14#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 52-WFQFN Exposed Pad
- Datasheet:
-
LTC2324CUKG-14#PBF.pdf
- Description:
- IC ADC 14BIT SAR 52QFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
LTC2324CUKG-14#PBF from Analog Devices is a quad, 14-bit + sign successive approximation register (SAR) analog-to-digital converter with simultaneous sampling across four differential input channels, 2 Msps per channel throughput, ±1 LSB typical INL, 81 dB SNR at 500 kHz, and integrated 4.096 V temperature-compensated reference - designed for high-speed data acquisition in multiphase motor control and optical networking systems.
For engineers reviewing the LTC2324CUKG-14#PBF datasheet, LTC2324CUKG-14#PBF pinout, LTC2324CUKG-14#PBF application, or LTC2324CUKG-14#PBF equivalent, key selection criteria include guaranteed 14-bit no-missing-codes operation, LVDS/CMOS SPI-compatible serial interface support, 52-lead QFN package thermal performance, and dual-reference voltage options (2.048 V / 4.096 V) with 20 ppm/°C max drift.
Technical Context
The LTC2324CUKG-14#PBF implements four independent SAR ADC cores sharing a common reference architecture, each with true differential inputs supporting 8 VP-P full-scale range and wide common-mode input (0 V to VDD). Its internal reference buffer outputs 4.096 V (or 2.048 V) with ≤20 ppm/°C drift and supports external overdrive via REFBUFEN control.
It supports configurable digital I/O modes (CMOS/LVDS/low-power LVDS) and data transfer protocols (SDR/DDR), with dedicated SDOx pins per channel and skew-matched CLKOUT for FPGA synchronization. Aperture jitter is 1 ps RMS, and conversion time is 220 ns with zero latency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit + sign with guaranteed no missing codes - ensures monotonicity and precision in closed-loop control feedback paths. |
| Sampling Rate | 2 Msps per channel, simultaneous across all four channels - enables real-time capture of fast transient events in multi-sensor systems. |
| SNR | 81 dB typical at fIN = 500 kHz - delivers >13.2 effective bits for high-fidelity signal reconstruction in communications receivers. |
| INL | ±1 LSB typical, ±2.5 LSB max over temperature - maintains linearity critical for calibration-sensitive instrumentation applications. |
| Reference | Internal 4.096 V (or 2.048 V) buffered output, 20 ppm/°C max drift - eliminates need for external reference ICs in space-constrained designs. |
| Power Dissipation | 40 mW per channel at 2 Msps (5 V supply), 26 μW in sleep mode - balances high-speed performance with ultra-low idle power for battery-backed systems. |
| Input Bandwidth | 55 MHz –3 dB - supports accurate digitization of wideband signals including IF sampling in wireless infrastructure. |
Pinout & Package
Package: 52-lead (7 mm × 8 mm) plastic QFN with exposed pad (Pin 53 = GND), rated for 0°C to 70°C operation (C-grade).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN1+ / AIN1– to AIN4+ / AIN4– (Pins 1–2, 4–5, 10–11, 13–14) | Differential analog inputs | Four independent true-differential pairs accepting ±REFOUTx full-scale range; support bipolar/unipolar/arbitrary common-mode up to VDD. |
| REFOUT1–4 (Pins 6, 9, 22, 45) | Per-channel reference buffer outputs | Each provides 4.096 V (or 2.048 V) to its associated ADC core; individually decoupled with 10 µF ceramic capacitors. |
| REF (Pin 8) | Common reference node | Shared 4.096 V output; may be overdriven by external reference to synchronize all four ADCs to one source. |
| SDO1–4 / SDOA±–SDOD± (Pins 27, 29, 35, 39 and 28, 30, 36, 40) | Serial data outputs | CMOS mode uses single-ended SDOx; LVDS mode uses differential pairs - selectable per system noise and timing requirements. |
| SCK / SCK± (Pin 41 / Pins 41–42) | Serial clock input | Accepts CMOS or differential LVDS clock; supports SDR (falling-edge only) or DDR (both edges) data capture up to 110 MHz. |
| CLKOUT / CLKOUT± (Pin 33 / Pins 33–34) | Skew-matched output clock | Echoes SCK with fixed delay; enables deterministic setup/hold timing at FPGA receiver without additional clock routing. |
| CNV (Pin 24) | Convert trigger | Edge-triggered command initiating simultaneous sampling and conversion; requires low-jitter OVDD-level pulse. |
| REFBUFEN (Pin 43) | Reference buffer enable | Tie to VDD for internal reference use; ground to disable buffers and accept external 1.25–5 V references on REFOUTx pins. |
| CMOS/LVDS (Pin 25) | I/O interface mode select | GND = CMOS; OVDD = LVDS; floating = low-power LVDS - configures driver strength and termination behavior. |
| SDR/DDR (Pin 23) | Data rate mode select | GND = SDR (16 SCK edges per 14-bit word); OVDD = DDR (8 SCK edges per word) - doubles effective data rate without increasing clock frequency. |
Key Features
| Feature | Design Value |
|---|---|
| Simultaneous sampling across 4 channels | Eliminates inter-channel phase skew critical for vector control in 3-phase motor drives and beamforming in RF front-ends. |
| Onboard 4.096 V reference with 20 ppm/°C drift | Reduces BOM count and layout area while maintaining accuracy over industrial temperature range (0°C to 70°C). |
| LVDS/CMOS dual-mode serial interface | Enables interoperability with both legacy CMOS FPGAs and high-noise immunity LVDS receivers in dense PCB environments. |
| Zero-latency conversion architecture | Delivers immediate data availability after CNV edge - essential for real-time closed-loop control with sub-microsecond response. |
| Configurable nap/sleep power states | Reduces quiescent current to 26 μW, enabling rapid wake-up (<50 ms REFOUT stabilization) for duty-cycled sensing applications. |
Applications
| High-Speed Data Acquisition Systems | Optical Networking Equipment |
|---|---|
Use Scenario: Real-time monitoring of multiple laser bias currents and photodiode outputs in coherent transceivers. IC Role / Device Role / Timing Role: Simultaneously samples four analog sensor channels at 2 Msps with matched aperture timing to preserve phase relationships between optical lanes. Use Value: 81 dB SNR and 55 MHz bandwidth enable accurate characterization of high-frequency modulation artifacts in 100G+ optical links. | Use Scenario: Digitizing RF-over-fiber IF signals in distributed antenna systems and passive optical networks. IC Role / Device Role / Timing Role: Acts as front-end ADC for baseband processing; LVDS outputs drive FPGA directly with minimal jitter accumulation. Use Value: Skew-matched CLKOUT and 1 ps RMS aperture jitter ensure <0.1° phase error in IQ demodulation at 500 MHz input. |
| Multiphase Motor Control | Communications Test Equipment |
Use Scenario: Closed-loop current and position feedback in servo drives for robotics and CNC machinery. IC Role / Device Role / Timing Role: Four-channel simultaneous sampling captures stator phase currents and encoder signals with deterministic timing alignment. Use Value: ±1 LSB INL and zero-latency operation allow precise field-oriented control (FOC) with <1% torque ripple at 20 kHz PWM frequencies. | Use Scenario: Signal integrity analysis in high-speed serial link compliance testing (PCIe, USB, SATA). IC Role / Device Role / Timing Role: Captures eye diagrams and jitter spectra using synchronized multi-channel acquisition across differential pairs. Use Value: 14-bit resolution + 81 dB SNR enables measurement of <−70 dBc harmonic distortion and <100 fs RMS jitter in bit-error-rate testers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7606C-16 | 16-bit resolution, 1 Msps/ch, internal 2.5 V reference, parallel/serial interface, 64-lead LQFP | Better resolution but lower speed; lacks LVDS outputs and simultaneous 2 Msps capability | Select when higher DC accuracy outweighs speed and noise immunity requirements. |
| ADS8684 | 16-bit, 500 ksps/ch, single-supply 5 V, SPI-only, 32-lead QFN, no internal reference | Lower sample rate, no integrated reference or LVDS, smaller footprint | Choose for cost-sensitive, lower-bandwidth industrial PLC analog input modules. |
Compared with AD7606C-16 and ADS8684, the LTC2324CUKG-14#PBF uniquely combines 2 Msps simultaneous sampling, integrated 4.096 V reference, and LVDS interface in a compact 52-lead QFN - making it optimal for space-constrained, high-dynamic-range applications requiring deterministic multi-channel timing.
Availability
LTC2324CUKG-14#PBF is available at Aetrix Electronics and suitable for high-speed data acquisition systems, optical networking equipment, and multiphase motor control applications requiring stable component supply, long-term production continuity, and guaranteed C-grade (0°C to 70°C) performance.
Supply support for LTC2324CUKG-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. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC2324 series belongs to Analog Devices' high-speed precision SAR ADC product line, engineered for applications demanding simultaneous multi-channel sampling, low noise, and robust serial interfacing in harsh electromagnetic environments.
FAQ
What is the maximum sampling rate per channel for the LTC2324CUKG-14#PBF?
The LTC2324CUKG-14#PBF achieves 2 Msps per channel with simultaneous sampling across all four channels. This rate is maintained under full operating conditions (0°C to 70°C) with either 3.3 V or 5 V VDD, and supports both CMOS and LVDS digital interfaces without performance degradation.
Does the LTC2324CUKG-14#PBF include an internal voltage reference?
Yes, the LTC2324CUKG-14#PBF integrates a low-drift, temperature-compensated reference that outputs either 2.048 V or 4.096 V depending on VDD level. The reference has a maximum temperature coefficient of 20 ppm/°C and can be disabled via the REFBUFEN pin to accommodate external references from 1.25 V to 5 V.
Can the LTC2324CUKG-14#PBF operate with both CMOS and LVDS digital interfaces?
Yes, the LTC2324CUKG-14#PBF supports three I/O modes selected by the CMOS/LVDS pin: CMOS (ground), LVDS (tied to OVDD), or low-power LVDS (floating). Each mode configures appropriate driver strength and termination, and all support both SDR and DDR serial data transfer protocols.
What package type and thermal characteristics does the LTC2324CUKG-14#PBF use?
The LTC2324CUKG-14#PBF is housed in a 52-lead plastic QFN package measuring 7 mm × 8 mm with an exposed thermal pad (Pin 53 = GND). Its θJA is 31°C/W and θJC is 2°C/W, enabling efficient heat dissipation in high-density layouts typical of optical and motor control modules.
How does the LTC2324CUKG-14#PBF handle simultaneous sampling across four channels?
The LTC2324CUKG-14#PBF uses a shared CNV input to trigger simultaneous track-and-hold acquisition across all four SAR ADC cores. Aperture delay matching is specified at ≤500 ps, ensuring sub-100 ps inter-channel skew - critical for preserving phase coherence in multi-sensor measurements and vector control algorithms.
LTC2324CUKG-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):
- 2M
- Number of Inputs:
- 4
- Input Type:
- Differential
- Data Interface:
- LVDS - Parallel, SPI
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- 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:
- -
LTC2324CUKG-14#PBF FAQ
1.How can I place an order for LTC2324CUKG-14#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2324CUKG-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 LTC2324CUKG-14#PBF reliable?
The price and inventory of LTC2324CUKG-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 LTC2324CUKG-14#PBF is usually 5 days.
3.What payment methods are accepted for LTC2324CUKG-14#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2324CUKG-14#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2324CUKG-14#PBF?
LTC2324CUKG-14#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2324CUKG-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 LTC2324CUKG-14#PBF?
For technical support, including LTC2324CUKG-14#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2324CUKG-14#PBF requirements.
6.How does Aetrix verify that LTC2324CUKG-14#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2324CUKG-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 LTC2324CUKG-14#PBF meets industry standards.
7.What is the process for return or replacement of LTC2324CUKG-14#PBF?
All LTC2324CUKG-14#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2324CUKG-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 LTC2324CUKG-14#PBF part is unused and in its original packaging.
Return procedure for LTC2324CUKG-14#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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