Analog Devices Inc. LTC2324CUKG-14#TRPBF
- Part No.:
- LTC2324CUKG-14#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 52-WFQFN Exposed Pad
- Datasheet:
-
LTC2324CUKG-14#TRPBF.pdf
- Description:
- IC ADC 14BIT SAR 52QFN
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
LTC2324CUKG-14#TRPBF from Analog Devices is a quad, 14-bit + sign successive approximation register (SAR) analog-to-digital converter with simultaneous sampling across all four channels at 2 Msps per channel, differential inputs up to ±4.096 V, 81 dB SNR at 500 kHz, and integrated 2.048 V / 4.096 V temperature-compensated reference. It supports CMOS or LVDS serial I/O and operates from single 3.3 V or 5 V supply - ideal for high-speed data acquisition in multiphase motor control and optical networking.
For engineers reviewing the LTC2324CUKG-14#TRPBF datasheet, LTC2324CUKG-14#TRPBF pinout, LTC2324CUKG-14#TRPBF application, or LTC2324CUKG-14#TRPBF equivalent, key selection criteria include guaranteed 14-bit no-missing-codes performance, simultaneous sampling timing matching (<500 ps aperture delay matching), low-power nap/sleep modes (26 µW), and QFN-52 package compatibility with high-density FPGA-based signal chains.
Technical Context
The LTC2324CUKG-14#TRPBF implements four independent SAR ADC cores sharing a common reference architecture with individually buffered REFOUT1–4 outputs. Each channel features true differential input pairs (AINx+, AINx–) with 8 VP-P full-scale range and wide common-mode support (0 V to VDD), enabling bipolar/unipolar/arbitrary input configurations without external level-shifting.
Its digital interface supports configurable I/O mode (CMOS/LVDS/low-power LVDS) and data rate mode (SDR/DDR), with dedicated SDOx pins per channel and skew-matched CLKOUT for deterministic FPGA capture. Internal reference buffer enable (REFBUFEN) allows seamless transition between internal 4.096 V reference and external reference sources.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit + sign - delivers 32,768 discrete codes with guaranteed no missing codes over full temperature range. |
| Sampling Rate | 2 Msps per channel, simultaneous - enables real-time capture of four synchronized signals without inter-channel skew. |
| SNR | 81 dB typical at fIN = 500 kHz - supports >13.2 ENOB for precision measurement in noise-sensitive applications. |
| Input Range | ±4.096 V differential (8 VP-P) - accommodates industrial sensor outputs and op-amp stages without attenuation. |
| Reference | Internal 4.096 V (or 2.048 V), 20 ppm/°C max drift - eliminates need for external reference IC and reduces BOM count. |
| Power Dissipation | 40 mW per channel at 2 Msps (5 V), 26 µW in sleep mode - balances speed and ultra-low idle power for battery-aware systems. |
| Operating Temp | 0°C to 70°C (C-grade) - validated for commercial and industrial control environments with stable parametric performance. |
Pinout & Package
Package: 52-lead (7 mm × 8 mm) plastic QFN with exposed thermal pad (Pin 53 = GND). Requires soldering of exposed pad to PCB ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN1+ / AIN1– AIN2+ / AIN2– AIN3+ / AIN3– AIN4+ / AIN4– | Differential analog inputs (Ch 1–4) | Accept true differential signals up to ±REFOUTx; support 0 V to VDD common-mode range - no configuration required for bipolar operation. |
| REFOUT1–4 | Per-channel reference buffer outputs | Each provides 4.096 V (or 2.048 V) reference to its respective ADC core; disable via REFBUFEN to use external reference. |
| SDO1–4 / SDOA±–SDOD± | Channel-specific serial data outputs | CMOS mode: single-ended SDO1–4; LVDS mode: differential SDOA±–SDOD± - enables independent FPGA lane assignment per channel. |
| CLKOUT / CLKOUT± | Skew-matched output clock | Delivers SCK-delayed clock synchronized to SDO edges - critical for timing-critical FPGA capture without additional deskew logic. |
| CMOS/LVDS SDR/DDR REFBUFEN CNV | Configuration & control inputs | Select I/O standard (GND/OVDD/floating), data rate mode (GND/OVDD), reference source (VDD/GND), and conversion trigger (OVDD-level pulse). |
Key Features
| Feature | Design Value |
|---|---|
| Four simultaneous sampling channels | Hardware-synchronized acquisition across all four ADCs - eliminates software-triggered skew in phase-critical systems like motor current sensing. |
| Onboard 4.096 V reference with 20 ppm/°C drift | Reduces system-level calibration burden and improves long-term accuracy stability without external reference components. |
| CMOS or LVDS serial interface | Interoperability with both FPGA I/O banks (1.8 V/2.5 V CMOS) and high-speed differential receivers - avoids level-shifter ICs. |
| Aperture delay matching <500 ps | Ensures sub-degree phase alignment between channels - essential for coherent multi-channel FFT and vector control algorithms. |
| Nap/sleep modes with 26 µW consumption | Enables rapid wake-up (<50 ms REFOUT wake time) while minimizing standby power in intermittent-sampling architectures. |
Applications
| Multiphase Motor Control | Optical Network Monitoring |
|---|---|
Use Scenario: Real-time sampling of three-phase stator currents and DC bus voltage in servo drives. IC Role / Device Role / Timing Role: Simultaneous 4-channel acquisition captures current/voltage waveforms with <500 ps inter-channel timing alignment for accurate field-oriented control (FOC) calculations. Use Value: Enables precise torque ripple suppression and dynamic response improvement by eliminating software-induced sampling skew between phases. |
Use Scenario: High-fidelity monitoring of laser diode bias current and photodiode feedback in coherent transceivers. IC Role / Device Role / Timing Role: Four-channel SAR ADC digitizes analog monitor outputs (TIA, bias DAC, thermistor, photodiode) with synchronized timestamps for closed-loop calibration. Use Value: 81 dB SNR and 14-bit linearity ensure <0.1% gain error in optical power control loops across temperature and aging. |
| High-Speed Data Acquisition Systems | Communications Test Equipment |
Use Scenario: Modular DAQ modules for automated test equipment requiring synchronized multi-sensor capture. IC Role / Device Role / Timing Role: Quad ADC serves as front-end for four independent signal paths (voltage, current, temperature, vibration), each with dedicated REFOUT and SDO. Use Value: Per-channel reference buffers and isolated SDO outputs prevent crosstalk and simplify PCB routing in dense mixed-signal modules. |
Use Scenario: Baseband signal analysis in 5G NR RF test sets capturing I/Q demodulated waveforms. IC Role / Device Role / Timing Role: Simultaneous sampling of dual I/Q pairs plus auxiliary control signals (LO tuning, PA bias) at 2 Msps/channel. Use Value: 2 Msps throughput with no latency enables real-time spectral analysis and EVM calculation without frame buffering delays. |
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, parallel/serial interface, internal 2.5 V ref, no LVDS support | Better resolution but lower speed; lacks LVDS and per-channel REFOUT flexibility | Choose for higher precision at lower sample rates where LVDS and independent references are not required. |
| ADS8684 | 14-bit, 500 kSPS/ch, SPI-only, integrated PGA, 5 V supply only, no simultaneous sampling guarantee | Lower speed, no hardware-synchronized acquisition; includes programmable gain amplifier | Choose when variable input scaling is needed and inter-channel timing alignment is less critical than gain flexibility. |
Compared with AD7606C-16 and ADS8684, the LTC2324CUKG-14#TRPBF uniquely combines 2 Msps simultaneous sampling, LVDS/CMOS interface configurability, per-channel reference buffers, and ultra-low sleep power - making it optimal for FPGA-based, high-speed, multi-channel coherent acquisition systems.
Availability
LTC2324CUKG-14#TRPBF is available at Aetrix Electronics and suitable for high-speed data acquisition systems, optical network monitoring equipment, and multiphase motor control designs requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for LTC2324CUKG-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 (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC2324CUKG-14#TRPBF belongs to the LTC23xx family of high-speed SAR ADCs designed specifically for demanding applications requiring simultaneous multi-channel sampling, low latency, and flexible digital interfacing in space- and power-constrained systems.
FAQ
What is the maximum guaranteed sampling rate per channel for the LTC2324CUKG-14#TRPBF?
The LTC2324CUKG-14#TRPBF guarantees 2 Msps per channel with simultaneous sampling across all four channels. This is confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables, where fSMPL is specified as 2 Msps (minimum) over the full operating temperature range. No derating is required for the C-grade (0°C to 70°C) version.
Does the LTC2324CUKG-14#TRPBF support true differential input operation without external circuitry?
Yes, the LTC2324CUKG-14#TRPBF supports true differential input operation natively on all four channels (AIN1± through AIN4±). Its input structure accepts arbitrary common-mode voltages from 0 V to VDD and differential swings up to ±REFOUTx, requiring no external resistors, amplifiers, or level shifters - as explicitly stated in the "True Differential Inputs" block diagram and Pin Functions section.
Can the internal reference of the LTC2324CUKG-14#TRPBF be disabled to use an external reference?
Yes, the internal reference buffers (REFOUT1–4) can be disabled by grounding the REFBUFEN pin (Pin 43). When disabled, external references in the range of 1.25 V to 5 V may be applied directly to REFOUT1–4 pins. This is documented in the Pin Functions description and confirmed in the Electrical Characteristics table under "IREFOUT1,2,3,4" conditions.
What are the power consumption characteristics of the LTC2324CUKG-14#TRPBF in sleep mode?
In sleep mode, the LTC2324CUKG-14#TRPBF consumes 20 µA to 90 µA total (IVDD + IOVDD), corresponding to 26 µW typical power dissipation at 5 V supply. This value is specified in the Power Requirements table under "ISLEEP" and "PD_5V Sleep Mode", and applies across the full 0°C to 70°C operating range.
Is the LTC2324CUKG-14#TRPBF pin-compatible with other variants in the LTC2324 family?
Yes, all LTC2324 variants (including I-grade and H-grade) share identical 52-lead QFN (UKG) packaging and pinout. The LTC2324CUKG-14#TRPBF differs only in temperature grade (0°C to 70°C) and tape-and-reel packaging (#TRPBF), with no changes to pin function, electrical behavior, or mechanical footprint - as confirmed in the Order Information table.
LTC2324CUKG-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):
- 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#TRPBF FAQ
1.How can I place an order for LTC2324CUKG-14#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2324CUKG-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 LTC2324CUKG-14#TRPBF reliable?
The price and inventory of LTC2324CUKG-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 LTC2324CUKG-14#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2324CUKG-14#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2324CUKG-14#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2324CUKG-14#TRPBF?
LTC2324CUKG-14#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2324CUKG-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 LTC2324CUKG-14#TRPBF?
For technical support, including LTC2324CUKG-14#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2324CUKG-14#TRPBF requirements.
6.How does Aetrix verify that LTC2324CUKG-14#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2324CUKG-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 LTC2324CUKG-14#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2324CUKG-14#TRPBF?
All LTC2324CUKG-14#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2324CUKG-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 LTC2324CUKG-14#TRPBF part is unused and in its original packaging.
Return procedure for LTC2324CUKG-14#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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