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Analog Devices Inc. LTC2325CUKG-12#TRPBF
- Part No.:
- LTC2325CUKG-12#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 52-WFQFN Exposed Pad
- Datasheet:
-
LTC2325CUKG-12#TRPBF.pdf
- Description:
- IC ADC 12BIT SAR 52QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,502
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Product details
Overview
LTC2325CUKG-12#TRPBF from Analog Devices is a quad-channel, 12-bit + sign successive approximation register (SAR) analog-to-digital converter with simultaneous sampling, 5 Msps per channel throughput, ±0.5 LSB typical INL, 77 dB SNR at 2.2 MHz, 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 LTC2325CUKG-12#TRPBF datasheet, LTC2325CUKG-12#TRPBF pinout, LTC2325CUKG-12#TRPBF application, or LTC2325CUKG-12#TRPBF equivalent, key selection criteria include guaranteed 12-bit no-missing-codes operation, differential input range up to ±4.096 V, CMOS/LVDS serial interface flexibility, 52-lead QFN package thermal performance, and support for 0°C to 70°C industrial temperature range.
Technical Context
The LTC2325CUKG-12#TRPBF implements four independent SAR ADC cores sharing synchronized sample-and-hold circuitry, enabling true simultaneous sampling across all channels with aperture delay matching ≤500 ps. Its internal reference buffer supports 4.096 V or 2.048 V outputs with ≤20 ppm/°C drift and can be disabled for external reference use.
It supports dual I/O modes: CMOS (1.8 V–2.5 V OVDD) and LVDS (2.5 V OVDD), with selectable SDR/DDR serial output timing. Conversion latency is one cycle (200 ns at 5 Msps), and power dissipation is 45 mW per channel in active mode, dropping to 26 μW in sleep mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit + sign: delivers 13-bit signed output words (−4096 to +4095) with guaranteed no missing codes over full temperature range. |
| Sampling Rate | 5 Msps per channel: enables real-time capture of signals up to 2.2 MHz Nyquist bandwidth with 32k-point FFT capability. |
| INL | ±0.5 LSB typical: ensures accurate amplitude fidelity in precision measurement applications such as phase-resolved motor current sensing. |
| SNR | 77 dB typical at fIN = 2.2 MHz: supports >12.5 ENOB for high-fidelity signal reconstruction in communications baseband processing. |
| Reference | Internal 4.096 V ±0.5% buffered output with ≤20 ppm/°C drift: eliminates need for external reference and reduces BOM count in space-constrained designs. |
| Supply | Single 3.3 V or 5 V VDD with 1.71–2.63 V OVDD: allows interoperability with 1.8 V/2.5 V FPGA I/O banks and simplifies power rail planning. |
| Package | 52-lead 7 mm × 8 mm QFN with exposed thermal pad: provides low θJA = 31°C/W for sustained 5 Msps operation without forced airflow. |
Pinout & Package
Package: 52-lead plastic QFN (7 mm × 8 mm), exposed pad (Pin 53) soldered to PCB ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN1+ / AIN1− to AIN4+ / AIN4− (Pins 1–2, 4–5, 10–11, 13–14) | Differential analog inputs (4 channels) | Accept ±4.096 V differential swing with wide common-mode range (0 V to VDD); enable true simultaneous sampling for phase-coherent acquisition. |
| REFOUT1–REFOUT4 (Pins 6, 9, 22, 45) | Per-channel reference buffer outputs | Each drives dedicated 4.096 V reference to its associated ADC core; individually disableable via REFBUFEN to support external references. |
| SDO1–SDO4 / SDOA±–SDOD± (Pins 27, 29, 35, 39 and 28, 30, 36, 40) | Serial data outputs (CMOS or LVDS) | Four independent high-speed data lanes; LVDS variants require 100 Ω differential termination at receiver for EMI-robust 105 MHz SCK operation. |
| SCK / SCK± (Pin 41 / Pins 41–42) | Serial clock input | Accepts single-ended (CMOS) or differential (LVDS) clock; supports SDR (falling-edge only) or DDR (both edges) to halve required clock frequency for same data rate. |
| CNV (Pin 24) | Convert initiation input | Edge-triggered control: rising edge starts acquisition, falling edge initiates conversion and releases data; requires low-jitter OVDD-level signal. |
| REFBUFEN (Pin 43) | Reference buffer enable | Pulled up internally to VDD; grounding disables all four REFOUT buffers, allowing use of single external reference on REF (Pin 8). |
Key Features
| Feature | Design Value |
|---|---|
| Simultaneous sampling across 4 channels | Eliminates inter-channel phase skew for accurate multiphase waveform analysis in motor control and power quality monitoring. |
| Onboard 4.096 V reference with 20 ppm/°C max drift | Reduces system calibration burden and improves long-term accuracy stability without external reference components. |
| CMOS or LVDS serial interface with SDR/DDR mode | Enables flexible interfacing to diverse host processors - low-power CMOS for microcontrollers, noise-immune LVDS for FPGAs in dense PCB layouts. |
| One-cycle latency and 5 Msps/channel throughput | Supports deterministic real-time control loops with ≤200 ns total conversion-to-data-readout delay. |
| Nap and sleep power modes | Reduces idle power to 6.4 mA (nap) or 20 µA (sleep), extending uptime in battery-backed or energy-conscious DAQ systems. |
Applications
| Motor Phase Current Monitoring | Optical Network Signal Analysis |
|---|---|
Use Scenario: Real-time acquisition of three-phase stator currents and DC bus voltage in servo drives using isolated sigma-delta modulators or shunt amplifiers. IC Role / Device Role / Timing Role: Simultaneous 4-channel ADC captures synchronized current/voltage samples at 5 Msps to compute instantaneous torque and flux vectors. Use Value: Aperture delay matching ≤500 ps ensures <0.02° phase error between channels at 2 kHz fundamental, critical for field-oriented control accuracy. | Use Scenario: Digitizing baseband I/Q signals from coherent optical receivers in 100G/400G transceivers before DSP-based equalization and demodulation. IC Role / Device Role / Timing Role: High-SNR, low-THD ADC front-end providing 77 dB SNR and −86 dB THD to preserve modulation constellation integrity. Use Value: 77 dB SNR enables >12.5 ENOB, supporting 64-QAM and higher-order modulation schemes without quantization-induced EVM degradation. |
| High-Speed Data Acquisition Systems | Communications Test Equipment |
Use Scenario: Modular digitizers in automated test equipment capturing transient waveforms (e.g., power supply turn-on, RF amplifier burst response) with nanosecond timing resolution. IC Role / Device Role / Timing Role: Quad SAR ADC with one-cycle latency and 5 Msps/channel feeds FPGA-based real-time trigger and post-processing logic. Use Value: 200 ns conversion latency and deterministic timing allow sub-microsecond trigger-to-acquisition response, essential for glitch capture and parametric testing. | Use Scenario: Wideband spectrum analyzers and vector signal analyzers requiring multi-channel IF sampling for image-reject downconversion and digital IF filtering. IC Role / Device Role / Timing Role: Simultaneous sampling of multiple IF paths (e.g., I/Q + auxiliary monitor) with matched gain/phase response. Use Value: Guaranteed 12-bit no-missing-codes operation ensures accurate amplitude histogramming and spurious-free dynamic range (SFDR ≥90 dB) for compliance testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-channel, high-speed SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7606C-16 | 16-bit resolution, 1 Msps/channel, parallel/serial interface, internal 2.5 V reference, 64-lead LQFP | Better resolution but lower speed; suited for precision power metering rather than real-time control loop closure. | Select when ENOB >14 is required and 1 Msps suffices; avoid if 5 Msps simultaneous sampling or LVDS interface is mandatory. |
| ADS8684 | 16-bit, 500 ksps/channel, SPI interface only, no internal reference, 32-lead QFN | Lower power (25 mW total), no simultaneous sampling, requires external reference and driver op-amps. | Prefer for low-power, cost-sensitive industrial PLC modules where speed and simultaneity are secondary to integration and footprint. |
Compared with AD7606C-16 and ADS8684, the LTC2325CUKG-12#TRPBF uniquely delivers 5 Msps simultaneous sampling with LVDS/CMOS flexibility and integrated 4.096 V reference in a thermally efficient 52-lead QFN - making it optimal for closed-loop motor control and optical IF digitization where timing coherence and interface robustness are non-negotiable.
Availability
LTC2325CUKG-12#TRPBF is available at Aetrix Electronics and suitable for high-speed data acquisition systems, optical networking front-ends, and multiphase motor control applications requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for LTC2325CUKG-12#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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC2325 product line delivers high-speed, simultaneous-sampling SAR ADCs optimized for real-time control, instrumentation, and communications infrastructure - emphasizing low latency, channel matching, and integrated reference stability.
FAQ
What is the operating temperature range for the LTC2325CUKG-12#TRPBF?
The LTC2325CUKG-12#TRPBF is specified for 0°C to 70°C ambient operation (Commercial grade). This is confirmed by the "U" in the part number suffix and the order information table listing "LTC2325CUKG-12#TRPBF" under "0°C to 70°C" temperature range. It uses the same 52-lead QFN package as industrial and high-temp variants but is tested and warranted only across this commercial range.
Does the LTC2325CUKG-12#TRPBF require an external reference?
No, the LTC2325CUKG-12#TRPBF includes an onboard low-drift 4.096 V (or 2.048 V) temperature-compensated reference buffer. REFBUFEN (Pin 43) is pulled up internally to VDD, enabling the reference by default. An external reference is optional and only needed when disabling the internal buffers by grounding REFBUFEN and driving REF (Pin 8) or individual REFOUTx pins.
How many pins does the LTC2325CUKG-12#TRPBF have, and what is its package type?
The LTC2325CUKG-12#TRPBF uses a 52-lead plastic QFN package measuring 7 mm × 8 mm with an exposed thermal pad (Pin 53). This is explicitly stated in the "Pin Configuration" section and "Order Information" table, and the top-view diagram confirms 52 signal pads plus the exposed pad.
Can the LTC2325CUKG-12#TRPBF interface with both CMOS and LVDS logic families?
Yes, the LTC2325CUKG-12#TRPBF supports both interfaces via the CMOS/LVDS pin (Pin 25): tie to GND for CMOS mode (1.8 V–2.5 V OVDD), tie to OVDD for standard LVDS, or leave floating for low-power LVDS. The datasheet provides separate timing and electrical specs for each mode, including differential termination requirements for LVDS.
What is the maximum sampling rate per channel for the LTC2325CUKG-12#TRPBF?
The LTC2325CUKG-12#TRPBF achieves a maximum sampling rate of 5 Msps per channel, with guaranteed operation across the full 0°C to 70°C temperature range. This is specified in the "ADC Timing Characteristics" table under fSMPL, and confirmed by the "5Msps/Ch Throughput Rate" feature bullet and timing diagrams showing 200 ns minimum cycle time.
LTC2325CUKG-12#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:
- 12
- Sampling Rate (Per Second):
- 5M
- 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:
- -
LTC2325CUKG-12#TRPBF FAQ
1.How can I place an order for LTC2325CUKG-12#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2325CUKG-12#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 LTC2325CUKG-12#TRPBF reliable?
The price and inventory of LTC2325CUKG-12#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2325CUKG-12#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2325CUKG-12#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2325CUKG-12#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2325CUKG-12#TRPBF?
LTC2325CUKG-12#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2325CUKG-12#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 LTC2325CUKG-12#TRPBF?
For technical support, including LTC2325CUKG-12#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2325CUKG-12#TRPBF requirements.
6.How does Aetrix verify that LTC2325CUKG-12#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2325CUKG-12#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 LTC2325CUKG-12#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2325CUKG-12#TRPBF?
All LTC2325CUKG-12#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2325CUKG-12#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 LTC2325CUKG-12#TRPBF part is unused and in its original packaging.
Return procedure for LTC2325CUKG-12#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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