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Analog Devices Inc. LTC2323HUFD-16#TRPBF
- Part No.:
- LTC2323HUFD-16#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 28-WFQFN Exposed Pad
- Datasheet:
-
LTC2323HUFD-16#TRPBF.pdf
- Description:
- IC ADC 16BIT SAR 28QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,286
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Product details
Overview
LTC2323HUFD-16#TRPBF from Analog Devices is a dual-channel, 16-bit, 5 Msps successive approximation register (SAR) analog-to-digital converter with differential inputs, ±4 LSB typical INL, 81 dB SNR at 2.2 MHz, and integrated 4.096 V temperature-compensated reference. It operates from a single 3.3 V or 5 V supply, supports CMOS or LVDS serial interface, and targets high-speed data acquisition in automotive and industrial systems requiring wide common-mode range and high dynamic performance.
For engineers reviewing the LTC2323HUFD-16#TRPBF datasheet, LTC2323HUFD-16#TRPBF pinout, LTC2323HUFD-16#TRPBF application, or LTC2323HUFD-16#TRPBF equivalent, key selection criteria include guaranteed 16-bit no-missing-codes operation over –40°C to +125°C, 5 Msps per channel throughput with one-cycle latency, dual independent 8 VP-P differential input ranges, low 40 mW/channel power dissipation, and support for both internal reference and external reference configurations.
Technical Context
The LTC2323HUFD-16#TRPBF implements two independent SAR ADC cores sharing a common clock domain but operating with separate analog front-ends and serial output paths. Each channel features a fully differential input stage with 85 dB CMRR at 2.2 MHz and supports arbitrary common-mode voltages from 0 V to VDD, enabling direct interfacing with op-amp drivers, isolated signal chains, and multiphase motor current sensors without level-shifting.
Its SPI-compatible serial interface offers selectable CMOS or LVDS I/O modes via the CMOS/LVDS pin, with skew-matched CLKOUT outputs for deterministic timing at FPGA/CPLD receivers. The device includes dedicated nap and sleep modes reducing total current to ≤5 µA, and integrates two independent low-drift (≤20 ppm/°C) 4.096 V reference buffers-REFOUT1 and REFOUT2-with individual return pins (REFRTN1, REFRTN2) and disable control via REFINT.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees full-scale quantization into 65,536 discrete levels with no missing codes across full temperature range. |
| Sampling Rate | 5 Msps per channel - enables real-time capture of signals up to 2.2 MHz with 3 ns transient response and 1 ps RMS aperture jitter. |
| INL | ±4 LSB typical - ensures monotonicity and <0.1% full-scale linearity error for precision closed-loop control feedback. |
| SNR | 81 dB typical at fIN = 2.2 MHz - delivers >13.2 effective number of bits (ENOB) for high-fidelity signal reconstruction. |
| Reference | Internal 4.096 V ±0.2% buffered output - eliminates need for external reference IC and reduces BOM count 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. |
| Power | 40 mW/channel at 5 Msps - enables thermally constrained applications such as embedded motor drives and optical transceivers. |
Pinout & Package
Package: 28-lead (4 mm × 5 mm) plastic QFN with exposed thermal pad (Pin 29 = GND). Requires soldering of exposed pad to PCB ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pins 1, 8) | Analog power supply | Must be bypassed with 10 µF + 0.1 µF ceramics; pins shorted together and driven from same low-noise source. |
| AIN1+, AIN1– (Pins 7, 6) | Channel 1 differential analog input | Accepts ±4.096 V differential swing with 0 V to VDD common-mode range; no configuration required. |
| AIN2+, AIN2– (Pins 2, 3) | Channel 2 differential analog input | Independent of Channel 1; supports simultaneous sampling with matched acquisition timing. |
| CNV (Pin 9) | Conversion start trigger | Falling edge initiates hold-and-convert; requires low-jitter digital source referenced to OVDD. |
| SDO1+, SDO1– (Pins 15, 16) | Channel 1 serial data output | LVDS mode: differential output terminated with 100 Ω at receiver; CMOS mode: SDO1+ only active, logic level = OVDD. |
| CLKOUT+, CLKOUT– (Pins 17, 18) | Skew-matched output clock | Provides deterministic latch timing for SDO data at FPGA; phase-aligned to SCK with <3 ns delay variation. |
| REFOUT1, REFOUT2 (Pins 12, 26) | Reference buffer outputs | Nominally 4.096 V; each referenced to its own return pin (REFRTN1/REFRTN2); disabled when REFINT = GND. |
| CMOS/LVDS (Pin 25) | I/O interface mode select | GND = CMOS; OVDD = LVDS; floating = low-power LVDS - configures entire digital interface including SCK, SDO, CLKOUT. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent SAR cores | Enables simultaneous sampling of two high-bandwidth signals (e.g., phase currents in 3-phase motor control) without inter-channel crosstalk (<–130 dBc). |
| Wide input common-mode range | 0 V to VDD allows direct connection to op-amps, isolation amplifiers, or shunt-based current sensors without level-shifting circuitry. |
| Onboard 4.096 V reference buffers | Eliminates external reference IC, reduces layout sensitivity, and maintains <20 ppm/°C drift over –40°C to +125°C. |
| One-cycle conversion latency | Reduces control loop delay in real-time systems - output code available on SDO within one SCK period after CNV falling edge. |
| LVDS/CMOS interface select | Supports interoperability with legacy CMOS FPGAs and high-speed LVDS receivers while maintaining consistent timing margins. |
| Nap/sleep power states | Reduces idle power to ≤5 µA - critical for battery-backed or energy-harvesting remote data acquisition nodes. |
Applications
| High-Speed Motor Control | Automotive ADAS Sensor Interface |
|---|---|
Use Scenario: Real-time sampling of dual-phase current and voltage in field-oriented controlled (FOC) inverters for EV traction motors. IC Role / Device Role / Timing Role: Dual-channel ADC captures synchronized current feedback (AIN1±) and DC-link voltage (AIN2±) at 5 Msps with <500 ps inter-channel matching. Use Value: Enables precise torque ripple suppression and overcurrent protection with sub-100 ns timing resolution between channels. | Use Scenario: Digitizing radar IF signals and LiDAR time-of-flight waveforms in autonomous vehicle sensor fusion units. IC Role / Device Role / Timing Role: High-SNR ADC front-end for 77 GHz radar receivers, supporting 2.2 MHz bandwidth with 81 dB SNR and low THD. Use Value: Improves object detection range and angular resolution by preserving signal fidelity through the digitization stage. |
| Industrial Remote Data Acquisition | Optical Networking Transceiver Monitoring |
Use Scenario: Distributed monitoring of vibration, temperature, and pressure in oil & gas pipeline SCADA systems with extended temperature operation. IC Role / Device Role / Timing Role: Dual ADC acquires analog sensor outputs in harsh environments (–40°C to +125°C), leveraging internal reference and wide common-mode range. Use Value: Reduces calibration overhead and eliminates external reference drift compensation in unattended field deployments. | Use Scenario: Real-time monitoring of laser bias current, TEC voltage, and photodiode output in 400G/800G coherent optical modules. IC Role / Device Role / Timing Role: Precision ADC for closed-loop control of optical power and wavelength stability, operating from single 3.3 V rail. Use Value: Maintains BER compliance under thermal transients by delivering stable 16-bit measurements with <±4 LSB INL over full temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, 16-bit, high-speed SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7960BCPZ-RL7 | Single-channel, 18-bit, 5 Msps; no integrated reference; requires external 5 V reference; 32-lead LFCSP. | Higher resolution but lacks dual-channel capability and internal reference; needs additional reference IC and layout area. | Select when 18-bit resolution is mandatory and dual-channel sampling is not required. |
| ADS8924BRGER | Dual-channel, 16-bit, 2.5 Msps; integrated 2.5 V reference; CMOS-only interface; 32-lead QFN. | Half the throughput and lower SNR (78 dB); no LVDS option; limited to 105°C max operating temperature. | Select for cost-sensitive, lower-speed industrial PLCs where LVDS interface and 125°C rating are unnecessary. |
Compared with AD7960BCPZ-RL7 and ADS8924BRGER, the LTC2323HUFD-16#TRPBF uniquely combines dual-channel 5 Msps operation, integrated 4.096 V reference, LVDS/CMOS flexibility, and guaranteed –40°C to +125°C performance - making it optimal for compact, thermally demanding, high-throughput systems where channel synchronization and reference stability are critical.
Availability
LTC2323HUFD-16#TRPBF is available at Aetrix Electronics and suitable for high-speed motor control, automotive ADAS sensor interface, and industrial remote data acquisition requiring stable component supply across extended temperature ranges.
Supply support for LTC2323HUFD-16#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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC2323HUFD-16#TRPBF belongs to the Linear Technology high-speed precision SAR ADC product line, designed specifically for demanding data acquisition systems requiring wide dynamic range, low latency, and robust operation in extreme environments.
FAQ
What is the maximum operating temperature specification for the LTC2323HUFD-16#TRPBF?
The LTC2323HUFD-16#TRPBF is rated for operation from –40°C to +125°C, meeting the H-grade qualification per the manufacturer's order information table. This extended temperature range is validated across all electrical specifications including INL, SNR, and reference accuracy, making the LTC2323HUFD-16#TRPBF suitable for under-hood automotive and industrial edge computing applications.
Does the LTC2323HUFD-16#TRPBF require an external reference, or does it include an internal one?
The LTC2323HUFD-16#TRPBF includes two independent onboard 4.096 V temperature-compensated reference buffers (REFOUT1 and REFOUT2), each with ≤20 ppm/°C drift. These can be disabled via the REFINT pin to allow use of external references from 1.25 V to VDD, giving designers flexibility to optimize for accuracy, noise, or system-level reference sharing.
How does the LVDS interface mode affect power consumption of the LTC2323HUFD-16#TRPBF?
In LVDS mode, the LTC2323HUFD-16#TRPBF draws ~8 mA IOVDD current at 5 Msps (vs ~5 mA in CMOS mode), increasing total power by ~30 mW per channel. However, LVDS mode enables longer trace routing, reduced EMI, and deterministic timing at high clock frequencies - a trade-off justified in noise-sensitive or high-density PCB layouts.
Can the LTC2323HUFD-16#TRPBF perform simultaneous sampling on both channels?
Yes - the LTC2323HUFD-16#TRPBF supports true simultaneous sampling via independent sample-and-hold circuits for each channel. Its functional block diagram and timing diagrams confirm matched acquisition windows and <500 ps inter-channel aperture delay matching, essential for vector-controlled motor drives and phase-difference measurements.
What package type and lead-free status does the LTC2323HUFD-16#TRPBF use?
The LTC2323HUFD-16#TRPBF uses a 28-lead (4 mm × 5 mm) plastic QFN package with exposed thermal pad (UFD), and features 100% matte tin lead-free finish compliant with RoHS and JEDEC J-STD-020 reflow profiles. The tape-and-reel packaging (#TRPBF suffix) supports automated SMT assembly.
LTC2323HUFD-16#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 28-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 5M
- Number of Inputs:
- 2
- Input Type:
- Differential, Pseudo-Differential
- Data Interface:
- LVDS - Serial, Serial
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 2
- 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:
- 28-QFN (4x5)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2323HUFD-16#TRPBF FAQ
1.How can I place an order for LTC2323HUFD-16#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2323HUFD-16#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 LTC2323HUFD-16#TRPBF reliable?
The price and inventory of LTC2323HUFD-16#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2323HUFD-16#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2323HUFD-16#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2323HUFD-16#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2323HUFD-16#TRPBF?
LTC2323HUFD-16#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2323HUFD-16#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 LTC2323HUFD-16#TRPBF?
For technical support, including LTC2323HUFD-16#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2323HUFD-16#TRPBF requirements.
6.How does Aetrix verify that LTC2323HUFD-16#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2323HUFD-16#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 LTC2323HUFD-16#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2323HUFD-16#TRPBF?
All LTC2323HUFD-16#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2323HUFD-16#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 LTC2323HUFD-16#TRPBF part is unused and in its original packaging.
Return procedure for LTC2323HUFD-16#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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