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Analog Devices Inc. LTC2341HUH-16#PBF
- Part No.:
- LTC2341HUH-16#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
LTC2341HUH-16#PBF.pdf
- Description:
- IC ADC 16BIT SAR 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,194
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Product details
Overview
LTC2341HUH-16#PBF from Analog Devices (formerly Linear Technology) is a dual-channel, 16-bit, simultaneous-sampling SAR ADC with differential wide common-mode inputs, ±1.25LSB INL, 93.4dB SNR, and 666ksps per channel throughput. It features per-channel SoftSpan™ configurable input ranges (±4.096V, 0–4.096V, ±2.048V, 0–2.048V), integrated 4.096V reference buffer, and operates up to 125°C - ideal for high-precision industrial process control and medical imaging signal chains.
For engineers reviewing the LTC2341HUH-16#PBF datasheet, LTC2341HUH-16#PBF pinout, LTC2341HUH-16#PBF application, or LTC2341HUH-16#PBF equivalent, key selection criteria include guaranteed no-missing-codes at 16 bits, rail-to-rail input overdrive tolerance, CMOS/LVDS interface flexibility, 105dB CMRR at 200Hz, and H-grade extended temperature operation (–40°C to +125°C).
Technical Context
The LTC2341HUH-16#PBF implements a successive approximation register architecture with two independent sample-and-hold circuits enabling true simultaneous sampling across both channels. Its SoftSpan™ digital configuration allows per-conversion range selection without hardware reconfiguration.
It supports dual serial interfaces: pin-selectable CMOS (1.8V–5V I/O) with 1- or 2-lane output, and LVDS with differential clock/data pairs. Internal conversion clock eliminates cycle latency, and the integrated reference buffer delivers 4.096V with ±5ppm/°C drift and 20kΩ output impedance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees full 65,536-code resolution with no missing codes across full temperature range. |
| Sampling Rate | 666ksps per channel (dual-channel mode) - enables real-time capture of signals up to ~22MHz bandwidth (–3dB). |
| INL | ±1.25LSB max - ensures monotonicity and <0.002% end-point linearity error in precision measurement systems. |
| SNR | 93.4dB typical (fIN = 2kHz, ±4.096V range) - supports >15.5 effective number of bits (ENOB) for high-fidelity digitization. |
| CMRR | 105dB typical at 200Hz - rejects common-mode noise from sensor bridges, motor drives, or long-line transducers. |
| Operating Temp | –40°C to +125°C - qualified for harsh environments including downhole tools, engine control units, and industrial PLCs. |
| Power Dissipation | 74mW typical (CMOS mode, 2 ch, 666ksps) - enables thermally constrained designs without forced cooling. |
Pinout & Package
Package: 32-lead (5mm × 5mm) plastic QFN (UH package); exposed pad (Pin 33) must be soldered to PCB ground plane for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN0+, IN0– | Differential analog input, Channel 0 | Accepts ±4.096V, 0–4.096V, ±2.048V, or 0–2.048V signals with 0V–5V common-mode range and rail-to-rail overdrive tolerance. |
| IN1+, IN1– | Differential analog input, Channel 1 | Independent simultaneous sampling path; identical input specs to Channel 0 for synchronized multi-sensor acquisition. |
| REFIN | Internal bandgap reference output / external reference input | Outputs 2.048V nominal; accepts 1.25V–2.2V external reference to calibrate VREFBUF; bypass with 0.1µF ceramic capacitor. |
| REFBUF | Reference buffer output | Delivers 4.096V (2×REFIN); can be overdriven with 2.5V–5V external reference when REFIN grounded; bypass with 47µF ceramic capacitor. |
| LVDS/CMOS | I/O interface mode select | Tie to OVDD for LVDS (2.375–5.25V), tie to GND for CMOS (1.71–5.25V); determines logic family and termination requirements. |
| CNV | Conversion start trigger | Rising-edge initiates simultaneous sampling and conversion; not gated by CS - supports autonomous timing control. |
| PD | Power-down enable | High-active; powers down core circuitry to 0.33mW (H-grade); double pulse triggers global reset equivalent to POR. |
| SDO+, SDO– / SDO0, SDO1 | Serial data outputs | Differential LVDS or single-ended CMOS outputs; dual-lane CMOS option reduces bus width while maintaining throughput. |
Key Features
| Feature | Design Value |
|---|---|
| Per-channel SoftSpan™ configuration | Enables independent, conversion-by-conversion selection of ±4.096V, 0–4.096V, ±2.048V, or 0–2.048V input ranges - eliminates external gain-switching circuitry. |
| Simultaneous sampling | Two independent S/H circuits capture IN0 and IN1 at identical instants - critical for phase-coherent multi-channel analysis (e.g., motor current/voltage). |
| Integrated 4.096V reference buffer | Eliminates need for external precision reference IC; 5ppm/°C tempco and 20kΩ output impedance simplify layout and reduce BOM count. |
| 105dB CMRR at 200Hz | Rejects common-mode interference from noisy industrial environments without requiring matched external resistor networks. |
| Rail-to-rail input overdrive tolerance | Withstands ±5V differential overvoltage on IN+/IN– without damage or conversion corruption - enhances system robustness against transient faults. |
Applications
| Programmable Logic Controllers | Industrial Process Control |
|---|---|
Use Scenario: High-speed analog input modules acquiring voltage/current signals from multiple field sensors (e.g., 4–20mA transmitters, RTDs) in real time. IC Role / Device Role / Timing Role: Dual-channel simultaneous ADC digitizing two independent process variables (e.g., pressure + temperature) with sub-microsecond inter-channel skew. Use Value: Eliminates phase error between correlated measurements; ±1.25LSB INL ensures accurate PID loop feedback under varying load conditions. | Use Scenario: Distributed I/O systems monitoring flow, level, and valve position in chemical plants with ambient temperatures up to 125°C. IC Role / Device Role / Timing Role: Precision front-end converter operating in extended temperature grade (H), interfacing directly to isolated sensor signal conditioners. Use Value: Guaranteed 16-bit no-missing-codes and 105dB CMRR maintain accuracy despite EMI from variable-frequency drives and switching power supplies. |
| Medical Imaging | High Speed Data Acquisition |
Use Scenario: Ultrasound beamformer front-ends digitizing echo return signals from phased-array transducers. IC Role / Device Role / Timing Role: Simultaneous sampling ADC capturing I/Q channel pairs with matched aperture delay (<150ps) and low jitter (3ps RMS). Use Value: 93.4dB SNR and –114dB THD preserve dynamic range for detecting low-amplitude tissue reflections amid high-frequency carrier noise. | Use Scenario: Portable oscilloscope or spectrum analyzer capturing transient waveforms in R&D labs and field service applications. IC Role / Device Role / Timing Role: Dual-channel ADC with LVDS interface driving FPGA-based decimation and FFT engines at 666ksps sustained rate. Use Value: Pin-selectable LVDS/CMOS allows direct FPGA connection without level-shifting; internal clock removes external timing complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel 16-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7606C-16 | 8-channel, parallel/serial interface; ±2.5V/±5V input ranges only; no SoftSpan™; 220ksps/ch max | Higher channel count but lower speed and fixed ranges - better for multi-sensor monitoring, not high-speed dual-channel sync. | Select AD7606C-16 when >2 channels are needed and SoftSpan™ configurability is unnecessary. |
| ADS8688 | 8-channel, SPI-only; integrated PGA (±10.24V max); 500ksps/ch; no LVDS; 100°C max operating temp | Includes programmable gain amplifier for direct sensor interfacing but lacks simultaneous sampling and extended temperature rating. | Select ADS8688 when sensor-level gain scaling is required and 125°C operation is not mandatory. |
Compared with AD7606C-16 and ADS8688, the LTC2341HUH-16#PBF uniquely combines dual-channel simultaneous sampling, per-channel SoftSpan™ range flexibility, LVDS/CMOS interface choice, and H-grade 125°C operation - making it optimal for thermally demanding, phase-critical dual-signal acquisition.
Availability
LTC2341HUH-16#PBF is available at Aetrix Electronics and suitable for industrial process control, medical imaging equipment, and high-speed data acquisition systems requiring stable component supply, long-term lifecycle support, and guaranteed extended-temperature performance.
Supply support for LTC2341HUH-16#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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies.
The LTC2341-16 product line was designed specifically for high-accuracy, multi-channel data acquisition in harsh industrial and medical environments where simultaneous sampling, wide input flexibility, and extended temperature reliability are essential.
FAQ
What is the maximum sampling rate of the LTC2341HUH-16#PBF in dual-channel mode?
The LTC2341HUH-16#PBF achieves 666ksps per channel when both channels are enabled. In single-channel mode, throughput increases to 1000ksps. This is enabled by an internal conversion clock with no cycle latency, and timing is validated across the full –40°C to +125°C operating range for the H-grade variant.
Does the LTC2341HUH-16#PBF require an external reference voltage?
No - the LTC2341HUH-16#PBF includes an internal 2.048V bandgap reference and a buffered 4.096V output (REFBUF). The internal reference is fully functional out-of-the-box; however, REFIN can accept 1.25V–2.2V external references for improved accuracy, and REFBUF can be overdriven with 2.5V–5V external sources when the internal buffer is disabled.
How does the SoftSpan™ feature work on the LTC2341HUH-16#PBF?
The SoftSpan™ feature on the LTC2341HUH-16#PBF allows each channel to be independently configured - on a per-conversion basis - for one of eight input ranges: ±4.096V, 0–4.096V, ±2.048V, 0–2.048V, ±5V, 0–5V, ±2.5V, or 0–2.5V. Configuration is done via SPI command, eliminating hardware changes and enabling adaptive signal conditioning in real time.
What is the significance of the "HUH" suffix in LTC2341HUH-16#PBF?
The "HUH" suffix identifies the package (32-lead 5mm × 5mm QFN) and temperature grade: "H" denotes the extended industrial grade with guaranteed operation from –40°C to +125°C. The "UH" package code confirms the exposed-pad QFN construction optimized for thermal dissipation and high-frequency performance.
Can the LTC2341HUH-16#PBF interface directly with an FPGA using LVDS?
Yes - the LTC2341HUH-16#PBF supports native LVDS serial I/O when the LVDS/CMOS pin (Pin 14) is tied to OVDD. It provides differential SDO+/SDO– and SCKO+/SCKO– outputs compliant with ANSI TIA/EIA-644-A, supporting data rates up to 100MHz with 350mV differential swing and 1.2V common-mode voltage - ideal for direct FPGA connectivity without level shifters.
LTC2341HUH-16#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 32-WFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 666k
- Number of Inputs:
- 2
- Input Type:
- Differential
- Data Interface:
- LVDS - Serial, SPI
- Configuration:
- S/H-MUX-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 5V
- Voltage - Supply, Digital:
- 5V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 32-QFN (5x5)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2341HUH-16#PBF FAQ
1.How can I place an order for LTC2341HUH-16#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2341HUH-16#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 LTC2341HUH-16#PBF reliable?
The price and inventory of LTC2341HUH-16#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2341HUH-16#PBF is usually 5 days.
3.What payment methods are accepted for LTC2341HUH-16#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2341HUH-16#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2341HUH-16#PBF?
LTC2341HUH-16#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2341HUH-16#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 LTC2341HUH-16#PBF?
For technical support, including LTC2341HUH-16#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2341HUH-16#PBF requirements.
6.How does Aetrix verify that LTC2341HUH-16#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2341HUH-16#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 LTC2341HUH-16#PBF meets industry standards.
7.What is the process for return or replacement of LTC2341HUH-16#PBF?
All LTC2341HUH-16#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2341HUH-16#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 LTC2341HUH-16#PBF part is unused and in its original packaging.
Return procedure for LTC2341HUH-16#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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