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Analog Devices Inc. LTC2341CUH-16#TRPBF
- Part No.:
- LTC2341CUH-16#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
LTC2341CUH-16#TRPBF.pdf
- Description:
- IC ADC 16BIT SAR 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,583
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Product details
Overview
LTC2341CUH-16#TRPBF 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™ programmable input ranges (±4.096V, 0–4.096V, ±2.048V, 0–2.048V), integrated 4.096V reference buffer, and pin-selectable CMOS/LVDS serial interface - enabling high-precision data acquisition in industrial PLCs and medical imaging front-ends.
For engineers reviewing the LTC2341CUH-16#TRPBF datasheet, LTC2341CUH-16#TRPBF pinout, LTC2341CUH-16#TRPBF application, or LTC2341CUH-16#TRPBF equivalent, key selection criteria include guaranteed no-missing-codes at 16 bits, rail-to-rail input overdrive tolerance, 105dB CMRR at 200Hz, operation up to 125°C (H-grade variant), and support for independent per-channel range configuration without external components.
Technical Context
The LTC2341CUH-16#TRPBF implements a successive approximation register architecture with two independent sample-and-hold circuits, enabling true simultaneous sampling across both channels. Its analog front-end supports fully differential, bipolar, or unipolar drive modes with 0V to VDD common-mode range and 105dB CMRR - eliminating need for external level-shifting or gain stages in mixed-signal sensor interfaces.
Digital interface flexibility includes pin-selectable LVDS or SPI CMOS (1.8V–5V) I/O, with configurable one- or two-lane CMOS output to balance bus width and throughput. Internal conversion clock eliminates latency cycles, and power-down mode reduces current to 65µA (C/I-grade) or 500µA (H-grade), supporting low-duty-cycle acquisition systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees full 65,536-code resolution with no missing codes across temperature. |
| Sampling Rate | 666ksps per channel (dual-channel); 1000ksps when single channel enabled - enables real-time capture of signals up to ~22MHz bandwidth. |
| INL | ±1.25LSB max - ensures accurate end-point linearity critical for closed-loop control and calibration-sensitive instrumentation. |
| SNR | 93.4dB typical (±4.096V range, fIN=2kHz) - delivers >15.5 effective bits for high-fidelity signal reconstruction. |
| CMRR | 105dB typical at 200Hz - rejects common-mode noise from motor drives or long sensor cables without external filtering. |
| Power Dissipation | 74mW typical (CMOS mode, 2-ch, 666ksps) - enables thermally constrained PCB layouts in dense industrial modules. |
| Operating Temp | 0°C to 70°C (C-grade) - validated for commercial/industrial environments where extended temperature is not required. |
Pinout & Package
32-lead (5mm × 5mm) QFN package (UH) with exposed thermal pad (Pin 33 = GND). All GND pins (3,4,5,6,9,11,20,29,31,32,33) must be soldered to a solid ground plane for optimal noise performance and thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN0+, IN0– / IN1+, IN1– (Pins 8/7, 2/1) | Differential analog inputs, Channel 0 and 1 | Simultaneously sampled; support 0V–VDD common-mode range and ±VREFBUF full-scale differential swing - simplifies direct connection to transducer outputs. |
| REFIN (Pin 10) | Internal bandgap reference output / external reference input | Nominally 2.048V; accepts 1.25V–2.2V external reference to improve accuracy or enable ratiometric measurement. |
| REFBUF (Pin 12) | Internal reference buffer output | Nominally 4.096V (2×REFIN); bypassed with 47µF ceramic capacitor; can be overdriven with 2.5V–5V external reference when buffer disabled. |
| LVDS/CMOS (Pin 14) | I/O interface mode select | Tie to OVDD for LVDS; tie to GND for CMOS - enables hardware-configurable interface without firmware changes. |
| CNV (Pin 15) | Conversion start trigger | Rising-edge initiated; asynchronous to CS - allows deterministic timing control independent of serial communication state. |
| PD (Pin 13) | Power-down control | High-active; powers down core and reference buffer; double pulse triggers global reset - supports robust low-power sequencing. |
Key Features
| Feature | Design Value |
|---|---|
| Per-channel SoftSpan™ input range selection | Each channel independently configured for ±4.096V, 0–4.096V, ±2.048V, or 0–2.048V on a conversion-by-conversion basis - eliminates need for external programmable gain amplifiers. |
| Integrated 4.096V reference buffer | Low-drift (5ppm/°C), buffered output with 47µF bypass - removes requirement for external precision reference and buffer op-amp. |
| Rail-to-rail input overdrive tolerance | Withstands ±VDD differential overvoltage without damage or conversion corruption - protects against sensor fault conditions in harsh industrial environments. |
| 105dB CMRR at 200Hz | Rejects common-mode interference from AC mains, motor drives, or EMI without external common-mode chokes or matched resistor networks. |
| Guaranteed operation to 125°C (H-grade variants) | Validated thermal performance up to junction temperature 150°C - suitable for under-hood automotive or high-temperature industrial enclosures. |
Applications
| Programmable Logic Controllers | Industrial Process Control |
|---|---|
Use Scenario: High-speed analog input module acquiring voltage/current signals from pressure, flow, and temperature transmitters in factory automation cabinets. IC Role / Device Role / Timing Role: Dual-channel simultaneous sampling ADC digitizing 4–20mA loop outputs and ±10V sensor signals with synchronized timestamping for multi-variable control algorithms. Use Value: ±1.25LSB INL and 93.4dB SNR ensure <0.01% measurement uncertainty across 16-bit range, meeting SIL-2 functional safety requirements for closed-loop feedback. | Use Scenario: Distributed I/O node in oil & gas pipeline monitoring system measuring differential pressure across orifice plates and valve position feedback. IC Role / Device Role / Timing Role: Precision ADC capturing synchronized differential inputs from strain-gauge bridges and RTD interfaces while rejecting 50/60Hz common-mode noise from nearby power lines. Use Value: 105dB CMRR at 200Hz and 0V–5V common-mode range eliminate need for external instrumentation amplifiers, reducing BOM count and board area by 30%. |
| Medical Imaging Signal Chain | High-Speed Data Acquisition |
Use Scenario: Front-end digitization of ultrasound receive beamformer signals in portable diagnostic equipment requiring low power and compact form factor. IC Role / Device Role / Timing Role: Simultaneous sampling ADC converting echo return signals from multiple transducer elements with precise inter-channel phase alignment for digital beamforming. Use Value: Aperture delay matching of 150ps and <1ns aperture jitter preserve time-of-flight accuracy critical for sub-millimeter spatial resolution in B-mode imaging. | Use Scenario: Modular test instrument capturing transient waveforms from power electronics switching events (e.g., SiC MOSFET gate drive, inverter output). IC Role / Device Role / Timing Role: Dual-channel ADC sampling voltage and current simultaneously to compute real-time power, efficiency, and harmonic distortion metrics. Use Value: –114dB THD at 2kHz and 115dB SFDR enable accurate spectral analysis of fast-switching waveforms without post-acquisition correction. |
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; internal reference only (4.096V); no LVDS option; 1MSPS/ch max; requires external oversampling for >90dB SNR | Better suited for multi-channel DAQ systems needing >4 channels; lacks per-channel SoftSpan flexibility | Select when channel count >2 is required and LVDS interface is unnecessary. |
| ADS8688 | 8-channel, SPI-only (CMOS); integrated PGA (±10.24V max input); 500ksps/ch; 91.5dB SNR; no simultaneous sampling - uses multiplexed architecture | Preferred for cost-sensitive, lower-speed applications with variable sensor output ranges requiring programmable gain | Select when input signal conditioning (gain/attenuation) is needed before digitization and simultaneous sampling is not mandatory. |
Compared with AD7606C-16 and ADS8688, the LTC2341CUH-16#TRPBF uniquely combines dual-channel simultaneous sampling, per-channel SoftSpan range selection, LVDS/CMOS interface flexibility, and 93.4dB SNR in a 32-pin QFN - making it optimal for space-constrained, high-fidelity dual-sensor acquisition where timing coherence and dynamic range are critical.
Availability
LTC2341CUH-16#TRPBF is available at Aetrix Electronics and suitable for industrial process control, programmable logic controllers, and medical imaging systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LTC2341CUH-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, Inc. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.
The LTC2341 family was designed specifically for high-accuracy, low-latency, dual-channel data acquisition in demanding industrial and medical applications - emphasizing simultaneous sampling integrity, flexible input range configuration, and robust noise immunity without external support circuitry.
FAQ
What is the maximum sampling rate of the LTC2341CUH-16#TRPBF in dual-channel mode?
The LTC2341CUH-16#TRPBF achieves 666ksps per channel in dual-channel simultaneous sampling mode. When only one channel is enabled, the maximum sampling rate increases to 1000ksps. This is enabled by the internal conversion clock and lack of cycle latency - allowing deterministic timing for real-time control loops and waveform capture in the LTC2341CUH-16#TRPBF.
Does the LTC2341CUH-16#TRPBF require an external reference voltage?
No, the LTC2341CUH-16#TRPBF includes an integrated 2.048V bandgap reference and a 4.096V reference buffer (REFBUF pin), eliminating the need for an external reference in most applications. The REFIN pin can be overdriven with a 1.25V–2.2V external reference for improved accuracy or ratiometric operation, and REFBUF can be overdriven with 2.5V–5V when the internal buffer is disabled - all supported natively by the LTC2341CUH-16#TRPBF.
How does the SoftSpan™ feature work on the LTC2341CUH-16#TRPBF?
The SoftSpan™ feature on the LTC2341CUH-16#TRPBF allows each channel to be independently configured on a per-conversion basis for four input ranges: ±4.096V, 0–4.096V, ±2.048V, or 0–2.048V - selected via SPI command. This eliminates external gain-switching circuitry and enables adaptive range selection during runtime, such as auto-ranging in multimeter or oscilloscope front-ends using the LTC2341CUH-16#TRPBF.
What is the operating temperature range of the LTC2341CUH-16#TRPBF?
The LTC2341CUH-16#TRPBF is rated for 0°C to 70°C (C-grade), as indicated by the "C" in the part number. Other variants include the I-grade (–40°C to +85°C) and H-grade (–40°C to +125°C). Thermal performance is validated up to TJ = 150°C, and the device maintains specifications including ±1.25LSB INL and 93.4dB SNR across its full operating range - confirmed for the LTC2341CUH-16#TRPBF.
Can the LTC2341CUH-16#TRPBF interface with LVDS and CMOS logic levels simultaneously?
No - the LTC2341CUH-16#TRPBF supports either LVDS or CMOS serial I/O, selected at power-up via the LVDS/CMOS pin (Pin 14): tied to OVDD for LVDS mode, or to GND for CMOS mode. Both modes support SPI-compatible timing but differ in voltage levels, termination, and drive strength. The choice is hardware-configured and cannot be changed dynamically - a fixed interface decision for the LTC2341CUH-16#TRPBF.
LTC2341CUH-16#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- SoftSpan™
- Package/Case:
- 32-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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:
- 0°C ~ 70°C
- Supplier Device Package:
- 32-QFN (5x5)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2341CUH-16#TRPBF FAQ
1.How can I place an order for LTC2341CUH-16#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2341CUH-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 LTC2341CUH-16#TRPBF reliable?
The price and inventory of LTC2341CUH-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 LTC2341CUH-16#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2341CUH-16#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2341CUH-16#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2341CUH-16#TRPBF?
LTC2341CUH-16#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2341CUH-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 LTC2341CUH-16#TRPBF?
For technical support, including LTC2341CUH-16#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2341CUH-16#TRPBF requirements.
6.How does Aetrix verify that LTC2341CUH-16#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2341CUH-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 LTC2341CUH-16#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2341CUH-16#TRPBF?
All LTC2341CUH-16#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2341CUH-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 LTC2341CUH-16#TRPBF part is unused and in its original packaging.
Return procedure for LTC2341CUH-16#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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