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Analog Devices Inc. LTC2341HUH-16#TRPBF
- Part No.:
- LTC2341HUH-16#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
LTC2341HUH-16#TRPBF.pdf
- Description:
- IC ADC 16BIT SAR 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,073
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Product details
Overview
LTC2341HUH-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 supports both SPI CMOS (1.8–5V) and LVDS serial interfaces - ideal for high-precision industrial process control and medical imaging signal chains.
For engineers reviewing the LTC2341HUH-16#TRPBF datasheet, LTC2341HUH-16#TRPBF pinout, LTC2341HUH-16#TRPBF application, or LTC2341HUH-16#TRPBF equivalent, key selection considerations include guaranteed no-missing-codes at 16 bits, rail-to-rail input overdrive tolerance, 105dB CMRR at 200Hz, operation up to 125°C, and pin-selectable digital I/O mode (LVDS/CMOS).
Technical Context
The LTC2341HUH-16#TRPBF implements a true simultaneous sampling architecture using two independent sample-and-hold circuits feeding a shared 16-bit SAR core, enabling precise phase-coherent digitization of dual analog signals. Its SoftSpan™ input configuration logic allows real-time, conversion-by-conversion range selection per channel without reconfiguration latency.
It integrates a precision 2.048V bandgap reference (REFIN) and a buffered 4.096V master reference (REFBUF), with internal reference temperature coefficient ≤20ppm/°C and full-scale error drift ≤2.5ppm/°C. The device supports internal conversion clocking with zero cycle latency and delivers 74mW typical power dissipation at 666ksps with both channels active.
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 simultaneous) - enables real-time capture of signals up to ~22MHz –3dB bandwidth. |
| INL | ±1.25LSB max - ensures monotonicity and <0.002% absolute linearity error in critical closed-loop control applications. |
| SNR | 93.4dB typical (fIN=2kHz, ±4.096V range) - supports >15.5 effective number of bits (ENOB) for high-fidelity data acquisition. |
| CMRR | 105dB typical at 200Hz - rejects common-mode noise from motor drives, power supplies, or long sensor cables. |
| Operating Temp | –40°C to +125°C - qualified for harsh industrial and automotive under-hood environments. |
| Power Dissipation | 74mW typical (CMOS mode, 2 ch, 666ksps) - enables dense PCB layouts without forced cooling in PLC modules. |
Pinout & Package
32-lead (5mm × 5mm) QFN package (UH grade) 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 management.
| 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 to VDD common-mode range and rail-to-rail overdrive tolerance - simplifies front-end driver design. |
| REFIN (Pin 10) | Bandgap reference output / external reference input | Nominally 2.048V; accepts 1.25–2.2V 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 2.5–5V external reference when buffer disabled. |
| LVDS/CMOS (Pin 14) | I/O interface mode select | Tie to OVDD for LVDS (2.375–5.25V), tie to GND for CMOS (1.71–5.25V) - enables flexible host controller interfacing without level shifters. |
| CNV (Pin 15) | Conversion start trigger | Rising-edge initiated; not gated by CS - allows deterministic timing synchronization across multiple ADCs in distributed systems. |
| PD (Pin 13) | Power-down control | High-active; powers down analog and digital blocks; double pulse triggers global reset - supports low-power sleep modes in battery-backed DAQ. |
Key Features
| Feature | Design Value |
|---|---|
| Per-channel SoftSpan™ input ranges | Independent ±4.096V, 0–4.096V, ±2.048V, or 0–2.048V selection per conversion - eliminates external gain-switching circuitry in multi-sensor systems. |
| Simultaneous sampling | Two fully independent S/H circuits ensure phase coherence between channels - essential for motor current/voltage vector analysis and vibration monitoring. |
| 105dB CMRR at 200Hz | Rejects noise from shared power rails or EMI-coupled sources - maintains accuracy in electrically noisy factory floors. |
| Integrated 4.096V reference buffer | Low-drift (≤20ppm/°C), low-noise output with 47µF bypass - removes need for external reference IC and reduces BOM count in space-constrained modules. |
| Pin-selectable LVDS/CMOS interface | No hardware redesign needed when migrating between FPGA (LVDS) and microcontroller (CMOS) hosts - accelerates platform reuse across product generations. |
Applications
| Programmable Logic Controllers | Industrial Process Control |
|---|---|
Use Scenario: High-speed analog input modules acquiring current/voltage feedback from servo drives and pressure transducers in real-time control loops. IC Role / Device Role / Timing Role: Dual-channel simultaneous ADC providing synchronized, high-accuracy digitization of motor phase currents and bus voltage for field-oriented control (FOC). Use Value: ±1.25LSB INL and 93.4dB SNR ensure sub-0.1% torque ripple control; 125°C rating enables direct mounting on drive PCBs near heat sinks. | Use Scenario: Distributed I/O systems monitoring temperature, flow, and level sensors across chemical plant pipelines. IC Role / Device Role / Timing Role: Precision ADC digitizing 4–20mA loop outputs and thermocouple signals with galvanically isolated front ends. Use Value: 105dB CMRR suppresses common-mode noise from variable-frequency drives; SoftSpan™ accommodates diverse sensor output ranges without external scaling resistors. |
| Medical Imaging | High Speed Data Acquisition |
Use Scenario: Ultrasound beamformer front-end digitizing echo return signals from phased-array transducers. IC Role / Device Role / Timing Role: Dual-channel ADC capturing time-aligned RF echo samples for digital beamforming and envelope detection. Use Value: Simultaneous sampling preserves inter-channel phase integrity; 22MHz –3dB input bandwidth supports >10MHz ultrasound carrier frequencies. | Use Scenario: Portable oscilloscope or spectrum analyzer capturing transient waveforms in R&D labs and field service tools. IC Role / Device Role / Timing Role: High-fidelity ADC enabling 666ksps dual-channel waveform capture with deep memory buffering. Use Value: No missing codes and 93.4dB SNR ensure accurate amplitude and harmonic analysis; LVDS interface supports high-speed streaming to FPGA-based decimation engines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7606C-16 | 8-channel, 16-bit, ±10V/±5V fixed input ranges; uses parallel interface; 200ksps/ch; 100dB CMRR; requires external reference. | Better suited for multi-channel, lower-speed, cost-sensitive industrial DAQ where channel count >2 and parallel bus is preferred. | Select AD7606C-16 when needing ≥4 analog inputs per chip and simpler firmware integration via parallel interface - but expect higher power (120mW) and reduced SNR (90.5dB). |
| ADS8688IDBT | 8-channel, 16-bit, SPI interface only; 500ksps/ch; ±10.24V/0–10.24V ranges; integrated PGA; 92dB SNR; 95dB CMRR. | Optimized for sensor signal conditioning with on-chip programmable gain amplifier - ideal for low-level thermistor or strain gauge inputs. | Choose ADS8688IDBT when front-end amplification is required and channel density is prioritized over ultimate SNR or simultaneous sampling fidelity. |
Compared with AD7606C-16 and ADS8688IDBT, the LTC2341HUH-16#TRPBF uniquely delivers dual-channel simultaneous sampling at 666ksps with per-channel SoftSpan™ flexibility and superior 93.4dB SNR - making it optimal for phase-critical, high-dynamic-range applications where timing coherence and noise floor are paramount.
Availability
LTC2341HUH-16#TRPBF is available at Aetrix Electronics and suitable for industrial process control, medical imaging equipment, and high-speed data acquisition systems requiring stable component supply, extended temperature operation, and long-term lifecycle continuity.
Supply support for LTC2341HUH-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, multi-channel data acquisition in thermally demanding environments - emphasizing simultaneous sampling integrity, flexible input scaling, and robust operation from –40°C to +125°C.
FAQ
What is the maximum sampling rate of the LTC2341HUH-16#TRPBF when both channels are enabled?
The LTC2341HUH-16#TRPBF achieves 666ksps per channel with both channels simultaneously enabled. When only one channel is active, the sampling rate increases to 1000ksps. This is enabled by its internal conversion clock and zero-latency architecture - no pipeline delay or dead time between conversions. The device maintains full 16-bit performance and specified SNR/INL across this entire rate range.
Does the LTC2341HUH-16#TRPBF require an external reference, or does it include an integrated reference solution?
The LTC2341HUH-16#TRPBF includes a complete integrated reference solution: a 2.048V bandgap reference (REFIN) and a buffered 4.096V master reference (REFBUF). The internal reference is factory trimmed and offers ≤20ppm/°C temperature coefficient. REFIN can be overdriven with an external 1.25–2.2V reference for improved accuracy, and REFBUF can be overdriven with 2.5–5V when its internal buffer is disabled - giving full flexibility for ratiometric or precision metrology use cases.
How does the SoftSpan™ feature work on the LTC2341HUH-16#TRPBF, and what input ranges does it support?
The SoftSpan™ feature on the LTC2341HUH-16#TRPBF allows per-channel, conversion-by-conversion selection of four differential input ranges: ±4.096V, 0–4.096V, ±2.048V, and 0–2.048V. This is implemented via dedicated configuration bits in the SPI command word - no hardware changes or settling delays required. Each channel operates independently, enabling mixed-range acquisition (e.g., Channel 0 measuring ±10V motor voltage while Channel 1 reads 0–5V temperature sensor output) within the same frame.
What digital interface options does the LTC2341HUH-16#TRPBF support, and how are they selected?
The LTC2341HUH-16#TRPBF supports both SPI CMOS (1.71–5.25V) and LVDS (2.375–5.25V) serial interfaces. Interface mode is selected by the LVDS/CMOS pin (Pin 14): tie to GND for CMOS, tie to OVDD for LVDS. CMOS mode supports 1- or 2-lane data output to optimize bus width; LVDS mode provides noise-immune differential signaling for longer traces or high-EMI environments - all without changing firmware or layout.
Is the LTC2341HUH-16#TRPBF qualified for operation at 125°C, and what packaging supports this rating?
Yes, the LTC2341HUH-16#TRPBF is explicitly rated for continuous operation from –40°C to +125°C (H-grade). This qualification is enabled by its 32-lead 5mm × 5mm QFN (UH package) with exposed thermal pad (Pin 33 = GND), which provides low thermal resistance to the PCB. The datasheet specifies guaranteed performance for all key parameters - including INL, SNR, and CMRR - across this full temperature range, making it suitable for under-hood automotive, downhole oil/gas, and industrial motor drive applications.
LTC2341HUH-16#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- 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:
- -40°C ~ 125°C
- Supplier Device Package:
- 32-QFN (5x5)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2341HUH-16#TRPBF FAQ
1.How can I place an order for LTC2341HUH-16#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2341HUH-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 LTC2341HUH-16#TRPBF reliable?
The price and inventory of LTC2341HUH-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 LTC2341HUH-16#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2341HUH-16#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2341HUH-16#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2341HUH-16#TRPBF?
LTC2341HUH-16#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2341HUH-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 LTC2341HUH-16#TRPBF?
For technical support, including LTC2341HUH-16#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2341HUH-16#TRPBF requirements.
6.How does Aetrix verify that LTC2341HUH-16#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2341HUH-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 LTC2341HUH-16#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2341HUH-16#TRPBF?
All LTC2341HUH-16#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2341HUH-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 LTC2341HUH-16#TRPBF part is unused and in its original packaging.
Return procedure for LTC2341HUH-16#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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