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Analog Devices Inc. LTC2344HUH-16#TRPBF
- Part No.:
- LTC2344HUH-16#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
LTC2344HUH-16#TRPBF.pdf
- Description:
- IC ADC 16BIT SAR 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,033
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Product details
Overview
LTC2344HUH-16#TRPBF from Analog Devices is a 16-bit, quad-channel simultaneous-sampling SAR ADC with differential wide common-mode inputs, ±1.25LSB INL (max), 93.4dB SNR (typ), and 400ksps per channel throughput. It features per-channel SoftSpan configuration (±4.096V, 0–4.096V, ±2.048V, or 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 LTC2344HUH-16#TRPBF datasheet, LTC2344HUH-16#TRPBF pinout, LTC2344HUH-16#TRPBF application, or LTC2344HUH-16#TRPBF equivalent, key selection considerations include guaranteed no-missing-codes at 16 bits, 102dB CMRR at 200Hz, rail-to-rail input overdrive tolerance, SPI CMOS/LVDS dual-interface support, and H-grade extended temperature operation.
Technical Context
The LTC2344HUH-16#TRPBF implements a successive approximation register architecture with internal conversion clock and zero-cycle latency. Its analog front-end supports independent per-channel SoftSpan range selection via digital configuration, enabling mixed bipolar/unipolar signal acquisition across four simultaneously sampled differential inputs.
It integrates a precision 2× gain reference buffer (VREFBUF = 2 × VREFIN) with 5ppm/°C max tempco and supports both CMOS (1.8V–5V) and LVDS serial interfaces - with selectable 1–4 data lanes in CMOS mode and full-duplex LVDS timing compliance per JEDEC standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit, guaranteed no missing codes - ensures full dynamic range utilization without code gaps in critical measurement systems. |
| Sampling Rate | 400ksps per channel (all 4 enabled) - enables real-time capture of fast transients in multi-sensor monitoring applications. |
| INL | ±1.25LSB maximum - maintains end-point accuracy for calibration-sensitive instrumentation and closed-loop control. |
| SNR | 93.4dB typical at 2kHz - delivers >15.5 effective number of bits (ENOB) for high-fidelity signal digitization. |
| CMRR | 102dB typical at 200Hz - rejects common-mode noise from motor drives or long sensor cables in harsh industrial environments. |
| Operating Temp | –40°C to +125°C - qualified for under-hood automotive sensing, downhole oil/gas tools, and high-temperature factory automation. |
| Power Dissipation | 81mW typical (CMOS mode, 4 channels) - balances performance and thermal management in space-constrained embedded designs. |
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 integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN0+ / IN0– to IN3+ / IN3– (Pins 1–8) | Differential analog inputs, Channels 0–3 | Simultaneously sample VIN+ – VIN–; support 0V to VDD common-mode range and rail-to-rail overdrive tolerance. |
| REFIN (Pin 10) | Bandgap reference output / external ref input | Outputs 2.048V nominal; accepts 1.25V–2.2V external reference to set VREFBUF = 2 × VREFIN. |
| REFBUF (Pin 12) | Internal reference buffer output | Provides 4.096V master reference; bypass with 47µF ceramic capacitor; disable by grounding REFIN. |
| PD (Pin 13) | Power-down control | Active-high input; powers down core and reference buffer; double pulse triggers global reset. |
| CS / CNV / BUSY / SDO0–SDO3 / SCKI / SCKO | Digital interface signals | Supports pin-selectable CMOS (1.8V–5V) or LVDS I/O; configurable 1–4 lane data output in CMOS mode. |
Key Features
| Feature | Design Value |
|---|---|
| Per-channel SoftSpan configuration | Independent range selection per channel (±4.096V, 0–4.096V, ±2.048V, 0–2.048V) eliminates external gain-switching circuitry. |
| Integrated reference buffer | 4.096V output with <5ppm/°C drift and 20kΩ output impedance - reduces BOM count and improves system-level accuracy stability. |
| 102dB CMRR at 200Hz | Enables direct connection to unshielded industrial sensors without dedicated instrumentation amplifiers. |
| Rail-to-rail input overdrive tolerance | Withstands ±VDD differential overvoltage without corruption - protects against transient-induced data loss in noisy environments. |
| Simultaneous sampling & channel disabling | Four true simultaneous sample-and-hold paths; disabling unused channels increases throughput on remaining channels (e.g., 666ksps with 2 active). |
Applications
| Programmable Logic Controllers | Industrial Process Control |
|---|---|
Use Scenario: High-speed analog input modules acquiring voltage/current signals from multiple field transmitters in real time. IC Role / Device Role / Timing Role: Simultaneous 4-channel 16-bit digitizer with deterministic 2.5µs conversion cycle and integrated reference - serves as primary data acquisition engine. Use Value: Eliminates inter-channel skew and external reference components while maintaining ±1.25LSB linearity across –40°C to 125°C ambient. | Use Scenario: Multi-sensor feedback loop in chemical reactor control requiring synchronized pressure, temperature, and flow measurements. IC Role / Device Role / Timing Role: Quad differential ADC with 102dB CMRR digitizes isolated sensor outputs directly - replaces discrete signal conditioning stages. Use Value: Reduces system latency and component count; guarantees no missing codes for PID algorithm integrity under thermal stress. |
| Medical Imaging | High Speed Data Acquisition |
Use Scenario: Ultrasound beamformer front-end capturing echo signals from phased-array transducers. IC Role / Device Role / Timing Role: 400ksps/channel simultaneous sampler with 93.4dB SNR - captures low-amplitude RF echoes with minimal quantization noise. Use Value: Achieves >15.5 ENOB at 2kHz, supporting high-resolution B-mode image reconstruction without oversampling penalties. | Use Scenario: Portable vibration analyzer measuring acceleration across four axes using MEMS sensors. IC Role / Device Role / Timing Role: Low-power 16-bit SAR ADC with programmable SoftSpan ranges - adapts to varying sensor output scales in battery-powered equipment. Use Value: 81mW typical power and H-grade temperature rating enable ruggedized handheld design with extended field deployment life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-channel SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7606C-16 | 8-channel, 16-bit, ±10V/±5V fixed input ranges; no per-channel SoftSpan; uses external reference; 265ksps/ch. | Better channel density but less flexible input scaling; lower throughput; requires external reference design. | Select when needing >4 channels and fixed-range simplicity outweighs SoftSpan flexibility and speed. |
| ADS8684 | 4-channel, 16-bit, 1MSPS/ch; single-ended inputs only; integrated PGA; no simultaneous sampling; 4.096V ref only. | Higher speed and built-in gain, but lacks true simultaneous sampling and differential input CMRR advantage. | Select for high-speed single-ended sensor arrays where inter-channel timing alignment is not critical. |
Compared with AD7606C-16 and ADS8684, the LTC2344HUH-16#TRPBF uniquely combines per-channel SoftSpan configurability, true simultaneous sampling, 102dB CMRR, and H-grade temperature operation - making it optimal for thermally demanding, mixed-signal industrial and medical systems requiring precise multi-channel synchronization and input flexibility.
Availability
LTC2344HUH-16#TRPBF is available at Aetrix Electronics and suitable for industrial process control, medical imaging equipment, and high-reliability programmable logic controllers requiring stable component supply across extended temperature ranges.
Supply support for LTC2344HUH-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. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors for precision measurement and control applications.
The LTC2344 family is designed for high-accuracy, multi-channel data acquisition in thermally demanding industrial, medical, and test equipment - emphasizing simultaneous sampling integrity, input flexibility, and extended temperature reliability.
FAQ
What is the maximum sampling rate per channel for LTC2344HUH-16#TRPBF when all four channels are enabled?
The LTC2344HUH-16#TRPBF achieves 400ksps per channel with all four channels simultaneously enabled. This is its rated full-bandwidth operation point, supported by internal timing and power delivery specifications across the –40°C to +125°C operating range. Higher rates (e.g., 500ksps) are achievable only when reducing active channel count.
Does LTC2344HUH-16#TRPBF support both CMOS and LVDS digital interfaces?
Yes, the LTC2344HUH-16#TRPBF supports pin-selectable CMOS (1.8V to 5V) and LVDS serial interfaces. CMOS mode allows 1–4 data lanes for bus-width optimization; LVDS mode provides noise-immune differential signaling with specified VID, VOD, and timing compliance per JEDEC standards.
What input voltage ranges can be configured per channel on LTC2344HUH-16#TRPBF?
The LTC2344HUH-16#TRPBF supports per-channel SoftSpan configuration: ±4.096V, 0V to 4.096V, ±2.048V, or 0V to 2.048V - all derived from the internal 4.096V reference buffer. These correspond to ±VREFBUF, 0–VREFBUF, ±0.5×VREFBUF, and 0–0.5×VREFBUF ranges respectively.
Is LTC2344HUH-16#TRPBF qualified for operation at 125°C?
Yes, the "H" grade in LTC2344HUH-16#TRPBF denotes qualification for –40°C to +125°C operation. This includes full specification compliance for INL (±1.25LSB), SNR (≥91dB), and CMRR (≥87dB) across the entire temperature range, verified per Analog Devices' H-grade testing protocol.
How is the internal reference configured on LTC2344HUH-16#TRPBF?
The LTC2344HUH-16#TRPBF uses an internal bandgap reference (2.048V on REFIN) amplified 2× to generate 4.096V on REFBUF. For higher accuracy, REFIN accepts 1.25V–2.2V external references; alternatively, REFBUF may be overdriven with 2.5V–5V external references when the internal buffer is disabled by grounding REFIN.
LTC2344HUH-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):
- 400k
- Number of Inputs:
- 4
- Input Type:
- Differential
- Data Interface:
- LVDS - Serial, SPI
- Configuration:
- S/H-MUX-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 4
- 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:
- -
LTC2344HUH-16#TRPBF FAQ
1.How can I place an order for LTC2344HUH-16#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2344HUH-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 LTC2344HUH-16#TRPBF reliable?
The price and inventory of LTC2344HUH-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 LTC2344HUH-16#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2344HUH-16#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2344HUH-16#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2344HUH-16#TRPBF?
LTC2344HUH-16#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2344HUH-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 LTC2344HUH-16#TRPBF?
For technical support, including LTC2344HUH-16#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2344HUH-16#TRPBF requirements.
6.How does Aetrix verify that LTC2344HUH-16#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2344HUH-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 LTC2344HUH-16#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2344HUH-16#TRPBF?
All LTC2344HUH-16#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2344HUH-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 LTC2344HUH-16#TRPBF part is unused and in its original packaging.
Return procedure for LTC2344HUH-16#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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