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Analog Devices Inc. LTC2180IUP#PBF
- Part No.:
- LTC2180IUP#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-WFQFN Exposed Pad
- Datasheet:
-
LTC2180IUP#PBF.pdf
- Description:
- IC ADC 16BIT PIPELINED 64QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,697
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Product details
Overview
LTC2180IUP#PBF from Analog Devices (formerly Linear Technology) is a 16-bit, 25Msps dual-channel simultaneous-sampling analog-to-digital converter optimized for high-dynamic-range signal digitization in communications and instrumentation. It delivers 77dB SNR, 90dB SFDR, and ultralow 0.07psRMS jitter at 1.8V supply, enabling undersampling of IF signals up to 140MHz in portable medical imaging and multi-channel data acquisition systems.
For engineers reviewing the LTC2180IUP#PBF datasheet, LTC2180IUP#PBF pinout, LTC2180IUP#PBF application, or LTC2180IUP#PBF equivalent, key selection criteria include its 25Msps sampling rate, dual-channel timing matching, DDR LVDS/CMOS output flexibility, 550MHz full-power bandwidth, and –40°C to +85°C industrial temperature grade.
Technical Context
The LTC2180IUP#PBF implements two independent 16-bit ADC cores with matched sample-and-hold circuits, ensuring precise channel-to-channel synchronization for I/Q or differential signal capture. Its architecture supports selectable input ranges (1VP-P to 2VP-P), optional clock duty cycle stabilization, and randomizer-enabled data output to reduce spectral correlation.
Digital interface options include full-rate CMOS, DDR CMOS, or DDR LVDS outputs-each configurable via SPI or parallel control pins-with separate OVDD supply (1.2V–1.8V) enabling voltage-level translation. Internal reference provides 1.25V ±25ppm/°C stability, while external reference mode accepts 0.625V–1.3V on SENSE pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with no missing codes over temperature-guarantees monotonicity in precision measurement applications. |
| Sampling Rate | 25Msps-supports baseband and low-IF digitization in cost-sensitive, power-constrained systems. |
| SNR / SFDR | 77dB SNR and 90dB SFDR at 70MHz input-enables high-fidelity signal reconstruction in software-defined radios. |
| Power Dissipation | 78.3mW typical total (39.15mW per channel) at 25Msps-reduces thermal load in dense PCB layouts. |
| Input Bandwidth | 550MHz full-power bandwidth-allows direct sampling of wideband RF/IF signals without external amplification. |
| Jitter Performance | 0.07psRMS aperture jitter-minimizes noise floor degradation during undersampling of 140MHz signals. |
| Operating Temp | –40°C to +85°C-qualified for industrial and outdoor embedded instrumentation environments. |
Pinout & Package
64-lead (9mm × 9mm) plastic QFN package with exposed thermal pad (Pin 65 = GND). Requires soldering of exposed pad to PCB ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (1,16,17,64) | Analog supply input | 1.7V–1.9V rail powering ADC core and references; requires local 0.1µF ceramic bypass. |
| AIN1+/AIN1– (4,5) | Channel 1 differential analog input | Accepts 1VP-P to 2VP-P differential signal; biased by VCM1 (Pin 2) at VDD/2. |
| ENC+/ENC– (18,19) | Differential encode clock input | Triggers simultaneous sampling on both channels; ENC– tied to GND enables single-ended mode. |
| PAR/SER (11) | Programming mode select | Ground = serial SPI interface; VDD = parallel logic control of key functions (Duty Cycle Stabilizer, Output Mode). |
| D1_0–D1_15 / D2_0–D2_15 (23–32,43–58) | Dual-channel digital data outputs | Configurable as CMOS (single-ended) or DDR LVDS (differential); output swing set by OVDD (Pin 42). |
| REFH/REFL (7,8,9,10) | Internal reference high/low | Provides 1.25V reference; requires 10µF + 0.1µF bypassing between REFH and REFL for stability. |
| SENSE (63) | External reference input | Accepts 0.625V–1.3V external reference voltage for improved gain accuracy and drift performance. |
Key Features
| Feature | Design Value |
|---|---|
| Two-channel simultaneous sampling | Guarantees sub-picosecond channel-to-channel skew-critical for phase-coherent I/Q demodulation and beamforming. |
| Optional clock duty cycle stabilizer | Enables full-speed operation with non-50% clock duty cycles-simplifies clock generation in FPGA-based systems. |
| Data output randomizer | Reduces deterministic spectral spurs caused by periodic patterns-improves EMI compliance in compact enclosures. |
| Low-power shutdown and nap modes | 1mW sleep and 10mW nap power states-extends battery life in portable medical and test equipment. |
| Flexible digital output interface | Supports CMOS, DDR CMOS, or DDR LVDS with programmable OVDD (1.2V–1.8V)-enables direct interfacing to FPGAs or ASICs without level shifters. |
Applications
| Portable Medical Ultrasound | Multi-Channel Data Acquisition |
|---|---|
Use Scenario: Digitizing echo return signals from phased-array transducers in handheld ultrasound units. IC Role / Device Role / Timing Role: Dual-channel simultaneous sampling ADC capturing I/Q components with matched latency and gain. Use Value: 77dB SNR and 550MHz bandwidth enable high-resolution B-mode imaging at 25Msps within strict power budgets. | Use Scenario: High-precision sensor fusion in industrial condition monitoring systems with multiple analog inputs. IC Role / Device Role / Timing Role: Simultaneous sampling front-end for synchronized voltage, current, and vibration measurements. Use Value: ±2LSB INL and ±0.5LSB DNL ensure accurate calibration across temperature without per-channel trimming. |
| Software Defined Radio (SDR) | Nondestructive Testing (NDT) |
Use Scenario: Direct IF sampling of 70MHz LTE or WiMAX signals in compact SDR transceivers. IC Role / Device Role / Timing Role: Undersampling ADC with 0.07psRMS jitter preserving SNR at Nyquist zone 2. Use Value: 90dB SFDR suppresses harmonics and intermodulation products critical for adjacent-channel rejection. | Use Scenario: Capturing high-frequency acoustic emission waveforms from piezoelectric sensors in pipeline inspection tools. IC Role / Device Role / Timing Role: Low-noise, wide-bandwidth digitizer for transient pulse analysis with precise time-of-flight measurement. Use Value: 25Msps sampling rate and 77dB SNR resolve microsecond-scale defect reflections in metallic structures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel 16-bit ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9269-20EBZ | 20Msps, 16-bit, single-channel; no simultaneous sampling; SPI-only configuration. | Lacks dual-channel sync; suited for lower-speed single-input systems like legacy data loggers. | Select only when channel count and simultaneity are not required-avoid for I/Q or differential capture. |
| ADS52J90IRGCT | 10-bit, 100Msps, 10-channel; higher speed but lower resolution; JESD204B interface. | Targets high-channel-count, moderate-resolution applications like radar front-ends-not suitable for precision metrology. | Choose for massively parallel acquisition where resolution >10 bits is secondary to channel density and throughput. |
Compared with AD9269-20EBZ and ADS52J90IRGCT, the LTC2180IUP#PBF uniquely balances 16-bit resolution, true dual-channel simultaneity, and ultra-low jitter at 25Msps-making it irreplaceable in portable ultrasound and calibrated multi-sensor systems requiring matched gain, offset, and timing.
Availability
LTC2180IUP#PBF is available at Aetrix Electronics and suitable for portable medical imaging, multi-channel data acquisition, and software-defined radio applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC2180IUP#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. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving aerospace, industrial, automotive, and communications markets.
The LTC2180IUP#PBF belongs to ADI's high-speed precision ADC product line, designed specifically for demanding communications and instrumentation applications where dynamic range, channel matching, and low power are co-optimized.
FAQ
What is the maximum analog input frequency supported by the LTC2180IUP#PBF?
The LTC2180IUP#PBF features a 550MHz full-power bandwidth, allowing it to accurately digitize analog signals up to 550MHz in amplitude before significant attenuation occurs. This enables direct undersampling of IF signals such as 70MHz or 140MHz carriers in SDR and test equipment without external amplification or filtering.
Does the LTC2180IUP#PBF support external voltage reference operation?
Yes, the LTC2180IUP#PBF supports external reference mode via the SENSE pin (Pin 63), which accepts a stable 0.625V–1.3V reference voltage. When used, this improves gain accuracy and temperature drift performance compared to the internal 1.25V reference, making the LTC2180IUP#PBF suitable for high-precision calibration-critical applications.
What digital output interface options does the LTC2180IUP#PBF provide?
The LTC2180IUP#PBF offers three configurable digital output modes: full-rate CMOS, double-data-rate CMOS, and double-data-rate LVDS. Output voltage levels are set by OVDD (Pin 42), supporting 1.2V, 1.5V, or 1.8V CMOS swings, or 3.5mA/1.75mA LVDS current modes-enabling flexible interfacing with FPGAs, ASICs, or DSPs.
How does the LTC2180IUP#PBF achieve simultaneous sampling across both channels?
The LTC2180IUP#PBF integrates two fully independent 16-bit ADC cores sharing a common sample-and-hold circuit architecture with matched propagation delays. Its internal design ensures sub-picosecond channel-to-channel skew and guaranteed simultaneity-even under varying temperature and supply conditions-verified by ±1.5mV offset matching and ±0.3%FS gain matching specs.
What power-saving modes are available on the LTC2180IUP#PBF?
The LTC2180IUP#PBF provides two low-power states: Nap mode (10mW) and Sleep mode (1mW). Both retain register settings and reference bias; Sleep mode disables the ADC core entirely, while Nap mode preserves partial functionality for rapid wake-up-ideal for battery-powered portable medical devices needing intermittent high-fidelity sampling.
LTC2180IUP#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 64-WFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 25M
- Number of Inputs:
- 2
- Input Type:
- Differential
- Data Interface:
- LVDS - Parallel, Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 2
- Architecture:
- Pipelined
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 1.7V ~ 1.9V
- Voltage - Supply, Digital:
- 1.7V ~ 1.9V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 64-QFN (9x9)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2180IUP#PBF FAQ
1.How can I place an order for LTC2180IUP#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2180IUP#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 LTC2180IUP#PBF reliable?
The price and inventory of LTC2180IUP#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2180IUP#PBF is usually 5 days.
3.What payment methods are accepted for LTC2180IUP#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2180IUP#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2180IUP#PBF?
LTC2180IUP#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2180IUP#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 LTC2180IUP#PBF?
For technical support, including LTC2180IUP#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2180IUP#PBF requirements.
6.How does Aetrix verify that LTC2180IUP#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2180IUP#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 LTC2180IUP#PBF meets industry standards.
7.What is the process for return or replacement of LTC2180IUP#PBF?
All LTC2180IUP#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2180IUP#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 LTC2180IUP#PBF part is unused and in its original packaging.
Return procedure for LTC2180IUP#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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