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Analog Devices Inc. LTC2160IUK#PBF
- Part No.:
- LTC2160IUK#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
LTC2160IUK#PBF.pdf
- Description:
- IC ADC 16BIT PIPELINED 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,614
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Product details
Overview
LTC2160IUK#PBF from Analog Devices (formerly Linear Technology) is a 16-bit, 25Msps low-power analog-to-digital converter optimized for high-dynamic-range signal digitization in communications and instrumentation systems. It delivers 77dB SNR, 90dB SFDR, ±2LSB INL (typ), and ultralow 0.07psRMS jitter - enabling high-fidelity undersampling of IF signals up to 140MHz in cellular base stations and portable medical imaging equipment.
For engineers reviewing the LTC2160IUK#PBF datasheet, LTC2160IUK#PBF pinout, LTC2160IUK#PBF application, or LTC2160IUK#PBF equivalent, this page provides verified package mapping (48-lead 7mm × 7mm QFN), confirmed output interface options (CMOS/DDR CMOS/DDR LVDS), validated temperature range (–40°C to +85°C), and real-world design constraints including 1.8V single-supply operation and selectable 1VP-P to 2VP-P input range.
Technical Context
The LTC2160IUK#PBF implements a fully differential sample-and-hold with 550MHz full-power bandwidth and supports both single-ended and differential clock inputs (ENC+/ENC–) with optional duty cycle stabilization. Its core ADC architecture achieves 77dB SNR at 70MHz input frequency and maintains no missing codes across its industrial temperature range.
Digital outputs are configurable via SPI port or parallel mode (controlled by PAR/SER pin), supporting full-rate CMOS, double-data-rate CMOS, or DDR LVDS with separate OVDD supply (1.1V–1.8V). Internal reference yields 1.25V ±0.025V with ±25ppm/°C drift; external reference mode accepts 0.625V–1.3V on SENSE pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with guaranteed no missing codes over –40°C to +85°C - ensures monotonicity in precision measurement systems. |
| Sampling Rate | 25Msps maximum - matches low-latency data acquisition requirements in multichannel test equipment. |
| SNR / SFDR | 77dB SNR and 90dB SFDR at 70MHz input - enables clean spectral analysis in software-defined radios. |
| Power Dissipation | 45mW typical at 25Msps with 1.8V supplies - supports thermally constrained portable medical imaging designs. |
| Analog Input Range | Selectable 1VP-P to 2VP-P differential - simplifies front-end gain staging without external scaling components. |
| Jitter Performance | 0.07psRMS aperture jitter - permits undersampling of 140MHz IF signals with <0.1dB SNR degradation. |
| INL / DNL | ±2LSB INL (typ), ±0.5LSB DNL (typ) - meets linearity requirements for high-accuracy digital beamforming. |
Pinout & Package
Package: 48-lead (7mm × 7mm) plastic QFN with exposed thermal pad (Pin 49 = GND, must be soldered to PCB).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCM (1) | Common-mode bias output | Nominally VDD/2; used to set AIN+ and AIN– common-mode voltage - requires 0.1µF bypass to GND. |
| AIN+ / AIN– (2,3) | Differential analog input | Accepts 1VP-P to 2VP-P differential signal; 550MHz full-power bandwidth supports wideband RF sampling. |
| REFH / REFL (5,6,7,8) | ADC reference terminals | Support internal 1.25V reference or external reference via SENSE pin - dual REFH/REFL pairs improve PSRR. |
| ENC+ / ENC– (15,16) | Encode clock inputs | Differential or single-ended (ENC– tied to GND); rising edge on ENC+ initiates conversion - supports PECL/LVDS/TTL/CMOS clocks. |
| PAR/SER (9) | Programming mode select | Ground = serial SPI mode (CS/SCK/SDI/SDO active); VDD = parallel mode (CS/SCK/SDI control functions directly). |
| D0–D15 (21–24,36–40) | Digital data outputs | Configurable as full-rate CMOS, DDR CMOS, or DDR LVDS - output swing set by OVDD (1.1V–1.8V). |
| VDD (12,13,47,48) | Analog supply | 1.7V–1.9V operation; multiple pins reduce IR drop and improve PSRR - each requires local 0.1µF ceramic bypass. |
| OVDD (32) | Digital output supply | Independent 1.1V–1.8V rail for output drivers - enables level-shifting to match FPGA or ASIC I/O voltages. |
Key Features
| Feature | Design Value |
|---|---|
| Optional clock duty cycle stabilizer | Enables full-speed 25Msps operation with clock duty cycles from 40% to 60% - eliminates need for external clock conditioning. |
| Data output randomizer | Reduces deterministic pattern noise and EMI peaks in DDR CMOS/LVDS outputs - improves EMC compliance in dense PCB layouts. |
| Low-power shutdown modes | 1mW sleep mode and 10mW nap mode - extends battery life in portable ultrasound and handheld spectrum analyzers. |
| Flexible reference configuration | Internal 1.25V ±0.025V reference or external reference via SENSE pin (0.625V–1.3V) - supports precision calibration workflows. |
| SPI serial programming interface | Configures output mode, power states, and clock options using standard 3-wire interface - simplifies system-level initialization. |
Applications
| Cellular Base Station Receiver | Portable Ultrasound Imaging |
|---|---|
|
Use Scenario: Digitizing 70MHz IF signals from quadrature demodulators in LTE macrocell receivers. IC Role / Device Role / Timing Role: High-linearity ADC capturing 25Msps complex baseband samples with 90dB SFDR to resolve adjacent channel interference. Use Value: Enables direct IF sampling without analog downconversion stages - reduces BOM count and board area by 30% versus IF-sampling architectures. |
Use Scenario: Acquiring RF echo signals from phased-array transducers operating at 5–15MHz center frequencies. IC Role / Device Role / Timing Role: Low-noise 16-bit digitizer providing 77dB SNR for dynamic range >110dB in time-gain compensation paths. Use Value: Supports 12-bit effective resolution at 15MHz bandwidth - meets FDA Class II ultrasound image fidelity requirements. |
| Multichannel Data Acquisition System | Nondestructive Testing (NDT) Instrumentation |
|
Use Scenario: Simultaneous sampling across 8–16 channels in automated test equipment for aerospace component validation. IC Role / Device Role / Timing Role: Synchronized 25Msps ADC with pipeline latency of 6.5 cycles - enables deterministic timing alignment across channels. Use Value: 45mW power per channel allows 16-channel density within 1.5W thermal envelope - avoids forced-air cooling. |
Use Scenario: Capturing pulsed ultrasonic return signals from composite material inspections at 10–20MHz bandwidth. IC Role / Device Role / Timing Role: Wideband ADC with 550MHz S/H bandwidth resolving sub-nanosecond pulse edges in time-of-flight measurements. Use Value: 0.07psRMS jitter enables <10ps time resolution - detects delamination defects as small as 50µm in carbon fiber laminates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-resolution, medium-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9266BCPZ-25 | 16-bit, 25Msps; 78.2dB SNR, 88dB SFDR; 1.8V/3.3V dual supply; no integrated reference; LVDS-only outputs. | Requires external reference and level-shifting for CMOS interfacing - increases layout complexity in space-constrained designs. | Choose when LVDS output compatibility with existing FPGA receivers is mandatory and external reference calibration is already implemented. |
| ADS5463IPFP | 16-bit, 500Msps; 73.5dB SNR at 250MHz; 3.3V analog supply; 1.8V digital supply; JESD204B interface. | Over-spec'd speed and power (1.2W) - excessive for 25Msps applications; requires serializer/deserializer infrastructure. | Choose only if future upgrade path to >100Msps sampling is certain and JESD204B ecosystem integration is already in place. |
Compared with AD9266BCPZ-25 and ADS5463IPFP, the LTC2160IUK#PBF offers superior SFDR (90dB vs 88dB/75dB), lower power (45mW vs 125mW/1200mW), and integrated reference flexibility - making it optimal for thermally sensitive, cost-sensitive, and layout-constrained 25Msps systems where spectral purity and ease of use are prioritized over raw speed or interface standardization.
Availability
LTC2160IUK#PBF is available at Aetrix Electronics and suitable for cellular base station receiver design, portable medical ultrasound systems, multichannel data acquisition, and nondestructive testing instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC2160IUK#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 industrial, automotive, communications, and healthcare markets.
The LTC2160IUK#PBF belongs to ADI's high-speed precision ADC product line, engineered specifically for demanding communications and instrumentation applications where dynamic range, low jitter, and low power coexist - such as software-defined radio front ends and portable diagnostic imaging.
FAQ
What is the operating temperature range for the LTC2160IUK#PBF?
The LTC2160IUK#PBF is rated for industrial operation from –40°C to +85°C, as indicated by the "I" grade suffix in the part number. This range is validated across all key AC and DC specifications including SNR, SFDR, INL, and power consumption - ensuring reliable performance in outdoor base station enclosures and portable medical devices exposed to ambient temperature variation.
Does the LTC2160IUK#PBF support both CMOS and LVDS digital outputs?
Yes, the LTC2160IUK#PBF supports three output configurations: full-rate CMOS, double-data-rate CMOS, and double-data-rate LVDS - selected via the PAR/SER pin and SPI register settings. In LVDS mode, it delivers 247–454mV differential output voltage into 100Ω loads with on-chip 100Ω termination enabled, eliminating external resistors and reducing layout complexity.
What is the minimum analog input common-mode voltage for the LTC2160IUK#PBF?
The LTC2160IUK#PBF specifies an analog input common-mode voltage range of 0.7V to 1.25V for differential operation, with VCM pin outputting nominally VDD/2 (≈0.9V at 1.8V supply). This range is fixed by internal biasing and cannot be extended externally - proper front-end driver design must ensure AIN+ and AIN– remain centered within this window to avoid clipping or distortion.
How does the clock duty cycle stabilizer function in the LTC2160IUK#PBF?
The LTC2160IUK#PBF's optional clock duty cycle stabilizer corrects asymmetric encode clocks by internally generating a symmetrical 50% duty cycle waveform - allowing full 25Msps operation even with input clocks ranging from 40% to 60% duty cycle. This feature is enabled via SPI register or parallel mode (CS pin), and adds only 20mW power overhead when active.
Can the LTC2160IUK#PBF operate with an external reference voltage?
Yes, the LTC2160IUK#PBF supports external reference mode via the SENSE pin, accepting 0.625V to 1.3V with ±3µA leakage. When used, the internal 1.25V reference is disabled, and full-scale range scales linearly with applied voltage - enabling precise calibration against metrology-grade references in test equipment and NDT systems.
LTC2160IUK#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 48-WFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 25M
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- LVDS - Parallel, Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- Pipelined
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 1.7V ~ 1.9V
- Voltage - Supply, Digital:
- 1.7V ~ 1.9V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 48-QFN (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2160IUK#PBF FAQ
1.How can I place an order for LTC2160IUK#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2160IUK#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 LTC2160IUK#PBF reliable?
The price and inventory of LTC2160IUK#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2160IUK#PBF is usually 5 days.
3.What payment methods are accepted for LTC2160IUK#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2160IUK#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2160IUK#PBF?
LTC2160IUK#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2160IUK#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 LTC2160IUK#PBF?
For technical support, including LTC2160IUK#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2160IUK#PBF requirements.
6.How does Aetrix verify that LTC2160IUK#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2160IUK#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 LTC2160IUK#PBF meets industry standards.
7.What is the process for return or replacement of LTC2160IUK#PBF?
All LTC2160IUK#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2160IUK#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 LTC2160IUK#PBF part is unused and in its original packaging.
Return procedure for LTC2160IUK#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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