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Analog Devices Inc. LTC2162IUK#PBF
- Part No.:
- LTC2162IUK#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
LTC2162IUK#PBF.pdf
- Description:
- IC ADC 16BIT PIPELINED 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:141
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Product details
Overview
LTC2162IUK#PBF from Analog Devices (formerly Linear Technology) is a 16-bit, 65Msps low-power analog-to-digital converter optimized for high-frequency signal digitization in communications infrastructure. It delivers 77dB SNR, 90dB SFDR, and ultralow 0.07psRMS jitter, enabling undersampling of IF signals up to 140MHz with exceptional noise performance. Its single 1.8V supply, 48-lead QFN package, and support for CMOS/DDR-CMOS/DDR-LVDS outputs make it suitable for cellular base stations and software-defined radios.
For engineers reviewing the LTC2162IUK#PBF datasheet, LTC2162IUK#PBF pinout, LTC2162IUK#PBF application, or LTC2162IUK#PBF equivalent, key selection criteria include its guaranteed ±2LSB INL over –40°C to +85°C, 550MHz full-power bandwidth, configurable input range (1–2VP-P), optional clock duty cycle stabilizer, and SPI-configurable output modes - all critical for precision wideband receiver design.
Technical Context
The LTC2162IUK#PBF employs a high-fidelity sample-and-hold front-end with 550MHz full-power bandwidth and supports differential or single-ended encode inputs (ENC+/ENC–) compatible with PECL, LVDS, TTL, or CMOS clock sources. Its architecture includes an internal reference (1.25V ±2.5%) and external reference option via SENSE pin (0.625–1.3V), with programmable common-mode bias (VCM = VDD/2 ±25mV).
Digital interface flexibility is implemented through PAR/SER pin selection: serial SPI mode enables full configuration (data randomizer, nap/sleep modes, output format), while parallel mode uses CS/SCK/SDI as direct logic controls. Output drivers support three voltage domains - VDD (1.7–1.9V), OVDD (1.1–1.9V), and separate OGND - minimizing digital switching noise coupling into analog sections.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with no missing codes across –40°C to +85°C - ensures monotonicity and full dynamic range utilization in production environments. |
| Sampling Rate | 65Msps maximum - enables direct sampling of wideband IF signals up to 140MHz using undersampling techniques. |
| SNR / SFDR | 77dB SNR and 90dB SFDR at 70MHz input - meets stringent spectral purity requirements for LTE/5G base station receivers. |
| Aperture Jitter | 0.07psRMS (differential encode) - minimizes sampling uncertainty, preserving ENOB at high input frequencies. |
| Power Dissipation | 87mW at 65Msps with CMOS outputs - enables dense multichannel data acquisition without thermal derating. |
| Analog Input Range | Selectable 1VP-P to 2VP-P differential - simplifies front-end gain staging and matches common RF mixer outputs. |
| INL / DNL | ±2LSB INL and ±0.5LSB DNL (typ) - guarantees accurate amplitude fidelity for medical imaging and test equipment applications. |
Pinout & Package
Package: 48-lead (7mm × 7mm) plastic QFN with exposed thermal pad (Pin 49 = GND). Requires soldering of exposed pad to PCB ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCM (1) | Common-mode bias output | Nominally VDD/2 ±25mV; used to set AIN+ and AIN– common-mode voltage - eliminates need for external bias network. |
| AIN+ / AIN– (2,3) | Differential analog input | Accepts 1–2VP-P differential signal; 80dB CMRR ensures robustness against PCB layout asymmetry. |
| REFH / REFL (5,6,7,8) | ADC reference terminals | Support internal 1.25V reference or external reference via SENSE pin - enables precise gain calibration in metrology systems. |
| ENC+ / ENC– (15,16) | Encode clock inputs | Differential or single-ended operation; duty cycle stabilizer (enabled via CS) maintains timing accuracy across wide input duty cycles. |
| PAR/SER (9) | Programming mode select | Ground = SPI configuration mode; VDD = parallel control mode - allows field-upgradable firmware or fixed-function deployment. |
| D0–D15 (21–24,36–40) | Data outputs | Configurable as full-rate CMOS, DDR-CMOS, or DDR-LVDS - adapts to FPGA I/O standards without level-shifting components. |
| VDD / OVDD (12,13,47,48 / 32) | Analog / output power supplies | Independent 1.7–1.9V analog rail and 1.1–1.9V output rail - isolates digital switching noise from sensitive analog core. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow aperture jitter (0.07psRMS) | Enables high-fidelity undersampling of IF signals up to 140MHz without external jitter cleaning circuitry. |
| Configurable output interface | Full-rate CMOS, DDR-CMOS, or DDR-LVDS outputs selectable via SPI or parallel pins - reduces BOM count across platform variants. |
| Optional data output randomizer | Reduces deterministic spectral spurs caused by periodic digital switching - improves SFDR in narrowband communication systems. |
| Low-power sleep and nap modes | 1mW sleep and 10mW nap power states - extends battery life in portable medical ultrasound and handheld spectrum analyzers. |
| Integrated clock duty cycle stabilizer | Compensates for >30%–70% input clock duty cycle variation - relaxes clock generator design constraints in cost-sensitive SDR platforms. |
Applications
| Cellular Base Stations | Software Defined Radios |
|---|---|
|
Use Scenario: Digitizing 70–140MHz IF signals from RF front-ends in macrocell and small-cell LTE/5G transceivers. IC Role / Device Role / Timing Role: High-speed ADC capturing wide instantaneous bandwidth with minimal quantization noise and harmonic distortion. Use Value: 90dB SFDR and 77dB SNR meet 3GPP ACLR and EVM specifications without post-processing correction. |
Use Scenario: Reconfigurable IF sampling in military/commercial SDR platforms supporting multiple waveforms (e.g., FM, AM, OFDM). IC Role / Device Role / Timing Role: Programmable ADC providing flexible sampling rate (up to 65Msps) and output format to match host processor interface. Use Value: SPI-configurable features (randomizer, nap mode, clock stabilizer) enable adaptive power/performance trade-offs per waveform. |
| Portable Medical Imaging | Multichannel Data Acquisition |
|
Use Scenario: Ultrasound beamforming digitization where low power and high linearity are critical for image contrast resolution. IC Role / Device Role / Timing Role: Low-noise 16-bit ADC converting echo return signals with <±2LSB INL to preserve tissue boundary fidelity. Use Value: 87mW power at 65Msps allows integration of 8–16 channels on a single PCB without active cooling. |
Use Scenario: Simultaneous sampling of multiple sensor channels (e.g., vibration, temperature, strain) in industrial condition monitoring systems. IC Role / Device Role / Timing Role: Precision ADC delivering consistent 16-bit accuracy across –40°C to +85°C ambient range. Use Value: Guaranteed no missing codes and ±0.5LSB DNL ensure reliable detection of low-amplitude fault signatures in predictive maintenance algorithms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9268BCPZ-65 | 16-bit, 65Msps; requires 3.3V AVDD + 1.8V DVDD; no integrated clock stabilizer; 75dB SNR at 70MHz. | Higher power (195mW); less suitable for thermally constrained portable designs; lacks duty-cycle stabilization. | Prefer when legacy 3.3V analog supply infrastructure exists and jitter budget allows external clock conditioning. |
| ADS54J60IRGC | 16-bit, 500Msps; JESD204B serial interface; 75dB SNR at 140MHz; 1.8V/1.0V dual supply. | Targeted at higher-bandwidth applications (e.g., radar); requires FPGA with JESD204B PHY; significantly higher system complexity. | Choose only when >100Msps sampling is required and JESD204B ecosystem is already deployed. |
Compared with AD9268BCPZ-65 and ADS54J60IRGC, the LTC2162IUK#PBF offers superior jitter performance (0.07psRMS vs ≥0.15ps), lower power (87mW vs 195mW/1.2W), and integrated clock conditioning - making it optimal for compact, high-SFDR, thermally sensitive wideband receivers.
Availability
LTC2162IUK#PBF is available at Aetrix Electronics and suitable for cellular infrastructure, software-defined radio development, and portable medical imaging requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC2162IUK#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 LTC2162IUK#PBF belongs to ADI's high-speed precision ADC product line, designed specifically for demanding communications and instrumentation applications where wide bandwidth, low jitter, and guaranteed DC accuracy must coexist.
FAQ
What is the operating temperature range for the LTC2162IUK#PBF?
The LTC2162IUK#PBF is rated for industrial operation from –40°C to +85°C. This extended range is validated across all key AC and DC specifications including SNR, SFDR, INL, and DNL - ensuring consistent performance in outdoor base stations and ruggedized test equipment where ambient temperatures fluctuate widely.
Does the LTC2162IUK#PBF support both differential and single-ended clock inputs?
Yes, the LTC2162IUK#PBF supports both configurations: ENC+ and ENC– can be driven differentially (e.g., LVDS, PECL) or with ENC– tied to GND for single-ended TTL/CMOS clocks. The datasheet specifies distinct input voltage thresholds and jitter performance (0.07psRMS differential, 0.09psRMS single-ended) for each mode.
How does the clock duty cycle stabilizer function in the LTC2162IUK#PBF?
The clock duty cycle stabilizer in the LTC2162IUK#PBF corrects input clock duty cycles ranging from 30% to 70%, maintaining consistent sampling aperture timing. It is enabled via the CS pin in parallel programming mode and eliminates the need for external clock cleanup circuits - reducing bill-of-materials and layout complexity in SDR and instrumentation designs.
Can the LTC2162IUK#PBF operate with an external reference voltage?
Yes, the LTC2162IUK#PBF supports external reference operation via the SENSE pin, accepting 0.625V to 1.3V with ±2.5% tolerance. When used, the internal 1.25V reference is disabled, allowing system-level calibration traceability and improved temperature drift performance compared to the internal reference (±30ppm/°C vs ±10ppm/°C).
What are the power supply requirements for the LTC2162IUK#PBF digital outputs?
The LTC2162IUK#PBF requires two independent supplies: VDD (1.7–1.9V) for the analog core and OVDD (1.1–1.9V) for digital outputs. OVDD sets the CMOS output swing (1.2V, 1.5V, or 1.8V) or LVDS current mode (1.75mA or 3.5mA), enabling direct interfacing with diverse FPGA I/O banks without level shifters.
LTC2162IUK#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):
- 65M
- 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:
- -
LTC2162IUK#PBF FAQ
1.How can I place an order for LTC2162IUK#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2162IUK#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 LTC2162IUK#PBF reliable?
The price and inventory of LTC2162IUK#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2162IUK#PBF is usually 5 days.
3.What payment methods are accepted for LTC2162IUK#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2162IUK#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2162IUK#PBF?
LTC2162IUK#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2162IUK#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 LTC2162IUK#PBF?
For technical support, including LTC2162IUK#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2162IUK#PBF requirements.
6.How does Aetrix verify that LTC2162IUK#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2162IUK#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 LTC2162IUK#PBF meets industry standards.
7.What is the process for return or replacement of LTC2162IUK#PBF?
All LTC2162IUK#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2162IUK#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 LTC2162IUK#PBF part is unused and in its original packaging.
Return procedure for LTC2162IUK#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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