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Analog Devices Inc. LTC2163IUK#PBF
- Part No.:
- LTC2163IUK#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
LTC2163IUK#PBF.pdf
- Description:
- IC ADC 16BIT PIPELINED 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,546
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Product details
Overview
LTC2163IUK#PBF from Analog Devices (formerly Linear Technology) is a 16-bit, 80Msps low-power analog-to-digital converter optimized for undersampling high-frequency IF signals in communications infrastructure. It delivers 76.3dB SNR, 90dB SFDR, and ultralow 0.09psRMS jitter at differential encode mode - enabling high-fidelity digitization of 70MHz+ RF inputs in cellular base stations and software-defined radios.
For engineers reviewing the LTC2163IUK#PBF datasheet, LTC2163IUK#PBF pinout, LTC2163IUK#PBF application, or LTC2163IUK#PBF equivalent, this page provides verified specifications, QFN-48 pin mapping, real-world use cases in multichannel data acquisition and portable medical imaging, and validated alternative ADCs with documented performance trade-offs.
Technical Context
The LTC2163IUK#PBF implements a fully differential sample-and-hold front-end with 550MHz full-power bandwidth and supports three digital output modes: full-rate CMOS, DDR CMOS, and DDR LVDS. Its clock interface accepts single-ended TTL/CMOS or differential LVDS/PECL inputs, with an optional duty cycle stabilizer to maintain AC performance across wide input duty cycle ranges.
Internal reference operation (1.25V ±1.2%) and external reference support (0.625V–1.3V via SENSE pin) enable flexible system-level voltage scaling. Serial SPI configuration allows runtime control of output format, randomizer, nap/sleep modes, and clock stabilization - critical for adaptive radio architectures requiring dynamic power/performance tuning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with no missing codes over –40°C to +85°C - guarantees monotonicity in precision measurement systems. |
| Sampling Rate | 80Msps maximum - matches bandwidth requirements for LTE-A carrier aggregation and ultrasound beamforming. |
| SNR @ 70MHz | 76.3dBFS typical - enables >12 effective bits at IF frequencies without external decimation filtering. |
| SFDR @ 70MHz | 90dBFS typical (2nd/3rd harmonic) - suppresses adjacent-channel interference in dense spectral environments. |
| Power Dissipation | 108mW at 80Msps with 1.2V OVDD - reduces thermal load in compact multichannel receiver modules. |
| Analog Supply | Single 1.8V (1.7–1.9V) VDD - simplifies power delivery and eliminates need for dual-rail supplies. |
| Input Bandwidth | 550MHz full-power - supports direct sampling of L-band and S-band RF signals without image-reject mixers. |
Pinout & Package
48-lead (7mm × 7mm) plastic QFN package 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; used to set analog input common-mode level - must be bypassed with 0.1µF capacitor to GND. |
| AIN+, AIN– (2,3) | Differential analog input | High-Z, 550MHz BW inputs accepting 1–2VP-P range - require matched trace routing and 100Ω termination for optimal SFDR. |
| ENC+, ENC– (15,16) | Differential encode clock input | Rising/falling edge-triggered sampling; ENC– tied to GND enables single-ended mode - jitter sensitivity <0.09psRMS. |
| PAR/SER (9) | Programming mode select | Ground = serial SPI mode (CS/SCK/SDI/SDO active); VDD = parallel mode (CS/SCK/SDI control fixed functions). |
| D0–D15 (21–24,36–40) | Parallel digital outputs | Configurable as full-rate CMOS, DDR CMOS, or DDR LVDS - OVDD selectable from 1.2V to 1.8V for I/O voltage compatibility. |
| VDD (12,13,47,48) | Analog supply | 1.7–1.9V supply with local 0.1µF ceramic bypass per pair - shared pins reduce PCB decoupling complexity. |
| OVDD (32) | Digital output supply | Independent 1.1–1.9V rail - enables interfacing with 1.2V FPGA I/O banks while maintaining analog section stability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow jitter sampling | 0.09psRMS (differential encode) - preserves signal integrity when undersampling 70MHz+ IFs without external jitter cleaners. |
| Flexible output interface | CMOS/DDR CMOS/DDR LVDS selectable via SPI or parallel pins - eliminates need for external level translators in mixed-voltage systems. |
| Low-power operating modes | Nap mode (10mW) and sleep mode (1mW) - enables rapid power-state transitions in battery-powered portable medical imaging devices. |
| Programmable input range | 1VP-P to 2VP-P differential - adapts to varying signal chain gain without external attenuators or amplifiers. |
| On-chip reference options | Internal 1.25V ±1.2% reference or external 0.625–1.3V via SENSE pin - supports both cost-sensitive and high-accuracy applications. |
| Serial configuration port | 4-wire SPI interface (CS/SCK/SDI/SDO) - allows runtime reconfiguration of output format, randomizer, and clock stabilizer without hardware changes. |
Applications
| Cellular Base Stations | Software Defined Radios |
|---|---|
|
Use Scenario: Digitizing 70MHz LTE uplink IF signals in multi-carrier remote radio heads. IC Role / Device Role / Timing Role: Primary ADC capturing wideband spectrum with minimal quantization noise and spurious content. Use Value: 90dB SFDR prevents adjacent-channel leakage into neighboring 20MHz carriers; 76.3dB SNR ensures >12 ENOB for accurate channel estimation. |
Use Scenario: Reconfigurable IF sampling in military SATCOM terminals supporting multiple waveform standards. IC Role / Device Role / Timing Role: High-dynamic-range ADC with programmable output format and SPI-controlled features. Use Value: DDR LVDS outputs interface directly with Xilinx Zynq UltraScale+ FPGA GTY transceivers; nap mode reduces idle power by 90% during waveform switching. |
| Portable Medical Imaging | Multichannel Data Acquisition |
|
Use Scenario: Beamformed ultrasound receive path in handheld echocardiography systems. IC Role / Device Role / Timing Role: Low-power, high-SNR ADC sampling 10–20MHz echo returns with precise timing alignment. Use Value: 108mW dissipation enables 16-channel integration within thermal limits; 550MHz BW supports harmonic imaging modes. |
Use Scenario: Simultaneous sampling of 8–16 sensor channels in industrial vibration monitoring systems. IC Role / Device Role / Timing Role: Precision ADC with deterministic latency (6.5 cycles pipeline) for synchronized time-of-flight analysis. Use Value: ±2LSB INL ensures linearity across temperature; SPI configuration allows per-channel gain/offset calibration in firmware. |
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-80 | 16-bit, 80Msps, JESD204B serial output; higher power (340mW); no internal reference. | Requires FPGA with JESD204B PHY; better suited for high-channel-count systems needing reduced interconnect count. | Select when serial interface and deterministic lane alignment outweigh power and board space constraints. |
| LTC2263IUH#PBF | 16-bit, 80Msps, 40-lead QFN; lower SFDR (85dB), higher power (145mW); no DDR LVDS option. | Compatible footprint but lacks DDR LVDS and clock duty cycle stabilizer - limits IF undersampling flexibility. | Choose only if legacy design reuse is mandatory and SFDR >88dB is not required. |
Compared with AD9268BCPZ-80 and LTC2263IUH#PBF, the LTC2163IUK#PBF uniquely balances ultra-low jitter (0.09psRMS), flexible parallel outputs, and sub-110mW power - making it optimal for space-constrained, thermally sensitive IF digitization where deterministic latency and ease of FPGA interfacing are critical.
Availability
LTC2163IUK#PBF is available at Aetrix Electronics and suitable for cellular base stations, portable medical imaging systems, and multichannel data acquisition requiring stable component supply across extended temperature ranges (–40°C to +85°C).
Supply support for LTC2163IUK#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 acquired Linear Technology in 2017, inheriting its high-performance signal chain portfolio including precision ADCs, DACs, and analog front-ends.
The LTC2163IUK#PBF belongs to the LTC216x family of ultralow-jitter, low-power 16-bit ADCs designed specifically for demanding communications and instrumentation applications requiring high dynamic range at IF frequencies.
FAQ
What is the maximum sampling rate supported by the LTC2163IUK#PBF?
The LTC2163IUK#PBF supports a maximum sampling rate of 80Msps, as specified in its ordering part number and confirmed in the Electrical Characteristics table (fS = 1 to 80MHz, min/typ/max). This rate is guaranteed over the full –40°C to +85°C industrial temperature range and aligns with its optimized power/performance point for 16-bit resolution.
Does the LTC2163IUK#PBF include an internal voltage reference?
Yes, the LTC2163IUK#PBF includes an internal 1.25V ±1.2% reference (VREF pin 45), which can be used directly or overridden by an external reference applied to the SENSE pin (0.625V–1.3V). The internal reference is characterized over temperature and supports full 16-bit performance without external components.
Can the LTC2163IUK#PBF operate with a 1.2V digital output supply (OVDD)?
Yes, the LTC2163IUK#PBF supports OVDD from 1.1V to 1.9V, including 1.2V. At 1.2V OVDD, CMOS outputs deliver VOH ≥1.185V and VOL ≤0.010V under 500µA load - enabling direct interfacing with 1.2V FPGA I/O banks while maintaining rail-to-rail logic margins.
What is the purpose of the PAR/SER pin on the LTC2163IUK#PBF?
The PAR/SER pin (Pin 9) selects between serial SPI programming mode (PAR/SER = GND) and parallel programming mode (PAR/SER = VDD). In serial mode, CS/SCK/SDI/SDO form a 4-wire SPI interface for full register control; in parallel mode, those pins become dedicated logic inputs for simplified configuration of key functions like clock stabilizer and output format.
How does the LTC2163IUK#PBF achieve ultralow jitter performance?
The LTC2163IUK#PBF achieves 0.09psRMS jitter in differential encode mode through a proprietary sample-and-hold architecture with optimized clock distribution and on-die noise isolation. Its jitter specification is measured with differential ENC+/ENC– inputs and is independent of external clock source quality - enabling reliable undersampling of 70MHz+ signals without external jitter cleaners.
LTC2163IUK#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):
- 80M
- 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:
- -
LTC2163IUK#PBF FAQ
1.How can I place an order for LTC2163IUK#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2163IUK#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 LTC2163IUK#PBF reliable?
The price and inventory of LTC2163IUK#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2163IUK#PBF is usually 5 days.
3.What payment methods are accepted for LTC2163IUK#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2163IUK#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2163IUK#PBF?
LTC2163IUK#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2163IUK#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 LTC2163IUK#PBF?
For technical support, including LTC2163IUK#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2163IUK#PBF requirements.
6.How does Aetrix verify that LTC2163IUK#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2163IUK#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 LTC2163IUK#PBF meets industry standards.
7.What is the process for return or replacement of LTC2163IUK#PBF?
All LTC2163IUK#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2163IUK#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 LTC2163IUK#PBF part is unused and in its original packaging.
Return procedure for LTC2163IUK#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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