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Analog Devices Inc. LTC2150CUJ-12#PBF
- Part No.:
- LTC2150CUJ-12#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
LTC2150CUJ-12#PBF.pdf
- Description:
- IC ADC 12BIT PIPELINED 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,313
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Product details
Overview
LTC2150CUJ-12#PBF from Analog Devices (formerly Linear Technology) is a 12-bit, 170Msps analog-to-digital converter optimized for high-frequency undersampling in communications and instrumentation systems. It delivers 68.5dB SNR, 90dB SFDR, 1.25GHz full-power bandwidth, single 1.8V supply operation, and DDR LVDS outputs - enabling direct digitization of IF signals up to 907MHz in cellular basestations and software-defined radios.
For engineers reviewing the LTC2150CUJ-12#PBF datasheet, LTC2150CUJ-12#PBF pinout, LTC2150CUJ-12#PBF application, or LTC2150CUJ-12#PBF equivalent, key selection criteria include its 170Msps sampling rate, 1.5VP-P differential input range, low-power nap/sleep modes (93mW/2mW), SPI-configurable clock duty cycle stabilizer, and 40-lead 6mm × 6mm QFN package with exposed thermal pad.
Technical Context
The LTC2150CUJ-12#PBF implements a 12-bit pipelined ADC architecture with integrated sample-and-hold (S/H) front-end, correction logic, and DDR LVDS output drivers. Its 1.25GHz full-power bandwidth supports wideband RF/IF sampling, while the optional clock duty cycle stabilizer maintains performance across non-50% duty-cycle clocks.
Digital interface includes a 3-wire SPI port (CS/SCK/SDI/SDO) for configuring operating modes, LVDS current (1.75mA or 3.5mA), sleep/napping, and clock stabilization. The PAR/SER pin selects between serial programming (ground) and parallel control (VDD), enabling flexible system integration without external logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Sampling Rate | 170Msps maximum - enables real-time digitization of wideband IF signals in SDR and test equipment. |
| SNR | 68.5dB at 70MHz input - ensures high-fidelity signal capture for demanding comms applications. |
| SFDR | 90dB at 70MHz input - suppresses spurious tones critical for multi-carrier cellular baseband processing. |
| Input Bandwidth | 1.25GHz full-power - supports undersampling of UHF and L-band RF signals without external filtering. |
| Power Consumption | 306mW total at 170Msps - balances performance and thermal management in dense PCB layouts. |
| Supply Voltage | Single 1.8V analog (VDD) and digital (OVDD) rails - simplifies power delivery and reduces BOM count. |
| Output Interface | DDR LVDS with programmable 1.75mA/3.5mA drive - ensures robust noise immunity and timing margin over FR4 traces. |
Pinout & Package
Package: 40-lead (6mm × 6mm) plastic QFN with exposed thermal pad (Pin 41 = GND). Requires soldering of exposed pad to PCB ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pins 1, 2) | Analog power supply | 1.8V rail for core ADC; requires local 0.1µF ceramic bypass to GND. |
| AIN+, AIN– (Pins 4, 5) | Differential analog input | Accepts 1.5VP-P swing centered at VCM; must be driven differentially with 180° phase alignment. |
| ENC+, ENC– (Pins 11, 12) | Differential encode clock | Conversion triggered on both edges; supports sine, PECL, LVDS, TTL, CMOS inputs. |
| D0_1+ / D0_1– to D10_11+ / D10_11– (Pins 18/19, 22/23, 24/25, 28/29, 31/32, 33/34) | DDR LVDS data outputs | 6 differential pairs carry 12-bit data multiplexed at double rate; each pair outputs even bits on CLKOUT– high, odd bits on CLKOUT+ high. |
| CLKOUT+, CLKOUT– (Pins 26, 27) | Data output clock | Synchronizes DDR LVDS data; phase delay configurable via SPI to align with system timing budget. |
| PAR/SER (Pin 40) | Programming mode select | Ground = serial SPI control; VDD = parallel logic control of sleep, LVDS current, and duty cycle stabilizer. |
Key Features
| Feature | Design Value |
|---|---|
| 1.25GHz full-power bandwidth | Enables direct RF sampling of 907MHz signals at 170Msps without external anti-alias filters. |
| 6-cycle pipeline latency | Minimizes system-level timing uncertainty for closed-loop feedback and real-time processing. |
| Optional clock duty cycle stabilizer | Compensates for non-50% clock duty cycles, preserving AC performance without external clock conditioning. |
| Nap mode (93mW) and Sleep mode (<2mW) | Reduces power during idle periods in battery-powered or thermally constrained instruments. |
| Integrated 1.25V reference with ±30ppm/°C drift | Eliminates need for external reference IC in cost-sensitive medical imaging and portable test gear. |
Applications
| Cellular Basestation Receiver | Software Defined Radio (SDR) |
|---|---|
Use Scenario: Digitizing 70–220MHz IF signals from multi-carrier LTE/FDD receivers in macrocell base stations. IC Role / Device Role / Timing Role: High-speed ADC capturing wide instantaneous bandwidth with minimal spurious content. Use Value: 90dB SFDR prevents intermodulation distortion between adjacent carriers, maintaining EVM compliance. | Use Scenario: Reconfigurable front-end for military/commercial SDR platforms requiring tunable IF sampling up to 907MHz. IC Role / Device Role / Timing Role: Undersampling ADC with programmable LVDS drive strength for FPGA interface optimization. Use Value: 1.25GHz input bandwidth and SPI-configurable modes enable rapid waveform reconfiguration without hardware change. |
| High-Definition Video Test Equipment | Medical Ultrasound Imaging |
Use Scenario: Capturing 120–170MHz video IF signals in automated production testers for 4K/8K broadcast gear. IC Role / Device Role / Timing Role: Precision ADC delivering consistent ENOB across temperature for pass/fail validation. Use Value: ±0.30LSB INL and 0.54LSBRMS transition noise ensure accurate amplitude linearity in video signal analysis. | Use Scenario: Beamforming channel digitization in portable ultrasound systems using 10–15MHz transducer frequencies. IC Role / Device Role / Timing Role: Low-power, high-SNR ADC supporting battery operation and thermal constraints. Use Value: 68.5dB SNR and 93mW nap mode extend battery life while preserving image contrast resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9230-170EBZ | 12-bit, 170Msps; JESD204B output instead of DDR LVDS; higher power (525mW); no integrated clock stabilizer. | Targets FPGA-based systems requiring deterministic lane alignment and lower jitter; less suitable for legacy LVDS interfaces. | Select when migrating to JESD204B infrastructure and needing tighter deterministic latency. |
| LTC2151CUJ-12#PBF | Same family, 210Msps sampling rate; identical pinout, package, and feature set; 333mW power at full speed. | Used where higher throughput is required without changing layout - e.g., upgrading basestation IF bandwidth from 80MHz to 100MHz. | Choose for drop-in speed upgrade with no PCB revision; verify thermal headroom for +26mW increase. |
Compared with AD9230-170EBZ and LTC2151CUJ-12#PBF, the LTC2150CUJ-12#PBF provides optimal balance of LVDS compatibility, ultra-low power at 170Msps, and integrated clock conditioning - making it ideal for space-constrained, thermally sensitive, or legacy-interface designs.
Availability
LTC2150CUJ-12#PBF is available at Aetrix Electronics and suitable for cellular basestation receiver modules, software-defined radio front-ends, high-definition video test equipment, and portable medical ultrasound systems requiring stable component supply across extended production lifecycles.
Supply support for LTC2150CUJ-12#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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies.
The LTC2150 series belongs to Linear's high-speed precision ADC product line, designed specifically for wideband communications, instrumentation, and medical imaging where dynamic range, power efficiency, and ease of interface are critical.
FAQ
What is the maximum sampling rate supported by the LTC2150CUJ-12#PBF?
The LTC2150CUJ-12#PBF supports a maximum sampling rate of 170Msps, as specified in its ordering part number suffix "-12" and confirmed in the DC and dynamic accuracy tables. This rate is guaranteed across the 0°C to 70°C operating temperature range for the "C" grade variant, with typical SNR and SFDR performance maintained at full speed.
Does the LTC2150CUJ-12#PBF require an external reference voltage?
No - the LTC2150CUJ-12#PBF includes an internal 1.25V reference (VREF) with ±30ppm/°C drift and a VCM output (0.439 × VDD) for analog input biasing. An external reference can be applied via the SENSE pin (1.2V–1.3V) to adjust input range, but it is not required for standard 1.5VP-P differential operation.
How is the DDR LVDS output current configured on the LTC2150CUJ-12#PBF?
The DDR LVDS output current on the LTC2150CUJ-12#PBF is programmable via SPI register or parallel control: 1.75mA (low-power mode) or 3.5mA (full-drive mode). In serial mode (PAR/SER = GND), configuration is done through the SDI/SCK/CS interface; in parallel mode (PAR/SER = VDD), SDI directly selects the current level.
What is the function of the PAR/SER pin on the LTC2150CUJ-12#PBF?
The PAR/SER pin on the LTC2150CUJ-12#PBF selects the programming interface mode: grounded for serial SPI control (CS/SCK/SDI/SDO active), or tied to VDD for parallel logic control (CS, SCK, SDI repurposed for sleep, duty cycle stabilizer, and LVDS current selection). It must be hard-wired - not driven dynamically - to ensure reliable initialization.
Can the LTC2150CUJ-12#PBF operate with a non-50% duty cycle clock?
Yes - the LTC2150CUJ-12#PBF includes an optional clock duty cycle stabilizer that can be enabled via SPI or parallel control (CS pin in PAR/SER = VDD mode). When active, it corrects duty cycle deviations to maintain full AC performance, allowing use of asymmetric clocks from PLLs or crystal oscillators without external duty cycle correction circuitry.
LTC2150CUJ-12#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 40-WFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 170M
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- LVDS - 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:
- 0°C ~ 70°C
- Supplier Device Package:
- 40-QFN (6x6)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2150CUJ-12#PBF FAQ
1.How can I place an order for LTC2150CUJ-12#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2150CUJ-12#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 LTC2150CUJ-12#PBF reliable?
The price and inventory of LTC2150CUJ-12#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2150CUJ-12#PBF is usually 5 days.
3.What payment methods are accepted for LTC2150CUJ-12#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2150CUJ-12#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2150CUJ-12#PBF?
LTC2150CUJ-12#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2150CUJ-12#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 LTC2150CUJ-12#PBF?
For technical support, including LTC2150CUJ-12#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2150CUJ-12#PBF requirements.
6.How does Aetrix verify that LTC2150CUJ-12#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2150CUJ-12#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 LTC2150CUJ-12#PBF meets industry standards.
7.What is the process for return or replacement of LTC2150CUJ-12#PBF?
All LTC2150CUJ-12#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2150CUJ-12#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 LTC2150CUJ-12#PBF part is unused and in its original packaging.
Return procedure for LTC2150CUJ-12#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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