Analog Devices Inc. LTC2289IUP#TRPBF
- Part No.:
- LTC2289IUP#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-WFQFN Exposed Pad
- Datasheet:
-
LTC2289IUP#TRPBF.pdf
- Description:
- IC ADC 10BIT PIPELINED 64QFN
- Quantity:
- Payment:

- Shipping:

Inventory:1,344
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Product details
Overview
LTC2289IUP#TRPBF from Analog Devices (formerly Linear Technology) is a dual 10-bit, 80Msps low-noise 3V analog-to-digital converter optimized for high-frequency wide-dynamic-range signal digitization in communications and imaging systems. It delivers 61.6dB SNR at 70MHz input, 85dB SFDR, and 110dB channel isolation at 100MHz, operating from a single 2.7V–3.4V supply with 422mW total power consumption.
For engineers reviewing the LTC2289IUP#TRPBF datasheet, LTC2289IUP#TRPBF pinout, LTC2289IUP#TRPBF application, or LTC2289IUP#TRPBF equivalent, key selection considerations include its dual-channel synchronous sampling architecture, flexible 1VP-P to 2VP-P differential input range, clock duty cycle stabilizer support, and multiplexed/parallel digital output bus configuration for space-constrained RF front ends.
Technical Context
The LTC2289IUP#TRPBF implements a six-stage CMOS pipelined ADC architecture per channel, achieving 5-cycle pipeline latency with aperture jitter of just 0.2psRMS. Its sample-and-hold circuit features 575MHz full-power bandwidth and supports both independent CLKA/CLKB inputs or synchronized operation via shared clock and MUX control.
It integrates dual independent reference paths (REFHA/REFLA and REFLB/REFHB), programmable input ranges via SENSEA/SENSEB pins, and configurable output formats (offset binary or 2's complement) controlled by the MODE pin. The device supports three power states-normal, nap (15mW/channel), and shutdown (2mW/channel)-with separate output enable (OEA/OEB) and shutdown (SHDNA/SHDNB) pins per channel.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit with no missing codes; ensures monotonic transfer function critical for spectral analysis fidelity. |
| Sample Rate | 80Msps maximum; enables Nyquist-limited baseband capture up to 40MHz or undersampled IF digitization at higher frequencies. |
| SNR @ 70MHz | 61.6dBFS; defines usable dynamic range for demanding wireless receiver applications with strong interferers. |
| SFDR @ 70MHz | 85dBc; determines spurious-free resolution for multi-tone communication signals like LTE or DOCSIS. |
| Channel Isolation | –110dB at 100MHz; prevents crosstalk-induced distortion in dual-path architectures such as I/Q demodulators. |
| Input Bandwidth | 575MHz full-power bandwidth; supports direct RF sampling of L-band and lower S-band signals without external amplification. |
| Power Consumption | 422mW at 80Msps (both channels active); balances performance and thermal budget in compact instrumentation designs. |
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 |
|---|---|---|
| AINA+, AINA– | Channel A differential analog input | Accepts ±0.5V to ±1V differential swing; common-mode bias set via VCMA or external source. |
| AINB+, AINB– | Channel B differential analog input | Independent input path; enables true simultaneous sampling for time-aligned I/Q or stereo acquisition. |
| CLKA, CLKB | Channel-specific clock inputs | Positive-edge triggered; supports asynchronous or phase-synchronized sampling across channels. |
| DA0–DA9, DB0–DB9 | Digital output buses (MSB-first) | Configurable via MUX pin: either dedicated busses or time-multiplexed onto one 10-bit bus with OFA/OFB overflow flags. |
| SHDNA, SHDNB | Per-channel shutdown control | Combines with OEA/OEB to select normal, nap (15mW), or shutdown (2mW) mode independently per channel. |
| MODE | Output format & clock stabilizer control | Selects offset binary/2's complement output and enables/disables internal duty cycle stabilizer for wide-input-clock tolerance. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 10-bit ADC cores | Enables true simultaneous sampling for phase-coherent I/Q demodulation or stereo data acquisition without interleaving artifacts. |
| Integrated clock duty cycle stabilizer | Allows high AC performance with non-50% clock duty cycles (e.g., from PLLs or dividers), eliminating need for external DCS circuitry. |
| Flexible 1VP-P to 2VP-P input range | Programmable via SENSEA/SENSEB pins; matches varying signal chain gain stages without external attenuation or amplification. |
| 110dB channel-to-channel isolation | Maintains signal integrity in dual-path systems (e.g., phased array receivers) where leakage between paths degrades beamforming accuracy. |
| Low 0.08LSBRMS transition noise | Minimizes quantization uncertainty in high-resolution measurement applications such as portable spectrum analyzers. |
Applications
| Wireless Base Station Receiver | Medical Ultrasound Beamformer |
|---|---|
Use Scenario: Digitizing dual-channel IF signals from quadrature downconverters in LTE/FDD-TDD macrocell radios. IC Role / Device Role / Timing Role: Dual synchronous ADC capturing I and Q baseband streams with matched gain, offset, and phase response. Use Value: 110dB channel isolation prevents image rejection degradation; 85dB SFDR supports adjacent-channel interference suppression per 3GPP requirements. |
Use Scenario: High-speed sampling of echo return signals from multiple transducer elements in real-time B-mode imaging. IC Role / Device Role / Timing Role: Time-aligned dual-channel digitization enabling precise time-of-flight calculation and dynamic focusing. Use Value: 61.6dB SNR preserves low-amplitude tissue contrast; 575MHz input bandwidth supports harmonic imaging up to 15MHz center frequency. |
| Portable Spectrum Analyzer Front End | Digital Oscilloscope Acquisition Subsystem |
Use Scenario: Real-time FFT-based spectral monitoring in handheld RF test equipment covering 10kHz–1GHz. IC Role / Device Role / Timing Role: Dual ADC feeding parallel processing paths for magnitude/phase computation and envelope detection. Use Value: Low 0.08LSBRMS transition noise ensures accurate amplitude binning in 8192-point FFTs; nap mode reduces battery load during idle periods. |
Use Scenario: High-fidelity waveform capture in 100MHz+ bandwidth benchtop oscilloscopes with segmented memory architecture. IC Role / Device Role / Timing Role: Dual-channel acquisition engine supporting interleaved or independent channel modes with deterministic latency. Use Value: 80Msps sample rate with 5-cycle pipeline latency enables precise trigger timing; multiplexed bus option saves FPGA I/O resources. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2288IUP#TRPBF | 65Msps max sample rate; identical 10-bit resolution, package, and feature set except lower speed grade. | Better suited for cost-sensitive or lower-bandwidth applications (e.g., audio analyzers, legacy comms standards) where 80Msps is unnecessary. | Select when system clock constraints or power budgets favor reduced throughput without sacrificing SNR/SFDR specs. |
| AD9233BCPZ-80 | Single-channel 12-bit, 80Msps ADC; higher resolution but no native dual-channel synchronization or channel isolation spec. | Requires two devices and external timing alignment for dual-path use; lacks integrated crosstalk mitigation for tightly coupled I/Q paths. | Choose only if 12-bit resolution is mandatory and board area allows dual-device layout with careful clock distribution. |
Compared with LTC2288IUP#TRPBF and AD9233BCPZ-80, the LTC2289IUP#TRPBF uniquely delivers guaranteed 110dB channel isolation and true dual-channel synchronization in a single 9mm × 9mm QFN, making it optimal for phase-critical RF and ultrasound systems where inter-channel coherence is non-negotiable.
Availability
LTC2289IUP#TRPBF is available at Aetrix Electronics and suitable for wireless infrastructure, medical imaging, portable test equipment, and high-speed data acquisition requiring stable component supply across industrial temperature ranges (–40°C to +85°C).
Supply support for LTC2289IUP#TRPBF 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 LTC2289IUP#TRPBF belongs to ADI's high-speed precision ADC product line, engineered specifically for demanding RF and instrumentation applications requiring simultaneous dual-channel sampling, ultra-low noise, and robust channel-to-channel isolation.
FAQ
What is the operating temperature range for the LTC2289IUP#TRPBF?
The LTC2289IUP#TRPBF is rated for industrial operation from –40°C to +85°C, as indicated by the "I" grade suffix in the part number. This extended range supports deployment in outdoor wireless base stations, medical ultrasound systems, and field-deployable test equipment where ambient temperatures exceed commercial limits.
Does the LTC2289IUP#TRPBF support single-ended analog inputs?
Yes, the LTC2289IUP#TRPBF supports single-ended drive: connect AIN+ to the signal and AIN– to VCM (1.5V) or a stable 1.5V reference. However, harmonic distortion and INL degrade versus differential mode; SNR and DNL remain unaffected. For best performance, differential drive is strongly recommended.
How does the clock duty cycle stabilizer in the LTC2289IUP#TRPBF improve system design?
The clock duty cycle stabilizer in the LTC2289IUP#TRPBF allows high AC performance (61.6dB SNR, 85dB SFDR) even with input clock duty cycles ranging from 30% to 70%. This eliminates the need for external duty cycle correction circuits when using PLLs or frequency dividers with asymmetric outputs, simplifying clock tree design and reducing bill-of-materials cost.
Can the LTC2289IUP#TRPBF operate with different output supply voltages (OVDD)?
Yes, the LTC2289IUP#TRPBF supports OVDD from 0.5V to 3.6V, enabling direct interfacing with 1.8V, 2.5V, or 3.3V logic families without level shifters. Output drive strength scales with OVDD: at 1.8V, VOH is 1.79V (IO = –200µA); at 3V, VOH reaches 2.99V (IO = –200µA), ensuring robust signal integrity across voltage domains.
What is the purpose of the SENSEA and SENSEB pins on the LTC2289IUP#TRPBF?
The SENSEA and SENSEB pins on the LTC2289IUP#TRPBF configure each channel's full-scale input range: connecting to VCMA/VCMB selects ±0.5V (1VP-P), to VDD selects ±1V (2VP-P), or to an external reference (0.5V–1V) sets ±VSENSE. This allows dynamic matching to upstream amplifier gain without external resistive scaling, preserving SNR and minimizing distortion.
LTC2289IUP#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 64-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 80M
- Number of Inputs:
- 2
- Input Type:
- Differential, Single Ended
- Data Interface:
- 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:
- 2.7V ~ 3.4V
- Voltage - Supply, Digital:
- 2.7V ~ 3.4V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 64-QFN (9x9)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2289IUP#TRPBF FAQ
1.How can I place an order for LTC2289IUP#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2289IUP#TRPBF 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 LTC2289IUP#TRPBF reliable?
The price and inventory of LTC2289IUP#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2289IUP#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2289IUP#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2289IUP#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2289IUP#TRPBF?
LTC2289IUP#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2289IUP#TRPBF 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 LTC2289IUP#TRPBF?
For technical support, including LTC2289IUP#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2289IUP#TRPBF requirements.
6.How does Aetrix verify that LTC2289IUP#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2289IUP#TRPBF 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 LTC2289IUP#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2289IUP#TRPBF?
All LTC2289IUP#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2289IUP#TRPBF, 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 LTC2289IUP#TRPBF part is unused and in its original packaging.
Return procedure for LTC2289IUP#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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