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Analog Devices Inc. LTC2288CUP#PBF
- Part No.:
- LTC2288CUP#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-WFQFN Exposed Pad
- Datasheet:
-
LTC2288CUP#PBF.pdf
- Description:
- IC ADC 10BIT PIPELINED 64QFN
- Quantity:
- Payment:
- Shipping:
Inventory:455
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Product details
Overview
LTC2288CUP#PBF from Analog Devices (formerly Linear Technology) is a dual 10-bit, 65Msps analog-to-digital converter operating from a single 3V supply (2.7V–3.4V), delivering 61.8dB SNR and 85dB SFDR at Nyquist with 110dB channel isolation at 100MHz. It features flexible differential input range (±0.5V to ±1V), 575MHz full-power bandwidth, and integrated clock duty cycle stabilizer - designed for high-fidelity digitization in broadband communications and imaging systems.
For engineers reviewing the LTC2288CUP#PBF datasheet, LTC2288CUP#PBF pinout, LTC2288CUP#PBF application, or LTC2288CUP#PBF equivalent, key selection criteria include dual-channel sampling synchronization, low-noise 65Msps performance, output bus multiplexing capability, and compatibility with 1.8V/2.5V/3.3V logic levels via separate OVDD.
Technical Context
The LTC2288CUP#PBF implements a six-stage CMOS pipelined ADC architecture with 5-cycle pipeline latency, supporting independent or synchronized sampling on two channels. Its internal 1.5V reference buffer (VCMA/VCMB), programmable SENSEA/SENSEB inputs, and MODE-selectable offset binary/2's complement output format enable precise input range and data format control.
It integrates a clock duty cycle stabilizer that maintains high AC performance across wide input clock duty cycles, and supports three power states: active (400mW), nap mode (15mW per channel), and shutdown (2mW per channel), all managed via SHDNA/SHDNB and OEA/OEB pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit with no missing codes - guarantees monotonic transfer function for accurate signal reconstruction. |
| Sampling Rate | 65Msps - enables real-time digitization of signals up to 32.5MHz (Nyquist), suitable for IF sampling in wireless receivers. |
| SNR @ 5MHz | 61.8dBFS - defines minimum detectable signal level above quantization + thermal noise floor in baseband applications. |
| SFDR @ 5MHz | 85dBc - ensures spurious-free dynamic range for multi-tone signal analysis without harmonic masking. |
| Channel Isolation | –110dB at 100MHz - prevents crosstalk-induced distortion when digitizing independent high-frequency signals on A/B channels. |
| Input Bandwidth | 575MHz full-power - supports wideband RF/IF sampling without external anti-alias filtering below ~200MHz. |
| Power Dissipation | 400mW at 65Msps - enables thermally constrained PCB layouts in portable instrumentation and dense FPGA-ADC interfaces. |
Pinout & Package
Package: 64-lead (9mm × 9mm) plastic QFN with exposed GND pad (Pin 65), rated for 0°C to 70°C operation (C-grade).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AINA+, AINA– AINB+, AINB– | Differential analog inputs (Ch A/B) | Accept ±0.5V to ±1V differential signals; require matched layout and termination for optimal CMRR and SFDR. |
| CLKA, CLKB | Independent sample clock inputs | Enable asynchronous or synchronous dual-channel sampling; positive-edge triggered with aperture jitter ≤0.2psRMS. |
| DA0–DA9, DB0–DB9 | Parallel digital outputs (10-bit) | Configurable as separate buses or multiplexed via MUX pin; support 0.5V–3.6V logic via OVDD supply. |
| OFA, OFB | Overflow/underflow flags | Indicate saturation events per channel - critical for AGC loop feedback and signal integrity monitoring. |
| SHDNA, SHDNB OEA, OEB | Per-channel shutdown & output enable | Allow independent power gating and tri-state control - essential for dynamic power management in multi-ADC systems. |
| MODE | Output format & clock stabilizer control | Selects offset binary/2's complement and enables/disables duty cycle correction - affects FPGA interface logic design. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 10-bit ADC cores | Enables simultaneous sampling of two RF/IF paths without interleaving artifacts or timing skew compensation. |
| Flexible input range programming | SENSEA/SENSEB pins allow ±0.5V, ±1V, or user-defined ±VSENSE range - simplifies front-end gain staging and eliminates external reference buffers. |
| Separate OVDD supply | Decouples digital I/O voltage (0.5V–3.6V) from analog VDD - permits direct interfacing with 1.8V FPGAs or 3.3V microcontrollers without level shifters. |
| Integrated clock duty cycle stabilizer | Compensates for non-50% clock duty cycles without external circuitry - preserves SNR/SFDR in systems using PLL-based or divided clocks. |
| Per-channel power management | Independent SHDN/OE control allows selective channel disable - reduces system power by >95% when one channel is idle. |
Applications
| Wireless Baseband Receiver | Medical Ultrasound Imaging |
|---|---|
Use Scenario: Digitizing quadrature IF signals (I/Q) from zero-IF or low-IF radio architectures in LTE/5G small cells. IC Role / Device Role / Timing Role: Dual-channel ADC captures synchronized I and Q streams at 65Msps, feeding FPGA-based digital downconversion and channel estimation. Use Value: 110dB channel isolation prevents I/Q crosstalk-induced image rejection degradation; 61.8dB SNR ensures EVM compliance for 256-QAM modulation. | Use Scenario: Beamforming receive path in portable ultrasound machines requiring compact, low-power digitization of echo return signals. IC Role / Device Role / Timing Role: Simultaneously samples multiple transducer elements with matched gain/phase response across both channels. Use Value: 575MHz input bandwidth supports wideband pulse-echo reception up to 20MHz center frequency; low 0.07LSBRMS transition noise preserves tissue contrast resolution. |
| Spectral Monitoring System | Portable Test Equipment |
Use Scenario: Real-time spectrum analysis of wideband RF emissions (e.g., EMC pre-compliance testing) over 0–30MHz span. IC Role / Device Role / Timing Role: High-SFDR dual ADC feeds overlapping FFT windows for high-resolution spectral density mapping. Use Value: 85dB SFDR enables detection of weak spurs ≥85dB below carrier; 65Msps sampling supports 32.5MHz instantaneous bandwidth without aliasing. | Use Scenario: Handheld oscilloscope or signal analyzer with dual-channel time-domain capture capability. IC Role / Device Role / Timing Role: Provides 10-bit, 65Msps digitization for real-time waveform display and trigger processing in battery-powered instruments. Use Value: 400mW total power and C-grade temperature range (0°C–70°C) enable fanless thermal design; MUX-controlled single-bus output reduces FPGA pin count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9236BCPZ-65 | Single 12-bit, 65Msps ADC (not dual); higher resolution but no channel isolation spec; requires external reference. | Best for single-path high-resolution digitization where dual-channel sync is unnecessary. | Select when 12-bit ENOB > 10-bit performance is required and dual-channel operation is not needed. |
| LTC2287CUP#PBF | Same pinout and feature set, but 40Msps max sampling rate and lower power (235mW); identical INL/DNL specs. | Preferred for cost-sensitive or lower-bandwidth applications (e.g., audio spectrum analysis, slower IF sampling). | Choose for reduced power and relaxed timing margins where 40Msps suffices - drop-in compatible with same PCB layout. |
Compared with AD9236BCPZ-65 and LTC2287CUP#PBF, the LTC2288CUP#PBF uniquely delivers dual-channel 65Msps operation with guaranteed –110dB crosstalk, enabling true simultaneous I/Q or multi-sensor acquisition without inter-channel interference - a requirement unmet by single-channel alternatives or lower-speed variants.
Availability
LTC2288CUP#PBF is available at Aetrix Electronics and suitable for wireless infrastructure, medical imaging, spectral analysis, and portable test equipment requiring stable component supply and long-term production continuity.
Supply support for LTC2288CUP#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 LTC2288CUP#PBF belongs to ADI's high-speed precision ADC product line, engineered specifically for demanding digitization tasks where dual-channel synchronization, low noise, and wide input bandwidth are critical - such as software-defined radio and ultrasound beamforming.
FAQ
What is the operating temperature range for the LTC2288CUP#PBF?
The LTC2288CUP#PBF is specified for commercial-grade operation from 0°C to 70°C (C-suffix). This range is validated per the datasheet's "LTC2288C" designation and applies to all DC and AC performance parameters unless otherwise noted. The device uses an exposed-pad QFN package with θJA = 20°C/W, enabling reliable thermal dissipation within this ambient envelope when properly mounted to a thermal pad.
Does the LTC2288CUP#PBF support differential or single-ended analog inputs?
The LTC2288CUP#PBF supports both configurations: differential input is recommended for optimal performance (61.8dB SNR, 85dB SFDR), while single-ended drive is permitted with slightly degraded harmonic distortion. Pins AINA+/AINA– and AINB+/AINB– must be driven differentially for full specification compliance; single-ended use requires proper common-mode biasing via VCMA/VCMB and degrades SFDR by ~5–10dB depending on frequency.
How does the MODE pin affect the LTC2288CUP#PBF's output format and clock functionality?
The MODE pin on the LTC2288CUP#PBF selects both output data format and clock duty cycle stabilizer state: GND = offset binary + stabilizer off; 1V (≈1/3 VDD) = offset binary + stabilizer on; 2V (≈2/3 VDD) = 2's complement + stabilizer on; VDD = 2's complement + stabilizer off. This dual function requires careful coordination with clock source characteristics and downstream FPGA logic implementation.
Can the LTC2288CUP#PBF's two channels share a single digital output bus?
Yes - the LTC2288CUP#PBF supports multiplexed output via the MUX pin: when MUX = LOW, Channel A data appears on DB0–DB9/OFB and Channel B on DA0–DA9/OFA; when MUX = HIGH, the assignments reverse. For true time-multiplexed sharing, tie CLKA = CLKB = MUX and route one 10-bit bus to the processor - reducing interface pin count by 50% at the cost of halved effective throughput per channel.
What are the power supply requirements for the LTC2288CUP#PBF's analog and digital sections?
The LTC2288CUP#PBF requires two independent supplies: VDD (2.7V–3.4V, typ. 3V) powers analog circuitry including the ADC core and references; OVDD (0.5V–3.6V) powers digital output drivers and sets logic-high voltage level. Both supplies must be bypassed per datasheet recommendations (0.1µF ceramic + 2.2µF bulk near each supply pin), and OGND must be tied to GND with low-inductance connection to minimize noise coupling into the analog section.
LTC2288CUP#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 64-WFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 65M
- 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:
- 0°C ~ 70°C
- Supplier Device Package:
- 64-QFN (9x9)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2288CUP#PBF FAQ
1.How can I place an order for LTC2288CUP#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2288CUP#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 LTC2288CUP#PBF reliable?
The price and inventory of LTC2288CUP#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2288CUP#PBF is usually 5 days.
3.What payment methods are accepted for LTC2288CUP#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2288CUP#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2288CUP#PBF?
LTC2288CUP#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2288CUP#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 LTC2288CUP#PBF?
For technical support, including LTC2288CUP#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2288CUP#PBF requirements.
6.How does Aetrix verify that LTC2288CUP#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2288CUP#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 LTC2288CUP#PBF meets industry standards.
7.What is the process for return or replacement of LTC2288CUP#PBF?
All LTC2288CUP#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2288CUP#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 LTC2288CUP#PBF part is unused and in its original packaging.
Return procedure for LTC2288CUP#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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