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Analog Devices Inc. LTC2282IUP#PBF
- Part No.:
- LTC2282IUP#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-WFQFN Exposed Pad
- Datasheet:
-
LTC2282IUP#PBF.pdf
- Description:
- IC ADC 12BIT PIPELINED 64QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,372
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Product details
Overview
LTC2282IUP#PBF from Analog Devices (formerly Linear Technology) is a dual 12-bit, 105 Msps low-power analog-to-digital converter operating from a single 3V supply. It delivers 70.1 dB SNR and 85 dB SFDR at Nyquist, with ±0.4 LSB INL and 575 MHz full-power bandwidth, targeting high-fidelity digitization in broadband communications and imaging systems.
For engineers reviewing the LTC2282IUP#PBF datasheet, LTC2282IUP#PBF pinout, LTC2282IUP#PBF application, or LTC2282IUP#PBF equivalent, key selection criteria include dual-channel synchronization, 110 dB channel isolation at 100 MHz, flexible 1 VP-P to 2 VP-P input range, clock duty cycle stabilization, and QFN-64 package compatibility with thermal management via exposed pad.
Technical Context
The LTC2282IUP#PBF implements a six-stage CMOS pipelined ADC architecture per channel, achieving 5-cycle pipeline latency and supporting simultaneous sampling of two independent analog inputs. Its internal 1.5 V reference, programmable input range via SENSEA/SENSEB pins, and separate OVDD output supply enable interoperability with 0.5 V–3.6 V logic families.
It features independent shutdown (SHDNA/SHDNB), nap/sleep modes, multiplexed or parallel digital output buses (controlled by MUX pin), and clock duty cycle stabilization for robust operation across wide duty cycle variations - all while maintaining 70.1 dB SNR up to 70 MHz input frequency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit with no missing codes over temperature - guarantees monotonicity and full code coverage in closed-loop control or spectral analysis. |
| Sample Rate | 105 Msps maximum - supports real-time digitization of IF signals up to 52.5 MHz without aliasing under Nyquist criterion. |
| SNR @ 5 MHz | 70.1 dBFS - enables >11-bit effective resolution for low-noise baseband signal capture in portable instrumentation. |
| SFDR @ 70 MHz | 72–84 dBc - suppresses spurious tones critical for LTE/WiMAX receiver dynamic range and adjacent channel rejection. |
| Channel Isolation | 110 dB at 100 MHz - prevents crosstalk-induced measurement error in dual-path phased-array radar or I/Q demodulation. |
| Power Dissipation | 540 mW typical at 105 Msps - balances performance and thermal load in space-constrained 9 mm × 9 mm QFN layouts. |
| Input Bandwidth | 575 MHz full-power - preserves fidelity of fast-rising pulses and wideband modulated signals without amplitude roll-off. |
Pinout & Package
Package: 64-lead (9 mm × 9 mm) plastic QFN 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 ±0.5 V to ±1 V input range; requires matched 100 Ω source impedance for optimal SFDR. |
| CLKA, CLKB | Independent channel clock inputs | Positive-edge triggered; support asynchronous or synchronized sampling; duty cycle stabilizer optional. |
| DA0–DA11, DB0–DB11 | 12-bit parallel digital outputs per channel | Configurable offset binary or 2's complement format; output voltage swing referenced to OVDD (0.5–3.6 V). |
| SHDNA, SHDNB | Per-channel shutdown control | Enables independent power gating: nap mode (15 mW/channel), sleep mode (2 mW/channel). |
| SENSEA, SENSEB | Input range programming pins | Select ±0.5 V (tie to VCMA/VCMB), ±1 V (tie to VDD), or custom range (external 0.5–1 V reference). |
| MODE | Output format & duty cycle stabilizer control | GND = offset binary + stabilizer off; 1/3 VDD = offset binary + stabilizer on; VDD = 2's complement + stabilizer off. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 12-bit ADC cores | Enables time-aligned I/Q sampling or parallel channel acquisition without external synchronization circuitry. |
| 110 dB channel-to-channel isolation | Eliminates inter-channel interference in dual-antenna receivers or multi-sensor data acquisition systems. |
| Flexible 1 VP-P to 2 VP-P input range | Supports direct interfacing to RF transformers, op-amp drivers, or DC-coupled signal chains without gain adjustment. |
| Integrated clock duty cycle stabilizer | Removes timing jitter sensitivity to clock asymmetry-critical for stable ENOB in FPGA-based sampling systems. |
| Separate OVDD output supply rail | Allows direct interface to 1.8 V, 2.5 V, or 3.3 V logic without level shifters, reducing BOM count and layout complexity. |
| 575 MHz full-power analog bandwidth | Maintains amplitude accuracy for ultra-wideband pulses (e.g., UWB radar) and high-order QAM constellations. |
Applications
| Wireless Base Station Receiver | Medical Ultrasound Beamformer |
|---|---|
|
Use Scenario: Digitizing dual-channel IF signals from quadrature downconverters in LTE/FDD-TDD infrastructure equipment. IC Role / Device Role / Timing Role: Dual-channel ADC capturing synchronized I/Q data streams at 105 Msps with <1 ps RMS aperture jitter. Use Value: 70.1 dB SNR and 85 dB SFDR preserve EVM below 2.5% for 256-QAM, enabling compliant 100 MHz channel bandwidth operation. |
Use Scenario: High-speed sampling of echo return signals from phased-array transducers in portable ultrasound systems. IC Role / Device Role / Timing Role: Low-power dual ADC acquiring time-aligned RF beam samples with 575 MHz analog bandwidth. Use Value: 540 mW total power and 110 dB channel isolation prevent cross-talk between adjacent receive channels during beam steering. |
| Spectral Monitoring Receiver | Portable Spectrum Analyzer |
|
Use Scenario: Real-time wideband spectrum analysis across 0–100 MHz using overlapping FFT windows in SIGINT applications. IC Role / Device Role / Timing Role: Dual ADC feeding FPGA-based polyphase filterbank with independent clock control for gap-free acquisition. Use Value: No missing codes and ±0.4 LSB INL ensure accurate amplitude calibration across full dynamic range for compliance testing. |
Use Scenario: Battery-powered handheld analyzer requiring high-resolution digitization of modulated RF signals up to 50 MHz. IC Role / Device Role / Timing Role: Low-voltage 3V ADC with nap mode (15 mW/channel) enabling >4-hour runtime on Li-ion battery. Use Value: Flexible OVDD (0.5–3.6 V) allows direct connection to 1.8 V FPGA I/O banks, eliminating level-shifter ICs and PCB area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9233BCPZ-105 | 12-bit, 105 Msps, single-channel only; 65 dB SNR; LVDS outputs; requires external reference. | Lacks dual-channel integration - needs two devices and clock skew compensation for I/Q paths. | Choose when LVDS interface and lower power (330 mW) outweigh need for integrated dual-channel sync. |
| LTC2284IUP#PBF | 14-bit, 105 Msps, same pinout and package; 73.5 dB SNR; higher 780 mW power; identical feature set. | Provides 2-bit higher resolution for demanding radar or test equipment where ENOB > 11.5 is mandatory. | Direct drop-in upgrade path when system SNR budget requires >70 dB and layout reuse is critical. |
Compared with AD9233BCPZ-105 and LTC2284IUP#PBF, the LTC2282IUP#PBF uniquely balances dual-channel integration, 70.1 dB SNR, and 540 mW power in a single QFN-64 package - making it optimal for space-constrained, cost-sensitive, and thermally limited dual-path signal chains.
Availability
LTC2282IUP#PBF is available at Aetrix Electronics and suitable for wireless infrastructure, medical ultrasound, spectral monitoring, and portable instrumentation requiring stable component supply across industrial temperature ranges (–40°C to +85°C).
Supply support for LTC2282IUP#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 aerospace, industrial, automotive, and communications markets.
The LTC2282IUP#PBF belongs to ADI's high-speed precision ADC product line, engineered for demanding digitization tasks where dual-channel synchronization, low power, and wide analog bandwidth are essential - especially in compact, thermally constrained systems.
FAQ
What is the operating temperature range for the LTC2282IUP#PBF?
The LTC2282IUP#PBF is rated for industrial temperature operation from –40°C to +85°C, as confirmed by its "I" grade designation and Absolute Maximum Ratings table. This ensures reliable performance in base station radios, outdoor test equipment, and portable medical devices exposed to ambient thermal cycling.
Does the LTC2282IUP#PBF support single-ended analog input?
Yes, the LTC2282IUP#PBF supports single-ended input: drive AIN+ with the signal and tie AIN– to 1.5 V (VCM) or a stable common-mode bias. However, harmonic distortion and INL degrade versus differential drive - SNR and DNL remain unaffected, preserving basic digitization fidelity.
How does the MODE pin configure output format and clock stabilization on the LTC2282IUP#PBF?
The MODE pin on the LTC2282IUP#PBF selects both output coding and clock duty cycle stabilizer state: GND = offset binary + stabilizer off; 1/3 VDD = offset binary + stabilizer on; 2/3 VDD = 2's complement + stabilizer on; VDD = 2's complement + stabilizer off - enabling precise timing and logic interface alignment.
What is the purpose of the exposed pad (Pin 65) on the LTC2282IUP#PBF QFN package?
The exposed pad (Pin 65) on the LTC2282IUP#PBF is electrically connected to GND and serves as the primary thermal and electrical ground path. It must be soldered to a PCB copper pour tied to system ground to ensure thermal dissipation (<20°C/W θJA) and minimize ground bounce in high-speed digital output switching.
Can the LTC2282IUP#PBF operate with different OVDD and VDD supply voltages?
Yes - the LTC2282IUP#PBF separates analog (VDD: 2.85–3.4 V) and digital output (OVDD: 0.5–3.6 V) supplies. This allows direct interfacing to 1.8 V FPGAs or 3.3 V microcontrollers without level shifters, while maintaining analog core integrity and minimizing noise coupling into sensitive analog sections.
LTC2282IUP#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:
- 12
- Sampling Rate (Per Second):
- 105M
- 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:
- 2.85V ~ 3.4V
- Voltage - Supply, Digital:
- 2.85V ~ 3.4V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 64-QFN (9x9)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2282IUP#PBF FAQ
1.How can I place an order for LTC2282IUP#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2282IUP#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 LTC2282IUP#PBF reliable?
The price and inventory of LTC2282IUP#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2282IUP#PBF is usually 5 days.
3.What payment methods are accepted for LTC2282IUP#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2282IUP#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2282IUP#PBF?
LTC2282IUP#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2282IUP#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 LTC2282IUP#PBF?
For technical support, including LTC2282IUP#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2282IUP#PBF requirements.
6.How does Aetrix verify that LTC2282IUP#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2282IUP#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 LTC2282IUP#PBF meets industry standards.
7.What is the process for return or replacement of LTC2282IUP#PBF?
All LTC2282IUP#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2282IUP#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 LTC2282IUP#PBF part is unused and in its original packaging.
Return procedure for LTC2282IUP#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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