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Analog Devices Inc. LTC2282CUP#PBF
- Part No.:
- LTC2282CUP#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-WFQFN Exposed Pad
- Datasheet:
-
LTC2282CUP#PBF.pdf
- Description:
- IC ADC 12BIT PIPELINED 64QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,883
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Product details
Overview
LTC2282CUP#PBF from Analog Devices (formerly Linear Technology) is a dual 12-bit, 105Msps low-power analog-to-digital converter operating from a single 3V supply. It delivers 70.1dB SNR and 85dB SFDR at Nyquist, with ±0.4LSB INL and 575MHz full-power bandwidth, targeting high-fidelity digitization in communications receivers and medical imaging front-ends.
For engineers reviewing the LTC2282CUP#PBF datasheet, LTC2282CUP#PBF pinout, LTC2282CUP#PBF application, or LTC2282CUP#PBF equivalent, key selection criteria include dual-channel synchronization, 110dB channel isolation at 100MHz, flexible 1VP-P to 2VP-P input range, clock duty cycle stabilization, and QFN-64 package thermal performance for high-density RF signal chains.
Technical Context
The LTC2282CUP#PBF implements a six-stage CMOS pipelined ADC architecture per channel, achieving 5-cycle pipeline latency and supporting simultaneous sampling of two independent analog signals. Its internal 1.5V reference and SENSE-pin programmable input range (±0.5V to ±1V) enable precise DC-coupled or transformer-coupled front-end interfacing.
It features separate analog (VDD) and digital output (OVDD) supplies-OVDD configurable from 0.5V to 3.6V-to drive diverse logic families, while integrated clock duty cycle stabilizer maintains AC performance across 30%–70% input clock duty cycles without external circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit with guaranteed no missing codes over temperature-ensures monotonicity in closed-loop control and spectral analysis applications. |
| Sample Rate | 105Msps maximum-supports real-time digitization of IF signals up to 52.5MHz (Nyquist-limited) in broadband wireless infrastructure. |
| SNR @ 5MHz | 70.1dBFS-enables ≥11.3 effective bits for high-fidelity baseband signal capture in portable ultrasound systems. |
| SFDR @ 70MHz | 72dBc (2nd/3rd harmonic)-suppresses spurious tones critical for adjacent-channel rejection in LTE/WiMAX receivers. |
| Channel Isolation | 110dB at 100MHz-prevents crosstalk-induced measurement error when digitizing differential I/Q paths in software-defined radios. |
| Power Dissipation | 540mW at full speed-balances performance and thermal load in space-constrained 9mm × 9mm QFN layouts for embedded instrumentation. |
| Input Bandwidth | 575MHz full-power-preserves transient fidelity for pulsed radar and time-of-flight sensing waveforms without amplitude roll-off. |
Pinout & Package
Package: 64-lead (9mm × 9mm) plastic QFN with exposed pad (Pin 65), rated for 0°C to 70°C operation (C-grade). Exposed pad must be soldered to PCB ground for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AINA+, AINA− (1, 2) | Channel A differential analog input | Accepts ±0.5V to ±1V swing around 1.5V common mode; requires matched 100Ω source impedance for optimal SFDR. |
| CLKA, CLKB (8, 9) | Independent channel clock inputs | Positive-edge triggered; supports asynchronous sampling or synchronized dual-channel acquisition with shared clock routing. |
| DA0–DA11, DB0–DB11 (43–48, 51–56; 26–30, 33–39) | 12-bit parallel digital outputs per channel | Configurable offset binary or 2's complement format via MODE pin; OVDD-supplied drivers interface directly to FPGA I/O banks. |
| SHDNA, SHDNB (59, 22) | Per-channel shutdown control | Enables nap mode (15mW/channel) or sleep mode (2mW/channel) to reduce power during idle periods in battery-powered test equipment. |
| MUX (21) | Digital output bus multiplexer control | Selects channel-to-bus mapping: high = A→DAx/OFA, B→DBx/OFB; low = swapped-allows single-bus time-division multiplexing. |
| SENSEA, SENSEB (62, 19) | Input range programming pins | Direct connection to VCMA/VCMB sets ±0.5V range; VDD connection selects ±1V range-no external resistors required. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated dual 12-bit ADC cores | Eliminates inter-chip skew and timing mismatch-critical for I/Q demodulation accuracy in coherent receiver architectures. |
| Clock duty cycle stabilizer | Compensates for >20% duty cycle distortion without external PLL, enabling direct use of crystal oscillators or FPGA clocks. |
| Flexible input voltage range | 1VP-P to 2VP-P programmable via SENSE pins-supports both transformer-coupled RF inputs and op-amp-driven baseband signals. |
| 110dB channel isolation | Minimizes signal leakage between channels at RF frequencies-essential for simultaneous multi-band spectrum monitoring. |
| Shutdown and nap modes | Reduces power to 2mW or 15mW per channel-extends battery life in handheld spectrum analyzers and portable diagnostic tools. |
Applications
| Wireless Base Station Receiver | Medical Ultrasound Beamformer |
|---|---|
Use Scenario: Digitizing dual-path I/Q downconverted signals from RF front-end in LTE/FDD-TDD macrocell base stations. IC Role / Device Role / Timing Role: Dual-channel synchronous sampling ADC providing time-aligned 12-bit data streams to FPGA-based digital downconverters. Use Value: 110dB channel isolation prevents I/Q crosstalk-induced EVM degradation; 70.1dB SNR ensures >11 ENOB for accurate modulation error analysis. |
Use Scenario: Capturing echo return signals from phased-array transducers in portable ultrasound machines. IC Role / Device Role / Timing Role: High-speed dual ADC acquiring time-synchronized RF echo data from adjacent transducer elements for beam steering. Use Value: 575MHz input bandwidth preserves pulse fidelity of short-duration echoes; low 0.3LSBRMS transition noise improves image contrast resolution. |
| Spectral Analysis Instrumentation | Portable Test & Measurement Equipment |
Use Scenario: Real-time FFT-based frequency domain analysis in handheld spectrum analyzers covering 0–100MHz span. IC Role / Device Role / Timing Role: Dual ADC feeding parallel processing paths-one for real-time display, one for deep memory capture. Use Value: 85dB SFDR enables detection of weak spurs 85dB below carrier; 105Msps sample rate supports 52.5MHz instantaneous bandwidth. |
Use Scenario: Multi-function data acquisition in field-deployable oscilloscope modules with dual-channel analog inputs. IC Role / Device Role / Timing Role: Low-power dual ADC delivering synchronized waveform data to ARM Cortex-M7 host processor via parallel bus. Use Value: 540mW total power allows fanless operation in compact enclosures; QFN-64 package enables <100mm² PCB footprint. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, 12-bit, high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9233BCPZ-105 | Single-channel 12-bit 105Msps ADC; no integrated dual-core or channel isolation spec; requires external clock distribution for dual use. | Lacks native dual-channel synchronization-suitable only when external timing alignment is acceptable. | Choose AD9233BCPZ-105 only if system design permits discrete clock routing and accepts higher board-level complexity. |
| LTC2284IUP#PBF | Pin-compatible 14-bit variant with same QFN-64 package; 69.5dB SNR (vs. 70.1dB), 88dB SFDR, and higher 720mW power draw. | Provides 2 extra LSBs for dynamic range extension in precision instrumentation where SNR margin is critical. | Select LTC2284IUP#PBF when 14-bit resolution justifies +33% power increase and thermal derating in sealed enclosures. |
Compared with AD9233BCPZ-105 and LTC2284IUP#PBF, the LTC2282CUP#PBF uniquely delivers true dual-channel synchronization with 110dB isolation in a thermally optimized QFN, making it optimal for space-constrained, multi-channel RF digitization where inter-channel coherence is non-negotiable.
Availability
LTC2282CUP#PBF is available at Aetrix Electronics and suitable for wireless infrastructure, medical imaging, spectral analysis, and portable instrumentation requiring stable component supply across extended production lifecycles.
Supply support for LTC2282CUP#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 semiconductors.
The LTC2282CUP#PBF belongs to Linear's high-speed ADC product line, engineered specifically for demanding communications and imaging systems requiring low power, high SNR, and dual-channel coherence without external timing compensation.
FAQ
What is the operating temperature range for the LTC2282CUP#PBF?
The LTC2282CUP#PBF is specified for commercial-grade operation from 0°C to 70°C. This range is validated per the Absolute Maximum Ratings table and applies to all DC and AC specifications unless otherwise noted in the datasheet conditions. The 'C' suffix explicitly denotes this temperature grade, distinguishing it from the industrial-grade LTC2282IUP#PBF (–40°C to 85°C).
Does the LTC2282CUP#PBF support single-ended analog input drive?
Yes, the LTC2282CUP#PBF supports single-ended input drive: connect AIN+ to the signal and AIN– to 1.5V (VCM) or a stable DC bias. However, harmonic distortion and INL degrade relative to differential drive-SNR and DNL remain unchanged. For optimal SFDR, differential drive with matched ≤100Ω source impedance is strongly recommended.
How does the MODE pin configure output format and clock stabilization on the LTC2282CUP#PBF?
The MODE pin on the LTC2282CUP#PBF controls both output coding and clock duty cycle stabilizer: 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. This single-pin configuration simplifies layout versus separate control lines.
What is the purpose of the SENSEA and SENSEB pins on the LTC2282CUP#PBF?
SENSEA and SENSEB pins program the analog input range per channel: connecting to VCMA/VCMB selects ±0.5V range; connecting to VDD selects ±1V range; applying an external voltage between 0.5V and 1V sets ±VSENSE range. This eliminates external resistor dividers and enables rapid range reconfiguration in multi-standard test equipment.
Can the LTC2282CUP#PBF drive 1.8V logic interfaces directly?
Yes, the LTC2282CUP#PBF can drive 1.8V logic: configure OVDD = 1.8V and verify output levels meet VOH ≥ 1.79V and VOL ≤ 0.09V at 1.6mA sink current. The datasheet guarantees these values for OVDD = 1.8V, enabling direct interface to modern low-voltage FPGAs and microcontrollers without level shifters.
LTC2282CUP#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:
- 0°C ~ 70°C
- Supplier Device Package:
- 64-QFN (9x9)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2282CUP#PBF FAQ
1.How can I place an order for LTC2282CUP#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2282CUP#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 LTC2282CUP#PBF reliable?
The price and inventory of LTC2282CUP#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2282CUP#PBF is usually 5 days.
3.What payment methods are accepted for LTC2282CUP#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2282CUP#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2282CUP#PBF?
LTC2282CUP#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2282CUP#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 LTC2282CUP#PBF?
For technical support, including LTC2282CUP#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2282CUP#PBF requirements.
6.How does Aetrix verify that LTC2282CUP#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2282CUP#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 LTC2282CUP#PBF meets industry standards.
7.What is the process for return or replacement of LTC2282CUP#PBF?
All LTC2282CUP#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2282CUP#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 LTC2282CUP#PBF part is unused and in its original packaging.
Return procedure for LTC2282CUP#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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