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Analog Devices Inc. LTC2242CUP-10#PBF
- Part No.:
- LTC2242CUP-10#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-WFQFN Exposed Pad
- Datasheet:
-
LTC2242CUP-10#PBF.pdf
- Description:
- IC ADC 10BIT PIPELINED 64QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,580
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Product details
Overview
LTC2242CUP-10#PBF from Analog Devices (formerly Linear Technology) is a 10-bit, 250Msps pipelined analog-to-digital converter optimized for high-frequency signal digitization in communications infrastructure. It delivers 60.5dB SNR, 78dB SFDR at 70MHz input, and 95fsRMS aperture jitter, enabling IF undersampling in wireless base stations and cable head-end systems.
For engineers reviewing the LTC2242CUP-10#PBF datasheet, LTC2242CUP-10#PBF pinout, LTC2242CUP-10#PBF application, or LTC2242CUP-10#PBF equivalent, key selection criteria include full-power bandwidth (1.2GHz), dual-output interface flexibility (LVDS/CMOS/demux CMOS), ±0.4LSB INL, shutdown/napping power modes, and 64-pin QFN package thermal performance.
Technical Context
The LTC2242CUP-10#PBF implements a five-stage pipelined ADC architecture with integrated sample-and-hold, correction logic, and flexible reference programming via SENSE pin. Its differential analog input supports ±0.5V or ±1V ranges, and internal 1.25V VCM bias enables precise common-mode control.
Digital output options include LVDS (247–454mV differential swing), full-rate CMOS (0.5–2.625V OVDD), or demultiplexed CMOS buses with interleaved/simultaneous update. Clock interface accepts differential (LVDS/PECL) or single-ended (TTL/CMOS) inputs, with optional duty cycle stabilizer for robust timing across wide duty cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit with guaranteed no missing codes over temperature - ensures monotonicity in closed-loop feedback systems. |
| Sampling Rate | 250Msps - supports Nyquist sampling of signals up to 125MHz or IF undersampling of multi-GHz RF bands. |
| SNR / SFDR | 60.5dB SNR and 78dB SFDR at 70MHz - enables high-fidelity digitization of LTE/WiMAX carriers with low error vector magnitude. |
| Aperture Jitter | 95fsRMS - limits sampling-time uncertainty to <0.02° phase error at 200MHz input, critical for wideband modulation accuracy. |
| Full-Power BW | 1.2GHz - allows direct digitization of L-band and S-band RF signals without external pre-filtering or downconversion. |
| Power Dissipation | 740mW (CMOS mode) / 975mW (LVDS mode) - balances performance and thermal load in dense RF front-end PCB layouts. |
| Analog Supply | Single 2.5V VDD (2.375–2.625V) - simplifies power delivery and reduces BOM count versus dual-supply ADCs. |
Pinout & Package
64-pin 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. Package meets JEDEC MS-026 standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN+, AIN– (Pins 1–4) | Differential analog input pair | Accepts ±0.5V or ±1V differential signal; requires matched trace routing and 100Ω termination for optimal dynamic performance. |
| ENC+, ENC– (Pins 17–18) | Differential encode clock inputs | Edge-triggered sampling; supports PECL/LVDS/TTL/CMOS; duty cycle stabilizer enabled via MODE pin configuration. |
| DA0–DA9, DB0–DB9 (Pins 27–32, 35–36, 44–48, 51–55) | Digital output buses (A/B) | In demux CMOS mode: DA = even samples, DB = odd samples; in LVDS mode: D0±–D9± are fully differential outputs. |
| LVDS (Pin 57) | Output mode selection | Logic level determines interface: 0V = full-rate CMOS, VDD = LVDS, 1/3VDD = demux simultaneous, 2/3VDD = demux interleaved. |
| SENSE (Pin 59) | Reference and input range programming | Connect to VCM for ±0.5V range, to VDD for ±1V range, or to external voltage (0.5–1V) for custom ±VSENSE range. |
| SHDN, OE (Pins 19–20) | Power management control | Combination selects Normal (outputs active), Nap (28mW), or Sleep (1mW) mode - essential for burst-mode receiver power optimization. |
Key Features
| Feature | Design Value |
|---|---|
| Flexible digital interface | Configurable LVDS, full-rate CMOS, or demultiplexed CMOS (interleaved/simultaneous) - adapts to FPGA I/O voltage and timing constraints without external logic. |
| Programmable input range | ±0.5V or ±1V via SENSE pin - eliminates need for external gain stages when interfacing with different RF mixer output levels. |
| Low-power operation modes | Nap (28mW) and Sleep (1mW) states reduce system power during idle periods - critical for energy-constrained remote radio units. |
| High-precision internal reference | 1.25V ±25mV VCM with ±35ppm/°C tempco - enables stable DC-coupled operation without external reference ICs or trimming. |
| Robust clock interface | Differential ENC+/ENC– with optional duty cycle stabilizer - maintains timing margin under noisy clock distribution or PLL drift conditions. |
Applications
| Wireless Base Station Receiver | Cable Modem Termination System (CMTS) |
|---|---|
Use Scenario: Digitizing multiple 80MHz-wide DOCSIS 3.1 upstream channels centered at 5–85MHz. IC Role / Device Role / Timing Role: High-speed ADC front-end capturing composite QAM signals with minimal quantization noise and harmonic distortion. Use Value: 78dB SFDR prevents adjacent-channel interference; 1.2GHz full-power bandwidth avoids anti-alias filter complexity before digitization. |
Use Scenario: Sampling downstream OFDM symbols in 192MHz-wide DOCSIS 4.0 channels at 250Msps. IC Role / Device Role / Timing Role: Wideband digitizer feeding FPGA-based FFT and channel estimation blocks. Use Value: 60.5dB SNR preserves EVM below 3.5% for 4096-QAM; LVDS outputs drive long traces to FPGA banks with low EMI. |
| RF Power Amplifier Linearization | Communications Test Equipment |
Use Scenario: Capturing PA output for digital predistortion (DPD) coefficient calculation in 5G mMIMO transceivers. IC Role / Device Role / Timing Role: Feedback path ADC synchronizing with transmit DAC clocks to capture nonlinear PA behavior. Use Value: 95fsRMS jitter ensures accurate phase alignment between Tx/Rx paths; ±0.4LSB INL minimizes DPD model error floor. |
Use Scenario: Signal acquisition stage in vector signal analyzers measuring spectral purity of 5G NR waveforms. IC Role / Device Role / Timing Role: High-fidelity digitizer enabling >70dB spurious-free analysis of adjacent channel leakage ratio (ACLR). Use Value: 78dB SFDR directly supports ACLR measurements per 3GPP TS 38.141; 250Msps sampling captures 100MHz+ analysis bandwidths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9236BCPZ-125 | 12-bit, 125Msps; lower sampling rate but higher resolution; 72dB SFDR at 70MHz; 1.8V supply only | Better for narrowband high-SNR applications (e.g., spectrum monitoring); insufficient for 250Msps real-time capture | Select when resolution > speed; avoid for DOCSIS 4.0 or 5G FR1 real-time analysis where 250Msps is mandatory. |
| LTC2262IUP-12#PBF | 12-bit, 105Msps; same QFN-64 package; 75dB SFDR; 1.25V internal reference; 2.5V analog supply | Higher resolution at lower speed; optimized for lower power (480mW); lacks duty cycle stabilizer and SENSE-programmable range | Choose for cost-sensitive test equipment needing 12-bit fidelity at ≤105Msps; not suitable for IF undersampling above 100MHz. |
Compared with AD9236BCPZ-125 and LTC2262IUP-12#PBF, the LTC2242CUP-10#PBF uniquely balances 250Msps throughput, 1.2GHz analog bandwidth, and configurable interface - making it irreplaceable in wideband communications receivers requiring real-time digitization without decimation.
Availability
LTC2242CUP-10#PBF is available at Aetrix Electronics and suitable for wireless infrastructure, cable head-end systems, and RF test equipment requiring stable component supply with industrial temperature grade (0°C to 70°C) and RoHS-compliant lead-free finish.
Supply support for LTC2242CUP-10#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 communications, industrial, automotive, and healthcare markets.
The LTC2242CUP-10#PBF belongs to ADI's high-speed data converter product line, designed specifically for demanding communications infrastructure applications requiring wide bandwidth, low jitter, and flexible digital interfacing in compact QFN packages.
FAQ
What is the operating temperature range for the LTC2242CUP-10#PBF?
The LTC2242CUP-10#PBF is rated for 0°C to 70°C ambient operation (C-grade). This is confirmed by the "C" suffix in the part number and explicitly stated in the Absolute Maximum Ratings table. It is not rated for industrial (–40°C to +85°C) or extended temperature ranges - those require the LTC2242IUP-10#PBF variant.
Does the LTC2242CUP-10#PBF support both LVDS and CMOS digital outputs simultaneously?
No, the LTC2242CUP-10#PBF supports only one output interface mode at a time, selected by the LVDS pin voltage. When LVDS = VDD, outputs are LVDS; when LVDS = 0V, outputs are full-rate CMOS; intermediate voltages configure demultiplexed CMOS modes. Simultaneous LVDS and CMOS output is not supported.
How is the input full-scale range configured on the LTC2242CUP-10#PBF?
The LTC2242CUP-10#PBF uses the SENSE pin (Pin 59) to set input range: connecting SENSE to VCM selects ±0.5V, to VDD selects ±1V, or to an external voltage between 0.5V and 1V selects ±VSENSE. This is a hardware-configured, non-volatile setting - no register writes or SPI commands are required.
What is the pipeline latency of the LTC2242CUP-10#PBF, and how does it affect system synchronization?
The LTC2242CUP-10#PBF has a fixed 5-cycle pipeline latency in all output modes (full-rate CMOS, demux interleaved, demux simultaneous). This means the digitized value for sample N appears at the output 5 clock cycles after the ENC+ edge that triggered its acquisition - a deterministic delay critical for time-aligned Tx/Rx calibration in DPD systems.
Can the LTC2242CUP-10#PBF operate with a single-ended analog input?
No - the LTC2242CUP-10#PBF is designed exclusively for differential analog input (AIN+, AIN–). The functional block diagram, pin functions, and all AC/DC specifications assume differential drive. Single-ended input would degrade CMRR, increase even-order harmonics, and void specified SNR/SFDR performance.
LTC2242CUP-10#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):
- 250M
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- LVDS - Parallel, 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:
- 2.375V ~ 2.625V
- Voltage - Supply, Digital:
- 2.375V ~ 2.625V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 64-QFN (9x9)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2242CUP-10#PBF FAQ
1.How can I place an order for LTC2242CUP-10#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2242CUP-10#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 LTC2242CUP-10#PBF reliable?
The price and inventory of LTC2242CUP-10#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2242CUP-10#PBF is usually 5 days.
3.What payment methods are accepted for LTC2242CUP-10#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2242CUP-10#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2242CUP-10#PBF?
LTC2242CUP-10#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2242CUP-10#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 LTC2242CUP-10#PBF?
For technical support, including LTC2242CUP-10#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2242CUP-10#PBF requirements.
6.How does Aetrix verify that LTC2242CUP-10#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2242CUP-10#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 LTC2242CUP-10#PBF meets industry standards.
7.What is the process for return or replacement of LTC2242CUP-10#PBF?
All LTC2242CUP-10#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2242CUP-10#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 LTC2242CUP-10#PBF part is unused and in its original packaging.
Return procedure for LTC2242CUP-10#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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