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Analog Devices Inc. LTC2299CUP#PBF
- Part No.:
- LTC2299CUP#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-WFQFN Exposed Pad
- Datasheet:
-
LTC2299CUP#PBF.pdf
- Description:
- IC ADC 14BIT PIPELINED 64QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,901
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Product details
Overview
LTC2299CUP#PBF from Analog Devices (formerly Linear Technology) is a dual 14-bit, 80Msps low-power analog-to-digital converter operating from a single 3V supply (2.7V–3.4V), delivering 73dB SNR and 90dB SFDR at 70MHz input frequency, with 110dB channel isolation at 100MHz - deployed in high-speed imaging and broadband communications signal chains.
For engineers reviewing the LTC2299CUP#PBF datasheet, LTC2299CUP#PBF pinout, LTC2299CUP#PBF application, or LTC2299CUP#PBF equivalent, key selection criteria include dual-channel AC performance at Nyquist-plus frequencies, flexible 1VP-P to 2VP-P differential input range, clock duty cycle stabilization, multiplexed or separate 14-bit LVCMOS output buses, and operation across 0°C to 70°C.
Technical Context
The LTC2299CUP#PBF implements a six-stage CMOS pipelined ADC architecture per channel, with pipeline latency of 5 conversion cycles and aperture jitter of 0.2psRMS. Each channel features independent sample-and-hold with 575MHz full-power bandwidth and integrated 1.5V common-mode bias (VCMA/VCMB).
It supports dual independent clocks (CLKA/CLKB) or synchronized operation, configurable output format (offset binary or 2's complement) via MODE pin, and selectable power modes - normal (444mW), nap (15mW per channel), and shutdown (2mW per channel) - all controlled by SHDNA/SHDNB and OEA/OEB pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit with no missing codes - guarantees monotonicity and full code coverage for precision digitization. |
| Sample Rate | 80Msps maximum - enables real-time capture of signals up to 40MHz baseband or wideband IF sampling beyond Nyquist. |
| SNR @ 70MHz | 73dBFS - defines usable dynamic range for high-frequency signal analysis in spectral or communication applications. |
| SFDR @ 70MHz | 90dBc - determines spurious-free resolution for multi-tone or modulated signal acquisition without harmonic masking. |
| Channel Isolation | 110dB at 100MHz - ensures minimal crosstalk between A/B channels during simultaneous wideband sampling. |
| Power Dissipation | 444mW at 80Msps - enables thermally constrained embedded and portable instrumentation designs with dual-ADC functionality. |
| Analog Supply | 2.7V–3.4V single VDD - simplifies power delivery versus dual-supply ADCs while maintaining DC accuracy (±1.2LSB INL typ). |
Pinout & Package
64-lead (9mm × 9mm) plastic QFN package with exposed thermal pad (Pin 65 = GND), requiring soldering to PCB ground plane for thermal and electrical integrity. Pin count and layout conform to standard UP package footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AINA+, AINA− AINB+, AINB− |
Differential analog inputs (Ch A & Ch B) | Accept ±0.5V to ±1V differential swing; require matched 100Ω source impedance for optimal SFDR. |
| CLKA, CLKB | Single-ended sampling clock inputs | Positive-edge triggered; support independent or synchronized sampling; duty cycle stabilizer enabled via MODE pin. |
| DA0–DA13, DB0–DB13 | 14-bit parallel digital outputs (Ch A & Ch B) | LVCMOS-compatible; output voltage swing referenced to OVDD (0.5V–3.6V); MSB-aligned, LSB-first timing. |
| MODE, MUX, SHDNA, SHDNB OEA, OEB |
Configuration & control logic inputs | Set output format (offset/2's comp), bus multiplexing, and per-channel power modes (normal/nap/shutdown). |
| SENSEA, SENSEB VCMA, VCMB |
Reference programming & common-mode bias | Configure input range (±0.5V/±1V); provide 1.5V bias for differential drive; bypass with ≥2.2µF ceramic capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 14-bit ADC cores | Enables simultaneous sampling of two high-bandwidth signals without interleaving artifacts or timing skew. |
| Integrated clock duty cycle stabilizer | Permits high AC performance across 30%–70% input clock duty cycles - eliminates external duty cycle correction circuitry. |
| Multiplexed or separate digital output buses | Reduces PCB trace count via MUX pin control - allows shared 14-bit bus for space-constrained systems. |
| Flexible analog input range (1VP-P to 2VP-P) | Supports direct interface to RF transformers or differential amplifiers without external gain stages. |
| Low-power nap and shutdown modes | Reduces per-channel consumption to 15mW (nap) or 2mW (shutdown) - extends battery life in portable instrumentation. |
Applications
| Wireless Base Station Receiver | Medical Ultrasound Imaging |
|---|---|
Use Scenario: Digitizing dual-channel IF signals from quadrature downconverters in LTE/5G macrocell receivers. IC Role / Device Role / Timing Role: Dual-channel ADC capturing I/Q data streams at 80Msps with <110dB inter-channel isolation to preserve phase coherence. Use Value: Enables high-fidelity demodulation of wideband OFDM signals without crosstalk-induced EVM degradation. |
Use Scenario: Sampling echo return signals from phased-array transducers in portable ultrasound systems. IC Role / Device Role / Timing Role: Simultaneous acquisition of multiple beamformed channels with sub-0.2ps aperture jitter for time-of-flight accuracy. Use Value: Supports >15cm imaging depth resolution at 10MHz center frequency with 73dB SNR preserving tissue contrast. |
| Spectral Analysis Instrumentation | Defense Radar Front End |
Use Scenario: Real-time FFT-based spectrum monitoring across 100MHz instantaneous bandwidth in handheld analyzers. IC Role / Device Role / Timing Role: Dual ADC feeding FPGA-based FFT engine; 90dB SFDR prevents spurious masking of weak adjacent-channel signals. Use Value: Achieves –150dBm/Hz noise floor with 14-bit ENOB, enabling detection of low-level emitters in crowded RF environments. |
Use Scenario: Digitizing L-band or S-band radar returns in electronic warfare receivers requiring rapid pulse analysis. IC Role / Device Role / Timing Role: High-isolation dual sampling of STALO-mixed IF outputs to suppress false alarms from cross-coupled clutter. Use Value: 110dB channel isolation at 100MHz minimizes ghost target generation during simultaneous multi-beam processing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2284IUP#PBF | 14-bit, 105Msps, higher power (640mW), same 64-pin QFN package | Better SFDR (92dB) at 70MHz but requires tighter clock jitter control and higher supply current | Select when system demands >80Msps sampling with identical feature set and pinout compatibility. |
| AD9257BSTZ-80 | 14-bit, 80Msps, JESD204B serial output, 48-lead LFCSP, lower power (340mW) | Reduces PCB routing complexity via serial interface but adds FPGA/JESD204B PHY overhead | Choose for space-constrained designs where serial interface and lower thermal load outweigh parallel bus simplicity. |
Compared with LTC2299CUP#PBF, LTC2284IUP#PBF offers higher speed at increased power and jitter sensitivity, while AD9257BSTZ-80 trades parallel bus convenience for serial interface efficiency and reduced board area - both require revalidation of analog front-end and timing constraints.
Availability
LTC2299CUP#PBF is available at Aetrix Electronics and suitable for wireless infrastructure, medical imaging, spectral analysis, and defense electronics requiring stable component supply with guaranteed 0°C to 70°C industrial temperature grade.
Supply support for LTC2299CUP#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 LTC2299CUP#PBF belongs to Linear's high-speed precision ADC product line, designed specifically for demanding digitization tasks in communications, instrumentation, and imaging where dual-channel synchronization, low jitter, and wide dynamic range are critical.
FAQ
What is the operating temperature range for the LTC2299CUP#PBF?
The LTC2299CUP#PBF is specified for 0°C to 70°C ambient operation (C-grade). This is confirmed in the Absolute Maximum Ratings table and applies to all AC/DC specifications unless otherwise noted. The "C" suffix in the part number explicitly denotes this commercial temperature grade, distinct from the I-grade (–40°C to 85°C) variant LTC2299IUP#PBF.
Does the LTC2299CUP#PBF support single-ended analog input?
Yes, the LTC2299CUP#PBF supports single-ended input: drive AIN+ with the signal and tie AIN− to 1.5V (VCMA or VCMB). However, datasheet notes confirm harmonic distortion and INL degrade in this mode, while SNR and DNL remain unchanged - so single-ended use is viable only when distortion is not critical.
How does the MODE pin configure clock duty cycle stabilization on the LTC2299CUP#PBF?
On the LTC2299CUP#PBF, the MODE pin sets both output format and duty cycle stabilizer: GND disables stabilizer (offset binary); 1/3 VDD enables it (offset binary); 2/3 VDD enables it (2's complement); VDD disables it (2's complement). Stabilizer operation is confirmed in Timing Characteristics and Functional Description sections.
What is the purpose of the exposed pad (Pin 65) on the LTC2299CUP#PBF?
Pin 65 is the exposed thermal pad, electrically connected to GND. Per the Package/Order Information section, it must be soldered to the PCB ground plane to ensure proper thermal dissipation (θJA = 20°C/W) and electrical stability - failure to do so risks exceeding TJMAX = 125°C and degrading SNR/SFDR performance.
Can the LTC2299CUP#PBF operate with OVDD = 1.8V for interfacing to modern FPGAs?
Yes, the LTC2299CUP#PBF supports OVDD from 0.5V to 3.6V. At OVDD = 1.8V, VOH is guaranteed ≥1.79V and VOL ≤0.09V under 1.6mA load - fully compatible with 1.8V LVCMOS FPGA I/O banks. Power supply current (IOVDD) scales accordingly, as verified in Figure 2299 G17.
LTC2299CUP#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:
- 14
- 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:
- 0°C ~ 70°C
- Supplier Device Package:
- 64-QFN (9x9)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2299CUP#PBF FAQ
1.How can I place an order for LTC2299CUP#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2299CUP#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 LTC2299CUP#PBF reliable?
The price and inventory of LTC2299CUP#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2299CUP#PBF is usually 5 days.
3.What payment methods are accepted for LTC2299CUP#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2299CUP#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2299CUP#PBF?
LTC2299CUP#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2299CUP#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 LTC2299CUP#PBF?
For technical support, including LTC2299CUP#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2299CUP#PBF requirements.
6.How does Aetrix verify that LTC2299CUP#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2299CUP#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 LTC2299CUP#PBF meets industry standards.
7.What is the process for return or replacement of LTC2299CUP#PBF?
All LTC2299CUP#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2299CUP#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 LTC2299CUP#PBF part is unused and in its original packaging.
Return procedure for LTC2299CUP#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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