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Analog Devices Inc. LTC2292CUP#PBF
- Part No.:
- LTC2292CUP#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-WFQFN Exposed Pad
- Datasheet:
-
LTC2292CUP#PBF.pdf
- Description:
- IC ADC 12BIT PIPELINED 64QFN
- Quantity:
- Payment:
- Shipping:
Inventory:165
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Product details
Overview
LTC2292CUP#PBF from Analog Devices (formerly Linear Technology) is a dual 12-bit, 40Msps low-power analog-to-digital converter operating from a single 3V supply. It delivers 71.4dB SNR and 90dB SFDR at 5MHz input, supports ±0.5V to ±1V differential input range, and features 110dB channel isolation at 100MHz - ideal for high-fidelity spectral analysis and portable instrumentation.
For engineers reviewing the LTC2292CUP#PBF datasheet, LTC2292CUP#PBF pinout, LTC2292CUP#PBF application, or LTC2292CUP#PBF equivalent, key selection criteria include its 40Msps sample rate, dual-channel synchronization capability, clock duty cycle stabilizer, flexible output bus multiplexing, and QFN-64 package with exposed thermal pad.
Technical Context
The LTC2292CUP#PBF implements a six-stage CMOS pipelined ADC architecture with integrated sample-and-hold (575MHz full-power bandwidth), internal 1.5V reference, and independent channel shutdown control. Its dual-channel design enables time-aligned sampling without external synchronization circuitry.
It supports both offset binary and 2's complement output formats via the MODE pin, and includes a clock duty cycle stabilizer that maintains performance across 30%–70% input clock duty cycles. Output drivers are independently configurable via OEA/OEB and SHDNA/SHDNB pins, with OVDD supporting 0.5V–3.6V logic levels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit with no missing codes over temperature - guarantees monotonicity in closed-loop control and precision measurement systems. |
| Sample Rate | 40Msps - enables Nyquist-limited digitization of signals up to 20MHz without aliasing in communications receivers. |
| SNR | 71.4dBFS at 5MHz input - provides >11.8 effective number of bits (ENOB) for high-fidelity signal capture in imaging front-ends. |
| SFDR | 90dBc at 5MHz input - suppresses spurious tones critical for detecting weak signals adjacent to strong interferers in spectrum analyzers. |
| Power Dissipation | 235mW at 40Msps (both channels active) - enables thermally constrained portable designs without forced cooling. |
| Input Bandwidth | 575MHz - supports wideband IF sampling of LTE, WiMAX, and radar intermediate frequencies with minimal amplitude roll-off. |
| Channel Isolation | 110dB at 100MHz - prevents crosstalk-induced measurement error in dual-channel phased-array or I/Q demodulator applications. |
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– | Channel A differential analog input | Accepts ±0.5V to ±1V differential signal; requires matched PCB routing for optimal common-mode rejection. |
| CLKA, CLKB | Independent channel clock inputs | Enable asynchronous sampling; rising-edge triggered with aperture delay jitter ≤0.2ps RMS. |
| DA0–DA11, DB0–DB11 | 12-bit parallel digital outputs per channel | Configurable as separate buses or multiplexed via MUX pin; support LVCMOS/LVTTL logic levels via OVDD. |
| OEA, OEB | Output enable controls | Assert low to drive outputs; high-Z state allows bus sharing in multi-ADC systems. |
| SHDNA, SHDNB | Per-channel shutdown controls | Support nap mode (15mW/channel) or shutdown (2mW/channel) for dynamic power scaling. |
| MODE | Output format & duty cycle stabilizer control | Selects offset binary/2's complement and enables/disables internal clock conditioning circuitry. |
| SENSEA, SENSEB | Input range programming pins | Set ±0.5V (tie to VCMA/VCMB), ±1V (tie to VDD), or custom range (external voltage 0.5–1.0V). |
| REFHA/REFLA, REFHB/REFLB | High/low reference pairs per channel | Require local 0.1µF + 2.2µF ceramic bypassing; support internal or external reference configurations. |
Key Features
| Feature | Design Value |
|---|---|
| Dual synchronized ADC cores | Enables simultaneous I/Q sampling or stereo acquisition without inter-channel skew or phase mismatch. |
| Flexible output bus architecture | MUX pin allows either independent 24-bit parallel output or time-multiplexed 12-bit output on shared traces - reduces PCB layer count. |
| Programmable input range | ±0.5V to ±1V differential range selection via SENSE pins - optimizes dynamic range for varying sensor output levels. |
| Integrated clock duty cycle stabilizer | Compensates for non-50% clock duty cycles without external PLL - simplifies clock tree design in FPGA-based systems. |
| Low-noise 1.5V internal reference | ±25ppm/°C tempco and 3mV/V line regulation - eliminates need for external reference in cost-sensitive applications. |
| Thermally enhanced QFN package | Exposed GND pad (Pin 65) soldered to PCB plane achieves θJA = 20°C/W - sustains full performance under continuous 40Msps operation. |
Applications
| Wireless Spectrum Monitoring | Medical Ultrasound Beamforming |
|---|---|
Use Scenario: Real-time RF spectrum scanning across 10–100MHz bands using direct-conversion receiver architecture. IC Role / Device Role / Timing Role: Dual-channel ADC digitizes I/Q baseband signals with precise channel matching and low intermodulation distortion. Use Value: 110dB channel isolation prevents image leakage between I and Q paths; 90dB SFDR enables detection of –90dBc interferers near strong carriers. | Use Scenario: High-channel-count ultrasound probe front-end acquiring echo return signals from multiple transducer elements. IC Role / Device Role / Timing Role: Simultaneous sampling of paired receive channels with sub-ns timing alignment for beam steering coherence. Use Value: 0.25LSBRMS transition noise preserves fine tissue contrast; 575MHz input bandwidth captures harmonics up to 15MHz. |
| Portable Network Analyzer | Digital Oscilloscope Front-End |
Use Scenario: Battery-powered handheld network analyzer performing swept-frequency S-parameter measurements up to 50MHz. IC Role / Device Role / Timing Role: Digitizes reflected/transmitted RF signals after mixer downconversion with calibrated gain and offset matching. Use Value: ±0.3LSB INL and ±0.15LSB DNL ensure <0.05dB magnitude accuracy across full frequency sweep range. | Use Scenario: 100MHz-bandwidth digital storage oscilloscope capturing transient waveforms with 12-bit vertical resolution. IC Role / Device Role / Timing Role: Dual ADC captures interleaved samples to achieve effective 80Msps sampling while maintaining 12-bit fidelity. Use Value: 71.4dB SNR at 40Msps yields >11.5 ENOB - sufficient for 4-digit amplitude measurement resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9233BCPZ-40 | 12-bit, 40Msps, single-channel; no integrated clock stabilizer; higher 250mW power draw | Lacks dual-channel synchronization and multiplexed bus; requires external clock conditioning | Choose when only one channel is needed and board space permits discrete clock cleanup circuitry. |
| LTC2297IUP#PBF | 14-bit, 40Msps, same pinout and package; 235mW power; 74.2dB SNR (typ) | Higher resolution but reduced SFDR (85dB vs 90dB); identical thermal and layout footprint | Choose when system SNR budget allows 2.8dB penalty for 2-bit resolution gain in precision DC-coupled measurements. |
Compared with AD9233BCPZ-40 and LTC2297IUP#PBF, the LTC2292CUP#PBF uniquely balances dual-channel integration, clock flexibility, and 90dB SFDR - making it optimal for RF instrumentation where spurious-free dynamic range and channel correlation are critical.
Availability
LTC2292CUP#PBF is available at Aetrix Electronics and suitable for wireless spectrum monitoring, medical ultrasound beamforming, and portable network analyzer applications requiring stable component supply and long-term production continuity.
Supply support for LTC2292CUP#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 LTC2292CUP#PBF belongs to ADI's high-speed data converter product line, designed specifically for demanding RF and instrumentation applications where dual-channel synchronization, low power, and exceptional AC performance are essential.
FAQ
What is the maximum input frequency supported by the LTC2292CUP#PBF before significant amplitude roll-off occurs?
The LTC2292CUP#PBF has a 575MHz full-power bandwidth, meaning it maintains ≤3dB amplitude response up to 575MHz for a full-scale input. This enables direct sampling of IF signals in UHF radio and radar systems without external amplification or filtering degradation.
Does the LTC2292CUP#PBF require external reference components to operate?
No - the LTC2292CUP#PBF integrates a precision 1.5V reference with ±25ppm/°C tempco and includes internal reference buffers. External bypassing (0.1µF + 2.2µF ceramics per REFH/REFL pair) is required, but no external reference IC is necessary for standard operation.
Can the LTC2292CUP#PBF operate with a 2.5V OVDD supply for interfacing with 2.5V logic families?
Yes - the LTC2292CUP#PBF supports OVDD from 0.5V to 3.6V. At OVDD = 2.5V, VOH is guaranteed ≥2.49V and VOL ≤0.09V under 1.6mA load, ensuring robust compatibility with 2.5V LVTTL and LVCMOS interfaces without level shifters.
How does the clock duty cycle stabilizer in the LTC2292CUP#PBF improve system design?
The clock duty cycle stabilizer in the LTC2292CUP#PBF allows high-performance operation with input clock duty cycles from 30% to 70%, eliminating the need for external clock conditioners or precision 50% duty-cycle sources - reducing BOM cost and PCB area in FPGA- or ASIC-based timing systems.
What thermal management considerations apply to the LTC2292CUP#PBF in continuous 40Msps operation?
The LTC2292CUP#PBF uses a 64-pin QFN with exposed GND pad (Pin 65) that must be soldered to a minimum 200mm² copper pour. With proper thermal vias and 2oz copper, it achieves θJA = 20°C/W, limiting junction temperature rise to ~4.7°C above ambient at 235mW - enabling reliable operation without heatsinks.
LTC2292CUP#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):
- 40M
- 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:
- -
LTC2292CUP#PBF FAQ
1.How can I place an order for LTC2292CUP#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2292CUP#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 LTC2292CUP#PBF reliable?
The price and inventory of LTC2292CUP#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2292CUP#PBF is usually 5 days.
3.What payment methods are accepted for LTC2292CUP#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2292CUP#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2292CUP#PBF?
LTC2292CUP#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2292CUP#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 LTC2292CUP#PBF?
For technical support, including LTC2292CUP#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2292CUP#PBF requirements.
6.How does Aetrix verify that LTC2292CUP#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2292CUP#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 LTC2292CUP#PBF meets industry standards.
7.What is the process for return or replacement of LTC2292CUP#PBF?
All LTC2292CUP#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2292CUP#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 LTC2292CUP#PBF part is unused and in its original packaging.
Return procedure for LTC2292CUP#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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