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Analog Devices Inc. LTC2207IUK#PBF
- Part No.:
- LTC2207IUK#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
LTC2207IUK#PBF.pdf
- Description:
- IC ADC 16BIT PIPELINED 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:178
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Product details
Overview
LTC2207IUK#PBF from Analog Devices (formerly Linear Technology) is a 16-bit, 105Msps high-speed analog-to-digital converter optimized for wideband RF/IF sampling up to 700MHz full-power bandwidth. It features 78.2dBFS noise floor, 100dB spurious-free dynamic range (SFDR), and 80fsRMS aperture jitter - enabling undersampling of cellular, radar, and spectrum analysis signals with high fidelity. Its PGA front end supports 1.5VP-P or 2.25VP-P input ranges, and separate OVDD allows CMOS output swing from 0.5V to 3.6V.
For engineers reviewing the LTC2207IUK#PBF datasheet, LTC2207IUK#PBF pinout, LTC2207IUK#PBF application, or LTC2207IUK#PBF equivalent, key selection criteria include its guaranteed –40°C to +85°C industrial temperature rating, 48-pin 7mm × 7mm QFN package, differential clock interface with optional duty cycle stabilizer, and support for dithering and output randomization to suppress digital coupling artifacts in dense PCB layouts.
Technical Context
The LTC2207IUK#PBF employs a 16-bit pipelined ADC architecture with integrated sample-and-hold, internal reference generator, and correction logic. Its analog front end includes a programmable gain amplifier (PGA) that configures input full-scale between 1.5VP-P and 2.25VP-P, directly affecting SNR and SFDR trade-offs across frequency bands.
Timing is governed by differential ENC+/ENC– inputs supporting PECL/LVDS/TTL/CMOS drive, with pipeline latency fixed at 7 cycles and aperture delay jitter specified at 80fsRMS. Output formatting (offset binary or 2's complement) and clock duty cycle stabilization are controlled via the MODE pin, while RAND enables LSB-driven XOR-based output randomization to reduce spectral line emissions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 96.3dB theoretical SNR, suitable for high-fidelity signal capture in baseband and IF sampling. |
| Sample Rate | 105Msps - supports Nyquist-zone sampling of signals up to 52.5MHz or undersampling of RF carriers up to 700MHz. |
| Noise Floor | 78.2dBFS - enables detection of low-level signals in presence of strong interferers, critical for spectrum analyzers and receivers. |
| SFDR | 100dBc (2nd/3rd harmonic, 5MHz input) - ensures clean digitization without spurious mixing products degrading channel separation. |
| Aperture Jitter | 80fsRMS - limits sampling uncertainty, preserving ENOB above 14 bits even at 140MHz input frequencies. |
| Input Bandwidth | 700MHz full-power - allows direct RF sampling of LTE, WiMAX, and radar IF stages without external anti-alias filtering. |
| Power Dissipation | 900mW at 105Msps - requires thermal-aware layout with exposed pad soldered to PCB ground plane for reliable operation. |
Pinout & Package
Package: 48-lead 7mm × 7mm plastic QFN with exposed thermal pad (Pin 49 = GND). Requires soldering of exposed pad for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN+, AIN– | Differential analog input | Accepts 1.5VP-P or 2.25VP-P differential signal; common-mode voltage set to 1.25V via VCM pin. |
| ENC+, ENC– | Differential encode clock input | Sampling edge defined by ENC+ rising / ENC– falling; supports wide-duty-cycle clocks when DCS enabled. |
| D0–D15 | Parallel CMOS data outputs | 16-bit MSB-first offset binary or 2's complement; output voltage swing configurable via OVDD (0.5V–3.6V). |
| CLKOUT+, CLKOUT– | Data valid strobe outputs | Complementary LVDS-like timing reference for latching D0–D15; enables synchronous capture with minimal skew (±0.6ns). |
| PGA, MODE, RAND, DITH, OE, SHDN | Configuration control inputs | Set gain (1×/1.5×), output format, clock stabilization, dither, randomization, output enable, and shutdown state. |
| VCM | Analog input common-mode bias | 1.25V output requiring ≥2.2μF bypass; sets optimal DC level for differential input stage. |
| SENSE | Reference mode select | Tie to VDD for internal 2.5V bandgap reference; supports external 1.25V/2.5V references for precision scaling. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Gain Amplifier (PGA) | Selects 1× (2.25VP-P) or 1.5× (1.5VP-P) input range to optimize SNR/SFDR trade-off per signal amplitude and frequency. |
| Optional Internal Dither | Reduces harmonic distortion and quantization noise correlation, improving SFDR by up to 10dB at –25dBFS input levels. |
| Output Randomizer (RAND) | Applies LSB-driven XOR to D1–D15, spreading digital switching energy across spectrum to ease EMI compliance in mixed-signal systems. |
| Separate Output Supply (OVDD) | Decouples digital I/O power from analog VDD, enabling interface to 1.8V/2.5V/3.3V logic without level shifters or noise coupling. |
| Out-of-Range Indicator (OF) | Dedicated open-drain flag signals over- or under-flow events in real time, enabling fast AGC or saturation recovery in closed-loop systems. |
Applications
| Cellular Base Station Receiver | Spectrum Analyzer Front End |
|---|---|
Use Scenario: Digitizing 20MHz LTE uplink IF at 184MHz with –1dBFS input level in a macrocell radio unit. IC Role / Device Role / Timing Role: High-speed ADC capturing wide instantaneous bandwidth; uses PGA=1 and dither=ON to maintain >95dB SFDR at 140MHz. Use Value: Eliminates need for analog downconversion stages, reducing component count and phase noise while preserving adjacent-channel rejection. | Use Scenario: Real-time FFT-based spectral monitoring from 10kHz to 250MHz in portable field test equipment. IC Role / Device Role / Timing Role: Direct RF sampling ADC with 700MHz bandwidth; leverages CLKOUT± for deterministic data capture timing. Use Value: Enables 64K-point FFT at 105Msps with <1LSB DNL, delivering ±0.5dB amplitude accuracy across full span without calibration. |
| Radar Signal Acquisition | Automated Test Equipment (ATE) |
Use Scenario: Capturing pulsed L-band radar returns (1–2GHz IF) with nanosecond timing resolution in defense EW systems. IC Role / Device Role / Timing Role: Undersampling ADC with 80fsRMS jitter; uses S/H acquisition delay compensation and pipeline latency awareness for precise pulse edge alignment. Use Value: Achieves <10ps time-of-flight resolution on 100ns pulses, enabling sub-meter target discrimination. | Use Scenario: High-throughput parametric testing of RF components using swept-tone stimulus and coherent capture. IC Role / Device Role / Timing Role: Precision digitizer synchronized to stimulus generator via shared clock domain; OE and SHDN support burst-mode power gating. Use Value: Delivers 14.2 ENOB at 10MHz, meeting IEEE 1057 Class A requirements for metrology-grade ATE digitizers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9268BCPZ-105 | 16-bit, 105Msps, but uses serial JESD204B interface instead of parallel CMOS; higher power (1.2W); no PGA or internal dither. | Requires FPGA with JESD204B PHY; better suited for space-constrained, high-channel-count systems where serialization reduces routing complexity. | Choose AD9268BCPZ-105 when migrating to serial interface architecture or needing multi-device synchronization via subclass 1 JESD204B. |
| LTC2208IUK#PBF | Pin-compatible 16-bit upgrade with 125Msps sample rate, improved SFDR (>102dBc at 5MHz), and lower 75fsRMS jitter; same 48-QFN package and pinout. | Drop-in replacement for higher throughput or tighter jitter budgets; retains identical control logic and power sequencing. | Choose LTC2208IUK#PBF when system design allows marginal increase in power (950mW) and requires extended Nyquist zone or enhanced spurious performance. |
Compared with AD9268BCPZ-105, the LTC2207IUK#PBF offers simpler parallel interfacing and built-in signal conditioning (PGA/dither/RAND), while LTC2208IUK#PBF provides a seamless performance uplift within identical footprint and control architecture - making it ideal for lifecycle refresh without PCB revision.
Availability
LTC2207IUK#PBF is available at Aetrix Electronics and suitable for cellular infrastructure, spectrum monitoring, radar signal processing, and automated test equipment requiring stable component supply across extended industrial temperature ranges.
Supply support for LTC2207IUK#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 LTC2207IUK#PBF belongs to ADI's high-speed precision ADC product line, engineered for demanding RF/IF digitization tasks where dynamic range, jitter, and thermal stability are critical - especially in 5G infrastructure and electronic warfare systems.
FAQ
What is the operating temperature range of the LTC2207IUK#PBF?
The LTC2207IUK#PBF is rated for industrial operation from –40°C to +85°C, verified across all AC and DC specifications in the datasheet. This distinguishes it from the commercial-grade LTC2207CUK#PBF (0°C to 70°C) and ensures reliability in base station outdoor units, radar enclosures, and factory-floor ATE systems where ambient temperatures fluctuate widely.
Does the LTC2207IUK#PBF require an external reference voltage?
No - the LTC2207IUK#PBF includes an internal 2.5V bandgap reference. Connecting the SENSE pin to VDD activates it, setting full-scale range to 2.25VP-P (PGA = 0). An external 1.25V or 2.5V reference may be used for improved accuracy or system-level reference sharing, but is not required for functional operation of the LTC2207IUK#PBF.
How does the PGA setting affect the LTC2207IUK#PBF's dynamic performance?
Setting PGA = high configures the LTC2207IUK#PBF for 1.5VP-P input range (gain = 1.5×), lowering full-scale voltage and improving SNR for small signals but reducing headroom. At 140MHz input, SNR drops ~0.5dB and SFDR decreases ~2dB compared to PGA = low (2.25VP-P), as confirmed in Figure G21 of the LTC2207 datasheet - a trade-off explicitly designed into the LTC2207IUK#PBF for flexible signal chain optimization.
Can the LTC2207IUK#PBF operate with single-ended clock inputs?
Yes - the ENC+ and ENC– inputs of the LTC2207IUK#PBF accept single-ended drive (e.g., TTL, CMOS, or sine wave) referenced to 1.6V common mode. The datasheet specifies VICM = 1.4V to 3V for externally set common mode, and internal biasing allows robust single-ended operation without external termination resistors, though differential drive is recommended for lowest jitter in the LTC2207IUK#PBF.
What is the purpose of the RAND pin on the LTC2207IUK#PBF?
The RAND pin on the LTC2207IUK#PBF enables digital output randomization: when asserted high, it XORs D0 (LSB) with D1–D15, spectrally dispersing switching noise from the parallel bus. This reduces narrowband EMI emissions - a verified design technique used in EMC-critical applications like medical imaging and military comms where the LTC2207IUK#PBF is deployed.
LTC2207IUK#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 48-WFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 105M
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- 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:
- 3.135V ~ 3.465V
- Voltage - Supply, Digital:
- 3.135V ~ 3.465V
- Features:
- PGA
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 48-QFN (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2207IUK#PBF FAQ
1.How can I place an order for LTC2207IUK#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2207IUK#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 LTC2207IUK#PBF reliable?
The price and inventory of LTC2207IUK#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2207IUK#PBF is usually 5 days.
3.What payment methods are accepted for LTC2207IUK#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2207IUK#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2207IUK#PBF?
LTC2207IUK#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2207IUK#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 LTC2207IUK#PBF?
For technical support, including LTC2207IUK#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2207IUK#PBF requirements.
6.How does Aetrix verify that LTC2207IUK#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2207IUK#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 LTC2207IUK#PBF meets industry standards.
7.What is the process for return or replacement of LTC2207IUK#PBF?
All LTC2207IUK#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2207IUK#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 LTC2207IUK#PBF part is unused and in its original packaging.
Return procedure for LTC2207IUK#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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