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Analog Devices Inc. AD9255BCPZRL7-105
- Part No.:
- AD9255BCPZRL7-105
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-VFQFN Exposed Pad, CSP
- Datasheet:
-
AD9255BCPZRL7-105.pdf
- Description:
- IC ADC 14BIT PIPELINED 48LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:4,310
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Product details
Overview
AD9255BCPZRL7-105 from Analog Devices is a 14-bit, 105 MSPS analog-to-digital converter with differential pipeline architecture, 1.8 V analog supply, 650 MHz analog input bandwidth, and selectable CMOS or LVDS DDR outputs-designed for IF sampling in multimode wireless receivers.
For engineers reviewing the AD9255BCPZRL7-105 datasheet, AD9255BCPZRL7-105 pinout, AD9255BCPZRL7-105 application, or AD9255BCPZRL7-105 equivalent, this page delivers verified specifications, validated pin functions, confirmed package mapping (48-lead LFCSP), real-world use cases in LTE/W-CDMA baseband, and two technically documented alternative parts with explicit functional and application-level differences.
Technical Context
The AD9255BCPZRL7-105 implements a multistage differential pipelined ADC core with integrated error correction logic, guaranteeing no missing codes across −40°C to +85°C. It supports integer 1-to-8 clock division and includes a duty cycle stabilizer (DCS) to maintain performance over wide input clock duty cycle variation.
Analog input uses a high-bandwidth track-and-hold amplifier with flexible 1 Vp-p to 2 Vp-p range and programmable internal reference; digital interface employs a 3-wire SPI for configuration of output format, dither, power modes, and voltage reference settings.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit-guarantees monotonicity and no missing codes over full temperature range. |
| Sampling Rate | 105 MSPS-supports Nyquist-limited IF sampling up to 52.5 MHz or undersampled RF signals to 300 MHz. |
| SNR @ 70 MHz | 78.3 dBFS-enables high-fidelity digitization of wideband communication signals with low quantization noise floor. |
| SFDR @ 70 MHz | 93 dBc-ensures clean spectral representation for multi-carrier systems like LTE and W-CDMA. |
| Power Consumption | 371 mW at 125 MSPS (typical), scaled proportionally at 105 MSPS-optimized for thermal-constrained embedded comms hardware. |
| Analog Input Bandwidth | 650 MHz-preserves signal integrity for direct RF sampling and high-IF architectures without external filtering. |
| Digital Output Interface | 1.8 V CMOS or LVDS DDR-provides layout flexibility: CMOS for short traces, LVDS for noise-immune board-level routing. |
Pinout & Package
The AD9255BCPZRL7-105 is housed in a Pb-free, 48-lead LFCSP (CP-48-9) with exposed thermal pad requiring solder connection to AGND for proper operation and thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN+, VIN− | Differential analog input | Accepts balanced RF/IF signals up to 300 MHz; common-mode bias set by internal VCM (0.9 V). |
| CLK+, CLK− | Differential clock input | Supports CMOS/LVDS/LVPECL; DCS corrects duty cycle to preserve aperture jitter <0.07 ps rms. |
| D0–D13 | Parallel data outputs | 14-bit DDR outputs: CMOS (1.8 V) or interleaved LVDS pairs; latency = 12.5 cycles in LVDS mode. |
| DCO | Data clock output | Source-synchronous DDR clock aligned to data edges; propagation delay = 3.3–4.3 ns (LVDS mode). |
| PDWN, OEB, DITHER | Control inputs | Hardware-configurable power-down (0.05 mW), output enable, and on-chip dither activation. |
| CSB, SCLK/DFS, SDIO/DCS | SPI interface | 3-wire serial port for register access; enables dynamic reconfiguration of output format, reference, and test modes. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip dither | Improves SFDR by ≥10 dB at low-input-power conditions (e.g., −23 dBFS), critical for weak-signal detection in smart antenna systems. |
| Duty cycle stabilizer (DCS) | Compensates for clock asymmetry without external circuitry, enabling robust operation with FPGA-generated clocks or crystal oscillators. |
| Flexible voltage reference | Programmable internal 1.0 V reference or external reference via VREF/SENSE/RBIAS-reduces BOM count and layout complexity. |
| Built-in self-test (BIST) | Verifies ADC functionality in-system without external stimulus; supports production test and field diagnostics. |
| Low-power standby mode | 54 mW consumption with clock inactive-ideal for time-division duplex (TDD) systems requiring rapid wake-up (500 μs). |
Applications
| Communications Base Station Receiver | Medical Ultrasound Beamformer |
|---|---|
|
Use Scenario: Digitizing 70–140 MHz IF signals from dual-polarized antenna arrays in LTE-Advanced macrocells. IC Role / Device Role / Timing Role: Primary ADC capturing wide instantaneous bandwidth with <78 dBFS SNR and <93 dBc SFDR at 105 MSPS. Use Value: Enables real-time MIMO processing with minimal quantization distortion and deterministic 12.5-cycle latency for closed-loop beam steering. |
Use Scenario: Sampling 5–15 MHz echo return signals from phased-array transducers with variable gain amplification. IC Role / Device Role / Timing Role: High-linearity ADC front-end supporting 14-bit depth and 650 MHz input bandwidth for harmonic-rich pulse-echo waveforms. Use Value: Preserves tissue contrast resolution by maintaining >77 dBFS SNR across full dynamic range, even at elevated temperatures. |
| Software-Defined Radio (SDR) Platform | Test & Measurement Digitizer |
|
Use Scenario: Reconfigurable wideband receiver in military SATCOM terminals covering 2–200 MHz with adaptive modulation schemes. IC Role / Device Role / Timing Role: Core ADC with programmable clock divider, dither, and SPI-controlled output format for multi-standard interoperability. Use Value: Eliminates need for external clock dividers or reference buffers-reducing PCB area and power by 35% vs. legacy 12-bit solutions. |
Use Scenario: High-accuracy waveform capture in benchtop oscilloscopes and spectrum analyzers requiring low spurious content. IC Role / Device Role / Timing Role: Precision digitizer delivering 91 dBc SFDR (full temp range) and <0.07 ps rms jitter for repeatable measurement fidelity. Use Value: Reduces calibration overhead by guaranteeing INL ≤ ±1.2 LSB and DNL ≤ ±0.45 LSB across industrial temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9265BCPZ-125 | 16-bit resolution, 125 MSPS, same 48-lead LFCSP package and pinout; higher power (530 mW) and larger die size. | Targeted at higher ENOB-critical applications (e.g., radar pulse compression), not drop-in replacement due to increased thermal load and SPI register map differences. | Select only when 16-bit resolution and ≥79 dBFS SNR at 140 MHz are mandatory; requires thermal redesign and firmware update. |
| ADS54J60IRGCT | 14-bit, 500 MSPS, JESD204B serial output, 64-pin QFN; no parallel CMOS/LVDS option or on-chip dither. | Designed for high-throughput backhaul interfaces where FPGA JESD204B lane count exceeds parallel bus capacity. | Choose for new designs prioritizing serial interface density and scalability over hardware simplicity; incompatible pinout and power sequencing. |
Compared with AD9255BCPZRL7-105, AD9265BCPZ-125 offers higher resolution but demands greater thermal headroom and firmware adaptation, while ADS54J60IRGCT trades parallel simplicity for JESD204B throughput-neither is pin-compatible, and both require PCB and software revisions.
Availability
AD9255BCPZRL7-105 is available at Aetrix Electronics and suitable for communications infrastructure, medical ultrasound systems, and test equipment requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature grade (−40°C to +85°C).
Supply support for AD9255BCPZRL7-105 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 is a global leader in high-performance analog, mixed-signal, and DSP technologies, serving precision instrumentation, industrial automation, and communications markets since 1965.
The AD9255 belongs to Analog Devices' high-speed data converter product line, engineered specifically for cost-sensitive, space-constrained wireless infrastructure and medical imaging systems demanding 14-bit accuracy at 80–125 MSPS.
FAQ
What is the maximum analog input frequency supported by the AD9255BCPZRL7-105?
The AD9255BCPZRL7-105 supports analog input frequencies up to 300 MHz, enabled by its 650 MHz analog input bandwidth and proprietary differential input architecture. This allows undersampling of RF signals directly into the Nyquist zone, making it suitable for IF sampling in LTE and W-CDMA receivers. The datasheet confirms −3 dB bandwidth extends to 650 MHz at 25°C with 200 Ω input impedance.
Does the AD9255BCPZRL7-105 support both CMOS and LVDS output interfaces simultaneously?
No, the AD9255BCPZRL7-105 supports either 1.8 V CMOS or LVDS DDR outputs-not both concurrently. Output mode is selected via hardware pins (LVDS, LVDS_RS) or SPI register configuration. In CMOS mode, D0–D13 drive single-ended 1.8 V signals; in LVDS mode, they form seven differential pairs plus OR+/OR−, requiring matching trace lengths and termination.
What is the power consumption of the AD9255BCPZRL7-105 at its rated 105 MSPS sample rate?
At 105 MSPS, the AD9255BCPZRL7-105 consumes approximately 332 mW in LVDS output mode and 291 mW in CMOS mode (calculated from datasheet Table 1 scaling: 371 mW at 125 MSPS → ~332 mW at 105 MSPS). Standby power is 54 mW, and deep power-down draws only 0.05 mW-critical for TDD-based systems.
How does the on-chip dither function improve SFDR performance in the AD9255BCPZRL7-105?
The AD9255BCPZRL7-105's on-chip dither adds controlled noise to the analog input path, breaking up harmonic correlation and reducing spurious tones. At −23 dBFS input, dither improves SFDR by up to 10 dB (e.g., from 93 dBc to 109 dBc at 70 MHz), which is essential for detecting low-level signals adjacent to strong interferers in cellular base stations.
Is the AD9255BCPZRL7-105 pin-compatible with other members of the AD9255 family?
Yes, all AD9255 variants-including AD9255BCPZ-80, AD9255BCPZ-105, and AD9255BCPZ-125-share identical 48-lead LFCSP (CP-48-9) packaging and pinout. Differences are limited to maximum sampling rate and minor AC performance trade-offs; no PCB redesign is needed when upgrading between speed grades.
AD9255BCPZRL7-105 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 48-VFQFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 105M
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- LVDS - 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:
- 1.7V ~ 1.9V
- Voltage - Supply, Digital:
- 1.7V ~ 1.9V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 48-LFCSP-VQ (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD9255BCPZRL7-105 FAQ
1.How can I place an order for AD9255BCPZRL7-105 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9255BCPZRL7-105 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 AD9255BCPZRL7-105 reliable?
The price and inventory of AD9255BCPZRL7-105 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9255BCPZRL7-105 is usually 5 days.
3.What payment methods are accepted for AD9255BCPZRL7-105?
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4.How is shipping managed for AD9255BCPZRL7-105?
AD9255BCPZRL7-105 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9255BCPZRL7-105 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 AD9255BCPZRL7-105?
For technical support, including AD9255BCPZRL7-105 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9255BCPZRL7-105 requirements.
6.How does Aetrix verify that AD9255BCPZRL7-105 is sourced from the original manufacturer or authorized distributors?
All AD9255BCPZRL7-105 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 AD9255BCPZRL7-105 meets industry standards.
7.What is the process for return or replacement of AD9255BCPZRL7-105?
All AD9255BCPZRL7-105 units undergo pre-shipment inspection (PSI). If there is an issue with AD9255BCPZRL7-105, 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 AD9255BCPZRL7-105 part is unused and in its original packaging.
Return procedure for AD9255BCPZRL7-105:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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