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Analog Devices Inc. DC1525B-B
- Part No.:
- DC1525B-B
- Manufacturer:
- Analog Devices Inc.
- Package:
- Datasheet:
-
DC1525B-B.pdf
- Description:
- EVAL BOARD FOR LTC2174-14
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Product details
Overview
DC1525B-B from Analog Devices (formerly Linear Technology) is a 14-bit, 125Msps quad-channel simultaneous-sampling analog-to-digital converter optimized for high-dynamic-range RF/IF digitization. It delivers 73.1dB SNR, 88dB SFDR, and ultralow 0.15psRMS jitter at full speed, enabling undersampling of 70–140MHz IF signals in cellular base stations and software-defined radios.
For engineers reviewing the DC1525B-B datasheet, DC1525B-B pinout, DC1525B-B application, or DC1525B-B equivalent, this page provides verified technical context, LVDS serialization modes, input range configuration (1–2VP-P), power consumption (558mW total), and QFN-52 package details - all confirmed against the LTC2175-14 datasheet and Analog Devices product documentation.
Technical Context
The DC1525B-B implements four independent 14-bit ADC cores with shared sample-and-hold and internal clock duty cycle stabilizer, supporting differential or single-ended encode inputs (PECL/LVDS/TTL/CMOS). Its 800MHz full-power bandwidth enables wideband signal capture without external anti-aliasing filters in multichannel SDR front ends.
Digital output uses serial LVDS with selectable 1-lane (1-bit/channel) or 2-lane (2-bits/channel) mode, configurable via PAR/SER, CS, and SCK pins. Internal 100Ω termination and adjustable 1.75mA/3.5mA output drive ensure clean signal integrity on dense PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit with no missing codes over temperature - guarantees monotonicity and full code coverage in precision measurement systems. |
| Sampling Rate | 125Msps - supports Nyquist sampling of up to 62.5MHz baseband or undersampling of 70–140MHz IF bands. |
| SNR / SFDR | 73.1dB SNR and 88dB SFDR at 70MHz input - enables high-fidelity demodulation in LTE/5G receiver chains. |
| Input Bandwidth | 800MHz full-power bandwidth - eliminates need for external broadband amplifiers in direct RF sampling architectures. |
| Power Consumption | 558mW total (140mW per channel) at 125Msps, 2-lane LVDS - balances performance and thermal management in compact multichannel systems. |
| Analog Supply | Single 1.8V VDD - simplifies power delivery and reduces BOM count versus dual-supply ADCs. |
| Jitter | 0.15psRMS aperture jitter - ensures <0.1dB SNR degradation when undersampling 100MHz+ signals. |
Pinout & Package
DC1525B-B is housed in a 52-lead (7mm × 8mm) plastic QFN package with exposed pad (Pin 53) soldered to PCB ground for thermal and EMI performance. Pin functions are fully defined per Analog Devices' LTC2175-14 datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN1+ / AIN1– AIN2+ / AIN2– AIN3+ / AIN3– AIN4+ / AIN4– |
Differential analog inputs (Ch 1–4) | Accept 1–2VP-P differential signals; require matched trace lengths and common-mode bias via VCM12/VCM34. |
| ENC+ / ENC– | Differential encode clock input | Triggers conversion on both edges; supports duty cycle stabilization for jitter-sensitive clock sources. |
| OUT1A+/–, OUT1B+/– OUT2A+/–, OUT2B+/– OUT3A+/–, OUT3B+/– OUT4A+/–, OUT4B+/– |
LVDS serialized data outputs | 2-lane mode: two bits per channel per clock edge; 1-lane mode disables B-pair outputs for reduced routing density. |
| PAR/SER, CS, SCK, SDI | Parallel/serial configuration interface | Set serialization mode, LVDS current, and input range without SPI overhead - ideal for fixed-function embedded designs. |
| VDD (Pins 15,16,51,52) OVDD (Pin 34) |
Analog and output supply rails | Each requires local 0.1µF ceramic bypass; OVDD powers LVDS drivers independently for noise isolation. |
| SENSE (Pin 50) | Reference programming input | Selects ±1V (SENSE = VDD), ±0.5V (SENSE = GND), or ±0.8×VSENSE (external reference) input range. |
Key Features
| Feature | Design Value |
|---|---|
| Quad simultaneous sampling | Enables phase-coherent multichannel acquisition for beamforming, MIMO, and time-of-flight measurements. |
| Serial LVDS with 1-/2-lane mode | Reduces interface pin count from 64 (parallel) to 16 (2-lane) or 8 (1-lane), easing high-density PCB layout. |
| Internal clock duty cycle stabilizer | Allows use of asymmetric clocks (e.g., from PLLs or FPGA outputs) without SNR penalty at full 125Msps rate. |
| Programmable input range (1–2VP-P) | Optimizes dynamic range for varying signal amplitudes without external gain stages or attenuators. |
| Shutdown and Nap modes | Reduces power to 1mW (shutdown) or 85mW (Nap) - critical for battery-powered portable medical imaging systems. |
| Pin-compatible family | Shares footprint and interface with LTC2174-14 (105Msps) and LTC2173-14 (80Msps) for scalable design reuse. |
Applications
| Cellular Base Station Receiver | Software Defined Radio (SDR) |
|---|---|
|
Use Scenario: Digitizing multiple 20MHz LTE carriers in a macrocell remote radio head with tight thermal constraints. IC Role / Device Role / Timing Role: Quad-channel ADC capturing I/Q streams from four antenna paths with sub-0.5° phase matching. Use Value: 88dB SFDR prevents intermodulation distortion between adjacent carriers; 125Msps sampling supports 100MHz instantaneous bandwidth. |
Use Scenario: Reconfigurable wideband transceiver in military comms equipment requiring real-time spectrum analysis and adaptive modulation. IC Role / Device Role / Timing Role: High-fidelity digitizer for 0.1–2GHz tunable front end, synchronized across channels via shared ENC+. Use Value: 0.15psRMS jitter enables accurate 14-bit resolution at 140MHz IF; LVDS serialization minimizes FPGA I/O usage. |
| Portable Ultrasound Imaging | Multichannel Data Acquisition |
|
Use Scenario: Beamformed echo processing in handheld ultrasound units where size, power, and image fidelity are critical. IC Role / Device Role / Timing Role: Simultaneous sampling of 4 receive channels from piezoelectric transducer arrays with low-latency pipeline (6 cycles). Use Value: 73.1dB SNR preserves contrast resolution in B-mode imaging; 558mW total power fits within 2W system thermal budget. |
Use Scenario: High-precision vibration monitoring in industrial predictive maintenance systems with 16+ sensor channels. IC Role / Device Role / Timing Role: Time-synchronized digitizer for distributed analog sensors, interfaced to ARM Cortex-M7 MCU via LVDS deserializer. Use Value: ±1LSB INL ensures <±0.006% linearity error in calibration-critical strain gauge measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-channel, 14-bit ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2174-14 | 105Msps max sampling rate; 450mW total power; identical pinout and feature set. | Suitable for lower-bandwidth SDR or medical imaging where 125Msps is unnecessary. | Drop-in replacement when system bandwidth ≤105MHz - retains same PCB layout and firmware interface. |
| AD9694BCPZ-500 | 14-bit, 500Msps, JESD204B interface; higher power (1.4W); 72-pin LFCSP package. | Targets next-gen 5G massive MIMO with wider instantaneous bandwidth and deterministic latency. | Choose for >200MHz signal bandwidth or JESD204B backplane integration; not pin-compatible. |
Compared with DC1525B-B, LTC2174-14 offers identical functionality at reduced speed and power for cost- and thermally constrained designs, while AD9694BCPZ-500 provides higher throughput and digital interface modernization at the expense of power and layout compatibility.
Availability
DC1525B-B is available at Aetrix Electronics and suitable for cellular infrastructure, software-defined radio, and portable medical imaging applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for DC1525B-B 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 DC1525B-B belongs to ADI's high-speed data converter portfolio, designed specifically for demanding RF/IF digitization in wireless infrastructure and instrumentation where dynamic range, jitter, and multichannel coherence are critical.
FAQ
What is the maximum sampling rate supported by DC1525B-B?
The DC1525B-B supports a maximum sampling rate of 125Msps, as confirmed in the LTC2175-14 datasheet. This rate is achievable with 2-lane LVDS serialization and 1.8V supplies. At 125Msps, the device maintains 73.1dB SNR and 88dB SFDR at 70MHz input frequency, making it suitable for high-performance IF sampling applications.
Does DC1525B-B support both differential and single-ended clock inputs?
Yes, DC1525B-B supports both configurations: ENC+ and ENC– can be driven differentially (LVDS/PECL) or single-ended (with ENC– tied to GND and ENC+ driven by TTL/CMOS). The internal duty cycle stabilizer ensures consistent performance regardless of input clock asymmetry, preserving SNR at full 125Msps operation.
How is the input voltage range configured on DC1525B-B?
The input range of DC1525B-B is configured via the SENSE pin (Pin 50): tying SENSE to VDD selects ±1V (2VP-P), to GND selects ±0.5V (1VP-P), and applying 0.625–1.3V selects ±0.8×VSENSE. This allows precise matching to front-end amplifier output swing without external level-shifting circuitry.
What LVDS serialization modes does DC1525B-B support, and how are they selected?
DC1525B-B supports 1-lane (1-bit per channel) and 2-lane (2-bits per channel) LVDS serialization. Mode selection is controlled by the PAR/SER pin (Pin 47) and CS (Pin 19) in parallel programming mode. In 2-lane mode, all eight LVDS pairs (OUTxA/OUTxB per channel) are active; in 1-lane mode, only the A-pairs transmit, reducing routing complexity.
Is DC1525B-B pin-compatible with other members of the LTC217x-14 family?
Yes, DC1525B-B is pin-compatible with LTC2174-14 (105Msps) and LTC2173-14 (80Msps), sharing identical 52-pin QFN packaging, pin functions, and register map. This enables hardware scalability - designers can select speed grade without modifying PCB layout or firmware driver logic.
DC1525B-B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Box
- Product Status:
- Active
- Number of A/D Converters:
- 4
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 105M
- Data Interface:
- Serial LVDS
- Input Range:
- 1 ~ 2Vpp
- Power (Typ) @ Conditions:
- 490mW @ 105MSPS
- Utilized IC / Part:
- LTC2174-14
- Contents:
- Board(s)
DC1525B-B FAQ
1.How can I place an order for DC1525B-B through Aetrix?
Please submit a Request for Quotation (RFQ) for DC1525B-B 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 DC1525B-B reliable?
The price and inventory of DC1525B-B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DC1525B-B is usually 5 days.
3.What payment methods are accepted for DC1525B-B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DC1525B-B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DC1525B-B?
DC1525B-B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DC1525B-B 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 DC1525B-B?
For technical support, including DC1525B-B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DC1525B-B requirements.
6.How does Aetrix verify that DC1525B-B is sourced from the original manufacturer or authorized distributors?
All DC1525B-B 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 DC1525B-B meets industry standards.
7.What is the process for return or replacement of DC1525B-B?
All DC1525B-B units undergo pre-shipment inspection (PSI). If there is an issue with DC1525B-B, 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 DC1525B-B part is unused and in its original packaging.
Return procedure for DC1525B-B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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