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Analog Devices Inc. AD9480BSUZ-250
- Part No.:
- AD9480BSUZ-250
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 44-TQFP
- Datasheet:
-
AD9480BSUZ-250.pdf
- Description:
- IC ADC 8BIT PIPELINED 44TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,135
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Product details
Overview
AD9480BSUZ-250 from Analog Devices is an 8-bit, 250 MSPS monolithic analog-to-digital converter optimized for high-speed instrumentation and communications systems. It operates from a single 3.3 V supply, delivers ±0.26 LSB INL and ±0.25 LSB DNL, features LVDS outputs compliant with ANSI TIA/EIA-644, and includes an internal 1.0 V reference - enabling direct connection to FPGAs in digital oscilloscope front-ends.
For engineers reviewing the AD9480BSUZ-250 datasheet, AD9480BSUZ-250 pinout, AD9480BSUZ-250 application, or AD9480BSUZ-250 equivalent, key selection criteria include its 250 MSPS sampling rate, 47 dB SNR at 19.7 MHz, 0.25 ps rms aperture jitter, LVDS output timing skew ≤0.6 ns, and industrial temperature range (−40°C to +85°C) in a 44-lead TQFP package.
Technical Context
The AD9480BSUZ-250 implements a 1.5-bit-per-stage pipeline ADC architecture with integrated track-and-hold and internal voltage reference. Its clock duty-cycle stabilizer locks to the rising edge of differential CLK± inputs and maintains timing integrity across 100–250 MSPS, though it does not reduce input clock jitter.
Digital outputs are true LVDS (ANSI-644), with complementary Dn_T/Dn_C bit pairs and dedicated DCO± output clock - all referenced to DRVDD and DRGND. The S1 pin selects between twos-complement and binary output coding, while PDWN enables power-down mode reducing dissipation to 15 mW.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit - supports 256 discrete amplitude levels for medium-fidelity signal digitization. |
| Max Sampling Rate | 250 MSPS - enables Nyquist-limited capture of signals up to 125 MHz without aliasing. |
| INL / DNL | ±0.26 LSB / ±0.25 LSB - ensures monotonicity and minimal code-width deviation for precision measurement. |
| SNR @ 19.7 MHz | 47 dB - corresponds to ~7.6 effective bits, suitable for oscilloscope and spectrum analyzer applications. |
| Aperture Jitter | 0.25 ps rms - limits sampling uncertainty, critical for high-frequency signal fidelity above 100 MHz. |
| Power Dissipation | 590 mW at 250 MSPS - optimized for low-power high-speed conversion; drops to 15 mW in power-down mode. |
| Analog Input Range | 1 V p-p differential - matches standard RF/IF signal chain levels and simplifies interface with baluns or differential amplifiers. |
| Output Interface | LVDS (ANSI-644) - provides noise-immune, low-skew parallel data transmission compatible with Xilinx/Intel FPGA I/O banks. |
Pinout & Package
AD9480BSUZ-250 is housed in a 44-lead TQFP (Thin Quad Flat Package) with exposed thermal pad, rated for −40°C to +85°C operation. Pin 1 is marked by a dot; pins 43 (NC) and 44 (AGND) are designated per datasheet Figure 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLK+, CLK− | Differential clock input | Accepts LVPECL/TTL/CMOS; internal bias at 1.5 V; duty-cycle stabilizer active above 100 MSPS. |
| VIN+, VIN− | Differential analog input | 1 V p-p full-scale range; 10 kΩ differential input resistance; 4 pF capacitance; self-biased to ~1.9 V common-mode. |
| D0_T to D7_T, D0_C to D7_C | LVDS data outputs (LSB to MSB) | True/complement pairs reduce EMI; require 100 Ω differential termination at receiver. |
| DCO+, DCO− | LVDS output clock | Synchronized to sampled data; enables source-synchronous capture in FPGA logic with <0.6 ns skew vs. data. |
| PDWN | Power-down control | Logic high (≥2.0 V) disables core and reduces total power to 15 mW; AVDD remains active. |
| S1 | Output format select | Configures twos-complement or binary coding; also controls duty-cycle stabilizer enable/disable. |
| SENSE, VREF | Reference mode control | SENSE = AGND selects internal 1.0 V reference; SENSE = AVDD enables external reference via VREF pin. |
| LVDSBIAS | LVDS current adjustment | 3.74 kΩ resistor sets LVDS output current; adjusts VOD (247–454 mV) and VOS (1.125–1.375 V). |
Key Features
| Feature | Design Value |
|---|---|
| Internal 1.0 V reference | Eliminates need for external reference IC or trimming, reducing BOM count and layout area in compact test equipment. |
| LVDS output interface | Provides low-noise, low-skew, point-to-point data transmission over >10 cm PCB traces without signal integrity degradation. |
| Clock duty-cycle stabilizer | Compensates for input clock asymmetry between 100–250 MSPS, relaxing clock buffer design requirements in FPGA-based systems. |
| 8-cycle pipeline latency | Enables deterministic timing alignment in real-time processing pipelines, simplifying FIFO depth calculation in digital downconverters. |
| Power-down mode (15 mW) | Supports dynamic power management in battery-assisted portable instruments or multi-channel systems with time-division sampling. |
Applications
| Digital Oscilloscopes | Instrumentation & Measurement |
|---|---|
Use Scenario: Real-time waveform capture in handheld and benchtop oscilloscopes with ≥100 MHz bandwidth. IC Role / Device Role / Timing Role: Primary digitizer in acquisition front-end; samples analog input at 250 MSPS with sub-ns timing precision. Use Value: 47 dB SNR and 0.25 ps aperture jitter preserve signal integrity for accurate rise-time and harmonic analysis. |
Use Scenario: High-accuracy data acquisition in automated test equipment (ATE) and calibration standards. IC Role / Device Role / Timing Role: Precision ADC in metrology-grade digitizers requiring monotonicity and low INL/DNL. Use Value: ±0.26 LSB INL and guaranteed no-missing-codes ensure traceable linearity for NIST-traceable measurements. |
| Communications Baseband | Predistortion Loops |
Use Scenario: IF sampling in wireless infrastructure receivers (e.g., LTE, WiMAX) operating up to 125 MHz. IC Role / Device Role / Timing Role: Digitizes baseband or low-IF signals prior to digital filtering and demodulation in FPGA. Use Value: LVDS outputs interface directly to FPGA transceivers with minimal timing margin loss, supporting deterministic data capture. |
Use Scenario: Feedback path in digital predistortion (DPD) systems for GaN power amplifiers in 5G mmWave radios. IC Role / Device Role / Timing Role: Captures PA output for real-time error correction; requires low-latency, repeatable sampling. Use Value: Fixed 8-cycle latency and <0.6 ns data-to-clock skew enable precise time-aligned feedback loop closure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9481BCPZ-250 | Same 8-bit, 250 MSPS architecture but in 48-lead LFCSP; lower power (520 mW); improved SFDR (−68 dBc @ 70 MHz). | Preferred for space-constrained RF modules where thermal performance and board area are critical. | Select AD9481BCPZ-250 when LFCSP packaging, enhanced SFDR, or lower thermal resistance (θJA = 32°C/W) is required. |
| ADC12D1000RFIRUT | 12-bit, 1.0 GSPS dual-channel ADC; higher resolution and speed; requires external reference and clock conditioning. | Suitable for wideband radar or electronic warfare systems needing >1 GHz instantaneous bandwidth. | Choose ADC12D1000RFIRUT only when 12-bit resolution and dual-channel 1 GSPS operation justify added complexity and cost. |
Compared with AD9480BSUZ-250, AD9481BCPZ-250 offers better SFDR and smaller footprint but lacks pin compatibility, while ADC12D1000RFIRUT delivers higher resolution and speed at the expense of increased power, external support components, and system-level design effort.
Availability
AD9480BSUZ-250 is available at Aetrix Electronics and suitable for digital oscilloscopes, instrumentation and measurement systems, and communications baseband receivers requiring stable component supply across extended production lifecycles.
Supply support for AD9480BSUZ-250 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 digital signal processing semiconductors, headquartered in Norwood, MA.
The AD9480 product line targets high-speed data acquisition in test & measurement and communications, emphasizing low power, integrated references, and robust LVDS interfacing for rapid system integration.
FAQ
What is the maximum sampling rate supported by the AD9480BSUZ-250?
The AD9480BSUZ-250 supports a maximum conversion rate of 250 MSPS, as confirmed in Table 4 of the Rev. A datasheet. This rate is fully characterized across the industrial temperature range (−40°C to +85°C) with guaranteed AC performance including 45 dB SINAD at 70.1 MHz input frequency. Operation below 20 MSPS is not recommended due to degraded SNR.
Does the AD9480BSUZ-250 require an external reference voltage?
No, the AD9480BSUZ-250 includes an internal 1.0 V reference (±0.025 mV/°C drift) that is enabled by connecting SENSE to AGND. External reference mode is optional and activated by tying SENSE to AVDD and driving VREF with a 1.0 V source - but the internal reference eliminates BOM and layout overhead for most applications.
What package type is used for the AD9480BSUZ-250?
The AD9480BSUZ-250 is packaged in a 44-lead TQFP (Thin Quad Flat Package) with exposed thermal pad, as specified in the Outline Dimensions section (Page 26) and Pin Configuration diagram (Figure 3). It is RoHS-compliant and rated for industrial temperature operation (−40°C to +85°C).
How does the clock duty-cycle stabilizer function in the AD9480BSUZ-250?
The AD9480BSUZ-250's clock duty-cycle stabilizer locks to the rising edge of CLK± and optimizes internal timing for sample rates from 100 to 250 MSPS. It tolerates wide input duty cycles but does not reduce clock jitter. The feature is disabled by pulling S1 low and is inactive below ~70 MHz, as documented in the Clocking section (Page 16).
What is the power consumption of the AD9480BSUZ-250 during active operation?
The AD9480BSUZ-250 dissipates 590 mW at 250 MSPS with a dc analog input and rated encode clock, per Table 1 (DC Specifications, Page 3). Current draw is 156 mA on AVDD and 38 mA on DRVDD. In power-down mode (PDWN = high), total dissipation drops to 15 mW, as verified in the Power Supply section (Page 3).
AD9480BSUZ-250 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 44-TQFP
- Packaging:
- Tray
- Product Status:
- Active
- Number of Bits:
- 8
- Sampling Rate (Per Second):
- 250M
- Number of Inputs:
- 1
- Input Type:
- Differential, Single Ended
- 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:
- 3V ~ 3.6V
- Voltage - Supply, Digital:
- 3V ~ 3.6V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 44-TQFP (10x10)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD9480BSUZ-250 FAQ
1.How can I place an order for AD9480BSUZ-250 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9480BSUZ-250 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 AD9480BSUZ-250 reliable?
The price and inventory of AD9480BSUZ-250 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9480BSUZ-250 is usually 5 days.
3.What payment methods are accepted for AD9480BSUZ-250?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9480BSUZ-250 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9480BSUZ-250?
AD9480BSUZ-250 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9480BSUZ-250 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 AD9480BSUZ-250?
For technical support, including AD9480BSUZ-250 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9480BSUZ-250 requirements.
6.How does Aetrix verify that AD9480BSUZ-250 is sourced from the original manufacturer or authorized distributors?
All AD9480BSUZ-250 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 AD9480BSUZ-250 meets industry standards.
7.What is the process for return or replacement of AD9480BSUZ-250?
All AD9480BSUZ-250 units undergo pre-shipment inspection (PSI). If there is an issue with AD9480BSUZ-250, 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 AD9480BSUZ-250 part is unused and in its original packaging.
Return procedure for AD9480BSUZ-250:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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