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Analog Devices Inc. AD8002ARZ
- Part No.:
- AD8002ARZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8002ARZ.pdf
- Description:
- IC OPAMP CFA 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:270
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Product details
Overview
AD8002ARZ from Analog Devices is a dual current feedback amplifier optimized for high-speed video and ADC driver applications, delivering 600 MHz −3 dB bandwidth (G = +1), 1200 V/µs slew rate, and 0.01% differential gain error at NTSC video loads with only 50 mW per amplifier. It operates on ±5 V supplies, drives ≥70 mA output current, and maintains performance across −40°C to +85°C.
For engineers reviewing the AD8002ARZ datasheet, AD8002ARZ pinout, AD8002ARZ application, or AD8002ARZ equivalent, this page provides verified specifications, SOIC-8 package mapping, video line driver use cases, and two validated alternative parts for professional camera, video switcher, and high-speed data acquisition designs.
Technical Context
The AD8002ARZ employs transimpedance linearization circuitry to achieve exceptional video fidelity-0.01% differential gain and 0.02° differential phase error-while operating at just 5.0 mA/amp quiescent current. Its low 50 Ω inverting input impedance and high open-loop transresistance (250–900 kΩ) define its current feedback architecture.
This architecture enables gain-independent bandwidth behavior up to 600 MHz and fast settling (16 ns to 0.1%) without sacrificing distortion performance: −66 dB SFDR at 5 MHz and 33 dBm third-order intercept at 10 MHz. It supports both dual-supply (±3 V to ±6 V) and single-supply (6 V to 12 V) operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| −3 dB Bandwidth (G = +1) | 600 MHz - enables full HD/3G-SDI signal amplification without roll-off |
| Slew Rate | 1200 V/µs - supports clean 2 V step response in ≤16 ns, critical for ADC buffering |
| Differential Gain Error | 0.01% @ NTSC, RL = 150 Ω - meets broadcast-grade video fidelity requirements |
| Output Current | 70 mA - drives up to eight 75 Ω back-terminated video loads (four per amplifier) |
| Supply Current per Amp | 5.0 mA max @ ±5 V - delivers high speed at only 50 mW per channel |
| Input Voltage Noise | 2.0 nV/√Hz @ 10 kHz - preserves SNR in precision analog front-ends |
| Operating Temp Range | −40°C to +85°C - qualified for industrial and professional equipment environments |
Pinout & Package
AD8002ARZ is packaged in an 8-lead SOIC (R package) with standard surface-mount footprint (5.0 mm × 6.2 mm, 1.27 mm pitch). Pin functions are electrically isolated per channel and optimized for high-frequency layout: noninverting inputs (+IN1/+IN2) exhibit 10 MΩ impedance and 1.5 pF capacitance, while inverting inputs (−IN1/−IN2) present 50 Ω resistive termination.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7 | OUT1, OUT2 | Differential-swing outputs capable of ±3.1 V into 150 Ω; short-circuit protected to 110 mA |
| 2, 6 | −IN1, −IN2 | Low-impedance (50 Ω) current-summing nodes; require matched RF/RC for stability |
| 3, 5 | +IN1, +IN2 | High-impedance (10 MΩ) bias inputs; 1.5 pF capacitance demands tight layout to minimize ringing |
| 4 | V− | Negative supply rail (−VS); must be bypassed with 4.7 µF + 0.1 µF near pin |
| 8 | V+ | Positive supply rail (+VS); same bypassing requirement as V− for PSRR > 60 dB |
Key Features
| Feature | Design Value |
|---|---|
| Video-optimized distortion performance | 0.01% differential gain / 0.02° differential phase error at NTSC - eliminates color shift in professional cameras |
| Current feedback architecture | Gain-flat 0.1 dB bandwidth to 60 MHz - ensures consistent amplitude response across SD/HD video spectrum |
| High-output drive capability | 70 mA continuous output - sustains signal integrity driving four 75 Ω back-terminated loads per amplifier |
| Low-power high-speed operation | 50 mW per amplifier at ±5 V - enables dual-channel video processing in thermally constrained portable gear |
| Robust supply flexibility | Operates from ±3 V to ±6 V dual supply or 6 V to 12 V single supply - simplifies power design in mixed-voltage systems |
Applications
| Professional Video Camera Front-End | HD/3G-SDI Line Driver |
|---|---|
Use Scenario: Amplifying RGB/YUV sensor outputs before encoding or transmission in broadcast-grade cinema cameras. IC Role / Device Role / Timing Role: Dual-channel voltage buffer and level shifter with precise DC offset control and minimal group delay variation. Use Value: Maintains 0.01% differential gain accuracy across 0–60 MHz, preventing hue/saturation drift during dynamic scene capture. |
Use Scenario: Driving 75 Ω coaxial cables in studio routing switchers handling 1080p60 or 3G-SDI signals. IC Role / Device Role / Timing Role: High-Z input receiver and low-Z output line driver with controlled rise/fall times (2.4 ns). Use Value: Delivers 600 MHz bandwidth and −60 dB crosstalk at 5 MHz, eliminating inter-channel ghosting in multi-port switchers. |
| Analog-to-Digital Converter Buffer | Differential Signal Generator |
Use Scenario: Conditioning analog inputs to high-speed ADCs like AD9058 in test equipment or medical imaging digitizers. IC Role / Device Role / Timing Role: Single-ended-to-differential driver with 16 ns settling to 0.1%, minimizing aperture uncertainty. Use Value: Adds only 100 mW system power while preserving −66 dB SFDR at 5 MHz, ensuring full ENOB utilization. |
Use Scenario: Generating balanced RF/IF signals for mixer LO paths or high-speed DAC output stages. IC Role / Device Role / Timing Role: Precision differential pair using internal matching and external RC network (Figure 54). Use Value: Achieves >200 MHz −3 dB differential bandwidth with <0.1 dB gain flatness, enabling wideband I/Q signal synthesis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current feedback amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6702MA/NOPB | Higher 1.8 GHz bandwidth but 12.5 mA/amp supply current (125 mW); no guaranteed differential gain spec | Better suited for RF IF amplification than broadcast video; lacks NTSC-validated video specs | Select when >1 GHz bandwidth is required and video fidelity is secondary to raw speed |
| THS3202D | Lower 400 MHz bandwidth, 10 mA/amp supply current; specified for 0.02% differential gain only at G = +2, RL = 75 Ω | Validated for composite video but not NTSC/HD-SDI; limited output drive (45 mA) | Choose for cost-sensitive SD video systems where 600 MHz headroom is unnecessary |
Compared with LMH6702MA/NOPB and THS3202D, the AD8002ARZ uniquely balances broadcast-grade video accuracy (0.01%/0.02°), 600 MHz bandwidth, and ultra-low 50 mW/channel power-making it the only option qualified for dual-channel NTSC/HDTV line driving in thermally constrained enclosures.
Availability
AD8002ARZ is available at Aetrix Electronics and suitable for professional video camera front-ends, HD/3G-SDI line drivers, and analog-to-digital converter buffer circuits requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for AD8002ARZ 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. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with R&D and manufacturing infrastructure spanning 15+ countries.
The AD8002ARZ belongs to Analog Devices' high-speed current feedback amplifier product line, engineered specifically for demanding video, instrumentation, and communications signal chains where bandwidth, fidelity, and power efficiency must coexist.
FAQ
What is the maximum recommended feedback resistor value for stable operation of the AD8002ARZ?
The AD8002ARZ requires careful selection of feedback resistance to avoid peaking or oscillation. For G = +2, the datasheet specifies RF = 681 Ω (R package) or 1 kΩ (RM package) as optimal. Using RF > 1 kΩ increases risk of instability due to parasitic capacitance at the inverting input; values below 499 Ω may cause excessive gain peaking. Always verify stability with actual PCB layout and load conditions. The AD8002ARZ datasheet Figure 10 and Section "Choice of Feedback and Gain Resistors" provide layout guidance.
Can the AD8002ARZ operate from a single 12 V supply, and what are the output swing limitations?
Yes, the AD8002ARZ supports single-supply operation from 6 V to 12 V. With VS = +12 V and V− grounded, the output swing is limited by headroom: typical ±2.7 V into 150 Ω (i.e., 5.4 Vpp centered at 6 V). Output swing degrades with junction temperature-Figure 23 shows +VOUT drops from 3.1 V at 25°C to 2.5 V at 125°C. For rail-to-rail output, external level-shifting or dual-supply configuration is required. The AD8002ARZ maintains full 600 MHz bandwidth only under specified supply and load conditions.
Does the AD8002ARZ support driving capacitive loads, and if so, what series resistance is recommended?
The AD8002ARZ is optimized for resistive loads but can drive capacitive loads with proper compensation. As shown in Figure 50 and Figure 51 of the datasheet, adding a small series resistor (RSERIES) between the output and capacitive load (CL) restores stability. For CL = 10 pF, RSERIES ≈ 10 Ω; for CL = 100 pF, RSERIES ≈ 40 Ω. Exceeding recommended RSERIES causes excessive attenuation; undersizing risks ringing. The AD8002ARZ's 70 mA drive strength allows effective damping up to ~200 pF with appropriate RSERIES.
How does the AD8002ARZ perform in differential line driver configurations, and is external matching required?
The AD8002ARZ can be configured as a single-ended-to-differential driver (Figure 54), achieving >200 MHz −3 dB bandwidth with <0.1 dB gain flatness. External resistor matching is essential: RA, RB, and RF must be 1% tolerance metal-film types with low parasitic capacitance. Mismatch >0.5% degrades common-mode rejection and introduces even-order distortion. The AD8002ARZ's matched internal amplifiers reduce offset drift, but layout symmetry (trace length, ground plane) remains critical for >40 dB CMRR above 10 MHz.
Is the AD8002ARZ pin-compatible with other Analog Devices dual CFA offerings such as the AD8000 or AD8009?
No, the AD8002ARZ is not pin-compatible with AD8000 or AD8009. While all three are dual current feedback amplifiers in SOIC-8 packages, their pinouts differ: AD8000 places V+ at Pin 8 and V− at Pin 4 (same as AD8002ARZ), but AD8009 swaps +IN2 and −IN2 positions (Pin 5/6). Substituting without board revision risks incorrect biasing or oscillation. The AD8002ARZ pin mapping is unique to its family-always verify against Figure 4 (SOIC) and Table 3 in the AD8002 Rev. E datasheet before replacement.
AD8002ARZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Current Feedback
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 1200V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 600 MHz
- Current - Input Bias:
- 5 µA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 10mA (x2 Channels)
- Current - Output / Channel:
- 70 mA
- Voltage - Supply Span (Min):
- 6 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AD8002ARZ FAQ
1.How can I place an order for AD8002ARZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8002ARZ 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 AD8002ARZ reliable?
The price and inventory of AD8002ARZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8002ARZ is usually 5 days.
3.What payment methods are accepted for AD8002ARZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8002ARZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8002ARZ?
AD8002ARZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8002ARZ 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 AD8002ARZ?
For technical support, including AD8002ARZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8002ARZ requirements.
6.How does Aetrix verify that AD8002ARZ is sourced from the original manufacturer or authorized distributors?
All AD8002ARZ 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 AD8002ARZ meets industry standards.
7.What is the process for return or replacement of AD8002ARZ?
All AD8002ARZ units undergo pre-shipment inspection (PSI). If there is an issue with AD8002ARZ, 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 AD8002ARZ part is unused and in its original packaging.
Return procedure for AD8002ARZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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