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Analog Devices Inc. AD8129ARZ-REEL
- Part No.:
- AD8129ARZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8129ARZ-REEL.pdf
- Description:
- IC OPAMP DIFF 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,046
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Product details
Overview
AD8129ARZ-REEL from Analog Devices is a high-speed, low-noise differential-to-single-ended receiver amplifier optimized for long-cable analog video and high-speed data transmission over twisted-pair. It delivers 200 MHz bandwidth (−3 dB, VOUT ≤ 0.3 V p-p), 1060 V/μs slew rate at G = +10, and 4.5 nV/√Hz input voltage noise, enabling robust signal recovery in industrial camera links and broadcast video receivers.
For engineers reviewing the AD8129ARZ-REEL datasheet, AD8129ARZ-REEL pinout, AD8129ARZ-REEL application, or AD8129ARZ-REEL equivalent, key selection criteria include its 70 dB CMRR at 10 MHz, ±10.5 V input common-mode range, user-adjustable gain via external resistors, power-down capability, and SOIC-8 packaging compatible with standard PCB layouts.
Technical Context
The AD8129ARZ-REEL implements a fully differential input stage with high-impedance (1 MΩ differential, 4 MΩ common-mode) inputs and a single-ended output, supporting gain configurations ≥+10 via external RF/RG resistor networks. Its architecture maintains >94 dB CMRR up to 100 kHz and sustains 70 dB CMRR at 10 MHz-critical for rejecting ground-loop noise in unshielded cable systems.
It operates across ±2.25 V to ±12.6 V supplies, supports rail-to-rail output swing into 150 Ω loads (±3.3 V), and features a dedicated PD pin enabling <0.5 μs enable time and <1 mA quiescent current in power-down mode-enabling dynamic power management in multi-channel video systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| −3 dB Bandwidth | 200 MHz (VOUT ≤ 0.3 V p-p, ±5 V supply); enables full HD analog video (1080p60) signal recovery without attenuation |
| Slew Rate | 1060 V/μs (G = +10, ±5 V); supports fast edge fidelity for digital video timing and pulse integrity |
| Input Voltage Noise | 4.5 nV/√Hz (f ≥ 10 kHz); preserves SNR in low-level video and instrumentation signal chains |
| CMRR | 94 dB min (dc–100 kHz), 70 dB @ 10 MHz; rejects common-mode interference from long cables and noisy environments |
| Input Common-Mode Range | ±10.5 V (at ±12 V supply); eliminates need for level-shifting circuitry when interfacing with ±10 V sensor or driver outputs |
| Power-Down Current | 0.85 mA (PD ≤ VIL, ±5 V); reduces system standby power in multi-channel video receivers |
| Operating Temp Range | −40°C to +85°C (±12 V); qualified for industrial and broadcast equipment deployment |
Pinout & Package
AD8129ARZ-REEL is housed in an 8-lead SOIC package (JEDEC MS-012AA, 150 mil width) with standard lead pitch (1.27 mm) and exposed pad not present. Thermal resistance θJA = 121°C/W on 4-layer board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (+IN) | Differential Input Noninverting | High-impedance (1 MΩ) node accepting positive-side signal; sets polarity of output response |
| 2 (−IN) | Differential Input Inverting | High-impedance (1 MΩ) node accepting negative-side signal; enables common-mode rejection |
| 3 (−VS) | Negative Supply Rail | Connects to negative supply (−2.25 V to −12.6 V); establishes bias for internal transistors |
| 4 (+VS) | Positive Supply Rail | Connects to positive supply (+2.25 V to +12.6 V); powers all active circuitry |
| 5 (PD) | Power-Down Control | Logic-input pin: VIH ≥ +VS − 1.5 V enables operation; VIL ≤ +VS − 2.5 V disables output stage |
| 6 (OUT) | Single-Ended Output | Drives 150 Ω loads to ±3.3 V; requires external termination for impedance matching in video lines |
| 7 (REF) | Output Reference Level | Sets dc offset of OUT; typically tied to mid-supply or ground for single-ended output centering |
| 8 (FB) | Feedback Connection | Connects to external RF resistor; forms closed-loop gain path with RG on +IN/−IN |
Key Features
| Feature | Design Value |
|---|---|
| User-adjustable gain | Gain set precisely by external RF/RG ratio (e.g., G = +10 with RF = 10×RG); no internal compensation required |
| High-frequency CMRR | 70 dB maintained at 10 MHz-enables use of low-cost unshielded twisted-pair instead of coaxial cable |
| Wide supply range | Operates from single +5 V to ±12 V-supports legacy 5 V systems and high-dynamic-range ±12 V instrumentation |
| Low distortion | −74 dBc worst harmonic @ 5 MHz (1 V p-p); preserves color fidelity and timing accuracy in NTSC/PAL video |
| Fast power-down | 0.5 μs enable time and sub-1 mA shutdown current-ideal for frame-synchronized channel gating in multi-camera systems |
Applications
| Industrial Camera Interface | Broadcast Video Receiver |
|---|---|
Use Scenario: Transmitting uncompressed HD video from remote machine vision cameras over 100 m CAT-5e cable. IC Role / Device Role / Timing Role: Differential receiver converting twisted-pair signals to single-ended baseband video for ADC sampling. Use Value: 200 MHz bandwidth and 70 dB CMRR at 10 MHz suppress crosstalk and EMI, eliminating need for isolation transformers. |
Use Scenario: Receiving SMPTE 259M serial digital video signals in studio routing switchers. IC Role / Device Role / Timing Role: High-fidelity line receiver restoring signal amplitude and common-mode immunity before CDR clock recovery. Use Value: 1060 V/μs slew rate preserves edge integrity for 270 Mbps data eye; ±10.5 V input range accommodates driver output offsets. |
| Test Equipment Signal Conditioning | Medical Imaging Data Link |
Use Scenario: Digitizing high-resolution analog waveforms from oscilloscope front-ends with minimal added noise. IC Role / Device Role / Timing Role: Low-noise differential preamplifier boosting weak sensor signals before 14-bit ADC conversion. Use Value: 4.5 nV/√Hz input noise ensures >70 dB SNR at 10 MHz, preserving small-signal resolution in spectral analysis. |
Use Scenario: Transmitting ultrasound echo data from probe head to processing unit through flexible cable harnesses. IC Role / Device Role / Timing Role: Differential receiver compensating for frequency-dependent loss in miniature coaxial or twisted-pair assemblies. Use Value: Gain adjustability (G ≥ +10) restores signal amplitude degraded over 2–3 m cable runs without adding quantization error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar differential receiver amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8130ARZ-REEL | Stable at G = +1; 270 MHz bandwidth but higher 12.5 nV/√Hz noise; lower CMRR (80 dB @ 2 MHz) | Better suited for unity-gain video distribution; less effective for long-cable, high-attenuation scenarios | Select AD8130ARZ-REEL when gain = 1 is required and noise floor is secondary to bandwidth |
| THS4561IRGET | 2.1 GHz bandwidth, 2.3 nV/√Hz noise, but only 60 dB CMRR @ 10 MHz; requires external VOCM reference | Optimized for high-speed ADC drivers, not long-cable reception; lacks integrated power-down | Choose THS4561IRGET for ultra-wideband signal chain front-ends where CMRR > 70 dB is not required |
Compared with AD8129ARZ-REEL, AD8130ARZ-REEL offers higher bandwidth at unity gain but sacrifices noise performance and long-cable CMRR; THS4561IRGET provides wider bandwidth and lower noise but lacks the integrated power-down and high-frequency CMRR needed for robust twisted-pair reception.
Availability
AD8129ARZ-REEL is available at Aetrix Electronics and suitable for industrial camera interfaces, broadcast video receivers, test equipment signal conditioning, and medical imaging data links requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD8129ARZ-REEL 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, serving precision instrumentation, communications, and industrial markets since 1965.
The AD8129ARZ-REEL belongs to Analog Devices' high-speed differential receiver amplifier product line, designed specifically for robust signal recovery in twisted-pair transmission systems where noise immunity, gain flexibility, and power efficiency are critical.
FAQ
What is the maximum recommended supply voltage for AD8129ARZ-REEL?
The AD8129ARZ-REEL supports a total supply voltage range of ±2.25 V to ±12.6 V, meaning the absolute maximum difference between +VS and −VS is 25.2 V. Exceeding ±12.6 V violates Absolute Maximum Ratings and risks permanent damage. For reliable operation at full specification, ±12 V is the highest recommended dual-supply configuration per the ±12 V specifications table.
Does AD8129ARZ-REEL require external resistors to set gain?
Yes, AD8129ARZ-REEL uses external resistors to configure closed-loop gain: RF connects from OUT to FB (Pin 8), and RG connects from FB to either +IN or −IN. For G = +10, RF must be ten times RG (e.g., RF = 10 kΩ, RG = 1 kΩ). The device is not internally compensated for fixed gains and relies on this resistor network for stability and accuracy.
Can AD8129ARZ-REEL drive a 75 Ω video load directly?
No, AD8129ARZ-REEL is not specified to drive 75 Ω loads. Its output voltage swing degrades below ±2.3 V when loaded with 75 Ω (per differential clipping level specs), and output current is rated for ≥150 Ω. For 75 Ω video applications, a series 75 Ω resistor should be used with proper termination at the destination to avoid signal reflection and amplitude loss.
What is the purpose of the REF pin on AD8129ARZ-REEL?
The REF pin (Pin 7) sets the dc output common-mode voltage of AD8129ARZ-REEL. When tied to a stable reference (e.g., mid-supply or ground), it centers the single-ended output voltage. This allows level-shifting to match downstream ADC input ranges or video sync requirements without additional op-amp stages.
How does the power-down function behave on AD8129ARZ-REEL?
When the PD pin (Pin 5) is driven below VIL (≤ +VS − 2.5 V), AD8129ARZ-REEL enters power-down mode: output is disabled (high-impedance), quiescent current drops to ≤0.85 mA, and enable time is ≤0.5 μs. The input stage remains active, preserving bias conditions for rapid wake-up-critical for burst-mode video acquisition.
AD8129ARZ-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Differential
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 1070V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 200 MHz
- Current - Input Bias:
- 500 nA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 13mA
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 25.2 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AD8129ARZ-REEL FAQ
1.How can I place an order for AD8129ARZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8129ARZ-REEL 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 AD8129ARZ-REEL reliable?
The price and inventory of AD8129ARZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8129ARZ-REEL is usually 5 days.
3.What payment methods are accepted for AD8129ARZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8129ARZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8129ARZ-REEL?
AD8129ARZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8129ARZ-REEL 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 AD8129ARZ-REEL?
For technical support, including AD8129ARZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8129ARZ-REEL requirements.
6.How does Aetrix verify that AD8129ARZ-REEL is sourced from the original manufacturer or authorized distributors?
All AD8129ARZ-REEL 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 AD8129ARZ-REEL meets industry standards.
7.What is the process for return or replacement of AD8129ARZ-REEL?
All AD8129ARZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD8129ARZ-REEL, 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 AD8129ARZ-REEL part is unused and in its original packaging.
Return procedure for AD8129ARZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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