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Analog Devices Inc. AD8129ARZ-REEL7
- Part No.:
- AD8129ARZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8129ARZ-REEL7.pdf
- Description:
- IC OPAMP DIFF 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,630
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Product details
Overview
AD8129ARZ-REEL7 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. It delivers 200 MHz −3 dB bandwidth (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 over unshielded twisted-pair cables in industrial vision and broadcast infrastructure.
For engineers reviewing the AD8129ARZ-REEL7 datasheet, AD8129ARZ-REEL7 pinout, AD8129ARZ-REEL7 application, or AD8129ARZ-REEL7 equivalent, key selection criteria include its 94 dB min CMRR (dc–100 kHz), ±10.5 V input common-mode range, user-adjustable gain via external resistors, power-down capability, and SOIC-8 packaging suitable for space-constrained PCB layouts with high-frequency routing integrity.
Technical Context
The AD8129ARZ-REEL7 implements a fully differential input stage with matched internal transconductance cells and a precision single-ended output stage, supporting stable operation at gains ≥ +10 without external compensation. Its architecture maintains >70 dB CMRR up to 10 MHz and enables direct interfacing with AD8131/AD8132 differential drivers.
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 for sub-microsecond enable/disable control - critical for power-gated systems and multi-channel video receivers requiring synchronized channel activation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| −3 dB Bandwidth | 200 MHz (VOUT ≤ 0.3 V p-p, ±5 V supply) - supports HD video baseband and 100 Mbps+ digital signaling without attenuation. |
| Slew Rate | 1060 V/μs @ G = +10 - ensures faithful reproduction of fast edges in composite video and high-speed serial data. |
| Input Voltage Noise | 4.5 nV/√Hz (f ≥ 10 kHz) - preserves SNR in low-amplitude, long-distance analog signal chains. |
| CMRR | 94 dB min (dc–100 kHz), 70 dB @ 10 MHz - rejects ground-loop noise and EMI on unshielded cable runs. |
| Input Common-Mode Range | ±10.5 V (±12 V supply) - accommodates large dc offsets between transmitter and receiver grounds. |
| Power-Down Current | 0.85 mA (PD ≤ VIL, ±5 V) - reduces system standby power in multi-channel video distribution units. |
| Operating Temp Range | −40°C to +125°C - qualified for under-hood automotive camera links and industrial machine vision enclosures. |
Pinout & Package
AD8129ARZ-REEL7 is housed in an 8-lead SOIC package (JEDEC MS-012AA, 5.0 mm × 6.2 mm, 1.27 mm pitch) with standard thermal pad layout and moisture sensitivity level MSL-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (+IN) | Differential Input Noninverting | High-impedance (1 MΩ) node accepting balanced signal; referenced to REF for level translation. |
| 2 (−IN) | Differential Input Inverting | Matched to +IN; differential pair defines gain and common-mode rejection performance. |
| 3 (−VS) | Negative Supply Rail | Connects to negative supply (−2.25 V to −12.6 V); must be decoupled locally with 0.1 μF ceramic. |
| 4 (+VS) | Positive Supply Rail | Connects to positive supply (+2.25 V to +12.6 V); shared decoupling with −VS improves PSRR. |
| 5 (PD) | Power-Down Control | Active-low logic input; drives output to high-Z when pulled low (< +VS − 2.5 V). |
| 6 (OUT) | Single-Ended Output | Low-impedance (≈10 Ω) voltage source; drives 150 Ω loads directly with ±3.3 V swing (±12 V supply). |
| 7 (REF) | Output Reference Level | Sets dc offset of OUT; tied to ground for single-supply operation or to mid-rail for bipolar output swing. |
| 8 (FB) | Feedback Connection | Connects to external resistor network (with RG) to set closed-loop gain: G = 1 + RF/RG. |
Key Features
| Feature | Design Value |
|---|---|
| User-adjustable gain | Gain set by external RF/RG ratio (G = +10 typical); no stability compromise across 1 kΩ–10 kΩ resistor values. |
| High CMRR at RF | Maintains ≥70 dB rejection up to 10 MHz - eliminates need for isolation transformers in CCTV and broadcast links. |
| Wide supply range | Operates from +4.5 V single supply to ±12.6 V dual supply - simplifies integration into legacy and new designs. |
| Low distortion | −74 dBc worst harmonic @ 5 MHz (1 V p-p) - meets NTSC/PAL differential video receiver linearity requirements. |
| Fast power-down | Enable time ≤ 0.5 μs - supports frame-synchronized blanking in multi-camera machine vision systems. |
Applications
| Industrial Machine Vision | Broadcast Video Distribution |
|---|---|
|
Use Scenario: High-resolution camera sensor output transmitted over 50 m unshielded twisted-pair cable to FPGA-based image processor. IC Role / Device Role / Timing Role: Differential receiver converting LVDS-like signals to single-ended CMOS/TTL-compatible levels with minimal jitter addition. Use Value: 200 MHz bandwidth and 94 dB CMRR suppress crosstalk and ground noise, eliminating need for costly shielded cables or repeaters. |
Use Scenario: SDI signal regeneration in rack-mounted video switcher with hot-swappable I/O modules. IC Role / Device Role / Timing Role: Cable equalization and differential-to-single-ended conversion prior to reclocking and retransmission. Use Value: Adjustable gain compensates for frequency-dependent loss in BNC coax runs; power-down enables per-port shutdown during module removal. |
| Automotive ADAS Camera Link | Test & Measurement Equipment |
|
Use Scenario: Front-facing radar-assisted camera feeding AEC-Q200-compliant ECU over 8 m twisted-pair harness. IC Role / Device Role / Timing Role: Robust signal recovery stage rejecting engine EMI and battery ripple-induced common-mode interference. Use Value: ±10.5 V input common-mode range handles ground potential differences between chassis and camera housing without isolation. |
Use Scenario: High-fidelity signal acquisition front-end in 1 GHz oscilloscope input channel. IC Role / Device Role / Timing Role: Low-noise, wideband differential probe amplifier conditioning signals before ADC sampling. Use Value: 4.5 nV/√Hz input noise and 1060 V/μs slew rate preserve signal fidelity for accurate rise-time and jitter measurements. |
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-REEL7 | Lower gain stability (G = +1 stable), higher noise (12.5 nV/√Hz), wider bandwidth (270 MHz @ G = +1) | Better suited for unity-gain video line receivers; less effective for attenuated long-cable signals requiring gain ≥ +10 | Select AD8130ARZ-REEL7 only when gain = +1 is required and lower noise is not critical. |
| THS4561IRGET | Higher power (18.5 mA vs. 11.6 mA), lower CMRR (80 dB @ 1 MHz), integrated resistor network for fixed gains | Lacks user-adjustable gain; optimized for fixed-gain instrumentation rather than variable-cable-loss compensation | Choose THS4561IRGET for simplified BOM where gain is fixed and board area is constrained. |
Compared with AD8129ARZ-REEL7, AD8130ARZ-REEL7 trades gain flexibility for bandwidth at unity gain, while THS4561IRGET sacrifices CMRR and adjustability for integration - making AD8129ARZ-REEL7 the optimal choice for long-cable, high-CMRR, gain-adjustable differential reception.
Availability
AD8129ARZ-REEL7 is available at Aetrix Electronics and suitable for industrial machine vision, broadcast video distribution, and automotive ADAS camera link applications requiring stable component supply, extended temperature operation, and long-term lifecycle support.
Supply support for AD8129ARZ-REEL7 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.
The AD8129 belongs to Analog Devices' high-speed differential receiver amplifier product line, engineered specifically for noise-immune signal recovery in video, instrumentation, and communications systems using twisted-pair cabling.
FAQ
What is the maximum recommended supply voltage for AD8129ARZ-REEL7?
The absolute maximum total supply voltage for AD8129ARZ-REEL7 is 26.4 V, with operational limits of ±2.25 V to ±12.6 V. Exceeding ±12.6 V risks permanent damage; for reliable long-term operation, Analog Devices specifies ±12 V as the maximum rated dual supply. The device maintains full AC/DC specifications across this range, including 200 MHz bandwidth and 94 dB CMRR at ±5 V.
Can AD8129ARZ-REEL7 be used with single-supply operation?
Yes, AD8129ARZ-REEL7 supports single-supply operation from +4.5 V to +25.2 V (with −VS grounded). When operated this way, the REF pin sets the output common-mode level - typically tied to VCC/2 for rail-to-rail swing or to ground for unipolar output. Input common-mode range extends to +1.25 V to +3.8 V (at +5 V supply), enabling compatibility with many single-ended sensor outputs and DACs.
How does the power-down (PD) pin function on AD8129ARZ-REEL7?
The PD pin on AD8129ARZ-REEL7 is an active-low digital control input. When pulled below +VS − 2.5 V (VIL), it disables the output stage, placing OUT in high-impedance state and reducing quiescent current to 0.85 mA (±5 V). Enable time is ≤ 0.5 μs. This feature allows dynamic channel gating in multi-receiver systems without external analog switches or relays.
What is the minimum external resistor value recommended for gain-setting on AD8129ARZ-REEL7?
Analog Devices recommends minimum RF and RG values of 250 Ω for stable operation and optimal noise performance. Lower values increase power dissipation and may degrade bandwidth flatness; values below 250 Ω risk instability due to parasitic capacitance at the FB and REF pins. For G = +10, typical design uses RF = 2.21 kΩ and RG = 249 Ω, achieving precise gain while maintaining >185 MHz bandwidth.
Is AD8129ARZ-REEL7 pin-compatible with AD8130ARZ-REEL7?
Yes, AD8129ARZ-REEL7 and AD8130ARZ-REEL7 share identical SOIC-8 pinouts, terminal functions, and footprint dimensions. Both devices use the same connection diagram (Figure 1), allowing direct PCB-level substitution where gain, noise, and bandwidth requirements align. However, AD8129ARZ-REEL7 is optimized for G ≥ +10 and low-noise reception, whereas AD8130ARZ-REEL7 is optimized for G = +1 stability and higher bandwidth at unity gain.
AD8129ARZ-REEL7 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-REEL7 FAQ
1.How can I place an order for AD8129ARZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8129ARZ-REEL7 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-REEL7 reliable?
The price and inventory of AD8129ARZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8129ARZ-REEL7 is usually 5 days.
3.What payment methods are accepted for AD8129ARZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8129ARZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8129ARZ-REEL7?
AD8129ARZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8129ARZ-REEL7 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-REEL7?
For technical support, including AD8129ARZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8129ARZ-REEL7 requirements.
6.How does Aetrix verify that AD8129ARZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All AD8129ARZ-REEL7 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-REEL7 meets industry standards.
7.What is the process for return or replacement of AD8129ARZ-REEL7?
All AD8129ARZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD8129ARZ-REEL7, 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-REEL7 part is unused and in its original packaging.
Return procedure for AD8129ARZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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