Analog Devices Inc. AD9632ARZ
- Part No.:
- AD9632ARZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD9632ARZ.pdf
- Description:
- IC VOLTAGE FEEDBACK 1 CIRC 8SOIC
- Quantity:
- Payment:

- Shipping:

Inventory:559
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Product details
Overview
AD9632ARZ from Analog Devices is a high-speed voltage feedback operational amplifier optimized for gain-of-2 stable operation, delivering 250 MHz small-signal bandwidth, 180 MHz large-signal bandwidth (4 Vp-p), 1300 V/μs slew rate, and −74 dBc third-harmonic distortion at 20 MHz into 500 Ω - enabling precision ADC input driving in professional video and IF/RF signal chains.
For engineers reviewing the AD9632ARZ datasheet, AD9632ARZ pinout, AD9632ARZ application, or AD9632ARZ equivalent, key selection criteria include its G = +2 stability requirement, SOIC-8 package thermal resistance (140 °C/W), 16 ns settling time to 0.01%, and ultralow 7.0 nV/√Hz input voltage noise - critical for high-fidelity analog front-end design.
Technical Context
The AD9632ARZ employs a proprietary voltage feedback architecture that combines classical op amp predictability with current-feedback-like pulse response. Its 65° phase margin ensures stability at minimum gain of +2, while on-demand output current enables 1300 V/μs slew rate independent of quiescent bias.
Unlike conventional voltage feedback amplifiers, its bandwidth scales inversely with closed-loop gain: AD9632ARZ achieves 250 MHz (−3 dB) at G = +2 versus 320 MHz for AD9631 at G = +1. Input common-mode range extends to ±3.4 V, and balanced high-impedance inputs support flexible active filter topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal BW | 250 MHz (−3 dB, VOUT ≤ 0.4 Vp-p): supports wideband IF sampling up to 125 MSPS. |
| Large-signal BW | 180 MHz (4 Vp-p, 0.1 dB flatness): maintains fidelity for fast transient video or pulse signals. |
| Slew rate | 1300 V/μs: enables full-scale 4 V step settling in 16 ns without slewing-induced distortion. |
| THD @ 20 MHz | −74 dBc (3rd harmonic, RL = 500 Ω): preserves SFDR > 90 dB in 12-bit ADC driver applications. |
| Input voltage noise | 7.0 nV/√Hz (1–200 MHz): limits integrated noise to 100 μVrms over 0.1–200 MHz band. |
| Supply current | 17 mA (±5 V): enables low-power high-speed operation without thermal derating in SOIC-8. |
| Settling time | 16 ns to 0.01% (2 V step): meets timing budgets for sub-62.5 ns clock cycles in flash ADC interfaces. |
Pinout & Package
AD9632ARZ is housed in an 8-lead SOIC (R) package with exposed pad thermal enhancement. Pin 1 is marked by a dot; pins are not internally connected except as defined below.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No connect | Internally unconnected; must remain floating per datasheet Note 1. |
| 2 (−IN) | Inverting input | High-impedance node (500 kΩ); requires matched trace length and impedance control for differential configurations. |
| 3 (+IN) | Noninverting input | High-impedance node (500 kΩ); series 100–130 Ω resistor recommended to suppress parasitic oscillation. |
| 4 (−VS) | Negative supply | Connect to clean −5 V rail with local 0.1 µF + 10 µF bypassing; shared return path must avoid ground bounce. |
| 5 (NC) | No connect | Internally unconnected; must remain floating per datasheet Note 1. |
| 6 (OUT) | Output | Capable of ±3.9 V swing into 150 Ω; series 10–20 Ω resistor required when driving >10 pF capacitive loads. |
| 7 (+VS) | Positive supply | Connect to clean +5 V rail with local 0.1 µF + 10 µF bypassing; decoupling must be placed within 2 mm of pin. |
| 8 (NC) | No connect | Internally unconnected; must remain floating per datasheet Note 1. |
Key Features
| Feature | Design Value |
|---|---|
| G = +2 stability | Guarantees unconditional stability without external compensation, eliminating risk of peaking in gain-of-2 video line drivers. |
| 16 ns settling to 0.01% | Enables direct interface to 12-bit flash ADCs with sampling rates up to 62.5 MSPS without additional delay calibration. |
| 0.02% differential gain error | Meets SMPTE 259M broadcast video spec for composite NTSC/PAL signal integrity at 3.58 MHz. |
| 7.0 nV/√Hz input noise | Minimizes added noise floor in DAC current-to-voltage conversion, preserving ENOB in 16-bit audio reconstruction filters. |
| 1300 V/μs slew rate | Prevents slew-induced harmonic distortion during 4 Vp-p IF signal amplification up to 180 MHz. |
Applications
| ADC Input Driver | Differential Amplifier |
|---|---|
Use Scenario: Driving the analog input of a 12-bit, 65 MSPS flash ADC in a medical ultrasound receive chain. IC Role / Device Role / Timing Role: Single-ended to differential conversion and gain-of-2 signal conditioning with <16 ns settling to meet aperture uncertainty budget. Use Value: −74 dBc THD at 20 MHz preserves SFDR > 90 dB, ensuring accurate echo amplitude measurement across 15 MHz bandwidth. | Use Scenario: Building a fully differential amplifier stage for baseband I/Q signal processing in a software-defined radio receiver. IC Role / Device Role / Timing Role: High-Z input buffer with matched gain and phase response across both channels for precise image rejection. Use Value: 0.02° differential phase error and 65° phase margin ensure <0.1 dB gain mismatch and <0.5° phase skew up to 100 MHz. |
| Professional Video Line Driver | IF/RF Amplifier |
Use Scenario: Buffering and level-shifting SDI/HDMI video signals in broadcast camera head electronics. IC Role / Device Role / Timing Role: Gain-of-2 noninverting driver with DC-coupled output to drive 75 Ω coaxial cable loads. Use Value: 0.02% differential gain and 0.02° differential phase errors maintain color fidelity and timing accuracy per SMPTE 292M spec. | Use Scenario: Amplifying 45 MHz IF signals in a satellite TV tuner front-end before quadrature demodulation. IC Role / Device Role / Timing Role: Fixed-gain broadband amplifier with 250 MHz −3 dB bandwidth and low group delay variation. Use Value: 46 dBm third-order intercept at 25 MHz suppresses adjacent-channel interference in multi-carrier DVB-S2 systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9631ARZ | Unity-gain stable; 320 MHz small-signal BW; −72 dBc THD @ 20 MHz; same SOIC-8 package. | Requires different feedback network (RF = 140 Ω vs. 425 Ω for AD9632ARZ); unsuitable for fixed G = +2 designs without redesign. | Select AD9631ARZ only if circuit requires G = +1 or variable gain with stability down to unity. |
| LMH6702MA/NOPB | G = +1 stable; 1.8 GHz small-signal BW; higher 10.5 nV/√Hz noise; 30 mA supply current; SOIC-8. | Higher power and noise limit use in low-noise ADC drivers; superior bandwidth suits RF sampling above 500 MSPS. | Choose LMH6702MA/NOPB only when >1 GHz bandwidth is mandatory and power/noise trade-offs are acceptable. |
Compared with AD9631ARZ and LMH6702MA/NOPB, AD9632ARZ uniquely balances G = +2 stability, 250 MHz bandwidth, 7.0 nV/√Hz noise, and 17 mA quiescent current - making it optimal for cost-sensitive, thermally constrained 12-bit ADC driver and broadcast video applications where unity-gain instability or excessive power dissipation must be avoided.
Availability
AD9632ARZ is available at Aetrix Electronics and suitable for professional video equipment, high-speed data acquisition systems, and IF/RF signal conditioning requiring stable component supply, guaranteed long-term availability, and full traceability from Analog Devices' manufacturing lot.
Supply support for AD9632ARZ 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 AD963x family was engineered specifically for demanding high-speed analog signal conditioning - targeting ADC/DAC interface, video line driving, and IF amplification where bandwidth, settling accuracy, and harmonic distortion performance are critical.
FAQ
What is the minimum stable gain for AD9632ARZ?
The AD9632ARZ is specified for stable operation at gains of +2 or greater. It is not unity-gain stable; attempting G = +1 may cause oscillation or degraded phase margin. The AD9631ARZ variant is provided for unity-gain applications. Always verify stability with actual PCB layout and load conditions per Figure 31's open-loop gain/phase plot in the AD9632ARZ datasheet.
Does AD9632ARZ require external compensation components?
No, AD9632ARZ does not require external compensation components for stability at G ≥ +2. Its internal compensation is optimized for fixed gain-of-2 operation. However, a 100–130 Ω series resistor on the +IN pin is recommended to suppress parasitic oscillations caused by trace inductance, as detailed in the Feedback Resistor Choice section of the datasheet.
What is the maximum output voltage swing for AD9632ARZ at ±5 V supplies?
At ±5 V supplies and RL = 150 Ω, AD9632ARZ delivers ±3.9 V output swing (7.8 Vp-p). This is confirmed in Table 1 under "Output Voltage Range". Swing decreases with lower load impedance - e.g., ±3.2 V into 100 Ω - and varies slightly with temperature, as shown in Figure 49.
Can AD9632ARZ drive capacitive loads directly?
AD9632ARZ is optimized for resistive loads. Driving capacitive loads >10 pF requires a series resistor (RSERIES) between the output and load, with value selected per Figure 63 (e.g., 15 Ω for 15 pF). Omitting RSERIES risks peaking, overshoot, or oscillation due to phase shift introduced by CL.
Is AD9632ARZ pin-compatible with AD9631ARZ?
Yes, AD9632ARZ and AD9631ARZ share identical SOIC-8 (R) packaging and pinout - including NC pins at positions 1, 5, and 8. However, their internal compensation differs: AD9631ARZ is unity-gain stable while AD9632ARZ requires G ≥ +2. Swapping them without adjusting feedback resistors will compromise stability or bandwidth.
AD9632ARZ 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:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 1500V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 250 MHz
- Current - Input Bias:
- 2 µA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 16mA
- 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
AD9632ARZ FAQ
1.How can I place an order for AD9632ARZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9632ARZ 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 AD9632ARZ reliable?
The price and inventory of AD9632ARZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9632ARZ is usually 5 days.
3.What payment methods are accepted for AD9632ARZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9632ARZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9632ARZ?
AD9632ARZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9632ARZ 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 AD9632ARZ?
For technical support, including AD9632ARZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9632ARZ requirements.
6.How does Aetrix verify that AD9632ARZ is sourced from the original manufacturer or authorized distributors?
All AD9632ARZ 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 AD9632ARZ meets industry standards.
7.What is the process for return or replacement of AD9632ARZ?
All AD9632ARZ units undergo pre-shipment inspection (PSI). If there is an issue with AD9632ARZ, 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 AD9632ARZ part is unused and in its original packaging.
Return procedure for AD9632ARZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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