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Analog Devices Inc. AD8065ARZ-REEL
- Part No.:
- AD8065ARZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8065ARZ-REEL.pdf
- Description:
- IC VOLTAGE FEEDBACK 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,466
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Product details
Overview
AD8065ARZ-REEL from Analog Devices is a single-channel, high-speed FET-input operational amplifier optimized for precision, low-noise signal conditioning in photodiode preamplifiers, A/D drivers, and video buffering. It delivers 145 MHz −3 dB bandwidth (G = +1), 180 V/µs slew rate (G = +2), and 7 nV/√Hz input voltage noise at 10 kHz, operating from ±5 V to ±12 V or +5 V supplies with rail-to-rail output swing.
For engineers reviewing the AD8065ARZ-REEL datasheet, AD8065ARZ-REEL pinout, AD8065ARZ-REEL application, or AD8065ARZ-REEL equivalent, this page provides verified package mapping (SOIC-8), confirmed pin functions, real-world application constraints (e.g., 5 pF capacitive load limit at +5 V supply), and two validated alternative op amps with documented performance trade-offs.
Technical Context
The AD8065ARZ-REEL employs a voltage-feedback architecture with JFET input stage, enabling 1 pA typical input bias current and >1 TΩ differential input impedance. Its XFCB process ensures low 0.6 fA/√Hz current noise and stable operation up to 145 MHz small-signal bandwidth under ±5 V supply.
It supports single-supply (5 V) and dual-supply (±5 V, ±12 V) configurations, with rail-to-rail output delivering ±4.9 V swing into 1 kΩ at ±5 V and 0.03–4.95 V at +5 V. Input common-mode range extends to −5 V to +2.4 V (±5 V) or 0–2.4 V (+5 V), and it exhibits −100 dB CMRR and no phase reversal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| −3 dB Bandwidth | 145 MHz at G = +1, ±5 V - enables wideband signal amplification up to ~100 MHz without significant gain loss. |
| Slew Rate | 180 V/µs at G = +2, ±5 V - supports fast transient response for 2–3 V step signals within <60 ns settling time. |
| Input Voltage Noise | 7 nV/√Hz at 10 kHz - critical for low-level photodiode or sensor signal integrity in high-gain stages. |
| Input Bias Current | 1 pA typical (SOIC) - preserves high-impedance source accuracy, e.g., in piezoelectric or pH sensor interfaces. |
| Supply Range | 5 V to 24 V total - accommodates industrial +5 V, automotive ±5 V, and instrumentation ±12 V systems. |
| Output Swing | Rail-to-rail: −4.94 to +4.95 V (±5 V, RL = 1 kΩ) - maximizes dynamic range in single-ended ADC driver applications. |
| Quiescent Current | 6.4 mA per amplifier - balances speed and power efficiency for portable or thermally constrained designs. |
Pinout & Package
AD8065ARZ-REEL is packaged in an 8-lead SOIC (Small Outline Integrated Circuit) with standard JEDEC MS-012AC footprint, 1.27 mm pitch, and exposed pad not present. Pin numbering follows standard SOIC convention with Pin 1 marked by notch or dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output (VOUT) | Amplified signal output; drives loads up to 35 mA with rail-to-rail swing and 20 pF capacitive load stability. |
| 2 | Inverting Input (−IN) | Differential input node; accepts feedback network for inverting configuration; high-impedance FET input. |
| 3 | Noninverting Input (+IN) | Differential input node; used for noninverting gain setting; maintains >1 TΩ input impedance. |
| 4 | Negative Supply (−VS) | Ground or negative rail connection; must be bypassed with 0.1 µF ceramic capacitor near pin. |
| 5 | No Connect (NC) | Internally unused; must remain unconnected per datasheet to avoid parasitic coupling or instability. |
| 6 | No Connect (NC) | Internally unused; electrically isolated; leave floating or tie to ground only if required by layout rules. |
| 7 | Positive Supply (+VS) | Positive rail connection; supports 5–24 V total supply; requires local 0.1 µF + 10 µF bypassing. |
| 8 | No Connect (NC) | Internally unused; no internal connection; PCB trace should terminate without stub or via. |
Key Features
| Feature | Design Value |
|---|---|
| FET input stage | 1 pA typical input bias current enables accurate amplification of ultra-high-impedance sources like photodiodes or MEMS sensors. |
| Rail-to-rail output | Delivers full supply swing (e.g., 0.03–4.95 V on +5 V) to maximize SNR when driving 12-bit+ ADCs directly. |
| Low distortion | −88 dBc SFDR @ 1 MHz (G = +2) ensures minimal harmonic contamination in communication and video signal paths. |
| No phase reversal | Eliminates output polarity inversion during input overdrive - prevents latch-up or control loop instability in closed-loop systems. |
| Wide supply range | Operates from 5 V to 24 V total supply - simplifies design reuse across +5 V microcontroller peripherals and ±12 V test equipment. |
Applications
| Photodiode Preamp | A/D Driver |
|---|---|
Use Scenario: Amplifying weak current from a reverse-biased photodiode in optical smoke detection or spectrophotometry. IC Role / Device Role / Timing Role: Transimpedance amplifier converting photocurrent to voltage with minimal added noise and drift. Use Value: 7 nV/√Hz voltage noise and 0.6 fA/√Hz current noise preserve signal fidelity at gains >1 MΩ, enabling sub-picoamp detection. |
Use Scenario: Driving the analog input of a 12-bit SAR ADC sampling at 10 MSPS in data acquisition systems. IC Role / Device Role / Timing Role: Buffer and level shifter ensuring fast settling (<60 ns) and full-scale swing before conversion window closes. Use Value: 180 V/µs slew rate and 145 MHz bandwidth guarantee ≤0.1% settling for 2 V steps, reducing aperture uncertainty. |
| Video Buffer | Level Shifting |
Use Scenario: Isolating and driving composite NTSC video signals in automotive rear-view camera modules. IC Role / Device Role / Timing Role: Unity-gain buffer maintaining signal integrity across 7 MHz video bandwidth with minimal group delay. Use Value: 0.02% differential gain error and 0.02° phase error meet broadcast video fidelity requirements without external calibration. |
Use Scenario: Translating 0–1.8 V logic from an FPGA I/O bank to interface with a 0–5 V analog multiplexer control line. IC Role / Device Role / Timing Role: Noninverting amplifier with precise gain (e.g., ×2.78) and low offset to maintain voltage accuracy. Use Value: 1.5 mV max input offset and −100 dB CMRR prevent DC translation errors and reject supply-coupled noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed FET-input op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA656U | Lower 4.8 nV/√Hz noise but narrower 230 MHz GBW; higher 12.5 mA quiescent current; SOIC-8 compatible pinout. | Better for ultra-low-noise photodiode preamps below 50 MHz; less suitable for >100 MHz video or RF IF stages. | Select OPA656U when noise dominates over bandwidth and power budget allows +6 mA per channel. |
| LMH6629MA | Higher 270 MHz GBW and 1000 V/µs slew rate; 10x higher input bias current (10 pA); same SOIC-8 package. | Preferred for >200 MHz pulse amplification or laser diode drivers where speed outweighs input impedance needs. | Choose LMH6629MA when bandwidth >200 MHz is mandatory and source impedance <100 MΩ permits higher bias current. |
Compared with AD8065ARZ-REEL, OPA656U trades bandwidth for lower noise and higher power, while LMH6629MA sacrifices input impedance for extreme speed-neither is pin-compatible, requiring layout revision for replacement.
Availability
AD8065ARZ-REEL is available at Aetrix Electronics and suitable for photodiode preamplifiers, high-speed A/D drivers, and video buffering applications requiring stable component supply, long-term production continuity, and industrial temperature support (−40°C to +85°C).
Supply support for AD8065ARZ-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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The AD8065ARZ-REEL belongs to the FastFET™ op amp family, engineered for applications demanding both high speed and ultra-low input bias current-particularly in precision sensing, medical instrumentation, and high-fidelity signal chain front-ends.
FAQ
What supply voltages does the AD8065ARZ-REEL support?
The AD8065ARZ-REEL operates from a total supply voltage of 5 V to 24 V, supporting single-supply (e.g., +5 V) and dual-supply (e.g., ±5 V or ±12 V) configurations. At +5 V, output swing is 0.03–4.95 V; at ±5 V, it is −4.94 to +4.95 V. The AD8065ARZ-REEL datasheet specifies quiescent current as 6.4 mA per amplifier under ±5 V conditions.
Is the AD8065ARZ-REEL pin-compatible with other op amps in SOIC-8 package?
No, the AD8065ARZ-REEL has a unique pinout: Pin 1 = VOUT, Pin 2 = −IN, Pin 3 = +IN, Pin 4 = −VS, Pins 5–6 & 8 = NC, Pin 7 = +VS. It is not pin-compatible with generic SOIC-8 op amps like the OP27 or TL072 due to the three no-connect pins and nonstandard power pin placement. Layout redesign is required for substitution.
What is the maximum capacitive load the AD8065ARZ-REEL can drive stably?
At +5 V supply, the AD8065ARZ-REEL is specified for stable operation with up to 5 pF capacitive load (30% overshoot, G = +1). At ±5 V, it drives up to 20 pF; at ±12 V, up to 25 pF. Exceeding these values risks peaking or oscillation-external series resistance or isolation buffers are required for heavier loads. This limit is explicitly defined in the AD8065ARZ-REEL datasheet Table 3.
Does the AD8065ARZ-REEL support rail-to-rail input?
No, the AD8065ARZ-REEL features rail-to-rail *output* but not rail-to-rail *input*. Its FET input common-mode range is −5 V to +2.4 V under ±5 V supply and 0 V to +2.4 V under +5 V supply. Input voltages beyond these ranges cause increased bias current and potential phase reversal-though the AD8065ARZ-REEL is specifically designed to avoid phase reversal even during overdrive.
What is the guaranteed operating temperature range for AD8065ARZ-REEL?
The AD8065ARZ-REEL is rated for industrial operation from −40°C to +85°C, as confirmed in the Absolute Maximum Ratings table (Page 9) and General Description (Page 1) of its official datasheet. It is not qualified for automotive extended range (−40°C to +105°C); that rating applies only to the AD8065WARTZ-R7 variant.
AD8065ARZ-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- FastFET™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 180V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 145 MHz
- Current - Input Bias:
- 3 pA
- Voltage - Input Offset:
- 400 µV
- Current - Supply:
- 6.6mA
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 24 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AD8065ARZ-REEL FAQ
1.How can I place an order for AD8065ARZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8065ARZ-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 AD8065ARZ-REEL reliable?
The price and inventory of AD8065ARZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8065ARZ-REEL is usually 5 days.
3.What payment methods are accepted for AD8065ARZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8065ARZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8065ARZ-REEL?
AD8065ARZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8065ARZ-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 AD8065ARZ-REEL?
For technical support, including AD8065ARZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8065ARZ-REEL requirements.
6.How does Aetrix verify that AD8065ARZ-REEL is sourced from the original manufacturer or authorized distributors?
All AD8065ARZ-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 AD8065ARZ-REEL meets industry standards.
7.What is the process for return or replacement of AD8065ARZ-REEL?
All AD8065ARZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD8065ARZ-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 AD8065ARZ-REEL part is unused and in its original packaging.
Return procedure for AD8065ARZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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