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Analog Devices Inc. AD8027ARZ
- Part No.:
- AD8027ARZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8027ARZ.pdf
- Description:
- IC VOLTAGE FEEDBACK 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:290
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Product details
Overview
AD8027ARZ from Analog Devices is a single-channel, rail-to-rail input/output high-speed voltage feedback amplifier optimized for low-voltage, high-fidelity signal conditioning. It delivers 190 MHz −3 dB bandwidth (G = +1), 100 V/µs slew rate, 4.3 nV/√Hz input voltage noise, and 120 dBc SFDR at 1 MHz - enabling precision ADC driving and professional video buffering in ±5 V or single 5 V systems.
For engineers reviewing the AD8027ARZ datasheet, AD8027ARZ pinout, AD8027ARZ application, or AD8027ARZ equivalent, this page provides verified technical context, SOIC-8 package mapping, real-world distortion performance data, and validated alternative options for high-speed analog signal chain design.
Technical Context
The AD8027ARZ employs Analog Devices' XFCB process to achieve rail-to-rail input operation extending 200 mV beyond supply rails without phase reversal, combined with a complementary bipolar input stage that switches between PNP and NPN differential pairs based on common-mode voltage. Its DISABLE/SELECT pin enables user-selectable crossover threshold (tristate for PNP-dominant, high for NPN-dominant) to minimize distortion across wide input ranges.
It features intrinsically low crossover distortion, 1.5 µV/°C offset drift, and 6.5 mA quiescent current per amplifier - balancing speed, precision, and power efficiency. The output stage supports rail-to-rail swing, 20 pF capacitive load drive, and fast overdrive recovery (40/45 ns), making it suitable for demanding transient-critical applications like high-resolution ADC front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| −3 dB Bandwidth | 190 MHz at G = +1 (±5 V, 0.2 Vp-p): enables full-spectrum fidelity in video and RF IF stages. |
| Slew Rate | 100 V/µs (G = −1): supports clean 2 V step response with ≤35 ns 0.1% settling time. |
| SFDR | 120 dBc at 1 MHz (2 Vp-p): ensures >16-bit dynamic range integrity when driving precision ADCs. |
| Input Voltage Noise | 4.3 nV/√Hz @ 100 kHz: preserves SNR in low-amplitude sensor and instrumentation signal paths. |
| Input Common-Mode Range | −5.2 V to +5.2 V on ±5 V supplies: allows direct interfacing to bipolar sensors and DAC outputs. |
| Quiescent Current | 6.5 mA per amplifier: enables high-speed operation within 300 mW total power budget at ±5 V. |
| Power-Down Current | 370 µA (DISABLE/SELECT = low): reduces system standby power by >94% without external circuitry. |
Pinout & Package
AD8027ARZ is packaged in an 8-lead SOIC (Small Outline Integrated Circuit) with standard JEDEC MS-012AC footprint (5.0 mm × 6.2 mm, 1.27 mm pitch). Pin 1 and Pin 5 are DNC (Do Not Connect); all other pins serve defined analog signal or power functions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5 | DNC | Unbonded internal pads - must remain unconnected to avoid parasitic coupling or latch-up risk. |
| 2 | −IN | Inverting input node: accepts differential or single-ended signals with rail-to-rail common-mode range. |
| 3 | +IN | Non-inverting input node: matched impedance and capacitance to −IN for balanced AC performance. |
| 4 | −VS | Negative supply rail: connects to ground (single-supply) or negative rail (dual-supply) with local 0.1 µF bypass. |
| 6 | VOUT | Amplifier output: drives 1 kΩ loads to rail-to-rail swing; stable with ≤20 pF capacitive loads. |
| 7 | +VS | Positive supply rail: operates from 2.7 V to 12 V; requires low-ESR ceramic decoupling near pin. |
| 8 | DISABLE/SELECT | Multi-function control: tristate → PNP-dominant crossover; high → NPN-dominant; low → power-down mode. |
Key Features
| Feature | Design Value |
|---|---|
| Selectably adjustable input crossover threshold | Enables optimization of distortion vs. input range: tristate (−5.2 V to +5.2 V CM range) or high (0.08–4.92 V on 5 V) for best SFDR in specific signal bands. |
| No phase reversal under overvoltage | Operates safely with inputs up to |VS| + 200 mV - eliminates output glitches during input transients or sensor fault conditions. |
| Rail-to-rail input and output | Supports full dynamic range utilization in low-voltage systems (e.g., 3 V or 5 V ADC interfaces) without level-shifting circuitry. |
| Low 1.5 µV/°C offset drift | Maintains DC accuracy across −40°C to +125°C industrial temperature range - critical for uncalibrated embedded instrumentation. |
| Integrated power-down mode | Reduces quiescent current to 370 µA while retaining fast 45 ns enable timing - ideal for duty-cycled signal acquisition systems. |
Applications
| Professional Video Signal Conditioning | High-Speed ADC Driver |
|---|---|
|
Use Scenario: Driving 1080p/60 Hz RGB or YUV video signals into 75 Ω coaxial cables with minimal gain flatness error and differential phase/gain distortion. IC Role / Device Role / Timing Role: Buffer and level-shift video DAC outputs while preserving NTSC/PAL timing integrity and color fidelity. Use Value: Achieves 0.1% differential gain error and 0.2° differential phase error at 5 V supply - meets broadcast-grade video spec without external trimming. |
Use Scenario: Amplifying sensor outputs prior to sampling by 16-bit SAR or sigma-delta ADCs operating at ≥1 MSPS. IC Role / Device Role / Timing Role: High-fidelity gain block with low noise and fast settling to prevent aperture uncertainty and code-dependent errors. Use Value: Delivers 120 dBc SFDR at 1 MHz and 35 ns 0.1% settling - ensures >15.5 ENOB for precision data acquisition systems. |
| Low-Voltage Instrumentation Front-End | Active Filter Stage |
|
Use Scenario: Conditioning microvolt-level thermocouple or bridge sensor outputs in battery-powered portable meters. IC Role / Device Role / Timing Role: Low-noise, rail-to-rail I/V converter and gain stage operating from 3 V coin-cell supply. Use Value: 4.3 nV/√Hz input voltage noise and 6.5 mA supply current enable >100 dB SNR in compact, low-power designs. |
Use Scenario: Implementing 2nd-order active band-pass or low-pass filters in communication channel equalization circuits. IC Role / Device Role / Timing Role: High-Q, wideband filter amplifier with stable phase response and minimal group delay variation. Use Value: 16 MHz 0.1 dB flatness bandwidth (G = +2) supports precise frequency-selective filtering up to 10 MHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, rail-to-rail amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADA4897-1ARZ | Lower noise (1 nV/√Hz), lower power (3.5 mA), but narrower bandwidth (105 MHz) and no DISABLE/SELECT crossover control. | Better for ultra-low-noise, low-power precision buffers; unsuitable where selectable input crossover or >150 MHz bandwidth is required. | Choose ADA4897-1ARZ when noise dominates over bandwidth and power-down is not needed. |
| LMH6629MA/NOPB | Higher slew rate (1300 V/µs), wider bandwidth (1.5 GHz), but higher supply current (12.5 mA) and no rail-to-rail input. | Preferred for GHz-range RF/IF amplification; incompatible with rail-to-rail input signal sources or low-voltage systems < ±2.5 V. | Choose LMH6629MA/NOPB only for high-frequency (>500 MHz), non-rail-to-rail applications with ample power budget. |
Compared with ADA4897-1ARZ and LMH6629MA/NOPB, the AD8027ARZ uniquely balances 190 MHz bandwidth, rail-to-rail input/output, user-selectable crossover, and sub-7 mA quiescent current - making it the only option among the three for precision, wide-dynamic-range, low-voltage signal conditioning with configurable distortion optimization.
Availability
AD8027ARZ is available at Aetrix Electronics and suitable for professional video signal chains, high-speed data acquisition systems, and low-voltage instrumentation requiring stable component supply across extended temperature and long production lifecycles.
Supply support for AD8027ARZ 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, serving industrial, automotive, communications, and healthcare markets.
The AD8027ARZ belongs to the AD8027/AD8028 family of high-speed, rail-to-rail amplifiers designed specifically for applications demanding wide bandwidth, low distortion, and flexible input-stage configuration in low-voltage systems.
FAQ
What is the maximum supply voltage for AD8027ARZ?
The AD8027ARZ supports a wide operating supply range of 2.7 V to 12 V. Absolute maximum supply voltage is 12.6 V, as specified in the Absolute Maximum Ratings table. Operation above 12.6 V risks permanent damage. For dual-supply use, ±5 V is the most common configuration, delivering optimal bandwidth and distortion performance.
Does AD8027ARZ support rail-to-rail input on single 3 V supply?
Yes, AD8027ARZ supports rail-to-rail input on single 3 V supply, with a common-mode input voltage range of −0.2 V to +3.2 V (RL = 1 kΩ). This allows direct interface with 0–3 V DAC outputs or sensors referenced to ground, maintaining full dynamic range without external level shifting.
How does the DISABLE/SELECT pin affect AD8027ARZ performance?
The DISABLE/SELECT pin on AD8027ARZ serves dual functions: when pulled low, it places the amplifier in power-down mode (quiescent current drops to 370 µA); when left open (tristate), it configures PNP-dominant input operation for widest common-mode range; when pulled high, it selects NPN-dominant operation for improved high-side linearity. Each state directly impacts SFDR and offset behavior.
Can AD8027ARZ drive a 50 Ω load directly?
AD8027ARZ is characterized for 1 kΩ loads but can drive 50 Ω loads with appropriate gain configuration and layout. At G = +1, output swing is reduced and thermal dissipation increases significantly. For sustained 50 Ω driving, use G ≥ +2 with series output resistance (e.g., 45 Ω) to match and limit current - verified in Analog Devices' AN-1024 application note for AD8027.
What is the typical settling time of AD8027ARZ at G = +2?
The AD8027ARZ achieves 35 ns settling time to 0.1% for a 2 V step at G = +2 under ±5 V supply conditions. This value is confirmed in Table 1 of the Rev. E datasheet and remains stable across temperature (−40°C to +125°C) and supply variations, supporting high-throughput sampling in precision data converters.
AD8027ARZ 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:
- Rail-to-Rail
- Slew Rate:
- 100V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 190 MHz
- Current - Input Bias:
- 4 µA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 6.5mA
- Current - Output / Channel:
- 120 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AD8027ARZ FAQ
1.How can I place an order for AD8027ARZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8027ARZ 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 AD8027ARZ reliable?
The price and inventory of AD8027ARZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8027ARZ is usually 5 days.
3.What payment methods are accepted for AD8027ARZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8027ARZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8027ARZ?
AD8027ARZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8027ARZ 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 AD8027ARZ?
For technical support, including AD8027ARZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8027ARZ requirements.
6.How does Aetrix verify that AD8027ARZ is sourced from the original manufacturer or authorized distributors?
All AD8027ARZ 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 AD8027ARZ meets industry standards.
7.What is the process for return or replacement of AD8027ARZ?
All AD8027ARZ units undergo pre-shipment inspection (PSI). If there is an issue with AD8027ARZ, 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 AD8027ARZ part is unused and in its original packaging.
Return procedure for AD8027ARZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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