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Analog Devices Inc. AD8031ARTZ-REEL7
- Part No.:
- AD8031ARTZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AD8031ARTZ-REEL7.pdf
- Description:
- IC OPAMP VFB 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:22,405
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Product details
Overview
AD8031ARTZ-REEL7 from Analog Devices is a single-channel, rail-to-rail input/output voltage feedback operational amplifier optimized for high-speed, low-power applications. It delivers 80 MHz −3 dB bandwidth (G = +1), 30 V/μs slew rate, and 125 ns settling time to 0.1% while consuming only 800 μA quiescent current per amplifier at +5 V supply. It operates from +2.7 V to +12 V single supply and supports battery-powered instrumentation, A/D converter buffering, and active filter stages.
For engineers reviewing the AD8031ARTZ-REEL7 datasheet, AD8031ARTZ-REEL7 pinout, AD8031ARTZ-REEL7 application, or AD8031ARTZ-REEL7 equivalent, this page provides verified technical context, validated pin functions, real-world application mappings, and confirmed alternative options for signal conditioning in space-constrained, low-voltage systems.
Technical Context
The AD8031ARTZ-REEL7 employs an XFCB bipolar process with dual-input-stage architecture: a PNP pair active for common-mode voltages up to 1.1 V below VCC, and an NPN pair engaged near the positive rail to enable rail-to-rail input operation without phase reversal up to 500 mV beyond supplies. Its output stage uses complementary emitter-follower transistors with ~25 Ω effective collector resistance, enabling 20 mV rail-to-rail swing under light load.
Dynamic performance is supply-voltage scalable: bandwidth remains 80 MHz (typ) across +2.7 V, +5 V, and ±5 V operation; slew rate increases from 30 V/μs (+5 V) to 35 V/μs (±5 V); and THD reaches −86 dBc at 100 kHz (4.6 Vp-p). Input voltage noise is 15 nV/√Hz at 1 kHz; input current noise is 0.4 pA/√Hz at 100 kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| −3 dB Bandwidth | 80 MHz (G = +1): enables faithful amplification of signals up to video baseband and fast control loop error signals. |
| Slew Rate | 30 V/μs (+5 V): supports clean 2 V step response in ≤67 ns, critical for pulse shaping and DAC output buffering. |
| Settling Time | 125 ns to 0.1%: ensures accurate sampling in 8–10-bit ADC interfaces with ≥1 MSPS throughput. |
| Supply Current | 800 μA per amplifier (+5 V): allows integration into multi-channel, battery-operated systems with <4 mW total dissipation. |
| Input Voltage Range | −0.5 V to +5.5 V (+5 V supply): accepts inputs 200 mV beyond rails, simplifying level-shifting in single-supply sensor front-ends. |
| Output Swing | Within 20 mV of either rail (RL = 10 kΩ): maximizes dynamic range for 12-bit+ data acquisition with minimal headroom loss. |
| Total Harmonic Distortion | −86 dBc @ 100 kHz, 4.6 Vp-p: meets SNR > 98 dB requirements for precision analog signal chains. |
Pinout & Package
AD8031ARTZ-REEL7 is packaged in a 5-lead SOT-23 (RJ-5) surface-mount package with exposed pad for thermal enhancement. Pin 1 is marked by a dot; pin numbering follows standard SOT-23 convention (counterclockwise from mark).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT (Pin 1) | Amplifier output | Delivers rail-to-rail voltage with 15 mA drive capability; connects directly to ADC input or filter stage. |
| +IN (Pin 3) | Non-inverting input | Accepts signals from 0.2 V below to 0.2 V above supply rails; high-impedance (280 kΩ differential, 40 MΩ common-mode). |
| –VS (Pin 2) | Negative supply / ground reference | Connects to system ground or negative rail; internal biasing requires stable low-impedance return path. |
| +VS (Pin 5) | Positive supply | Accepts +2.7 V to +12 V; decoupling capacitor (0.1 μF ceramic) required within 5 mm for stability. |
| –IN (Pin 4) | Inverting input | Used in closed-loop configurations (e.g., gain-setting resistors); same CMVR and impedance as +IN. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full-scale signal handling on +2.7 V supply without level-shifting circuitry or dual supplies. |
| No phase reversal up to 500 mV beyond rails | Prevents catastrophic output glitches during overvoltage transients in sensor or multiplexer interfaces. |
| 80 MHz bandwidth at 800 μA supply current | Delivers video-rate or high-speed control loop performance with <1/10 the power of legacy op-amps. |
| 15 nV/√Hz input voltage noise | Supports low-noise amplification of microvolt-level sensor outputs without degrading system SNR. |
| Specified from −40°C to +85°C | Validates stable DC offset (±1.5 mV max), gain, and bandwidth across industrial temperature range. |
Applications
| Portable Oscilloscope Front-End | A/D Converter Buffer |
|---|---|
Use Scenario: Signal conditioning for 10-bit, 1 MSPS handheld oscilloscope with ±2.5 V input range and single +3.3 V supply. IC Role / Device Role / Timing Role: Non-inverting unity-gain buffer isolating probe input from ADC sample-and-hold capacitance. Use Value: 125 ns settling ensures <0.1% error before next sample; rail-to-rail output drives ADC input fully to 0–3.3 V range. |
Use Scenario: Driving SAR ADC input in battery-powered data logger with 12-bit resolution and 200 kSPS sampling. IC Role / Device Role / Timing Role: Low-distortion, fast-settling buffer between precision voltage reference and ADC input. Use Value: −86 dBc THD at 100 kHz preserves ENOB > 11.5 bits; 800 μA current extends battery life vs. higher-power alternatives. |
| Single-Supply Active Filter | High-Speed Line Driver |
Use Scenario: 2nd-order biquad band-pass filter (center = 1 MHz, Q = 5) in portable spectrum analyzer using +5 V supply. IC Role / Device Role / Timing Role: Gain stage implementing frequency-selective transfer function with minimal phase distortion. Use Value: 80 MHz bandwidth ensures flat group delay up to 10× center frequency; low input capacitance (1.6 pF) minimizes filter component sensitivity. |
Use Scenario: Driving 50 Ω coaxial cable from FPGA DAC output in test equipment with 0–2 V signal range. IC Role / Device Role / Timing Role: High-current, low-output-impedance driver maintaining signal integrity at 10 MHz fundamental. Use Value: 15 mA output current sustains 2 Vp-p into 50 Ω; 30 V/μs slew rate prevents edge rounding on 10 ns rise-time signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, low-power op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6612MMX/NOPB | Higher supply current (1.1 mA), wider bandwidth (130 MHz), but no rail-to-rail input; input CMVR limited to (V−) + 1.2 V to (V+) − 1.2 V. | Preferred where speed >80 MHz is mandatory and input signals stay within 1.2 V of rails; unsuitable for true single-supply sensor interfacing. | Select LMH6612MMX/NOPB when bandwidth >100 MHz is required and rail-to-rail input is not needed. |
| ADA4807-1ARMZ-R7 | Lower noise (1.1 nV/√Hz), lower distortion (−105 dBc @ 100 kHz), but higher quiescent current (1.2 mA) and narrower bandwidth (180 MHz small-signal, but 100 MHz G=+2). | Better for ultra-low-noise precision applications (e.g., medical EEG front-end); less optimal for battery life-critical designs. | Select ADA4807-1ARMZ-R7 when sub-2 nV/√Hz noise and <−100 dBc THD are required, and power budget allows >1 mA. |
Compared with AD8031ARTZ-REEL7, LMH6612MMX/NOPB trades rail-to-rail input for extra bandwidth and higher drive, while ADA4807-1ARMZ-R7 prioritizes noise and distortion over power efficiency-making AD8031ARTZ-REEL7 the optimal balance for cost-sensitive, battery-powered instrumentation requiring true single-supply operation.
Availability
AD8031ARTZ-REEL7 is available at Aetrix Electronics and suitable for portable test instruments, A/D buffers, and active filters requiring stable component supply, guaranteed traceability, and long-term industrial temperature-grade availability.
Supply support for AD8031ARTZ-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 AD8031 forms part of Analog Devices' high-speed, low-power op-amp product line designed specifically for battery-operated instrumentation, portable medical devices, and space-constrained industrial signal chains where bandwidth, precision, and energy efficiency must coexist.
FAQ
What supply voltage range does the AD8031ARTZ-REEL7 support?
The AD8031ARTZ-REEL7 operates from +2.7 V to +12 V single supply or ±1.35 V to ±6 V dual supply. It is fully specified at +2.7 V, +5 V, and ±5 V, with guaranteed 80 MHz bandwidth and 30 V/μs slew rate across all three conditions. The absolute maximum supply rating is 12.6 V, and operation outside the specified range may compromise parametric performance or reliability.
Does the AD8031ARTZ-REEL7 have rail-to-rail input capability?
Yes, the AD8031ARTZ-REEL7 features true rail-to-rail input operation: its input common-mode voltage range extends from −0.2 V to +2.9 V on +2.7 V supply, −0.2 V to +5.2 V on +5 V supply, and −5.2 V to +5.2 V on ±5 V supply-exceeding both rails by up to 200 mV. This eliminates the need for external level-shifting in single-supply sensor interfaces.
What is the typical output voltage swing for the AD8031ARTZ-REEL7?
On a +5 V supply with RL = 10 kΩ, the AD8031ARTZ-REEL7 delivers an output swing from 0.02 V to 4.98 V-within 20 mV of each rail. With RL = 1 kΩ, swing reduces to 0.1 V to 4.9 V due to output stage saturation. This rail-to-rail behavior maximizes dynamic range for ADC drivers and other precision analog stages.
Can the AD8031ARTZ-REEL7 drive capacitive loads?
The AD8031ARTZ-REEL7 is stable driving up to 15 pF capacitive load in G = +2 configuration, as verified in Figure 46 of the datasheet. For larger loads (e.g., ADC input capacitance >15 pF), an isolation resistor (typically 10–50 Ω) between amplifier output and load is recommended to maintain phase margin and prevent peaking or oscillation.
What is the input offset voltage specification for the AD8031ARTZ-REEL7?
The AD8031ARTZ-REEL7 is an AD8031A-grade device with maximum input offset voltage of ±1.5 mV over the full industrial temperature range (−40°C to +85°C). At 25°C, the typical offset is ±0.5 mV, and distribution data (Figure 8) shows >95% of units fall within ±1 mV, supporting precision DC-coupled applications without external trimming.
AD8031ARTZ-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 35V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 80 MHz
- Current - Input Bias:
- 450 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 900µA
- Current - Output / Channel:
- 15 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
AD8031ARTZ-REEL7 FAQ
1.How can I place an order for AD8031ARTZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8031ARTZ-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 AD8031ARTZ-REEL7 reliable?
The price and inventory of AD8031ARTZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8031ARTZ-REEL7 is usually 5 days.
3.What payment methods are accepted for AD8031ARTZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8031ARTZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8031ARTZ-REEL7?
AD8031ARTZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8031ARTZ-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 AD8031ARTZ-REEL7?
For technical support, including AD8031ARTZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8031ARTZ-REEL7 requirements.
6.How does Aetrix verify that AD8031ARTZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All AD8031ARTZ-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 AD8031ARTZ-REEL7 meets industry standards.
7.What is the process for return or replacement of AD8031ARTZ-REEL7?
All AD8031ARTZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD8031ARTZ-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 AD8031ARTZ-REEL7 part is unused and in its original packaging.
Return procedure for AD8031ARTZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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