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Analog Devices Inc. AD8529ARZ-REEL
- Part No.:
- AD8529ARZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8529ARZ-REEL.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,546
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Product details
Overview
AD8529ARZ-REEL from Analog Devices is a dual rail-to-rail output operational amplifier optimized for precision, low-power, single-supply operation across −40°C to +125°C. It delivers 8 MHz gain bandwidth, 2.9 V/μs slew rate, and ≤1.0 mV max input offset voltage at 5 V supply - enabling high-fidelity signal conditioning in space-constrained battery-powered systems such as microphone preamps and sensor interfaces.
For engineers reviewing the AD8529ARZ-REEL datasheet, AD8529ARZ-REEL pinout, AD8529ARZ-REEL application, or AD8529ARZ-REEL equivalent, key selection criteria include rail-to-rail output swing (≤200 mV from rails at 5 mA), low 600–1200 μA supply current per amplifier, unity-gain stability, and SOIC-8 packaging compatible with industrial temperature-grade PCB layouts.
Technical Context
The AD8529ARZ-REEL integrates two matched bipolar-input op amps in a single 8-lead SOIC package, featuring rail-to-rail output stage architecture that sustains full dynamic range down to 2.7 V supply. Its 8 MHz GBP and 60° phase margin ensure stable closed-loop performance in unity-gain and inverting configurations without external compensation.
Input stage design supports common-mode voltage range from 0 V to (V+) − 1 V at 5 V supply, while CMRR exceeds 63 dB over −40°C to +125°C. Output drive capability reaches ±25 mA, supporting direct interface to moderate-capacitance loads (e.g., 100 pF) with <1% overshoot and 1.2 μs settling to 0.01%.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 8 MHz - enables stable unity-gain amplification up to audio and low-speed data acquisition frequencies |
| Slew Rate | 2.9 V/μs - supports clean 1 VPP output at ≥100 kHz without slew-induced distortion |
| Input Offset Voltage | ≤1000 μV max at 25°C - ensures ≤1 mV DC error in precision DC-coupled sensor front-ends |
| Supply Current per Amplifier | 600–1200 μA - allows dual-opamp operation on coin-cell or 2-cell alkaline supplies |
| Rail-to-Rail Output Swing | ≤200 mV from rails at 5 mA load - preserves >95% of supply voltage dynamic range for ADC driver stages |
| Operating Temperature Range | −40°C to +125°C - qualified for under-hood automotive, industrial control, and portable medical devices |
| Input Voltage Noise Density | 10 nV/√Hz at 1 kHz - suitable for low-level transducer signals without dominant noise contribution |
Pinout & Package
AD8529ARZ-REEL is housed in an 8-lead SOIC_N (R-8) package with standard JEDEC MS-012-AA footprint (4.90 mm × 3.90 mm × 1.75 mm). Pin 1 is marked by a notch or dot; device orientation follows industry-standard SOIC conventions.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives external load or feedback network; rail-to-rail capable |
| 2 | −IN A | Inverting input of Amplifier A - accepts feedback or signal inversion configuration |
| 3 | +IN A | Non-inverting input of Amplifier A - connects to reference, sensor, or signal source |
| 4 | V− | Negative supply rail - tied to ground in single-supply operation (2.7 V to 12 V) |
| 5 | +IN B | Non-inverting input of Amplifier B - independent channel for dual-path signal processing |
| 6 | −IN B | Inverting input of Amplifier B - supports differential, inverting, or active filter topologies |
| 7 | OUT B | Amplifier B output - fully independent output stage with same rail-to-rail performance as OUT A |
| 8 | V+ | Positive supply rail - accepts 2.7 V to 12 V single supply or ±1.5 V to ±6 V split supply |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers usable output within 200 mV of supply rails at 5 mA, maximizing ADC input range and dynamic headroom |
| Low quiescent current | 600–1200 μA per amplifier enables dual-channel operation on microampere-budget systems |
| Unity-gain stable | Operates reliably with no external compensation in buffer, follower, or gain-of-one configurations |
| Extended temperature grade | Specified from −40°C to +125°C - eliminates derating concerns in automotive engine compartments or industrial enclosures |
| High PSRR and CMRR | ≥80 dB PSRR and ≥63 dB CMRR minimize supply noise and common-mode interference in noisy environments |
Applications
| Microphone Preamplifier | Sensor Interface |
|---|---|
Use Scenario: Low-noise 10× gain stage for electret condenser microphones in portable phones and wearables. IC Role / Device Role / Timing Role: Dual op amp configured as AC-coupled non-inverting amplifier with DC biasing network. Use Value: 10 nV/√Hz input noise and rail-to-rail output enable >100 dB SNR at 2.7 V supply, meeting PC99 audio compliance. |
Use Scenario: Signal conditioning for resistive bridge sensors (e.g., pressure, load cells) in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Instrumentation amplifier front-end using one AD8529ARZ-REEL channel for differential gain and filtering. Use Value: ≤1 mV offset and 8 MHz bandwidth support sub-0.1% linearity error and fast step response in closed-loop control feedback paths. |
| Active Filter Stage | Voltage Reference Buffer |
Use Scenario: 2nd-order Sallen-Key low-pass filter in audio DAC output stage or anti-aliasing path. IC Role / Device Role / Timing Role: Dual op amp implementing unity-gain filter topology with precise pole placement. Use Value: 8 MHz GBP and 2.9 V/μs slew rate maintain phase accuracy and transient fidelity up to 100 kHz cutoff frequency. |
Use Scenario: Low-drift buffer for precision voltage references (e.g., REF195) driving ADC reference inputs or analog multiplexers. IC Role / Device Role / Timing Role: Unity-gain follower isolating reference from load variations and PCB leakage currents. Use Value: ≤1 mV offset and 600 μA supply current prevent reference loading errors while minimizing power overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP2177ARZ-REEL | Lower offset (25 μV typ), higher supply current (450 μA per amp), 1.3 MHz GBP | Better DC precision but insufficient bandwidth for audio or fast sensor signals | Select when ultra-low offset dominates over speed and power constraints |
| MCP6022-E/SN | CMOS input (1 pA IB), 10 MHz GBP, 2.3 V/μs slew, 1.2 mV offset max | Higher input impedance suits high-Z sources; lower drive strength limits capacitive load handling | Select for high-impedance pH or photodiode sensors where bias current matters more than output drive |
Compared with OP2177ARZ-REEL and MCP6022-E/SN, AD8529ARZ-REEL uniquely balances 8 MHz bandwidth, rail-to-rail output, and sub-1 mV offset at <1.2 mA total supply current - making it optimal for dual-channel, battery-operated signal chains requiring both speed and precision.
Availability
AD8529ARZ-REEL is available at Aetrix Electronics and suitable for microphone preamplifiers, sensor interface modules, and active filter designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD8529ARZ-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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The AD8519/AD8529 product line delivers precision, low-power, rail-to-rail op amps in miniature packages for space- and energy-constrained applications including portable instrumentation and battery-powered sensing nodes.
FAQ
What is the maximum operating supply voltage for AD8529ARZ-REEL?
The AD8529ARZ-REEL supports a maximum supply voltage of ±6 V (or 12 V single-ended) as specified in Absolute Maximum Ratings. Operation beyond this risks permanent damage. For reliable long-term use, Analog Devices recommends staying within the recommended 2.7 V to 12 V single-supply or ±1.5 V to ±6 V dual-supply range stated in the Electrical Characteristics tables.
Does AD8529ARZ-REEL support true rail-to-rail input?
No, AD8529ARZ-REEL features rail-to-rail *output* only. Its input common-mode voltage range extends from 0 V to (V+) − 1 V at 5 V supply - meaning it does not accept signals at the positive rail. Input stage is bipolar, not CMOS or JFET, so input bias current remains in the hundreds of nA rather than pA.
Can AD8529ARZ-REEL drive capacitive loads without instability?
AD8529ARZ-REEL maintains stability with ≤100 pF capacitive loads at unity gain, as verified in Figure 13 of the datasheet. For larger loads (e.g., >200 pF), isolation resistance (e.g., 10–50 Ω in series with output) or gain ≥10 is recommended to preserve phase margin and prevent peaking or oscillation.
Is AD8529ARZ-REEL pin-compatible with other dual op amps in SOIC-8?
AD8529ARZ-REEL uses the standard dual op amp pinout (OUT A, −IN A, +IN A, V−, +IN B, −IN B, OUT B, V+), matching industry convention for SOIC-8 dual amplifiers. However, electrical characteristics (e.g., bandwidth, offset, supply current) differ significantly from alternatives like LM358 or TL072 - direct replacement requires validation of signal chain performance.
What is the typical input offset voltage drift over temperature for AD8529ARZ-REEL?
The AD8529ARZ-REEL exhibits a typical input offset voltage drift of 2 μV/°C, as documented in Table 1 under "Offset Voltage Drift ∆VOS/∆T". This low drift supports stable DC accuracy in applications exposed to wide ambient temperature swings, such as automotive cabin sensors or outdoor industrial monitors.
AD8529ARZ-REEL 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:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 2.9V/µs
- Gain Bandwidth Product:
- 8 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 300 nA
- Voltage - Input Offset:
- 600 µV
- Current - Supply:
- 600µA (x2 Channels)
- Current - Output / Channel:
- 25 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
AD8529ARZ-REEL FAQ
1.How can I place an order for AD8529ARZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8529ARZ-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 AD8529ARZ-REEL reliable?
The price and inventory of AD8529ARZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8529ARZ-REEL is usually 5 days.
3.What payment methods are accepted for AD8529ARZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8529ARZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8529ARZ-REEL?
AD8529ARZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8529ARZ-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 AD8529ARZ-REEL?
For technical support, including AD8529ARZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8529ARZ-REEL requirements.
6.How does Aetrix verify that AD8529ARZ-REEL is sourced from the original manufacturer or authorized distributors?
All AD8529ARZ-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 AD8529ARZ-REEL meets industry standards.
7.What is the process for return or replacement of AD8529ARZ-REEL?
All AD8529ARZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD8529ARZ-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 AD8529ARZ-REEL part is unused and in its original packaging.
Return procedure for AD8529ARZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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