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Analog Devices Inc. AD8539ARZ-REEL
- Part No.:
- AD8539ARZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8539ARZ-REEL.pdf
- Description:
- IC OPAMP ZERO-DRIFT 2 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,435
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Product details
Overview
AD8539ARZ-REEL from Analog Devices is a dual-channel, precision auto-zero operational amplifier optimized for low-offset, low-drift, and ultra-low-power operation in single-supply systems. It delivers 15 µV max input offset voltage, 0.03 µV/°C offset drift, 210 µA supply current per amplifier at 5 V, and operates from 2.7 V to 5.5 V. It is used in high-accuracy sensor interfaces and battery-powered instrumentation requiring stable DC performance over temperature.
For engineers reviewing the AD8539ARZ-REEL datasheet, AD8539ARZ-REEL pinout, AD8539ARZ-REEL application, or AD8539ARZ-REEL equivalent, this page provides verified specifications, SOIC_N package details, automotive-grade temperature range (−40°C to +125°C), and real-world design context for precision analog signal conditioning.
Technical Context
The AD8539ARZ-REEL implements auto-zeroing architecture to continuously correct input offset and drift, enabling sub-µV-level DC accuracy without external trimming. Its dual op-amp structure shares no internal coupling-channel separation exceeds −140 dB at 1 kHz-making it suitable for independent signal paths in multi-sensor systems.
It features rail-to-rail output swing with 4.95 V high-level and 20 mV low-level output voltage (RL = 10 kΩ, VS = 5 V), supports unity-gain stability with 20 pF load, and maintains 110 dB minimum CMRR across −40°C to +125°C. The device is fully specified for single-supply operation and exhibits no phase reversal under common-mode overvoltage conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 15 µV maximum at 25°C; ensures ≤30 µV error across full −40°C to +125°C range-critical for <10 ppm measurement accuracy. |
| Offset Drift | 0.03 µV/°C typical; contributes <0.004 µV/°C system-level drift after calibration-enables long-term stability in unattended sensors. |
| Supply Current | 210 µA per amplifier at 5 V; enables dual-channel precision amplification in sub-500 µA total system power budgets. |
| CMRR | 115 dB minimum at 25°C, 100 dB minimum over full temperature range; rejects >100,000:1 common-mode interference in noisy industrial environments. |
| Gain Bandwidth Product | 430 kHz; supports stable closed-loop gain up to 100× at DC–4 kHz-sufficient for anti-aliasing and sensor signal bandwidths. |
| Input Bias Current | 15 pA typical at 25°C; minimizes voltage error across high-impedance sources (e.g., thermistors, pH electrodes) above 100 MΩ. |
| Operating Temperature | −40°C to +125°C; qualified for extended industrial and automotive under-hood applications without derating. |
Pinout & Package
AD8539ARZ-REEL is housed in an 8-lead narrow-body SOIC (R-8) package, compliant with JEDEC MS-012-AA, with 1.27 mm lead pitch and 5.00 mm × 3.99 mm body dimensions.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output; rail-to-rail capable, drives loads ≥10 kΩ with <25 mV saturation at 5 V supply. |
| 2 | −IN A | Inverting input of Amplifier A; high-impedance node (25 pA bias current) for feedback network connection. |
| 3 | +IN A | Non-inverting input of Amplifier A; accepts common-mode voltage from 0.2 V to 4.8 V at 5 V supply. |
| 4 | V− | Negative supply rail; tied to ground in single-supply configurations; must be decoupled with 0.1 µF ceramic capacitor. |
| 5 | +IN B | Non-inverting input of Amplifier B; electrically isolated from Channel A-no crosstalk below −140 dB at 1 kHz. |
| 6 | −IN B | Inverting input of Amplifier B; identical electrical characteristics to Pin 2, supporting independent dual-channel design. |
| 7 | OUT B | Amplifier B output; functionally identical to Pin 1, enabling simultaneous dual-sensor conditioning on one die. |
| 8 | V+ | Positive supply rail; operates from 2.7 V to 5.5 V; PSRR ≥105 dB suppresses supply noise in battery-powered systems. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-zero architecture | Eliminates need for manual offset trimming or chopper-stabilized layout; reduces PCB area and BOM count in precision front-ends. |
| Rail-to-rail output | Delivers 4.95 V high and 20 mV low output swing into 10 kΩ at 5 V supply-maximizes dynamic range in single-supply data acquisition. |
| No phase reversal | Remains stable when input common-mode exceeds supply rails; prevents latch-up in sensor fault conditions (e.g., thermocouple open-circuit). |
| High PSRR/CMRR | 105 dB PSRR and 115 dB CMRR minimize sensitivity to shared supply noise and EMI in compact mixed-signal PCBs. |
| Low 0.1–10 Hz noise | 1.2 µV p-p input-referred noise enables resolution of sub-µV DC signals in weigh scales and medical biosensors. |
Applications
| Electronic Scales | Temperature Measurement |
|---|---|
|
Use Scenario: Precision weighing in portable lab balances using strain gauge bridges with mV-level outputs. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end: one channel for bridge excitation regulation, one for differential signal amplification. Use Value: 15 µV offset and 0.03 µV/°C drift ensure <0.005% linearity error over temperature-meeting OIML R76 Class III requirements. |
Use Scenario: High-resolution RTD or thermistor readout in HVAC controllers and industrial process monitors. IC Role / Device Role / Timing Role: Low-noise, low-drift signal conditioner converting resistance changes to precise voltage outputs for ADC digitization. Use Value: 15 pA input bias current avoids self-heating errors in 10 kΩ NTC thermistors; 1.2 µV p-p 0.1–10 Hz noise enables 0.01°C resolution. |
| Battery-Powered Instrumentation | Sensor Interfaces |
|
Use Scenario: Handheld multimeters and portable gas analyzers requiring multi-decade dynamic range on coin-cell power. IC Role / Device Role / Timing Role: Dual op-amp core for auto-ranging gain stages and reference buffer-reducing active component count. Use Value: 210 µA per amplifier enables full dual-channel operation within 500 µA system budget-extending battery life beyond 1 year at 1 sample/sec. |
Use Scenario: Signal conditioning for MEMS accelerometers, pressure transducers, and optical sensors in IoT edge nodes. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier with integrated ESD protection (HBM 2 kV) for direct sensor interfacing. Use Value: −40°C to +125°C operation and 100 dB CMRR allow deployment in unregulated enclosures; SOIC package supports automated assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2333AIDR | Higher 0.1–10 Hz noise (1.6 µV p-p), lower 170 µA supply current, same SOIC-8 package. | Optimized for ultra-low-power microcontroller-based sensors; less suitable for high-precision DC metrology. | Select when sub-200 µA total supply budget dominates over offset drift requirements. |
| LTC2051HS8#PBF | Lower 0.1–10 Hz noise (0.55 µV p-p), higher 475 µA supply current, SOIC-8 package. | Better for nanovolt-level measurements (e.g., thermocouples); not qualified for automotive temperature range. | Select when absolute lowest noise is critical and power is secondary; verify −40°C to +125°C operation separately. |
Compared with OP2333AIDR and LTC2051HS8#PBF, AD8539ARZ-REEL uniquely balances ultra-low drift (0.03 µV/°C), automotive-grade temperature range, and moderate power (210 µA), making it optimal for cost-sensitive, high-reliability industrial sensor nodes where long-term calibration stability is mandatory.
Availability
AD8539ARZ-REEL is available at Aetrix Electronics and suitable for electronic scales, temperature measurement systems, and battery-powered instrumentation requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for AD8539ARZ-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 Wilmington, MA.
The AD8538/AD8539 product line was designed specifically for precision DC signal conditioning in resource-constrained, wide-temperature environments-including automotive, industrial, and portable instrumentation applications.
FAQ
What is the maximum operating supply voltage for AD8539ARZ-REEL?
The AD8539ARZ-REEL has an absolute maximum supply voltage rating of +6 V, but its recommended operating range is 2.7 V to 5.5 V. Operation at 5.5 V is fully characterized per datasheet Table 3 and Table 4, delivering 210 µA supply current and maintaining 15 µV max offset. Exceeding 5.5 V risks parametric shift or reliability degradation.
Does AD8539ARZ-REEL support true rail-to-rail input operation?
No, AD8539ARZ-REEL does not support rail-to-rail input. Its input common-mode voltage range is specified as 0.2 V to 4.8 V at 5 V supply (−40°C to +125°C). Inputs below 0.2 V or above 4.8 V may cause increased offset or phase reversal-though the device is explicitly characterized to avoid phase reversal even under overvoltage.
Can AD8539ARZ-REEL drive capacitive loads directly?
Yes, AD8539ARZ-REEL is unity-gain stable with up to 20 pF capacitive load, as confirmed in Figure 42 and Figure 43 of the datasheet. For loads >20 pF, external isolation resistor (e.g., 10–100 Ω) between output and capacitance is required to maintain phase margin >65° and prevent peaking or oscillation.
Is AD8539ARZ-REEL qualified for automotive applications?
AD8539ARZ-REEL itself is not the automotive-grade variant; the automotive-qualified part is AD8539ARZ-W (or AD8539ARMZ-W for MSOP). AD8539ARZ-REEL is rated for −40°C to +125°C and meets all electrical specs in that range, but lacks the controlled manufacturing flow and AEC-Q200 stress testing of the W-suffix variants.
What is the thermal resistance (θJA) of AD8539ARZ-REEL in SOIC_N package?
The AD8539ARZ-REEL in 8-lead SOIC_N (R-8) package has a junction-to-ambient thermal resistance (θJA) of 125°C/W, as specified in Table 6 of the datasheet. This value assumes worst-case PCB mounting-designers should use thermal vias and copper pour to reduce effective θJA in high-power-density layouts.
AD8539ARZ-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:
- Zero-Drift
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 0.4V/µs
- Gain Bandwidth Product:
- 430 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 15 pA
- Voltage - Input Offset:
- 5 µV
- Current - Supply:
- 170µA (x2 Channels)
- Current - Output / Channel:
- 25 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AD8539ARZ-REEL FAQ
1.How can I place an order for AD8539ARZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8539ARZ-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 AD8539ARZ-REEL reliable?
The price and inventory of AD8539ARZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8539ARZ-REEL is usually 5 days.
3.What payment methods are accepted for AD8539ARZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8539ARZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8539ARZ-REEL?
AD8539ARZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8539ARZ-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 AD8539ARZ-REEL?
For technical support, including AD8539ARZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8539ARZ-REEL requirements.
6.How does Aetrix verify that AD8539ARZ-REEL is sourced from the original manufacturer or authorized distributors?
All AD8539ARZ-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 AD8539ARZ-REEL meets industry standards.
7.What is the process for return or replacement of AD8539ARZ-REEL?
All AD8539ARZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD8539ARZ-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 AD8539ARZ-REEL part is unused and in its original packaging.
Return procedure for AD8539ARZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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