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Analog Devices Inc. AD8510AR
- Part No.:
- AD8510AR
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8510AR.pdf
- Description:
- IC OPAMP JFET 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,701
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Product details
Overview
AD8510AR from Analog Devices is a single-channel, precision JFET-input operational amplifier optimized for high-impedance sensor interfaces and low-noise signal conditioning. It delivers 400 µV max offset voltage, 8 nV/√Hz voltage noise at 1 kHz, 20 V/µs slew rate, and 0.1% settling in 500 ns - enabling accurate photodiode amplification and precision current measurement across −40°C to +125°C.
For engineers reviewing the AD8510AR datasheet, AD8510AR pinout, AD8510AR application, or AD8510AR equivalent, key selection criteria include input bias current (25 pA typ @ ±15 V), unity-gain stability with capacitive loads up to 1000 pF, absence of output phase reversal, and dual-supply operation from ±5 V to ±15 V.
Technical Context
The AD8510AR employs a JFET input stage delivering ultra-low input bias current (25 pA typ) and low input current noise, critical for high-source-impedance applications like photodiode and piezoelectric sensor front-ends. Its fast settling (500 ns to 0.1%) and 20 V/µs slew rate support high-speed precision buffering after DACs or in multipole filter stages.
Unlike legacy JFET op amps, the AD8510AR avoids output phase reversal when inputs exceed common-mode range and maintains stability driving ≥500 pF capacitive loads without external compensation - verified across ±5 V and ±15 V supplies with >44.5° phase margin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage (B Grade) | 0.4 mV max at 25°C - ensures ≤1 LSB error in 12-bit systems over full temperature range. |
| Input Bias Current | 25 pA typical at ±15 V - enables use with >1 GΩ source impedances without significant DC error. |
| Voltage Noise Density | 8 nV/√Hz at 1 kHz - supports low-noise amplification of microvolt-level sensor signals. |
| Slew Rate | 20 V/µs - allows clean amplification of fast transients while maintaining linearity in audio and instrumentation paths. |
| Gain Bandwidth Product | 8 MHz - provides stable gain ≥10 at 500 kHz for anti-aliasing and active filter designs. |
| Settling Time | 500 ns to 0.1% (0 V → 4 V step) - matches sub-1 µs DAC output settling for precision data acquisition. |
| Supply Range | ±5 V to ±15 V - supports both low-power portable instrumentation and high-dynamic-range industrial test equipment. |
Pinout & Package
AD8510AR is packaged in an 8-lead SOIC_N (R suffix), with exposed pad not connected. Pin functions are validated per Analog Devices Rev. H datasheet Figures 1–2 and Table 1.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NULL | No-connect terminal; must be left floating or tied to ground per layout best practice. |
| 2 | −IN | Inverting input; high-impedance JFET node with 12.5 pF differential capacitance. |
| 3 | +IN | Non-inverting input; matched to −IN for optimal CMRR (>100 dB at DC). |
| 4 | V− | Negative supply rail; supports rail-to-rail output swing within 1.2 V of rails at ±15 V. |
| 5 | NC | No-connect; internal die bond wire unused - must remain unconnected. |
| 6 | V+ | Positive supply rail; PSRR >130 dB ensures immunity to supply ripple in sensitive analog chains. |
| 7 | OUT | Amplifier output; capable of ±54 mA drive into 600 Ω load with <0.0005% THD+N. |
| 8 | NULL | No-connect terminal; electrically isolated from internal circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal | Guaranteed non-inverting behavior even when inputs exceed ±15 V supply rails - eliminates system lockup risk in overvoltage conditions. |
| Capacitive load drive | Stable with ≥1000 pF in unity gain; enables direct connection to ADC input caps or long PCB traces without isolation resistors. |
| Low TCVOS | 1 µV/°C typical drift - reduces calibration burden in wide-temperature industrial sensors and medical devices. |
| Fast overload recovery | ≤200 ns recovery from saturation - preserves signal integrity during transient events in precision rectifiers and peak detectors. |
| High CMRR & PSRR | 100 dB CMRR and 130 dB PSRR at DC - rejects common-mode interference and supply noise in noisy industrial environments. |
Applications
| Photodiode Amplification | Precision Current Measurement |
|---|---|
|
Use Scenario: Converting nanoamp-level photocurrent from silicon or InGaAs photodiodes into measurable voltage with minimal dark-current error. IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) with ultra-low input bias current and low voltage noise to maximize SNR in optical sensing. Use Value: Enables detection of <100 fA photocurrents using 1 GΩ feedback resistors while holding total input-referred noise below 300 nV RMS (0.1–10 Hz). |
Use Scenario: Measuring shunt resistor voltage drops in battery management, power supply monitoring, or motor control with <0.1% accuracy. IC Role / Device Role / Timing Role: Precision difference amplifier front-end with low offset drift and high CMRR to reject common-mode voltage on high-side shunts. Use Value: Maintains ≤2 µV offset drift over −40°C to +125°C, ensuring <0.01% gain error in 12-bit current monitoring systems without recalibration. |
| Medical Instrumentation | Audio Signal Conditioning |
|
Use Scenario: Front-end amplification of ECG, EEG, or EMG bio-potential signals requiring high input impedance and low 1/f noise. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with JFET inputs to avoid loading fragile electrode interfaces. Use Value: 2.4 µV p-p (0.1–10 Hz) input noise and 0.1% settling in 500 ns enable accurate capture of microvolt-level cardiac waveforms without distortion. |
Use Scenario: Low-distortion preamplification and filtering of microphone or line-level audio before ADC conversion. IC Role / Device Role / Timing Role: Unity-gain buffer and active filter stage with <0.0005% THD+N and 20 V/µs slew rate. Use Value: Preserves harmonic integrity up to 20 kHz while driving 10 kΩ loads - suitable for studio-grade audio signal chains and hearing aid front-ends. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision JFET op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA140AIDR | Lower input bias current (0.5 pA typ), higher GBP (11 MHz), but higher voltage noise (11 nV/√Hz at 1 kHz). | Better for femtoamp-level electrometer circuits; less optimal for low-noise photodiode amps where voltage noise dominates. | Select OPA140AIDR when input bias current is the primary constraint and voltage noise budget allows ≥11 nV/√Hz. |
| LT1028CS8#PBF | Higher slew rate (25 V/µs), lower voltage noise (0.95 nV/√Hz), but higher input bias current (25 nA typ) and no phase reversal guarantee. | Superior for ultra-low-noise preamps with low-impedance sources; unsuitable for high-Z sensors due to bias current-induced errors. | Choose LT1028CS8#PBF only in low-source-impedance, high-bandwidth applications where bias current is irrelevant. |
Compared with OPA140AIDR and LT1028CS8#PBF, AD8510AR uniquely balances ultra-low input bias current (25 pA), low voltage noise (8 nV/√Hz), guaranteed no-phase-reversal operation, and robust capacitive load drive - making it the optimal choice for high-impedance, wide-temperature, precision analog front-ends where all three parameters matter simultaneously.
Availability
AD8510AR is available at Aetrix Electronics and suitable for photodiode amplification, precision current measurement, and medical instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD8510AR 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 AD8510AR belongs to Analog Devices' precision JFET op amp family, designed specifically for high-impedance, low-noise, wide-temperature applications including sensor signal conditioning, medical instrumentation, and test equipment.
FAQ
What is the maximum capacitive load the AD8510AR can drive without oscillation?
The AD8510AR is unconditionally stable and drives up to 1000 pF in unity-gain configuration without oscillation, as confirmed in the Rev. H datasheet Figure 46–47 and General Application Information section. For loads >500 pF, a snubber network (e.g., 100 Ω + 1 nF) is recommended to suppress overshoot - a design detail validated across ±5 V and ±15 V supplies.
Does the AD8510AR exhibit output phase reversal when input voltages exceed the supply rails?
No - the AD8510AR does not suffer from output phase reversal, even when input voltages exceed the ±15 V supply rails. This behavior is explicitly guaranteed in the General Description and Output Phase Reversal sections of the Rev. H datasheet, distinguishing it from many legacy JFET op amps and preventing system lockups in overvoltage conditions.
What is the typical input bias current of the AD8510AR at ±15 V supply?
The AD8510AR has a typical input bias current of 25 pA at ±15 V and 25°C, with a maximum of 80 pA over the full −40°C to +125°C operating range (per Table 2, Electrical Characteristics). This ultra-low value enables reliable operation with source impedances exceeding 1 GΩ in photodiode and piezoelectric sensor interfaces.
Can the AD8510AR operate from a single +10 V supply?
No - the AD8510AR is specified exclusively for dual-supply operation from ±5 V to ±15 V. It is not characterized or guaranteed for single-supply use. The input common-mode range extends to −2.0 V to +2.5 V at ±5 V and −13.5 V to +13.0 V at ±15 V, confirming symmetrical rail requirements per Table 1 and Table 2.
What grade options are available for the AD8510AR, and how do they differ in offset voltage?
The AD8510AR is offered in A and B grades. The B grade guarantees a maximum offset voltage of 0.4 mV at 25°C (0.8 mV over −40°C to +125°C), while the A grade specifies 0.9 mV max at 25°C (1.8 mV over temperature). Both grades share identical pinout, package, noise, speed, and stability characteristics - only DC precision differs.
AD8510AR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- J-FET
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 20V/µs
- Gain Bandwidth Product:
- 8 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 25 pA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 2.2mA
- Current - Output / Channel:
- 70 mA
- Voltage - Supply Span (Min):
- 9 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AD8510AR FAQ
1.How can I place an order for AD8510AR through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8510AR 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 AD8510AR reliable?
The price and inventory of AD8510AR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8510AR is usually 5 days.
3.What payment methods are accepted for AD8510AR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8510AR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8510AR?
AD8510AR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8510AR 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 AD8510AR?
For technical support, including AD8510AR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8510AR requirements.
6.How does Aetrix verify that AD8510AR is sourced from the original manufacturer or authorized distributors?
All AD8510AR 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 AD8510AR meets industry standards.
7.What is the process for return or replacement of AD8510AR?
All AD8510AR units undergo pre-shipment inspection (PSI). If there is an issue with AD8510AR, 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 AD8510AR part is unused and in its original packaging.
Return procedure for AD8510AR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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