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HomeProductsIntegrated Circuits (ICs)Linear - Amplifiers - Instrumentation, OP Amps, Buffer AmpsAD8512TRZ-EP-R7
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AD8512TRZ-EP-R7 - Analog Devices Inc.

Manufacturer Part Number
AD8512TRZ-EP-R7
Manufacturer
Analog Devices, Inc.
Allelco Part Number
98D-AD8512TRZ-EP-R7
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
36,710 pcs available, New & Original
Parts Description
IC OPAMP JFET 2 CIRCUIT 8SOIC
Package
8-SOIC
Data sheet
AD8512TRZ-EP-R7.pdf

Other Related Documents

Tape and Reel Packaging.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 36710
  • Unit Price: $4.535
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $4.535 $4.54
200+ $1.755 $351.00
500+ $1.694 $847.00
1000+ $1.664 $1,664.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

AD8512TRZ-EP-R7 Tech Specifications
Analog Devices Inc. - AD8512TRZ-EP-R7 technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. - AD8512TRZ-EP-R7

Product Attribute Attribute Value
Manufacturer Analog Devices, Inc.
Voltage - Supply Span (Min) 10 V
Voltage - Supply Span (Max) 30 V
Voltage - Input Offset 100 µV
Supplier Device Package 8-SOIC
Slew Rate 20V/µs
Series -
Package / Case 8-SOIC (0.154", 3.90mm Width)
Package Tape & Reel (TR)
Output Type -
Product Attribute Attribute Value
Operating Temperature -55°C ~ 125°C
Number of Circuits 2
Mounting Type Surface Mount
Gain Bandwidth Product 8 MHz
Current - Supply 2.2mA (x2 Channels)
Current - Output / Channel 70 mA
Current - Input Bias 21 pA
Base Product Number AD8512
Amplifier Type J-FET

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99

Frequently Asked Questions(FAQ)

How does the AD8512TRZ-EP-R7's input bias current of 21 pA influence precision measurement circuit design when interfacing with high-impedance sensors, and what are the practical implications for gain accuracy in low-noise applications?
The AD8512TRZ-EP-R7 features an exceptionally low input bias current of 21 pA, which minimizes loading effects on high-impedance sensor interfaces such as piezoelectric transducers or capacitive sensors. This characteristic significantly reduces offset errors in high-gain amplifier stages, particularly in transimpedance configurations where even small leakage currents can distort output voltage. For example, in a 1 GΩ feedback resistor network, this bias current contributes less than 0.02 µV of offset error—critical for nanovolt-level signal conditioning. However, designers must still consider parallel capacitance at the input to avoid bandwidth limitations, as the combination of low bias and capacitive charge injection can lead to peaking or instability if not properly compensated.
In what scenarios would the AD8512TRZ-EP-R7 be preferred over bipolar-input op-amps like the THS4222DR, and how do their respective slew rates and supply ranges affect system-level trade-offs in industrial control environments?
The AD8512TRZ-EP-R7 is favored over devices like the THS4222DR in applications requiring ultralow input current and moderate-speed performance within a wide single-supply range (10 V to 30 V). While the THS4222DR offers higher slew rate (typically 100 V/µs), the AD8512’s J-FET input stage provides superior dc precision and stability in battery-powered or energy-harvesting systems where input leakage directly impacts long-term accuracy. The AD8512’s 20 V/µs slew rate suffices for most sensor signal chains but may limit response in fast-transient detection tasks; thus, the selection hinges on whether dc precision or speed dominates design requirements. Additionally, both operate across -55°C to 125°C, making them suitable for automotive and aerospace use, but the AD8512 trades peak performance for lower power consumption (2.2 mA per channel vs. often higher quiescent currents in bipolar alternatives).
What design precautions should engineers take when using the AD8512TRZ-EP-R7 in high-gain configurations above 60 dB, given its gain bandwidth product of 8 MHz and open-loop gain characteristics?
With a gain bandwidth product (GBW) of 8 MHz, the AD8512TRZ-EP-R7 achieves unity-gain crossover near 8 MHz, meaning that at a closed-loop gain of 100 (40 dB), the usable bandwidth drops to approximately 80 kHz. For gains exceeding 60 dB, phase margin degrades significantly, increasing susceptibility to oscillation unless compensated by careful PCB layout and compensation techniques. Engineers should maintain adequate decoupling capacitance near the supply pins, minimize trace lengths from input to feedback network, and consider adding small series resistors (5–10 Ω) at the non-inverting input to dampen parasitic resonances. Simulation using models that include package parasitics is recommended, as real-world performance can diverge from ideal predictions due to layout-induced capacitances.
Can the AD8512TRZ-EP-R7 reliably drive capacitive loads greater than 100 nF without external isolation, and how does this impact stability in motor feedback or power converter control loops?
The AD8512TRZ-EP-R7 can drive moderately capacitive loads but lacks internal compensation for very large capacitances. Driving loads over 100 nF typically requires a series resistor (e.g., 10–50 Ω) between the output and load to prevent oscillation, especially under heavy capacitive swings. In motor control applications where encoders or current-sense circuits introduce significant capacitance, direct drive without isolation may lead to ringing or reduced phase margin. This limitation necessitates evaluation of loop stability using tools like Bode plots or simulation models before deployment. Unlike some rail-to-rail output amplifiers, the AD8512’s output stage is not optimized for low-impedance capacitive loading, so bypassing with a series resistor is standard practice rather than an exception.
How does the operating temperature range of -55°C to 125°C affect the drift of the input offset voltage in the AD8512TRZ-EP-R7, and what compensation strategies are viable for precision analog systems in aerospace or downhole sensing?
Over the full military-industrial temperature span (-55°C to 125°C), the AD8512TRZ-EP-R7 exhibits typical input offset voltage drift of around 0.5 µV/°C, resulting in a total variation of approximately ±100 µV across extremes. While this is acceptable for many industrial systems, aerospace-grade instrumentation may require trimming or calibration at multiple temperatures. Compensation strategies include using chopper-stabilized architectures downstream, implementing software-based offset nulling via microcontrollers, or selecting external trimming potentiometers in the feedback path. Due to its J-FET input structure, thermal gradients between input pairs can exacerbate mismatch, so symmetric layout and thermal anchoring are essential to maintain stability in extreme environments.
What are the key differences between the AD8512TRZ-EP-R7 and the base product AD8512 in terms of packaging and qualification, and why might an engineer choose the EP variant for defense or space applications?
The AD8512TRZ-EP-R7 is a military-grade extended product (EP) version of the standard AD8512, featuring enhanced screening, tighter electrical tolerances, and full compliance with environmental testing standards such as MIL-PRF-38535. It uses the same 8-SOIC package but includes additional reliability measures like burn-in and parametric monitoring unavailable in commercial variants. While the base AD8512 appears in standard T/R packaging and targets industrial automation, the AD8512TRZ-EP-R7 supports harsh conditions with guaranteed performance from -55°C to 125°C and resistance to ionizing radiation up to certain LET thresholds. Engineers select the EP variant only when facing strict certification requirements, such as in satellite telemetry or armored vehicle sensor networks, where component failure carries mission-critical consequences.
How should PCB layout be optimized for the AD8512TRZ-EP-R7 to maximize noise immunity and minimize input-referred noise in sensitive biomedical or seismic monitoring equipment?
To optimize layout for the AD8512TRZ-EP-R7, place the IC close to the signal source to reduce trace inductance and capacitance. Use a solid ground plane beneath the device and route inputs differentially with matched impedance traces to cancel common-mode noise. Keep feedback components (resistors and capacitors) tightly grouped near the op-amp pins to preserve bandwidth and reduce parasitic feedback paths. Since the J-FET inputs are sensitive to ESD, implement guard rings around input pads and avoid routing high-frequency switching signals adjacent to input lines. Decoupling capacitors (0.1 µF ceramic + 10 µF tantalum) should be placed within 5 mm of the supply pins to suppress power supply ripple, which directly modulates the 100 µV input offset and affects long-term stability.
What impact does the 2.2 mA per-channel supply current have on power budgeting in multi-op-amp systems using the AD8512TRZ-EP-R7, and how does it compare to modern CMOS alternatives in portable instrumentation?
At 2.2 mA per channel, the AD8512TRZ-EP-R7 consumes more power than typical CMOS op-amps (often <100 µA), limiting its suitability for ultra-low-power portable devices. In a dual-channel configuration, this equates to 4.4 mA total quiescent current, which over a 30-hour battery life translates to nearly 132 mAh drained solely by the amplifier. While this is negligible in mains-powered industrial gear, it becomes significant in wearable sensors or remote environmental monitors. Compared to CMOS parts like the MCP6L71, the AD8512 trades efficiency for J-FET precision, making it ideal only when low input bias and high CMRR outweigh energy constraints. Hybrid approaches—using the AD8512 for front-end buffering and a CMOS ADC driver later—can balance performance and power.

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc. AD8512TRZ-EP-R7

Product Attribute AD8512TRZ-EP AD8512ARZ-REEL7 AD8512BRZ-REEL7 AD8512BR-REEL7
Part Number AD8512TRZ-EP AD8512ARZ-REEL7 AD8512BRZ-REEL7 AD8512BR-REEL7
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Current - Supply - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Number of Circuits - - - -
Voltage - Supply Span (Max) - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Current - Input Bias - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Mounting Type - Surface Mount Through Hole Surface Mount
Slew Rate - - - -
Series - - - -
Current - Output / Channel - - - -
Gain Bandwidth Product - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Voltage - Input Offset - - - -
Voltage - Supply Span (Min) - - - -
Output Type - Current - Unbuffered Voltage - Buffered -
Amplifier Type - - - -

AD8512TRZ-EP-R7 Datasheet PDF

Download AD8512TRZ-EP-R7 pdf datasheets and Analog Devices Inc. documentation for AD8512TRZ-EP-R7 - Analog Devices Inc..

Other Related Documents
Tape and Reel Packaging.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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AD8512TRZ-EP-R7 Image

AD8512TRZ-EP-R7

Analog Devices Inc.
98D-AD8512TRZ-EP-R7

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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