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

Manufacturer Part Number
AD8512TRZ-EP
Manufacturer
Analog Devices, Inc.
Allelco Part Number
98D-AD8512TRZ-EP
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
45,600 pcs available, New & Original
Parts Description
IC OPAMP JFET 2 CIRCUIT 8SOIC
Package
8-SOIC
Data sheet
-
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 45600
  • Unit Price: $10.752
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $10.752 $10.75
200+ $4.161 $832.20
500+ $4.015 $2,007.50
1000+ $3.943 $3,943.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

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

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 Tube
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 perform in high-impedance sensor signal conditioning applications requiring ultra-low input bias current, and what design considerations are critical for maintaining signal integrity?
The AD8512TRZ-EP is well-suited for high-impedance sensor interfaces due to its exceptionally low input bias current of 21 pA, which minimizes loading effects on slow-responding transducers such as piezoelectric or thermistor-based sensors. When interfacing with sources exceeding 100 MΩ impedance, even this small current can induce significant voltage drift over time; therefore, guarding techniques and careful PCB layout—such as minimizing trace lengths and avoiding ground loops—are essential to preserve signal fidelity. Additionally, the op-amp’s 100 µV input offset voltage may require trimming or calibration in precision DC measurement scenarios.
What trade-offs should engineers evaluate when selecting the AD8512TRZ-EP versus a bipolar-input op-amp like the LMV822MX/NOPB for a battery-powered industrial monitoring system operating from 12 V?
While the AD8512TRZ-EP offers superior DC precision with its J-FET input stage and ultra-low input bias current, the LMV822MX/NOPB consumes significantly less power—typically under 1 mA per channel compared to 2.2 mA for the AD8512TRZ-EP—making it more suitable for energy-constrained environments. However, the AD8512TRZ-EP provides better AC performance with an 8 MHz gain bandwidth product and 20 V/µs slew rate, which supports higher-speed signals without distortion. Engineers must balance power budget against dynamic range and noise requirements when choosing between these alternatives.
Can the AD8512TRZ-EP reliably drive capacitive loads above 10 nF without additional compensation, and how does this affect stability in unity-gain buffer configurations?
The AD8512TRZ-EP can drive moderate capacitive loads but becomes unstable beyond approximately 5–10 nF in unity-gain buffer mode due to insufficient phase margin. For capacitive loads exceeding 10 nF—common in long cable runs or sensor interface circuits—an isolation resistor (e.g., 10 Ω to 50 Ω) should be inserted at the output to isolate the op-amp from the load and prevent oscillation. This technique maintains stability while preserving bandwidth, especially critical in high-impedance source applications where the buffer topology is often preferred.
Given its wide supply range of 10 V to 30 V, what precautions are necessary when using the AD8512TRZ-EP near the lower end of the supply window in noisy industrial environments?
At the minimum supply voltage of 10 V, headroom for output swing is reduced, potentially limiting usable signal amplitude in single-supply designs. In addition, noise margins shrink, increasing susceptibility to EMI-induced errors unless proper filtering and shielding are implemented. Decoupling capacitors (e.g., 100 nF ceramic in parallel with 10 µF tantalum) placed close to each V+ and V− pin are strongly recommended to maintain PSRR and transient response. Also, ensure that common-mode input voltages remain within the specified range, typically referenced to ground when powered from a single rail.
How does the AD8512TRZ-EP compare to the TL3474CPWR in terms of input offset drift over temperature, and which might be preferable for a military-grade thermal imaging front-end?
The AD8512TRZ-EP exhibits extremely low input offset voltage of 100 µV, though datasheet specifications do not explicitly state drift coefficients; however, its J-FET architecture typically shows sub-µV/°C drift characteristics, favorable for stable gain blocks. In contrast, the TL3474CPWR, being a general-purpose CMOS op-amp, generally has higher offset drift—often several µV/°C—which can degrade calibration accuracy over temperature swings. For a military-grade application requiring long-term stability across -55°C to +125°C, the AD8512TRZ-EP is likely the better choice despite potential cost implications.
What are the consequences of exceeding the ±70 mA output current limit per channel on the AD8512TRZ-EP, and how can transient overloads be mitigated?
Exceeding the 70 mA output current capability risks internal thermal damage or latch-up due to excessive power dissipation within the output stage, especially if combined with high supply voltages (e.g., 28 V). Transient overloads from inductive loads or short-circuit conditions should be suppressed using series current-limiting resistors or external foldback current protection circuits. Alternatively, opting for discrete driver stages or dedicated output buffers may extend reliability margins in high-current applications.
Is the AD8512TRZ-EP suitable for use in aerospace telemetry systems requiring radiation tolerance and extended temperature operation up to 125°C?
The AD8512TRZ-EP is qualified to operate across -55°C to +125°C and is available in an extended-performance (EP) variant, indicating enhanced reliability screening. However, it is not inherently radiation-hardened; thus, total ionizing dose (TID) and single-event upset (SEU) performance must be evaluated separately through vendor testing or derating protocols. For mission-critical aerospace telemetry, additional hardening via redundancy, error detection, or selection of radiation-tested derivatives should be considered alongside environmental stress screening.
Why would an engineer choose a dual-channel configuration like the AD8512TRZ-EP over two separate single-channel op-amps, and what layout challenges arise from sharing a common substrate?
Integrating two identical J-FET amplifiers into a single 8-SOIC package reduces board space, simplifies assembly, and ensures matched characteristics—critical for differential amplifier stages or balanced signal paths in instrumentation systems. However, coupling between channels via parasitic capacitance can introduce crosstalk, particularly at high frequencies or when inputs are driven differentially. To mitigate this, keep traces symmetrical, use ground planes effectively, and avoid routing sensitive analog signals adjacent to digital lines. Thermal coupling also means both channels experience similar junction temperatures, aiding predictability in drift behavior.
How does the 8 MHz gain bandwidth product of the AD8512TRZ-EP constrain closed-loop gain selection in precision data acquisition front ends, and what compensation strategies exist?
With a gain bandwidth product of 8 MHz, the achievable bandwidth decreases inversely with closed-loop gain (fBW = GBW / |A|). For example, at a gain of 100, the effective bandwidth drops to ~80 kHz, limiting slew-rate-limited settling times in fast-sampling ADC drivers. In such cases, selecting lower gains or employing non-inverting topologies with resistive feedback networks optimized for phase margin can improve stability. Alternatively, using feedforward compensation or selecting higher-GBW devices may be necessary for multi-MHz signal chains requiring simultaneous high gain and bandwidth.
What role does the Moisture Sensitivity Level (MSL) 1 classification play in handling and storage of the AD8512TRZ-EP, and why is it important for production yield?
MSL 1 indicates the AD8512TRZ-EP is moisture-insensitive and can be stored indefinitely at ambient conditions without requiring bake-out before reflow soldering. This simplifies inventory management and reduces pre-production processing steps, lowering costs and improving turnaround time. Failure to adhere to MSL guidelines—even for Level 1 parts—can still result in popcorning during thermal cycling, especially if absorbed moisture exceeds saturation limits, so proper humidity-controlled storage remains advisable in high-volume manufacturing.
How does the AD8512TRZ-EP’s 20 V/µs slew rate influence maximum undistorted output amplitude when driving a 1 kΩ load with a 10 V peak sine wave at 100 kHz?
The required slew rate for a 10 V peak sine wave at 100 kHz is SR_req = 2πfVp = 2 × π × 100,000 × 10 ≈ 6.28 V/µs, which is well within the AD8512TRZ-EP’s 20 V/µs capability. Therefore, full amplitude output is achievable without slew-induced distortion. However, if the frequency increases beyond ~318 kHz (where SR_req = 20 V/µs), clipping will occur regardless of load impedance. Thus, slew rate primarily constrains high-frequency signal integrity rather than low-to-mid frequency performance.
Are there any known substitutions or pin-compatible replacements for the AD8512TRZ-EP that maintain similar performance characteristics for legacy designs?
Two commonly cited substitutes include the LMV822MX/NOPB and TL3474CPWR, but neither matches all key parameters exactly. The LMV822MX/NOPB is CMOS-based with higher input bias current (~10 pA nominal but with greater variability) and lower slew rate (~0.5 V/µs), making it unsuitable for high-speed applications. The TL3474CPWR offers higher output drive and wider supply range (±18 V) but lacks the DC precision and low-noise performance of the AD8512TRZ-EP. Pin compatibility exists only in basic SOIC packages, but electrical differences necessitate thorough verification before substitution.
What impact does the 2.2 mA quiescent current have on power consumption in a 24 V industrial control system with multiple AD8512TRZ-EP channels active continuously?
Each AD8512TRZ-EP draws 2.2 mA per channel from a ±12 V supply (total ±24 V), resulting in a static power consumption of P = I × V = 2.2 mA × 24 V ≈ 52.8 mW per channel. In a system with eight such channels, total quiescent power reaches ~422 mW, contributing significantly to heat generation and requiring adequate thermal management. While efficient for precision analog tasks, this current draw makes the part less ideal for ultra-low-power designs unless duty-cycled or replaced with lower-Iq alternatives.
How should the AD8512TRZ-EP be handled during prototyping to avoid electrostatic discharge (ESD) damage given its J-FET input stage sensitivity?
J-FET inputs are vulnerable to gate oxide rupture from ESD events, so strict ESD control measures must be followed: use grounded wrist straps, anti-static mats, and ionizers during handling; store unused pins in conductive foam or grounded containers; and avoid contact with charged objects. Although the part carries standard industrial ESD protection levels (typically ±2 kV HBM), repeated exposure can degrade long-term reliability. Always verify functionality after ESD-sensitive assembly steps using appropriate test fixtures.

Parts with Similar Specifications

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

Product Attribute AD8512TRZ-EP-R7 AD8512ARZ-REEL AD8512BRZ-REEL AD8512ARZ-REEL7
Part Number AD8512TRZ-EP-R7 AD8512ARZ-REEL AD8512BRZ-REEL AD8512ARZ-REEL7
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Voltage - Supply Span (Min) - - - -
Number of Circuits - - - -
Current - Supply - - - -
Output Type - Current - Unbuffered Voltage - Buffered -
Current - Output / Channel - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Gain Bandwidth Product - - - -
Voltage - Supply Span (Max) - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Amplifier Type - - - -
Voltage - Input Offset - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Current - Input Bias - - - -
Series - - - -
Slew Rate - - - -

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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 Image

AD8512TRZ-EP

Analog Devices Inc.
98D-AD8512TRZ-EP

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