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Analog Devices Inc. AD712TRZ-EP
- Part No.:
- AD712TRZ-EP
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD712TRZ-EP.pdf
- Description:
- IC OPAMP JFET 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,802
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Product details
Overview
AD712TRZ-EP from Analog Devices is a dual, precision, high-speed BiFET operational amplifier engineered for military-grade operation across −55°C to +125°C. It delivers 16 V/μs minimum slew rate, 3 MHz minimum unity-gain bandwidth, and 150 V/mV minimum open-loop gain, serving as a low-noise, low-input-current buffer for 12-bit DACs/ADCs and photodiode preamplifiers in harsh-environment systems.
For engineers reviewing the AD712TRZ-EP datasheet, AD712TRZ-EP pinout, AD712TRZ-EP application, or AD712TRZ-EP equivalent, key selection criteria include guaranteed military-temperature performance, laser-trimmed offset stability (≤4 mV over temperature), sub-20 μV/°C drift, and SOIC_N package compatibility with legacy LF412/TL082 designs.
Technical Context
The AD712TRZ-EP integrates two independent BiFET op amps on a single die, each featuring JFET input stages for ultra-low input bias current (25 pA typ at 25°C) and high input impedance (3 × 10¹² Ω || 5.5 pF). Its architecture supports fast settling (1.0 μs to ±0.01%) and maintains 88 dB CMRR at DC, enabling stable 12-bit accuracy in unity-gain buffer configurations.
Designed for extended reliability, it employs controlled manufacturing baseline, single fabrication/assembly sites, and enhanced product change notification per AQEC standards. The device operates from ±4.5 V to ±18 V supplies, with quiescent current of 5.0–6.8 mA and output drive capability up to ±25 mA into 2 kΩ loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 16 V/μs min - enables accurate reproduction of fast-rising analog signals without distortion |
| Unity-Gain Bandwidth | 3.0 MHz min - supports stable closed-loop operation up to audio and low-RF frequencies |
| Input Offset Voltage | 4 mV max over −55°C to +125°C - ensures minimal DC error in precision sensor interfaces |
| Input Bias Current | 25 pA typ at 25°C - critical for high-impedance transducer and photodiode front-ends |
| Open-Loop Gain | 100 V/mV min over temperature - guarantees ≥12-bit linearity in buffered gain stages |
| Settling Time | 1.0 μs to ±0.01% - matches timing requirements of 12-bit DAC/ADC data conversion cycles |
| Common-Mode Rejection | 76 dB min over full temperature range - maintains signal integrity in noisy industrial environments |
Pinout & Package
The AD712TRZ-EP is housed in an 8-lead SOIC_N (narrow-body) package per JEDEC MS-012-AA, with 1.27 mm lead pitch and RoHS-compliant finish (Z-suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Amp 1) | Differential input node for first op amp; accepts negative feedback for inverting configurations |
| 2 | Noninverting Input (Amp 1) | Reference input for first op amp; used in noninverting gain and voltage follower topologies |
| 3 | Output (Amp 1) | Active output stage capable of ±13 V swing into 2 kΩ load at ±15 V supplies |
| 4 | V− | Negative supply rail connection; must be decoupled locally for noise immunity |
| 5 | V+ | Positive supply rail connection; supports operation from ±4.5 V to ±18 V |
| 6 | Inverting Input (Amp 2) | Differential input node for second op amp; electrically isolated from Amp 1 inputs |
| 7 | Noninverting Input (Amp 2) | Reference input for second op amp; enables dual-channel signal conditioning on one die |
| 8 | Output (Amp 2) | Independent output stage with same drive strength and voltage swing specs as Pin 3 |
Key Features
| Feature | Design Value |
|---|---|
| Military Temperature Range | Qualified from −55°C to +125°C with full parameter guarantee - eliminates derating calculations in aerospace/defense platforms |
| Laser-Trimmed Offset | Initial offset ≤3 mV and drift ≤20 μV/°C - reduces calibration overhead in precision instrumentation |
| Low Input Current Noise | 0.01 pA/√Hz at 1 kHz - preserves SNR in high-Z photodiode and piezoelectric sensor amplifiers |
| Enhanced Reliability Baseline | Single fab/assembly site + controlled change notification - ensures long-term BOM continuity for embedded OEM programs |
| BiFET Input Architecture | 3 × 10¹² Ω input impedance - prevents loading of high-impedance sources such as crystal oscillators or capacitive sensors |
Applications
| Photodiode Preamp | 12-Bit DAC Buffer |
|---|---|
Use Scenario: Amplifying weak current signals from radiation-hardened photodiodes in space-based star trackers. IC Role / Device Role / Timing Role: Transimpedance amplifier with ultra-low input bias current and low 1/f noise. Use Value: 25 pA typical input bias current minimizes dark-current-induced offset, preserving dynamic range in low-light detection. | Use Scenario: Driving the reference input of a 12-bit voltage-output DAC in a missile guidance actuator control loop. IC Role / Device Role / Timing Role: Unity-gain buffer isolating DAC output from varying load capacitance and ensuring monotonicity. Use Value: 1.0 μs settling to ±0.01% prevents timing jitter in closed-loop position updates at 1 MHz update rates. |
| High-Speed Integrator | Legacy Op Amp Upgrade |
Use Scenario: Precision analog integrator in a radiation-tolerant power converter feedback path operating at 100 kHz switching frequency. IC Role / Device Role / Timing Role: Active integrator core with high open-loop gain (≥100 V/mV) and low drift. Use Value: 150 V/mV minimum open-loop gain ensures <0.1% integration error over temperature and time. | Use Scenario: Drop-in replacement for TL082 and LF412 in fielded avionics signal conditioning modules requiring extended temperature support. IC Role / Device Role / Timing Role: Pin-compatible dual op amp upgrade with identical SOIC_N footprint and improved AC/DC specs. Use Value: Same R-8 package and pinout enable zero-layout-change retrofit while delivering 2× faster slew rate and 3× lower offset drift. |
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 |
|---|---|---|---|
| OP270GPZ | Higher precision (25 μV max offset), lower noise (3.5 nV/√Hz), but slower slew rate (2.7 V/μs) and narrower bandwidth (1.5 MHz) | Better for ultra-low-drift DC instrumentation; unsuitable for >200 kHz signal buffering | Select when offset and noise dominate over speed; avoid where 1 μs settling is required |
| AD8620ARZ | Faster slew rate (25 V/μs), wider bandwidth (25 MHz), but higher input bias current (1 pA vs. 25 pA) and limited to −40°C to +125°C | Preferred for high-speed active filters; not qualified for −55°C operation or AQEC compliance | Choose for commercial/military hybrid systems needing speed; reject for full-spec space/defense use |
Compared with OP270GPZ and AD8620ARZ, the AD712TRZ-EP uniquely balances military-temperature operation, BiFET input performance, and 16 V/μs speed-making it the only option among the three qualified for −55°C to +125°C with guaranteed 1 μs settling and 25 pA input bias current.
Availability
AD712TRZ-EP is available at Aetrix Electronics and suitable for aerospace flight computers, defense radar front-ends, and industrial process controllers requiring stable component supply under extreme thermal cycling and long lifecycle commitments.
Supply support for AD712TRZ-EP 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, founded in 1965 and headquartered in Wilmington, MA.
The AD712-EP product line delivers radiation-tolerant, temperature-qualified op amps for mission-critical defense, aerospace, and satellite systems where reliability, longevity, and specification guarantee across extreme conditions are mandatory.
FAQ
What is the guaranteed operating temperature range for the AD712TRZ-EP?
The AD712TRZ-EP is fully specified and guaranteed over −55°C to +125°C, with all electrical parameters-including offset voltage, bias current, slew rate, and bandwidth-validated across this full military temperature range per AQEC standards. This differs from commercial variants like AD712ARZ, which are rated only from −40°C to +85°C.
Is the AD712TRZ-EP pin-compatible with the TL082 or LF412?
Yes, the AD712TRZ-EP uses the standard 8-lead SOIC_N (R-8) package with identical pinout to TL082 and LF412, enabling direct PCB-level replacement. All functional pins-V+, V−, both inverting/noninverting inputs, and outputs-map one-to-one, allowing drop-in upgrades without layout changes.
Does the AD712TRZ-EP support dual-supply operation below ±15 V?
Yes, the AD712TRZ-EP operates from ±4.5 V to ±18 V supplies. At ±5 V, it maintains 16 V/μs slew rate and 1.2 μs settling to ±0.01%, making it viable for low-voltage precision systems. Quiescent current drops to ~5.0 mA at ±5 V, improving power efficiency in battery-constrained avionics subsystems.
What is the maximum guaranteed input offset voltage drift over temperature for the AD712TRZ-EP?
The AD712TRZ-EP has a maximum input offset voltage drift of 20 μV/°C over −55°C to +125°C, verified by laser trimming and production testing. This value appears in the Matching Characteristics table of the datasheet and applies to both amplifiers on the die, ensuring matched thermal behavior in dual-channel circuits.
How does the AD712TRZ-EP handle common-mode voltage beyond the supply rails?
The AD712TRZ-EP specifies a common-mode input voltage range of −VS + 4 V to +VS − 2 V. Exceeding −14.1 V on either input (at ±15 V supplies) risks output phase reversal. This limitation is explicitly documented in the datasheet's "Input Voltage Range" section and must be respected in level-shifting or rail-to-rail sensing applications.
AD712TRZ-EP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- J-FET
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 20V/µs
- Gain Bandwidth Product:
- 3 MHz
- -3db Bandwidth:
- 4 MHz
- Current - Input Bias:
- 25 pA
- Voltage - Input Offset:
- 300 µV
- Current - Supply:
- 5mA
- Current - Output / Channel:
- 25 mA
- Voltage - Supply Span (Min):
- 9 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AD712TRZ-EP FAQ
1.How can I place an order for AD712TRZ-EP through Aetrix?
Please submit a Request for Quotation (RFQ) for AD712TRZ-EP 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 AD712TRZ-EP reliable?
The price and inventory of AD712TRZ-EP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD712TRZ-EP is usually 5 days.
3.What payment methods are accepted for AD712TRZ-EP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD712TRZ-EP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD712TRZ-EP?
AD712TRZ-EP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD712TRZ-EP 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 AD712TRZ-EP?
For technical support, including AD712TRZ-EP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD712TRZ-EP requirements.
6.How does Aetrix verify that AD712TRZ-EP is sourced from the original manufacturer or authorized distributors?
All AD712TRZ-EP 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 AD712TRZ-EP meets industry standards.
7.What is the process for return or replacement of AD712TRZ-EP?
All AD712TRZ-EP units undergo pre-shipment inspection (PSI). If there is an issue with AD712TRZ-EP, 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 AD712TRZ-EP part is unused and in its original packaging.
Return procedure for AD712TRZ-EP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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