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Analog Devices Inc. AD822TRZ-EP
- Part No.:
- AD822TRZ-EP
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD822TRZ-EP.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:820
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Product details
Overview
AD822TRZ-EP from Analog Devices is a dual-channel, precision, low-power FET-input operational amplifier engineered for military and aerospace applications. It operates from single supplies (5 V to 30 V) or dual supplies (±2.5 V to ±15 V), delivers rail-to-rail output swing within 10 mV of each rail, features 1.8 MHz unity-gain bandwidth and 3 V/μs slew rate, and supports operation across −55°C to +125°C - enabling use in photodiode preamplifiers and 14-bit data acquisition systems under extreme environmental conditions.
For engineers reviewing the AD822TRZ-EP datasheet, AD822TRZ-EP pinout, AD822TRZ-EP application, or AD822TRZ-EP equivalent, this page provides verified specifications, military-grade thermal and noise performance, SOIC_N package layout, real-world load drive capability (350 pF, 15 mA), and validated alternatives for high-reliability analog signal conditioning designs.
Technical Context
The AD822TRZ-EP employs JFET input stages enabling ultra-low input bias current (≤25 pA at 25°C) and high input impedance (10¹³ Ω || 0.5 pF differential), critical for high-impedance sensor interfaces. Its true single-supply architecture allows input common-mode voltage to extend 0.2 V below the negative rail - supporting ground-referenced inputs even at 5 V supply.
Internally compensated for unity-gain stability, it maintains 1.8 MHz bandwidth with 3 V/μs slew rate and achieves −93 dB THD at 10 kHz into 10 kΩ, while delivering rail-to-rail output swing with <10 mV saturation voltage at light loads - all at ≤1.6 mA total quiescent current across temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | Single: 5 V to 30 V; Dual: ±2.5 V to ±15 V - enables direct integration into 5 V, 12 V, or 24 V industrial and avionics power domains. |
| Unity-Gain Bandwidth | 1.8 MHz - supports stable closed-loop gain ≥1 with adequate phase margin into 350 pF capacitive loads. |
| Slew Rate | 3 V/μs - ensures faithful reproduction of 25 kHz full-scale sine waves (e.g., 4.5 VPP) without distortion. |
| Input Offset Voltage | Max 0.8 mV at 25°C - limits DC error to <0.02% of 4 V output span in precision reference buffers. |
| Input Bias Current | Max 25 pA at 25°C - preserves signal integrity in >1 GΩ photodiode or piezoelectric sensor front-ends. |
| Operating Temperature | −55°C to +125°C - qualified per AQEC standard for defense/aerospace deployment without derating. |
| Output Drive | 15 mA min, 350 pF capacitive load - drives ADC input filters, long cables, or multiple downstream op-amps directly. |
Pinout & Package
AD822TRZ-EP is housed in an 8-lead narrow-body SOIC_N (R-8) package per JEDEC MS-012-AA, with 1.27 mm lead pitch and 5.00 mm × 4.00 mm body dimensions. Thermal resistance θJA = 160°C/W reflects standard PCB mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Amplifier 1 output | Delivers rail-to-rail voltage with <10 mV saturation at 20 μA sink/source - connects directly to ADC inputs or filter networks. |
| 2 (–IN1) | Inverting input, Amp 1 | High-impedance JFET node; common-mode range extends 0.2 V below V– - accepts ground-referenced signals on single supply. |
| 3 (+IN1) | Non-inverting input, Amp 1 | Matches –IN1 in bias current and offset; used for unity-gain buffers or precision summing nodes. |
| 4 (V–) | Negative supply rail | Reference for both amplifiers; must be decoupled locally with 0.1 µF ceramic capacitor to minimize PSRR degradation. |
| 5 (V+) | Positive supply rail | Accepts up to +30 V (single) or +15 V (dual); internal ESD protection rated to 260°C soldering temp. |
| 6 (OUT2) | Amplifier 2 output | Electrically isolated from OUT1; crosstalk <−130 dB at 1 kHz - suitable for dual-channel signal paths without coupling. |
| 7 (–IN2) | Inverting input, Amp 2 | Independent high-Z input; matches Amp 1 specs - enables dual active filters or differential receiver front-ends. |
| 8 (+IN2) | Non-inverting input, Amp 2 | Paired with OUT2; identical CMVR and noise performance - supports matched channel instrumentation topologies. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Swings within 10 mV of V+ and V– rails at light loads - maximizes dynamic range in 5 V or ±5 V systems. |
| True single-supply operation | Input common-mode voltage extends 0.2 V below V– - eliminates level-shifting need for 0 V–referenced sensors. |
| Military-grade qualification | AQEC-compliant with controlled fab/assembly baseline, extended temp range (−55°C to +125°C), and enhanced change notification. |
| Low-noise FET input | 13 nV/√Hz @ 10 kHz and 2 μV/°C offset drift - preserves SNR in low-frequency precision measurement chains. |
| Capacitive load drive | Stable with 350 pF in unity-gain follower configuration - simplifies anti-aliasing filter design without external isolation resistors. |
Applications
| Photodiode Preamp | Active Filter |
|---|---|
Use Scenario: Amplifying weak current from radiation-hardened photodiodes in space-based optical sensors. IC Role / Device Role / Timing Role: Transimpedance amplifier with ultra-low input bias current (<25 pA) and wide supply range to accommodate varying bus voltages. Use Value: Enables sub-picoampere current detection without significant input error, preserving linearity over −55°C to +125°C mission profiles. | Use Scenario: Implementing 2nd-order low-pass filtering in missile guidance analog signal paths. IC Role / Device Role / Timing Role: Dual-channel op-amp configured as Sallen-Key topology with matched gain/phase response. Use Value: Delivers <−93 dB THD at 10 kHz and 1.8 MHz bandwidth while maintaining rail-to-rail output swing for full-scale filter output. |
| 14-bit Data Acquisition | Low-Power Reference Buffer |
Use Scenario: Driving SAR ADC inputs in ruggedized field data loggers operating from battery or 24 V vehicle power. IC Role / Device Role / Timing Role: Precision buffer isolating high-impedance voltage references from ADC sampling transients. Use Value: 0.8 mV max offset and 15 mA drive ensure <0.05 LSB error at 14-bit resolution (1.22 mV/LSB @ 2 V span) with no external boost circuitry. | Use Scenario: Stabilizing low-drift bandgap references in satellite power management units. IC Role / Device Role / Timing Role: Unity-gain follower with <2 μV/°C offset drift and 10¹³ Ω input impedance to prevent reference loading. Use Value: Maintains reference accuracy over temperature extremes without degrading long-term stability or increasing system power budget. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2188AIDR | Zero-drift architecture; 0.003 μV/°C drift vs. AD822TRZ-EP's 2 μV/°C; higher 2 MHz GBW but 1.3 mA quiescent current. | Better for <100 ppm/°C DC-critical systems (e.g., precision DAC buffers); less suited for wide-temp uncalibrated use due to auto-zero artifacts. | Select OPA2188AIDR when ultra-low drift dominates; retain AD822TRZ-EP for proven military reliability and wider supply range (up to 30 V). |
| LT1013DM8#PBF | Bipolar input; 200 nA max IB vs. 25 pA; lower 1.2 MHz GBW; −55°C to +125°C rated but not AQEC-qualified. | Lower cost for non-aerospace industrial use; unsuitable for high-Z sensor interfaces due to input current error. | Choose LT1013DM8#PBF only for cost-sensitive terrestrial applications where input bias current >100× higher is acceptable. |
Compared with OPA2188AIDR and LT1013DM8#PBF, AD822TRZ-EP uniquely balances FET-input precision, military-grade qualification, 30 V absolute maximum supply, and 350 pF capacitive load drive - making it the sole option for uncooled, high-reliability analog signal chains in defense electronics.
Availability
AD822TRZ-EP is available at Aetrix Electronics and suitable for photodiode preamplification, active filtering, and 14-bit data acquisition systems requiring stable component supply across extended temperature and long product lifecycles.
Supply support for AD822TRZ-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, serving industrial, automotive, communications, and defense markets since 1965.
The AD822-EP product line delivers radiation-tolerant, extended-temperature op amps designed specifically for mission-critical aerospace, defense, and downhole oilfield electronics where reliability trumps cost.
FAQ
What is the maximum supply voltage rating for AD822TRZ-EP?
The AD822TRZ-EP has an absolute maximum supply voltage rating of ±18 V for dual supplies or 36 V total for single supply, as specified in Table 4 of the datasheet. Operation beyond these limits risks permanent damage. For reliable long-term use, Analog Devices recommends staying within the functional range of ±15 V dual or 5 V to 30 V single supply.
Does AD822TRZ-EP support rail-to-rail input voltage range?
No, AD822TRZ-EP does not support rail-to-rail input. Its input common-mode voltage range extends to within 1 V of the positive rail and 0.2 V below the negative rail (e.g., −0.2 V to +4 V on 5 V single supply). This "beyond-the-rails" capability on the negative side enables ground-referenced inputs, but the upper limit remains 1 V below V+ to maintain amplifier linearity and bandwidth.
What is the typical input bias current of AD822TRZ-EP at −55°C?
At −55°C, the AD822TRZ-EP exhibits a typical input bias current of 2 pA, with a maximum of 0.5 nA per amplifier as specified in Table 1 (T Grade, Input Bias Current at TMAX). This ultra-low value is enabled by its JFET input stage and remains stable across the full military temperature range.
Can AD822TRZ-EP drive a 10 kΩ load while maintaining rail-to-rail output swing?
Yes, AD822TRZ-EP maintains rail-to-rail output swing into 10 kΩ loads. At ISOURCE/ISINK = 2 mA, the output saturation voltage is 80–110 mV from the rails (Table 1), meaning it swings to within ~100 mV of V+ and V– - effectively rail-to-rail for most 12- to 14-bit precision applications. Full 15 mA drive is reserved for heavier loads.
Is AD822TRZ-EP pin-compatible with commercial-grade AD822ARZ?
Yes, AD822TRZ-EP is pin-compatible with AD822ARZ and other AD822 variants in the 8-lead SOIC_N (R-8) package. Both share identical pinout, footprint, and electrical interface. However, AD822TRZ-EP adds AQEC qualification, extended temperature screening, and controlled manufacturing baseline - making it a drop-in replacement where military reliability is required.
AD822TRZ-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:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 3V/µs
- Gain Bandwidth Product:
- 1.9 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 2 pA
- Voltage - Input Offset:
- 400 µV
- Current - Supply:
- 1.4mA
- Current - Output / Channel:
- 20 mA
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AD822TRZ-EP FAQ
1.How can I place an order for AD822TRZ-EP through Aetrix?
Please submit a Request for Quotation (RFQ) for AD822TRZ-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 AD822TRZ-EP reliable?
The price and inventory of AD822TRZ-EP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD822TRZ-EP is usually 5 days.
3.What payment methods are accepted for AD822TRZ-EP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD822TRZ-EP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD822TRZ-EP?
AD822TRZ-EP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD822TRZ-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 AD822TRZ-EP?
For technical support, including AD822TRZ-EP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD822TRZ-EP requirements.
6.How does Aetrix verify that AD822TRZ-EP is sourced from the original manufacturer or authorized distributors?
All AD822TRZ-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 AD822TRZ-EP meets industry standards.
7.What is the process for return or replacement of AD822TRZ-EP?
All AD822TRZ-EP units undergo pre-shipment inspection (PSI). If there is an issue with AD822TRZ-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 AD822TRZ-EP part is unused and in its original packaging.
Return procedure for AD822TRZ-EP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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