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Analog Devices Inc. ADA4062-2ARMZ-RL
- Part No.:
- ADA4062-2ARMZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADA4062-2ARMZ-RL.pdf
- Description:
- IC OPAMP JFET 2 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,673
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Product details
Overview
ADA4062-2ARMZ-RL from Analog Devices is a dual JFET-input operational amplifier optimized for low-power, high-precision signal conditioning in industrial and instrumentation systems. It delivers 50 pA max input bias current, 1.5 mV max offset voltage (B grade), 5 µV/°C typical drift, ±5 V to ±15 V dual-supply operation, and unity-gain stability - enabling use in micropower instrumentation amplifiers and high-side current sensing.
For engineers reviewing the ADA4062-2ARMZ-RL datasheet, ADA4062-2ARMZ-RL pinout, ADA4062-2ARMZ-RL application, or ADA4062-2ARMZ-RL equivalent, key selection criteria include ultralow input bias current for high-impedance sensor buffering, rail-to-rail output swing capability, extended −40°C to +125°C temperature range, and MSOP-8 packaging for space-constrained PCB layouts.
Technical Context
The ADA4062-2ARMZ-RL implements a JFET-input stage with 10 TΩ typical input resistance and 1.4 MHz gain-bandwidth product, supporting stable closed-loop operation at unity gain. Its input common-mode range extends to the positive supply rail (+15 V) and −11.5 V on ±15 V supplies, enabling high-side signal conditioning without phase reversal up to +15 V.
It features 3.3 V/µs slew rate, 90 dB typical CMRR, and 165 µA typical supply current per amplifier - balancing precision, speed, and power efficiency for battery-powered or thermally constrained applications requiring long-term DC accuracy and low noise.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Bias Current | 50 pA maximum - enables use with >1 MΩ source impedances without significant error (e.g., piezoelectric sensors, pH electrodes). |
| Offset Voltage (B Grade) | 1.5 mV maximum - ensures ≤1.5 mV DC error in precision DC-coupled gain stages at room temperature. |
| Offset Drift | 5 µV/°C typical - limits thermal-induced offset error to <0.6 mV over −40°C to +125°C operating range. |
| Supply Current per Amp | 165 µA typical - supports micropower designs; dual-channel draws only ~330 µA total at ±15 V. |
| Gain-Bandwidth Product | 1.4 MHz - provides usable bandwidth for 60 Hz notch filters, active low-pass filtering, and sensor signal conditioning up to ~100 kHz. |
| Output Swing | ±13.5 V min on ±15 V supplies - delivers >90% rail-to-rail swing into 10 kΩ loads, preserving dynamic range in analog front-ends. |
| CMRR | 90 dB typical - rejects common-mode interference in noisy industrial environments (e.g., motor drives, PLC I/O). |
Pinout & Package
ADA4062-2ARMZ-RL is packaged in an 8-lead MSOP (RM-8), measuring 3.0 mm × 3.0 mm × 0.85 mm, with exposed pad recommended to be connected to V– for thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Drives external load; capable of ±13.5 V swing into 10 kΩ on ±15 V supplies. |
| 2 (–IN A) | Inverting input A | High-impedance node (10 TΩ); sensitive to layout parasitics - requires guard ring in high-Z applications. |
| 3 (+IN A) | Non-inverting input A | Accepts input common-mode voltage from −11.5 V to +15 V on ±15 V supplies. |
| 4 (V–) | Negative supply | Reference for internal circuitry; exposed pad must be connected to this pin for optimal thermal resistance (θJC = 45°C/W). |
| 5 (+IN B) | Non-inverting input B | Independent channel input; identical specs to Channel A - enables dual-path signal processing. |
| 6 (–IN B) | Inverting input B | Matches Channel A performance; supports matched resistor networks in instrumentation amplifier topologies. |
| 7 (OUT B) | Amplifier B output | Electrically isolated from OUT A; channel separation >135 dB at 1 kHz minimizes crosstalk. |
| 8 (V+) | Positive supply | Accepts +5 V to +15 V; PSRR of 90 dB suppresses supply noise coupling into output. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow input bias current | 2 pA typical - preserves signal integrity when interfacing with high-impedance sources like photodiodes or electret microphones. |
| Extended temperature range | −40°C to +125°C operation - qualified for under-hood automotive, industrial control, and downhole instrumentation. |
| No phase reversal | Operates safely with inputs up to +15 V (V+) without polarity inversion - eliminates need for external clamping in high-side sensing. |
| Low 0.1 Hz to 10 Hz noise | 1.5 µV p-p - critical for precision DC measurements in weigh scales, medical ECG front-ends, and strain gauge bridges. |
| Unity-gain stable | Guaranteed stable with gain ≥1 - simplifies design of buffers, followers, and active filters without external compensation. |
Applications
| Power Controls and Monitoring | Active Filters |
|---|---|
Use Scenario: Monitoring voltage/current in solar charge controllers and battery management systems using shunt resistors and high-impedance dividers. IC Role / Device Role / Timing Role: Dual-channel buffer and difference amplifier for isolated high-side current sensing and rail-referenced voltage scaling. Use Value: 50 pA input bias avoids loading 1 MΩ+ divider networks; 165 µA per amp enables always-on monitoring with minimal quiescent power draw. | Use Scenario: Implementing 60 Hz notch filters in ECG and EEG acquisition systems to reject mains interference. IC Role / Device Role / Timing Role: Voltage follower driving twin-T network; leverages high input impedance and 1.4 MHz GBW for precise null depth. Use Value: Achieves >50 dB attenuation at 60 Hz with 1% passive components; low noise preserves SNR in sub-µV biomedical signals. |
| Industrial/Process Controls | Body Probe Electronics |
Use Scenario: Signal conditioning for 4–20 mA loop receivers and RTD/thermocouple interfaces in PLC analog input modules. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end (using both channels) with matched internal op amps improving CMRR. Use Value: 5 µV/°C drift minimizes calibration drift over wide ambient ranges; 90 dB CMRR rejects field-induced noise in factory-floor wiring. | Use Scenario: Front-end amplification for pH electrodes and ion-selective sensors in portable diagnostic devices. IC Role / Device Role / Timing Role: High-impedance buffer isolating electrode from downstream circuitry while rejecting common-mode cable noise. Use Value: 10 TΩ input resistance prevents electrode polarization; 1.5 mV max offset ensures accurate baseline measurement without frequent zeroing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual JFET-input op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8642ARZ | Faster 3.5 MHz GBW but higher 1.2 mA supply current; CMRR 105 dB vs. 90 dB. | Better for higher-speed active filters; unsuitable for micropower (<500 µA) designs. | Choose AD8642ARZ when bandwidth >1 MHz and supply current >1 mA is acceptable. |
| TL072CDR | Higher 200 pA input bias current; wider 16 V/µs slew rate; no guaranteed −40°C to +125°C operation. | Lower cost for commercial-temp consumer audio; insufficient for precision industrial sensing. | Choose TL072CDR only for non-critical, room-temperature, cost-sensitive applications. |
Compared with AD8642ARZ and TL072CDR, ADA4062-2ARMZ-RL uniquely balances ultralow bias current (50 pA max), micropower consumption (165 µA/amp), and extended temperature qualification - making it the only option among the three suitable for battery-powered, high-impedance sensor nodes operating across −40°C to +125°C.
Availability
ADA4062-2ARMZ-RL is available at Aetrix Electronics and suitable for industrial process controls, precision instrumentation, and battery-powered medical devices requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADA4062-2ARMZ-RL 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, communications, automotive, and healthcare markets.
The ADA4062 family is designed for precision, low-power signal conditioning in harsh environments - targeting applications where ultralow input bias current, wide temperature operation, and rail-compatible input stages are essential.
FAQ
What is the maximum input common-mode voltage for ADA4062-2ARMZ-RL on ±15 V supplies?
The ADA4062-2ARMZ-RL supports an input common-mode voltage range of −11.5 V to +15 V on ±15 V supplies. This allows direct connection to signals referenced to the positive rail - such as high-side current sense outputs - without phase reversal or clipping, provided inputs remain within these bounds.
Does ADA4062-2ARMZ-RL require external compensation for unity-gain stability?
No, ADA4062-2ARMZ-RL is internally compensated and unity-gain stable. It can be used directly as a voltage follower or in gain-of-1 configurations without external capacitors or feedback adjustments - verified across its full −40°C to +125°C operating range.
What is the thermal resistance (θJA) of the ADA4062-2ARMZ-RL MSOP-8 package?
The ADA4062-2ARMZ-RL in the 8-lead MSOP (RM-8) package has a junction-to-ambient thermal resistance (θJA) of 142°C/W, measured on a standard 4-layer JEDEC board. The exposed pad must be soldered to a thermal pad connected to V– to achieve this rating.
Can ADA4062-2ARMZ-RL drive capacitive loads without oscillation?
ADA4062-2ARMZ-RL remains stable driving up to 100 pF capacitive loads in unity-gain configuration, as confirmed by overshoot testing. For larger loads (>100 pF), isolation resistors (e.g., 10–100 Ω in series with the output) are recommended to maintain phase margin above 78°.
Is ADA4062-2ARMZ-RL pin-compatible with other packages in the ADA4062-2 family?
Yes - ADA4062-2ARMZ-RL (MSOP-8), ADA4062-2ARZ (SOIC-8), and ADA4062-2ACPZ (LFCSP-10) share identical pin functions and numbering for Pins 1–8. However, the LFCSP-10 adds two NC pins and an exposed thermal pad, requiring layout adaptation despite functional equivalence.
ADA4062-2ARMZ-RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- J-FET
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 3.3V/µs
- Gain Bandwidth Product:
- 1.4 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 2 pA
- Voltage - Input Offset:
- 750 µV
- Current - Supply:
- 165µA (x2 Channels)
- Current - Output / Channel:
- 20 mA
- Voltage - Supply Span (Min):
- 8 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
ADA4062-2ARMZ-RL FAQ
1.How can I place an order for ADA4062-2ARMZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4062-2ARMZ-RL 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 ADA4062-2ARMZ-RL reliable?
The price and inventory of ADA4062-2ARMZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4062-2ARMZ-RL is usually 5 days.
3.What payment methods are accepted for ADA4062-2ARMZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4062-2ARMZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4062-2ARMZ-RL?
ADA4062-2ARMZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4062-2ARMZ-RL 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 ADA4062-2ARMZ-RL?
For technical support, including ADA4062-2ARMZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4062-2ARMZ-RL requirements.
6.How does Aetrix verify that ADA4062-2ARMZ-RL is sourced from the original manufacturer or authorized distributors?
All ADA4062-2ARMZ-RL 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 ADA4062-2ARMZ-RL meets industry standards.
7.What is the process for return or replacement of ADA4062-2ARMZ-RL?
All ADA4062-2ARMZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADA4062-2ARMZ-RL, 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 ADA4062-2ARMZ-RL part is unused and in its original packaging.
Return procedure for ADA4062-2ARMZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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