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Analog Devices Inc. ADA4062-2ARMZ-R7
- Part No.:
- ADA4062-2ARMZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADA4062-2ARMZ-R7.pdf
- Description:
- IC OPAMP JFET 2 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,605
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Product details
Overview
ADA4062-2ARMZ-R7 from Analog Devices is a dual JFET-input operational amplifier optimized for low-power, high-precision signal conditioning. It delivers 50 pA maximum input bias current, 1.5 mV maximum 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 circuits.
For engineers reviewing the ADA4062-2ARMZ-R7 datasheet, ADA4062-2ARMZ-R7 pinout, ADA4062-2ARMZ-R7 application, or ADA4062-2ARMZ-R7 equivalent, key selection criteria include ultralow input bias current, rail-to-rail output swing capability (±13.5 V/±13.8 V at ±15 V supplies), extended industrial temperature range (−40°C to +125°C), and SOIC-compatible 8-lead MSOP packaging with exposed pad thermal management.
Technical Context
The ADA4062-2ARMZ-R7 employs a JFET-input stage delivering 10 TΩ input resistance and 1.5 pF differential input capacitance, supporting high-impedance sensor interfacing without loading. Its internal compensation ensures unity-gain stability across supply voltages from ±5 V to ±15 V while maintaining 78° phase margin and 1.4 MHz gain bandwidth product.
Designed for precision analog front-ends, it features matched dual amplifiers in one die - critical for instrumentation amplifier topologies requiring tight channel-to-channel tracking. The device avoids phase reversal up to the positive rail (+15 V) and down to −14.5 V (at ±15 V supplies), with input common-mode range spanning −11.5 V to +15 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Bias Current | 2 pA typical / 50 pA max - enables use with >1 MΩ source impedances without significant DC error. |
| Offset Voltage (B Grade) | 0.5 mV typical / 1.5 mV max - supports sub-millivolt accuracy in precision buffer and integrator circuits. |
| Slew Rate | 3.3 V/µs typical - sufficient for 10 V step response in <3.5 µs (0.1% settling) with 100 pF load. |
| Supply Current per Amp | 165 µA typical - allows dual-amplifier operation at <330 µA total, ideal for battery-powered instrumentation. |
| CMRR | 90 dB typical - rejects common-mode noise in bridge sensor and current-sense applications. |
| Gain Bandwidth Product | 1.4 MHz - supports stable closed-loop gains up to ~100× at DC–10 kHz with minimal phase loss. |
| Operating Temp Range | −40°C to +125°C - qualified for under-hood automotive, industrial control, and process monitoring environments. |
Pinout & Package
ADA4062-2ARMZ-R7 is packaged in an 8-lead MSOP (RM-8) with exposed thermal pad, compliant to JEDEC MO-187-AA. Pin 1 is marked by a dot; the exposed pad must be connected to V– for optimal thermal performance and noise immunity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives loads up to ±13.5 V/±13.8 V swing into 10 kΩ. |
| 2 | –IN A | Inverting input of Amp A - high-impedance node (10 TΩ) sensitive to PCB leakage. |
| 3 | +IN A | Non-inverting input of Amp A - accepts common-mode voltages up to +15 V. |
| 4 | V– | Negative supply rail - also connects to exposed thermal pad for thermal dissipation. |
| 5 | +IN B | Non-inverting input of Amp B - electrically isolated but thermally coupled to Amp A for matched drift. |
| 6 | –IN B | Inverting input of Amp B - identical electrical specs to Pin 2; supports dual-channel designs. |
| 7 | OUT B | Amplifier B output - independent output stage with same drive capability as Pin 1. |
| 8 | V+ | Positive supply rail - accepts ±5 V to ±15 V dual supplies; PSRR = 90 dB typical. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow Input Bias Current | 2 pA typical enables direct interfacing with piezoelectric sensors, photodiodes, and high-value RC networks without guard rings. |
| Matched Dual Amplifier | Tight thermal coupling between Amp A and Amp B yields <5 µV/°C typical offset drift matching - critical for 2-op-amp IA topologies. |
| No Phase Reversal to Rail | Operates safely with inputs up to V+ (e.g., +15 V) without polarity inversion - simplifies high-side sensing design. |
| Unity-Gain Stable | Internally compensated for AV ≥ 1 - eliminates need for external compensation in buffer, follower, and active filter configurations. |
| Extended Temperature Range | Specified from −40°C to +125°C - supports deployment in motor drives, power converters, and industrial PLC modules. |
Applications
| High-Side Current Sensing | Micropower Instrumentation Amplifier |
|---|---|
Use Scenario: Monitoring battery charge/discharge current in portable medical devices using a 0.1 Ω shunt placed between load and positive supply rail. IC Role / Device Role / Timing Role: ADA4062-2ARMZ-R7 acts as a high-common-mode-voltage difference amplifier with input range extending to +15 V. Use Value: Enables accurate current measurement without ground-referenced shunt, preserving system ground integrity and reducing EMI susceptibility. | Use Scenario: Building a 100× gain instrumentation amplifier for thermocouple signal conditioning in handheld test equipment. IC Role / Device Role / Timing Role: ADA4062-2ARMZ-R7 provides both amplifiers in a single MSOP package, forming the two-input stage of a classic 2-op-amp IA. Use Value: Delivers <330 µA total supply current and matched drift (<5 µV/°C), achieving >100 dB CMRR with discrete resistor networks. |
| Notch Filter for ECG Front-End | Body Probe Electronics |
Use Scenario: Removing 60 Hz mains interference from electrocardiogram (ECG) signals acquired via dry electrodes. IC Role / Device Role / Timing Role: ADA4062-2ARMZ-R7 configured as unity-gain buffer driving a twin-T notch network. Use Value: Ultralow bias current (2 pA) permits use of large-value resistors (>800 kΩ) and small capacitors (3.3 nF), minimizing component sensitivity and board area. | Use Scenario: Signal conditioning for disposable biopotential electrodes used in EEG or EMG headsets. IC Role / Device Role / Timing Role: ADA4062-2ARMZ-R7 serves as first-stage input buffer with >10 TΩ input impedance to prevent electrode polarization. Use Value: Preserves weak microvolt-level neural signals by eliminating loading error and minimizing Johnson-Nyquist noise contribution. |
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 slew rate (12 V/µs), higher supply current (1.2 mA/amp), CMOS input (not JFET), lower input bias current (1 pA typ). | Better for high-speed filtering; unsuitable for high-Z sensor buffering where gate leakage dominates. | Select AD8642ARZ when bandwidth >10 MHz is required and supply current is not constrained. |
| TL072CDR | Higher input bias current (30 nA max), wider offset spread (10 mV max), no guaranteed −40°C to +125°C operation. | Cost-sensitive general-purpose use only; not suitable for precision instrumentation or extended temperature environments. | Choose TL072CDR only for non-critical, commercial-temp applications with relaxed DC accuracy. |
Compared with AD8642ARZ and TL072CDR, ADA4062-2ARMZ-R7 uniquely balances ultralow bias current (2 pA), micropower operation (165 µA/amp), and full industrial temperature qualification - making it the only option among the three for battery-powered, high-impedance, wide-temperature sensor interfaces.
Availability
ADA4062-2ARMZ-R7 is available at Aetrix Electronics and suitable for high-impedance sensor interfacing, micropower instrumentation amplifiers, and high-side current monitoring requiring stable component supply across industrial, medical, and test equipment programs.
Supply support for ADA4062-2ARMZ-R7 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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Wilmington, MA.
The ADA4062 family was designed specifically for precision, low-power analog signal chains in harsh environments - targeting applications demanding ultralow input bias current, wide temperature operation, and rail-compatible input stages.
FAQ
What is the maximum input common-mode voltage for ADA4062-2ARMZ-R7?
The ADA4062-2ARMZ-R7 supports an input common-mode voltage range of −11.5 V to +15 V when operated at ±15 V supplies. This allows direct high-side sensing up to the positive rail without phase reversal, provided the negative input remains above −14.5 V to avoid gate-drain diode forward conduction.
Does ADA4062-2ARMZ-R7 require external compensation?
No, ADA4062-2ARMZ-R7 is internally compensated and unity-gain stable. It can be used directly in voltage-follower, non-inverting, and inverting configurations with closed-loop gains ≥1 without added compensation components - verified across ±5 V to ±15 V supply ranges.
What is the thermal pad connection requirement for ADA4062-2ARMZ-R7?
The exposed thermal pad on the ADA4062-2ARMZ-R7 MSOP package must be soldered to a PCB copper pour connected to the V– supply rail. This connection is mandatory for thermal dissipation, noise reduction, and meeting specified junction-to-ambient thermal resistance (θJA = 142°C/W).
Can ADA4062-2ARMZ-R7 drive capacitive loads?
ADA4062-2ARMZ-R7 can drive up to 100 pF capacitive loads while maintaining 0.1% settling in 3.5 µs. For larger loads, external isolation resistors (e.g., 100 Ω in series with output) are recommended to preserve stability and minimize overshoot, as shown in Figure 31 and Figure 34 of the datasheet.
Is ADA4062-2ARMZ-R7 pin-compatible with other SOIC-based dual op amps?
No - ADA4062-2ARMZ-R7 uses an 8-lead MSOP (RM-8) package, not SOIC. While its pinout matches the industry-standard dual op amp configuration (OUT/–IN/+IN/V–/V+/+IN/–IN/OUT), physical compatibility requires MSOP footprint and reflow profile adjustments versus SOIC packages like ADA4062-2ARZ-R7.
ADA4062-2ARMZ-R7 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-R7 FAQ
1.How can I place an order for ADA4062-2ARMZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4062-2ARMZ-R7 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-R7 reliable?
The price and inventory of ADA4062-2ARMZ-R7 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-R7 is usually 5 days.
3.What payment methods are accepted for ADA4062-2ARMZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4062-2ARMZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4062-2ARMZ-R7?
ADA4062-2ARMZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4062-2ARMZ-R7 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-R7?
For technical support, including ADA4062-2ARMZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4062-2ARMZ-R7 requirements.
6.How does Aetrix verify that ADA4062-2ARMZ-R7 is sourced from the original manufacturer or authorized distributors?
All ADA4062-2ARMZ-R7 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-R7 meets industry standards.
7.What is the process for return or replacement of ADA4062-2ARMZ-R7?
All ADA4062-2ARMZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADA4062-2ARMZ-R7, 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-R7 part is unused and in its original packaging.
Return procedure for ADA4062-2ARMZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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