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Analog Devices Inc. ADA4062-2ACPZ-R7
- Part No.:
- ADA4062-2ACPZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-UFQFN, CSP
- Datasheet:
-
ADA4062-2ACPZ-R7.pdf
- Description:
- IC OPAMP JFET 2 CIRCUIT 10LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:5,677
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Product details
Overview
ADA4062-2ACPZ-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), and 165 μA typical supply current per amplifier, operating from ±5 V to ±15 V supplies across −40°C to +125°C. It is used in body probe electronics and micropower instrumentation amplifiers where ultralow input current and rail-to-rail output swing are critical.
For engineers reviewing the ADA4062-2ACPZ-R7 datasheet, ADA4062-2ACPZ-R7 pinout, ADA4062-2ACPZ-R7 application, or ADA4062-2ACPZ-R7 equivalent, key selection criteria include confirmed 10-lead LFCSP package dimensions, JFET-input bias current ≤50 pA at 25°C, CMRR ≥90 dB, unity-gain stability, and −40°C to +125°C extended industrial temperature operation.
Technical Context
The ADA4062-2ACPZ-R7 implements a JFET-input front-end with 10 TΩ typical input resistance and 5 μV/°C typical offset drift, enabling high-impedance sensor interfacing without significant error accumulation over temperature. Its 3.3 V/μs slew rate and 1.4 MHz gain bandwidth support stable closed-loop operation in active filters and integrators.
It features rail-to-rail output swing (within 1.5 V of rails at ±15 V), channel separation of 135 dB at 1 kHz, and phase reversal immunity up to +15 V input-critical for high-side current sensing and notch filter buffering where input common-mode range extends to the positive supply rail.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Bias Current | 50 pA max - enables use with >1 MΩ source impedances without significant DC error |
| Offset Voltage (B Grade) | 1.5 mV max - ensures <0.01% gain error in precision buffer or instrumentation amp stages |
| Supply Current per Amp | 165 μA typical - supports battery-powered or energy-constrained systems with dual-channel operation |
| CMRR | 90 dB typical - rejects common-mode noise in differential-sensing applications like current shunt monitoring |
| Slew Rate | 3.3 V/μs typical - sustains fidelity for 10 V step signals settling within 3.5 μs to 0.1% |
| Operating Temp Range | −40°C to +125°C - qualified for under-hood automotive, industrial control, and downhole instrumentation |
| Gain Bandwidth Product | 1.4 MHz - supports stable unity-gain and moderate-gain active filter designs up to ~100 kHz |
Pinout & Package
ADA4062-2ACPZ-R7 is housed in a 10-lead LFCSP (1.6 mm × 1.3 mm × 0.55 mm) with exposed pad connected to V– per datasheet recommendation. Pin 1 is marked by dot; pins 1–5 and 7–10 are functional; pin 6 is NC (no connect).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | +IN A | Noninverting input of Amplifier A - high-impedance node for sensor or reference signal routing |
| 2 | –IN A | Inverting input of Amplifier A - connects to feedback network or summing junction |
| 3 | OUT A | Output of Amplifier A - drives loads up to 10 kΩ with rail-to-rail swing |
| 4 | V+ | Positive supply rail - accepts ±5 V to ±15 V dual supply |
| 5 | NC | No connect - must be left floating or grounded only if required by layout EMI mitigation |
| 7 | +IN B | Noninverting input of Amplifier B - independent high-Z input for second signal path |
| 8 | –IN B | Inverting input of Amplifier B - supports dual-channel instrumentation or filtering |
| 9 | OUT B | Output of Amplifier B - electrically isolated from OUT A; 135 dB channel separation at 1 kHz |
| 10 | V– | Negative supply rail - exposed thermal pad must be soldered to PCB ground plane for thermal and electrical integrity |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow Input Bias Current | 2 pA typical - preserves accuracy in photodiode, piezoelectric, or high-value RC networks |
| Extended Temperature Operation | −40°C to +125°C - eliminates derating for industrial motor controls and power converter monitoring |
| Rail-to-Rail Output | Swings within 1.5 V of ±15 V rails - maximizes dynamic range in single-supply derived bipolar systems |
| Phase Reversal Immunity | No polarity inversion up to +15 V input - simplifies high-side sensing without external clamping diodes |
| Unity-Gain Stable | Stable at AV = 1 with 100 pF load - enables direct use in voltage followers without compensation |
Applications
| Body Probe Electronics | Active Filters |
|---|---|
Use Scenario: Amplifying microvolt-level bioelectric signals (e.g., EEG, ECG) from dry or gel electrodes with minimal loading. IC Role / Device Role / Timing Role: Dual-channel input buffer and first-stage gain stage, leveraging matched amplifiers in one package for common-mode rejection. Use Value: 50 pA max input bias current prevents electrode polarization; 5 μV/°C drift maintains calibration stability across patient temperature variations. | Use Scenario: Implementing 2nd-order Sallen-Key or multiple-feedback low-pass/high-pass filters in data acquisition front-ends. IC Role / Device Role / Timing Role: Active gain element with 1.4 MHz GBP and 78° phase margin, configured for precise cutoff frequency and Q-factor control. Use Value: Unity-gain stability and 3.3 V/μs slew rate ensure monotonic step response without peaking; low supply current enables multi-filter banks in portable instruments. |
| Industrial Process Controls | Power Controls and Monitoring |
Use Scenario: Conditioning 4–20 mA loop sensor outputs and driving analog inputs of PLC ADCs in factory automation systems. IC Role / Device Role / Timing Role: Precision I/V converter and level-shifting amplifier, operating across full industrial temperature range. Use Value: 165 μA supply current reduces self-heating in densely packed I/O modules; 90 dB CMRR rejects 50/60 Hz line noise in noisy plant environments. | Use Scenario: High-side current sensing in DC-DC converters or battery management systems using milliohm shunts. IC Role / Device Role / Timing Role: Differential amplifier with input common-mode range extending to +15 V, enabling direct connection to shunt placed on high-side rail. Use Value: No phase reversal up to +15 V input eliminates need for protection circuitry; 135 dB channel separation prevents crosstalk between voltage and current measurement paths. |
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 |
|---|---|---|---|
| AD8642ARMZ | Faster slew rate (12 V/μs), higher supply current (1.2 mA), CMOS input (1 pA bias), but narrower temp range (−40°C to +125°C same) | Better for high-speed active filters; less suitable for micropower systems due to 7× higher quiescent current | Select AD8642ARMZ when bandwidth >10 MHz is needed and power budget allows >1 mA per amp |
| OPA2140IDR | Lower offset (125 μV max), lower noise (5.1 nV/√Hz), rail-to-rail output, but higher supply current (1.8 mA) and no LFCSP option | Preferred for ultra-low-noise precision instrumentation; unsuitable for space-constrained LFCSP layouts | Choose OPA2140IDR when sub-200 μV offset and <6 nV/√Hz noise are mandatory, and SOIC-8 is acceptable |
Compared with AD8642ARMZ and OPA2140IDR, ADA4062-2ACPZ-R7 uniquely balances ultralow bias current (≤50 pA), micropower operation (165 μA), and 10-lead LFCSP packaging-making it optimal for miniaturized, battery-operated, high-impedance sensor interfaces where thermal and layout constraints preclude larger packages or higher current solutions.
Availability
ADA4062-2ACPZ-R7 is available at Aetrix Electronics and suitable for industrial process controls, body probe electronics, and power controls and monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADA4062-2ACPZ-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 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 was designed specifically for ultralow-power, high-precision signal conditioning in harsh environments-emphasizing JFET-input performance, extended temperature operation, and robustness in sensor interface and instrumentation applications.
FAQ
What is the maximum input common-mode voltage for ADA4062-2ACPZ-R7?
The ADA4062-2ACPZ-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, a key advantage over many competing op amps. The device remains fully functional and linear within this range across its full −40°C to +125°C operating temperature span.
Does ADA4062-2ACPZ-R7 require external compensation for unity-gain stability?
No, ADA4062-2ACPZ-R7 is internally compensated and unity-gain stable. It maintains phase margin of 78° at unity gain with a 10 kΩ load and 100 pF capacitive load, as verified in the datasheet's Typical Performance Characteristics. This eliminates the need for external compensation components in voltage follower or gain-of-one configurations.
What is the thermal pad connection requirement for ADA4062-2ACPZ-R7?
The exposed thermal pad on ADA4062-2ACPZ-R7 must be soldered to the PCB's V– (negative supply) plane. Per the datasheet's Figure 2 and Notes section, this connection is required for both thermal dissipation and electrical stability. Failure to connect the pad may result in degraded PSRR, increased junction temperature, and potential parametric shift over time.
Can ADA4062-2ACPZ-R7 drive a 100 pF capacitive load without oscillation?
Yes, ADA4062-2ACPZ-R7 is characterized to drive 100 pF loads stably at unity gain, with overshoot under 10% and settling to 0.1% in 3.5 μs. Figure 31 and Figure 34 in the datasheet confirm stable small-signal transient response up to 10,000 pF, though layout best practices (short traces, local bypassing) are recommended to maintain stability in production designs using ADA4062-2ACPZ-R7.
Is ADA4062-2ACPZ-R7 pin-compatible with other ADA4062-2 variants?
No-ADA4062-2ACPZ-R7 uses a 10-lead LFCSP package (CP-10-10), while SOIC-8 (R-8) and MSOP-8 (RM-8) variants have different pin counts and layouts. Pin mapping differs significantly: the LFCSP includes dedicated NC and V+ pins not present in SOIC/MSOP, and the exposed pad requires unique PCB footprint design. Migration requires board redesign, not drop-in replacement.
ADA4062-2ACPZ-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-UFQFN, CSP
- 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:
- 10-LFCSP-UQ (1.6x1.3)
ADA4062-2ACPZ-R7 FAQ
1.How can I place an order for ADA4062-2ACPZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4062-2ACPZ-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 ADA4062-2ACPZ-R7 reliable?
The price and inventory of ADA4062-2ACPZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4062-2ACPZ-R7 is usually 5 days.
3.What payment methods are accepted for ADA4062-2ACPZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4062-2ACPZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4062-2ACPZ-R7?
ADA4062-2ACPZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4062-2ACPZ-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 ADA4062-2ACPZ-R7?
For technical support, including ADA4062-2ACPZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4062-2ACPZ-R7 requirements.
6.How does Aetrix verify that ADA4062-2ACPZ-R7 is sourced from the original manufacturer or authorized distributors?
All ADA4062-2ACPZ-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 ADA4062-2ACPZ-R7 meets industry standards.
7.What is the process for return or replacement of ADA4062-2ACPZ-R7?
All ADA4062-2ACPZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADA4062-2ACPZ-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 ADA4062-2ACPZ-R7 part is unused and in its original packaging.
Return procedure for ADA4062-2ACPZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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