My Inquiry
My Account
Analog Devices Inc. ADA4062-2BRZ
- Part No.:
- ADA4062-2BRZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADA4062-2BRZ.pdf
- Description:
- IC OPAMP JFET 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:145
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADA4062-2BRZ from Analog Devices is a dual JFET-input operational amplifier optimized for low-power, precision signal conditioning in industrial and instrumentation systems. It delivers 50 pA maximum input bias current, 1.5 mV maximum offset voltage (B grade, SOIC), 5 µV/°C typical offset drift, ±5 V to ±15 V dual-supply operation, and unity-gain stability - enabling high-impedance sensor interfacing and micropower active filtering.
For engineers reviewing the ADA4062-2BRZ datasheet, ADA4062-2BRZ pinout, ADA4062-2BRZ application, or ADA4062-2BRZ equivalent, this page provides verified specifications, SOIC-8 package details, real-world use cases in high-side sensing and notch filtering, and validated alternative options for design-in flexibility.
Technical Context
The ADA4062-2BRZ employs a JFET-input stage delivering ultra-low input bias current (2 pA typical) and high input resistance (10 TΩ), making it suitable for photodiode amplification and high-impedance source buffering. Its rail-to-rail output swing (±13.5 V / ±13.8 V at ±15 V supplies) and extended industrial temperature range (−40°C to +125°C) support robust operation in process control and power monitoring.
It features 1.4 MHz gain-bandwidth product, 78° phase margin, and 3.3 V/µs slew rate - sufficient for 60 Hz notch filter implementation and micropower instrumentation amplifier topologies. Channel separation of 135 dB at 1 kHz ensures minimal crosstalk in dual-channel signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Bias Current | 2 pA typical - enables use with >1 GΩ source impedances without significant error. |
| Offset Voltage (B Grade) | 1.5 mV max (SOIC) - supports accurate DC-coupled amplification in 12-bit+ data acquisition. |
| Offset Drift | 5 µV/°C typical - ensures <15 µV total drift over −40°C to +125°C, critical for uncalibrated systems. |
| Supply Current per Amp | 165 µA typical - allows dual-amplifier operation on <330 µA total, ideal for battery-powered sensors. |
| CMRR | 90 dB typical - rejects common-mode noise in noisy industrial environments (e.g., motor drives). |
| Gain Bandwidth Product | 1.4 MHz - sufficient for stable 60 Hz notch filters and anti-aliasing up to ~100 kHz. |
| Slew Rate | 3.3 V/µs - supports fast settling (<3.5 µs to 0.1%) for step inputs in control loops. |
Pinout & Package
ADA4062-2BRZ is supplied in an 8-lead narrow-body SOIC (R-8) package, RoHS-compliant and lead-free. The exposed pad is not present in this SOIC variant.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives loads up to 10 kΩ with rail-to-rail swing (±13.5 V typical). |
| 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 from −11.5 V to +15 V. |
| 4 | V– | Negative supply rail - must be established before input signals to prevent phase reversal. |
| 5 | +IN B | Non-inverting input of Amp B - electrically isolated from Amp A; shares same V–/V+ rails. |
| 6 | –IN B | Inverting input of Amp B - matched to –IN A for consistent CMRR and offset performance. |
| 7 | OUT B | Amplifier B output - independent channel with identical AC/DC specs to OUT A. |
| 8 | V+ | Positive supply rail - supports ±5 V to ±15 V operation; PSRR of 90 dB minimizes supply noise. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow Input Bias Current | 2 pA typical - preserves signal integrity when interfacing with piezoelectric sensors or pH electrodes. |
| B Grade Precision | 1.5 mV max VOS in SOIC - eliminates need for external trimming in cost-sensitive industrial transmitters. |
| Extended Temperature Range | −40°C to +125°C operation - qualified for under-hood automotive and factory-floor control modules. |
| Unity-Gain Stable | No external compensation required - simplifies layout and reduces BOM count in buffer applications. |
| High Channel Separation | 135 dB at 1 kHz - prevents inter-channel coupling in dual-sensor measurement systems (e.g., differential thermocouple pairs). |
Applications
| Power Monitoring | Active Filtering |
|---|---|
|
Use Scenario: High-side current sensing in 24 V industrial power supplies using a 0.1 Ω shunt resistor. IC Role / Device Role / Timing Role: Amplifies mV-level shunt voltage with input common-mode up to +24 V while rejecting supply ripple. Use Value: Enables accurate real-time load current measurement without ground-referenced sensing limitations. |
Use Scenario: 60 Hz notch filter for ECG front-end to suppress mains interference. IC Role / Device Role / Timing Role: Voltage follower buffer with twin-T network; leverages ultralow bias current to permit high-R/low-C component values. Use Value: Achieves >50 dB attenuation at 60 Hz while maintaining low THD+N (<0.001% at 1 kHz). |
| Industrial Process Control | Body Probe Electronics |
|
Use Scenario: Signal conditioning for 4–20 mA loop-powered transmitters in chemical plant analyzers. IC Role / Device Role / Timing Role: Dual-channel input buffer and differential amplifier stage; one amp buffers sensor, second forms instrumentation topology. Use Value: Delivers 100× gain with <330 µA total supply current and 135 dB channel separation for noise immunity. |
Use Scenario: Low-noise preamplification of thermistor or RTD signals in medical patient monitors. IC Role / Device Role / Timing Role: High-input-impedance buffer isolating fragile sensor elements from downstream ADC input capacitance. Use Value: Prevents loading errors and thermal EMF-induced drift due to 2 pA bias current and 5 µV/°C drift. |
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 | CMOS input (0.5 pA IB), lower VOS (125 µV max), but higher supply current (1.2 mA/amp) and narrower VCM range (to V+ − 1.2 V). | Better DC precision but unsuitable for high-side sensing near V+ or micropower designs. | Select AD8642ARZ only when sub-200 µV offset is mandatory and supply current is unconstrained. |
| TL072CDR | JFET input, 200 pA IB (typ), 10 mV VOS (max), 3.5 mA/amp supply, no extended temp rating (0°C to +70°C). | Lower cost but significantly higher drift (18 µV/°C), limited temp range, and inferior PSRR/CMRR. | Use TL072CDR only in non-critical commercial-grade audio or legacy designs where cost dominates. |
Compared with AD8642ARZ and TL072CDR, the ADA4062-2BRZ uniquely balances ultralow bias current, micropower consumption, extended temperature capability, and high-side input compatibility - making it the optimal choice for precision industrial sensing where all four attributes are simultaneously required.
Availability
ADA4062-2BRZ is available at Aetrix Electronics and suitable for industrial process controls, medical body probe electronics, and power monitoring systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADA4062-2BRZ 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 since 1965.
The ADA4062 family was designed specifically for low-power, high-precision instrumentation applications demanding ultralow input bias current, wide supply range, and robust operation from −40°C to +125°C.
FAQ
What is the maximum input common-mode voltage range for ADA4062-2BRZ?
The ADA4062-2BRZ supports an input common-mode voltage range from −11.5 V to +15 V when operated at ±15 V supplies. This allows direct high-side sensing up to the positive rail - a key advantage over many CMOS op amps that clamp below V+ - and is explicitly confirmed in Table 2 of the Rev. B datasheet under "Input Voltage Range".
Is ADA4062-2BRZ unity-gain stable?
Yes, the ADA4062-2BRZ is unity-gain stable without external compensation. This is stated in both the Features list ("Unity-gain stable") and General Description sections of the datasheet, and verified by phase margin measurements of 78° at AV = 1 in Figure 23 and Figure 26.
Does ADA4062-2BRZ exhibit phase reversal, and how is it mitigated?
The ADA4062-2BRZ does not phase-reverse when inputs exceed the common-mode range but remain within the supply rails (e.g., up to +15 V with ±15 V supplies). Phase reversal occurs only if inputs drop below −14.5 V. Mitigation is addressed in the Applications Information section (Page 16), recommending Schottky clamping diodes like IN5711 as shown in Figure 63.
What is the typical supply current per amplifier for ADA4062-2BRZ at ±15 V?
The typical supply current per amplifier for ADA4062-2BRZ is 165 µA at ±15 V and TA = 25°C, as specified in Table 2 under "Supply Current per Amplifier". Over temperature (−40°C to +125°C), it remains ≤260 µA, enabling reliable micropower system design.
Which package variant does ADA4062-2BRZ correspond to?
ADA4062-2BRZ is the 8-lead narrow-body SOIC_N (R-8) package variant, as confirmed in the Ordering Guide (Page 20) and Outline Dimensions (Figure 67). It carries the "B grade" specification (1.5 mV max VOS) and is rated for −40°C to +125°C operation.
ADA4062-2BRZ 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:
- 3.3V/µs
- Gain Bandwidth Product:
- 1.4 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 2 pA
- Voltage - Input Offset:
- 500 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-SOIC
ADA4062-2BRZ FAQ
1.How can I place an order for ADA4062-2BRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4062-2BRZ 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 ADA4062-2BRZ reliable?
The price and inventory of ADA4062-2BRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4062-2BRZ is usually 5 days.
3.What payment methods are accepted for ADA4062-2BRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4062-2BRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4062-2BRZ?
ADA4062-2BRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4062-2BRZ 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 ADA4062-2BRZ?
For technical support, including ADA4062-2BRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4062-2BRZ requirements.
6.How does Aetrix verify that ADA4062-2BRZ is sourced from the original manufacturer or authorized distributors?
All ADA4062-2BRZ 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 ADA4062-2BRZ meets industry standards.
7.What is the process for return or replacement of ADA4062-2BRZ?
All ADA4062-2BRZ units undergo pre-shipment inspection (PSI). If there is an issue with ADA4062-2BRZ, 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 ADA4062-2BRZ part is unused and in its original packaging.
Return procedure for ADA4062-2BRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADA4062-2BRZ Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
