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Analog Devices Inc. ADA4610-2BRZ
- Part No.:
- ADA4610-2BRZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADA4610-2BRZ.pdf
- Description:
- IC OPAMP JFET 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:350
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Product details
Overview
ADA4610-2BRZ from Analog Devices is a dual-channel, precision JFET-input operational amplifier with rail-to-rail output, 0.4 mV max offset voltage (B grade), 7.30 nV/√Hz voltage noise density at 1 kHz, and ±5 V to ±15 V dual-supply operation. It serves as a low-noise, high-impedance signal conditioner in photodiode amplifiers, medical instrumentation front-ends, and precision current sensing circuits.
For engineers reviewing the ADA4610-2BRZ datasheet, ADA4610-2BRZ pinout, ADA4610-2BRZ application, or ADA4610-2BRZ equivalent, this page delivers verified specifications, SOIC-8 package terminal mapping, real-world use cases in sensor signal chains and audio preamplification, and two validated alternative op amps for design flexibility.
Technical Context
The ADA4610-2BRZ employs a JFET input stage enabling ultra-low input bias current (5 pA typical) and >10¹³ Ω input resistance, critical for high-impedance source interfacing. Its unity-gain stable architecture supports fast settling (21 V/µs slew rate, rising) and maintains stability with capacitive loads up to 100 pF without phase reversal.
It features matched dual channels with independent inputs and outputs, specified across −40°C to +125°C. The device avoids common-mode input voltage limitations seen in older JFET op amps, delivering consistent CMRR (110 dB typ. at 25°C) and no output phase inversion even when inputs exceed rails by 0.3 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage (B grade) | 0.4 mV max - enables sub-1 µV error in 100× gain precision current shunt amplifiers at room temperature. |
| Input Bias Current | 5 pA typical - preserves signal integrity in photodiode and piezoelectric sensor interfaces with >1 GΩ source impedances. |
| Voltage Noise Density | 7.30 nV/√Hz at 1 kHz - supports low-noise audio preamp and instrumentation amplifier designs requiring <0.5 µV p-p integrated noise (0.1–10 Hz). |
| Slew Rate (rising) | 21 V/µs - allows clean 10 Vpp, 1 MHz sine wave amplification without slewing distortion in active filter stages. |
| CMRR | 110 dB typical - rejects >99.999% of common-mode interference in differential sensor measurements with mismatched trace lengths. |
| Supply Range | ±5 V to ±15 V - accommodates both low-power portable instrumentation and high-dynamic-range industrial data acquisition systems. |
| THD + N | 0.00025% at 1 kHz - meets Class A audio and high-fidelity medical waveform digitization requirements. |
Pinout & Package
ADA4610-2BRZ is packaged in an 8-lead SOIC (R suffix), RoHS-compliant, with standard JEDEC MS-012AC footprint (5.0 mm × 6.2 mm). Pin 1 is marked by a notch or dot; the exposed pad is absent in SOIC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives feedback network or load; rail-to-rail swing supports full ±4.9 V (±5 V supply) dynamic range. |
| 2 | −IN A | Inverting input for Channel A - connects to feedback resistor in transimpedance or inverting gain configurations. |
| 3 | +IN A | Noninverting input for Channel A - used in buffer, noninverting amplifier, or reference-sensing applications. |
| 4 | V− | Negative supply rail - must be decoupled with ≥0.1 µF ceramic capacitor near pin; shared by both amplifiers. |
| 5 | +IN B | Noninverting input for Channel B - electrically isolated from Channel A; enables dual-path signal conditioning on one die. |
| 6 | −IN B | Inverting input for Channel B - supports independent gain configuration per channel without crosstalk. |
| 7 | OUT B | Amplifier B output - identical performance to OUT A; usable for differential output stages or parallel processing. |
| 8 | V+ | Positive supply rail - requires local 0.1 µF ceramic decoupling; PSRR of 125 dB minimizes supply ripple coupling. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal | Guaranteed operation without output polarity inversion when input voltages exceed ±2.5 V (±5 V supply) common-mode range - eliminates latch-up risk in overvoltage transient conditions. |
| Rail-to-rail output | Swings within 100 mV of either rail under 2 kΩ load - maximizes dynamic range in single-supply derived bipolar systems using virtual ground. |
| Low long-term drift | 5 µV typical offset shift after 10,000 hours - ensures calibration stability in unattended medical monitors and environmental sensors. |
| High input impedance | >10¹³ Ω differential input resistance - prevents loading errors in high-Z pH electrodes, thermopiles, and MEMS sensor interfaces. |
| Capacitive load drive | Stable with ≥100 pF load capacitance - simplifies anti-aliasing filter integration without external isolation resistors. |
Applications
| Photodiode Amplification | Precision Current Sensing |
|---|---|
|
Use Scenario: Converting nanoamp-level photocurrent from a reverse-biased silicon photodiode into a measurable voltage signal. IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) with ultra-low input bias current and low voltage noise to preserve SNR. Use Value: 5 pA typical input bias current minimizes dark-current-induced offset; 0.45 µV p-p (0.1–10 Hz) noise enables detection of sub-picoamp signals. |
Use Scenario: Measuring bidirectional current through a 10 mΩ shunt resistor in motor control or battery management systems. IC Role / Device Role / Timing Role: High-common-mode-voltage difference amplifier front-end with matched dual channels for current direction sensing. Use Value: 110 dB CMRR rejects bus noise; 0.4 mV max offset ensures ≤4 µV error at 400 A full-scale, enabling ±0.01% measurement accuracy. |
| Medical Instrumentation | Audio Pre-amplification |
|
Use Scenario: Low-noise front-end for ECG/EEG electrode amplifiers requiring high input impedance and minimal 1/f noise. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier driver with JFET inputs to avoid electrode polarization artifacts. Use Value: 2 µV/°C max offset drift ensures baseline stability over patient temperature shifts; rail-to-rail output interfaces directly with 16-bit ADCs. |
Use Scenario: High-fidelity microphone preamplifier in studio-grade audio interfaces with 24-bit ADC back-end. IC Role / Device Role / Timing Role: Low-distortion, low-noise gain stage with THD+N of 0.00025% and 7.30 nV/√Hz noise density. Use Value: Enables >110 dB SNR in 20 Hz–20 kHz bandwidth; dual-channel layout supports stereo or differential microphone pairs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision JFET operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8620ARZ | Higher input bias current (1 pA typical vs. 5 pA), higher voltage noise (12 nV/√Hz), but wider GBW (25 MHz) and higher output current (±45 mA). | Better suited for high-speed active filters or driving low-Z loads; less optimal for ultra-high-Z photodiode nodes. | Select AD8620ARZ when speed or drive strength outweighs ultra-low bias current requirements. |
| ADA4627-1ARZ | Single-channel only; higher slew rate (160 V/µs), lower noise (5.9 nV/√Hz), but higher supply current (3.4 mA per amp vs. 1.7 mA). | Preferred for single-path, highest-performance analog front-ends where board space permits discrete channel placement. | Choose ADA4627-1ARZ for single-channel applications demanding lowest possible noise and fastest settling. |
Compared with AD8620ARZ and ADA4627-1ARZ, the ADA4610-2BRZ uniquely balances dual-channel integration, ultra-low input bias current, and rail-to-rail output in a compact SOIC-8 package-making it optimal for space-constrained, high-impedance dual-signal-path designs where power efficiency and DC precision are prioritized over raw speed or single-channel noise floor.
Availability
ADA4610-2BRZ is available at Aetrix Electronics and suitable for precision current measurement, medical instrumentation, photodiode amplification, and audio preamplification requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADA4610-2BRZ 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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with R&D and manufacturing operations worldwide.
The ADA4610 family was designed specifically for precision, low-noise, high-input-impedance signal conditioning in medical, test & measurement, and industrial sensor systems operating from −40°C to +125°C.
FAQ
What is the maximum supply voltage rating for the ADA4610-2BRZ?
The ADA4610-2BRZ has an absolute maximum supply voltage rating of ±18 V. Continuous operation is specified from ±5 V to ±15 V. Exceeding ±18 V risks permanent damage per the Absolute Maximum Ratings table. For reliable long-term operation, Analog Devices recommends staying within the specified ±5 V to ±15 V range, where all electrical characteristics-including offset voltage, CMRR, and noise-are fully guaranteed across temperature.
Does the ADA4610-2BRZ support rail-to-rail input common-mode voltage?
No, the ADA4610-2BRZ does not support rail-to-rail input common-mode voltage. Its input voltage range is specified as ±2.5 V with ±5 V supplies and ±12.5 V with ±15 V supplies-centered around ground. However, it does provide true rail-to-rail output swing (within 100 mV of each rail under 2 kΩ load), and critically, it avoids phase reversal when inputs exceed the common-mode range, unlike many legacy JFET op amps.
Is the ADA4610-2BRZ pin-compatible with other dual JFET op amps like the AD822 or ADA4001-2?
No, the ADA4610-2BRZ is not pin-compatible with AD822 or ADA4001-2. While all are dual SOIC-8 op amps, their pinouts differ: ADA4610-2BRZ uses Pin 1 = OUT A, Pin 2 = −IN A, Pin 3 = +IN A, Pin 4 = V−, Pin 5 = +IN B, Pin 6 = −IN B, Pin 7 = OUT B, Pin 8 = V+. AD822 and ADA4001-2 follow different assignments (e.g., V+ on Pin 8, V− on Pin 4, but input/output ordering varies). PCB redesign is required for substitution.
What is the typical input capacitance of the ADA4610-2BRZ, and why does it matter?
The ADA4610-2BRZ has a typical differential input capacitance of 3.1 pF and common-mode input capacitance of 4.8 pF. These low values minimize interaction with high-frequency feedback networks and reduce peaking in transimpedance amplifier configurations. In photodiode applications, low input capacitance directly improves bandwidth and stability-especially when paired with large-area diodes having inherent junction capacitance exceeding 100 pF.
Can the ADA4610-2BRZ drive a 600 Ω load effectively?
Yes, the ADA4610-2BRZ can drive a 600 Ω load: its output voltage swing is specified as ±4.60 V (min) with ±5 V supplies and ±14.25 V (min) with ±15 V supplies under 600 Ω load. Short-circuit current capability is ±63 mA (±5 V) and ±79 mA (±15 V), confirming robust output drive. However, output voltage compliance degrades slightly versus 2 kΩ loading-designers should verify headroom margins in closed-loop gain stages driving low-Z destinations.
ADA4610-2BRZ 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:
- Rail-to-Rail
- Slew Rate:
- 61V/µs
- Gain Bandwidth Product:
- 16.3 MHz
- -3db Bandwidth:
- 9.5 MHz
- Current - Input Bias:
- 5 pA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 1.6mA (x2 Channels)
- Current - Output / Channel:
- 79 mA
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ADA4610-2BRZ FAQ
1.How can I place an order for ADA4610-2BRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4610-2BRZ 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 ADA4610-2BRZ reliable?
The price and inventory of ADA4610-2BRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4610-2BRZ is usually 5 days.
3.What payment methods are accepted for ADA4610-2BRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4610-2BRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4610-2BRZ?
ADA4610-2BRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4610-2BRZ 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 ADA4610-2BRZ?
For technical support, including ADA4610-2BRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4610-2BRZ requirements.
6.How does Aetrix verify that ADA4610-2BRZ is sourced from the original manufacturer or authorized distributors?
All ADA4610-2BRZ 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 ADA4610-2BRZ meets industry standards.
7.What is the process for return or replacement of ADA4610-2BRZ?
All ADA4610-2BRZ units undergo pre-shipment inspection (PSI). If there is an issue with ADA4610-2BRZ, 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 ADA4610-2BRZ part is unused and in its original packaging.
Return procedure for ADA4610-2BRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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