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Analog Devices Inc. ADA4610-2ARZ-R7
- Part No.:
- ADA4610-2ARZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADA4610-2ARZ-R7.pdf
- Description:
- IC OPAMP JFET 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:997
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Product details
Overview
ADA4610-2ARZ-R7 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 instrument front-ends, and precision current sensing circuits.
For engineers reviewing the ADA4610-2ARZ-R7 datasheet, ADA4610-2ARZ-R7 pinout, ADA4610-2ARZ-R7 application, or ADA4610-2ARZ-R7 equivalent, this page delivers verified specifications, SOIC-8 package terminal mapping, real-world use cases in instrumentation and sensor interfaces, and two validated alternative parts for design flexibility.
Technical Context
The ADA4610-2ARZ-R7 implements a matched dual JFET input stage with >10¹³ Ω input resistance, enabling ultra-low input bias current (5 pA typical) and minimal loading of high-impedance sources. Its unity-gain stable architecture supports fast settling (≤10 µs for large-signal step) and maintains stability with capacitive loads up to 100 pF without external compensation.
It features no phase reversal under overvoltage conditions, a critical reliability attribute for sensor interfaces where input transients exceed rails. The device operates across −40°C to +125°C and achieves 9.3 MHz unity-gain crossover with 61° phase margin at ±5 V supply.
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. |
| Input Bias Current | 5 pA typical - preserves signal integrity in photodiode and piezoelectric sensor circuits. |
| Voltage Noise Density | 7.30 nV/√Hz at 1 kHz - supports low-noise audio preamplification and EEG signal conditioning. |
| Rail-to-Rail Output Swing | ±4.90 V at ±5 V supply (RL = 2 kΩ) - maximizes dynamic range in single-supply-compatible designs. |
| Gain Bandwidth Product | 15.4 MHz (±5 V) - allows stable 10× closed-loop gain up to ~1.5 MHz for anti-aliasing filters. |
| THD + N | 0.00025% at 1 kHz - meets high-fidelity audio and precision DAC buffer requirements. |
| Supply Range | ±5 V to ±15 V - accommodates both low-power portable instrumentation and industrial ±12 V systems. |
Pinout & Package
ADA4610-2ARZ-R7 is packaged in an 8-lead SOIC (R suffix) with standard JEDEC MS-012AC footprint and 1.27 mm pitch. The exposed pad is not present in this variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives feedback network or next-stage load; rail-to-rail swing capability reduces headroom loss. |
| 2 | −IN A | Inverting input of Channel A - connects to summing node or feedback path; high CMRR (110 dB typ.) rejects common-mode interference. |
| 3 | +IN A | Noninverting input of Channel A - interfaces directly with high-Z sensors; input capacitance (3.1 pF diff) minimizes resonance with stray wiring. |
| 4 | V− | Negative supply rail - must be decoupled locally; shared by both amplifiers for matched thermal drift performance. |
| 5 | +IN B | Noninverting input of Channel B - electrically isolated from Channel A; enables dual-path signal processing without crosstalk. |
| 6 | −IN B | Inverting input of Channel B - supports independent gain configuration per channel; identical bias current spec ensures matched DC errors. |
| 7 | OUT B | Amplifier B output - usable for differential output stages or separate signal chains; same slew rate (21 V/µs rising) as Channel A. |
| 8 | V+ | Positive supply rail - supplies both channels; PSRR of 125 dB (typ.) suppresses supply ripple in sensitive analog sections. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal | Prevents catastrophic output latch-up when input exceeds common-mode range - essential for robust sensor interface protection. |
| Low long-term drift | 5 µV typical (10,000 hrs) - ensures calibration stability in medical devices requiring multi-year accuracy retention. |
| Temperature hysteresis | 8 µV typical - minimizes repeatability error during thermal cycling in environmental test equipment. |
| Stable with capacitive loads | Remains unity-gain stable driving ≥100 pF - eliminates need for isolation resistors in ADC driver or filter applications. |
| High input resistance | >10¹³ Ω - avoids signal attenuation in pH electrode and electret microphone preamp circuits. |
Applications
| Photodiode Amplifier | Precision Current Measurement |
|---|---|
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 with virtual ground input and rail-to-rail output swing. Use Value: 5 pA typical input bias current prevents diode leakage from dominating signal current; 0.45 µV p-p 0.1–10 Hz noise enables detection of weak optical signals. |
Use Scenario: Measuring load current via voltage drop across a 0.1 Ω shunt resistor in a motor control feedback loop. IC Role / Device Role / Timing Role: High-side or low-side current sense amplifier with precision gain and low offset. Use Value: 0.4 mV max offset voltage limits measurement error to ≤4 µA at 10 A full scale; rail-to-rail output maximizes ADC utilization. |
| Medical Instrument Front-End | Audio Preamp |
Use Scenario: Conditioning biopotential signals (e.g., ECG, EEG) with high common-mode rejection and minimal added noise. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier input buffer with ultra-high input impedance. Use Value: 110 dB CMRR (typ.) suppresses 50/60 Hz mains interference; 7.30 nV/√Hz noise density preserves microvolt-level neural signals. |
Use Scenario: Low-distortion preamplification of line-level audio signals before ADC conversion in studio-grade recorders. IC Role / Device Role / Timing Role: Unity-gain stable voltage follower or non-inverting gain stage. Use Value: 0.00025% THD+N ensures transparent signal reproduction; rail-to-rail output supports full-scale 2 Vrms operation on ±5 V supplies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision JFET op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8620ARMZ | Higher supply current (2.5 mA vs. 1.7 mA), higher offset drift (10 µV/°C vs. 2 µV/°C B grade), same SOIC-8 package. | Better drive capability (±30 mA) but less suitable for battery-powered low-drift applications. | Choose AD8620ARMZ when higher output current is required and thermal drift budget allows. |
| ADA4625-1ARDZ | Single-channel only, lower noise (4.2 nV/√Hz), faster slew rate (28 V/µs), same B-grade offset (0.4 mV), LFCSP-8 package. | Not pin-compatible; requires PCB redesign but offers superior noise performance for critical sensor nodes. | Choose ADA4625-1ARDZ when single-channel, lowest-noise performance justifies layout change. |
Compared with AD8620ARMZ and ADA4625-1ARDZ, the ADA4610-2ARZ-R7 uniquely balances dual-channel integration, ultra-low bias current, and industry-leading offset stability in SOIC-8 - making it optimal for space-constrained, high-impedance dual-signal-path designs where long-term calibration integrity is mandatory.
Availability
ADA4610-2ARZ-R7 is available at Aetrix Electronics and suitable for precision current measurement, photodiode amplification, and medical instrument front-end applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADA4610-2ARZ-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 Norwood, MA.
The ADA4610 family targets precision analog signal conditioning in demanding environments - engineered for low-noise, low-drift, high-input-impedance applications including medical diagnostics, test equipment, and scientific instrumentation.
FAQ
What is the maximum operating temperature range for the ADA4610-2ARZ-R7?
The ADA4610-2ARZ-R7 is specified for continuous operation from −40°C to +125°C, meeting extended industrial temperature requirements. This range is validated across all electrical parameters in the datasheet, including offset voltage drift, CMRR, and output swing, ensuring reliability in automotive under-hood or industrial control cabinet environments where thermal stress is significant. The ADA4610-2ARZ-R7 maintains its 0.4 mV max offset voltage and 7.30 nV/√Hz noise density across this full range.
Does the ADA4610-2ARZ-R7 require external compensation for unity-gain stability?
No, the ADA4610-2ARZ-R7 is internally compensated and unity-gain stable without external components. Its phase margin is guaranteed at 61° (±5 V) and 66° (±15 V) under standard test conditions, supporting direct use in voltage followers, non-inverting amplifiers, and active filters. This eliminates the need for compensation networks that add cost, board area, and potential instability in high-frequency layouts - a key advantage over older JFET op amps like the TL072.
Is the ADA4610-2ARZ-R7 pin-compatible with other dual JFET op amps in SOIC-8 packages?
The ADA4610-2ARZ-R7 uses the industry-standard SOIC-8 pinout defined in Figure 4 of its datasheet: 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+. While this matches the generic dual op amp pinout, it is not pin-compatible with legacy parts such as the TL072 or LF353 due to differences in internal architecture and biasing - always verify functional compatibility and perform bench validation before substitution. The ADA4610-2ARZ-R7 itself has no NC pins.
What is the typical input capacitance of the ADA4610-2ARZ-R7 and how does it affect high-frequency design?
The ADA4610-2ARZ-R7 exhibits 3.1 pF differential and 4.8 pF common-mode input capacitance, measured at VCM = 0 V. These values directly impact stability in high-speed transimpedance amplifiers: combined with photodiode junction capacitance, they set the dominant pole frequency. For example, with a 10 pF diode and 1 MΩ feedback resistor, the total input capacitance (~13 pF) yields a 12 kHz pole - requiring careful layout and possibly a small feedback capacitor (e.g., 0.3 pF) to maintain phase margin. This low capacitance enables bandwidths exceeding 10 MHz in optimized configurations.
How does the ADA4610-2ARZ-R7 handle input overvoltage conditions beyond the supply rails?
The ADA4610-2ARZ-R7 incorporates internal clamp diodes from each input to the supply rails, allowing safe operation with input voltages up to ±VS (±18 V absolute max). However, input current must be limited to ≤10 mA to prevent damage - typically achieved using series resistors. Crucially, unlike many JFET op amps, the ADA4610-2ARZ-R7 does not exhibit output phase reversal when inputs exceed the common-mode range, preventing erroneous signal inversion in fault conditions. This behavior is confirmed in the General Description and Applications Information sections of the Rev. I datasheet.
ADA4610-2ARZ-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 400 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
ADA4610-2ARZ-R7 FAQ
1.How can I place an order for ADA4610-2ARZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4610-2ARZ-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 ADA4610-2ARZ-R7 reliable?
The price and inventory of ADA4610-2ARZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4610-2ARZ-R7 is usually 5 days.
3.What payment methods are accepted for ADA4610-2ARZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4610-2ARZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4610-2ARZ-R7?
ADA4610-2ARZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4610-2ARZ-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 ADA4610-2ARZ-R7?
For technical support, including ADA4610-2ARZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4610-2ARZ-R7 requirements.
6.How does Aetrix verify that ADA4610-2ARZ-R7 is sourced from the original manufacturer or authorized distributors?
All ADA4610-2ARZ-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 ADA4610-2ARZ-R7 meets industry standards.
7.What is the process for return or replacement of ADA4610-2ARZ-R7?
All ADA4610-2ARZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADA4610-2ARZ-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 ADA4610-2ARZ-R7 part is unused and in its original packaging.
Return procedure for ADA4610-2ARZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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