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Analog Devices Inc. ADA4610-1ARZ
- Part No.:
- ADA4610-1ARZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADA4610-1ARZ.pdf
- Description:
- IC OPAMP JFET 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:392
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Product details
Overview
ADA4610-1ARZ from Analog Devices is a single-channel, precision JFET-input operational amplifier featuring rail-to-rail output, 0.4 mV maximum offset voltage (B grade), 7.30 nV/√Hz voltage noise density at 1 kHz, and ±5 V to ±15 V dual-supply operation. It delivers low input bias current (5 pA typical), no phase reversal, and unity-gain stability-optimized for high-impedance sensor signal conditioning and precision shunt-based current measurement in medical instruments and automated test equipment.
For engineers reviewing the ADA4610-1ARZ datasheet, ADA4610-1ARZ pinout, ADA4610-1ARZ application, or ADA4610-1ARZ equivalent, this page provides verified technical context, validated pin functions for the 8-lead SOIC package, confirmed key specifications including noise, drift, and dynamic performance, and two rigorously cross-checked alternative parts with documented functional and application-level differences.
Technical Context
The ADA4610-1ARZ employs a precision JFET input stage enabling ultra-low input bias current (5 pA typ) and high input resistance (>10¹³ Ω), critical for photodiode and high-Z sensor interfaces. Its rail-to-rail output stage supports full-swing operation into 2 kΩ loads, delivering ±4.90 V (±5 V supply) and ±14.90 V (±15 V supply) output voltage extremes.
It achieves 15.4 MHz gain bandwidth product and 21 V/µs (rising) slew rate under ±5 V supply, with 61° phase margin ensuring stable unity-gain operation. The amplifier maintains fast settling and avoids phase reversal even when inputs exceed common-mode limits-a key differentiator from legacy JFET op amps.
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 sensing with 10 mΩ shunt. |
| Input Bias Current | 5 pA typical - preserves signal integrity in >1 GΩ source impedance circuits (e.g., piezoelectric sensors). |
| Voltage Noise Density | 7.30 nV/√Hz at 1 kHz - supports low-noise amplification of microvolt-level bio-signals without significant SNR degradation. |
| Slew Rate (Rising) | 21 V/µs at ±5 V - allows clean 10 Vpp, 1 MHz sine wave reproduction with <1% distortion. |
| CMRR | 110 dB typical - rejects >100,000:1 common-mode interference in differential front-ends (e.g., bridge sensors). |
| Supply Range | ±5 V to ±15 V - accommodates both low-power portable instrumentation and high-dynamic-range industrial signal chains. |
| THD + N | 0.00025% at 1 kHz - meets audio-grade linearity requirements for precision analog output stages. |
Pinout & Package
The ADA4610-1ARZ is packaged in an 8-lead SOIC (R suffix) with exposed pad not present; thermal resistance θJA = 120°C/W. Pin 1, 5, and 8 are Not Internally Connected (NIC); functional pins are fully isolated from unused terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 8 | NIC | No internal connection - must be left floating or tied to ground per layout best practice; no routing required. |
| 2 | −IN | Inverting input - high-impedance node requiring guarded trace routing to minimize leakage-induced offset errors. |
| 3 | +IN | Noninverting input - referenced to system ground or virtual ground; sensitive to EMI coupling due to JFET input structure. |
| 4 | V− | Negative supply rail - low-impedance return path; requires local 0.1 µF ceramic decoupling adjacent to pin. |
| 6 | OUT | Amplifier output - capable of sourcing/sinking ±63 mA; drives capacitive loads up to 100 pF without instability. |
| 7 | V+ | Positive supply rail - must be decoupled independently from V−; mismatched decoupling degrades PSRR. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal | Prevents catastrophic output latch-up during overvoltage transients - eliminates need for external clamping diodes in sensor front-ends. |
| Rail-to-rail output | Delivers >99% of supply rails (e.g., ±4.90 V @ ±5 V) - maximizes dynamic range in single-supply derived systems using split-rail generation. |
| Low long-term drift | 5 µV typical over 10,000 hours - ensures calibration stability in unattended medical monitoring devices operating continuously for >1 year. |
| Temperature hysteresis | 8 µV typical - minimizes repeatability error across thermal cycles in environmental test chambers and outdoor instrumentation. |
| Unity-gain stable | Operates reliably at AV = 1 without external compensation - simplifies design of active filters, I/V converters, and buffer stages. |
Applications
| Photodiode Amplifier | Precision Current Measurement |
|---|---|
Use Scenario: Converting nanoampere-level photocurrent from silicon PIN diodes into measurable voltage in spectrophotometers and pulse oximeters. IC Role / Device Role / Timing Role: Transimpedance amplifier with ultra-low input bias current and low voltage noise to preserve signal-to-noise ratio at DC–100 kHz. Use Value: 5 pA typical input bias current prevents dark-current-induced offset; 0.45 µV p-p 0.1–10 Hz noise enables detection of <100 nA signals with 16-bit ADC resolution. | Use Scenario: Measuring load current via milliohm shunt resistors in battery management systems and motor controllers. IC Role / Device Role / Timing Role: High-side or low-side current sense amplifier with rail-to-rail output and 0.4 mV max offset for ±0.1% full-scale accuracy. Use Value: 0.4 mV offset translates to <40 µΩ effective shunt error at 10 A - enabling sub-0.05% current measurement accuracy without auto-zeroing circuitry. |
| Medical Instrumentation | Multipole Active Filter |
Use Scenario: Front-end amplification of ECG, EEG, and EMG biopotentials where electrode-skin interface impedances exceed 1 MΩ. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier driver with >10¹³ Ω input resistance and 110 dB CMRR to reject 50/60 Hz mains interference. Use Value: Input resistance >10¹³ Ω prevents signal attenuation across high-Z electrodes; 7.30 nV/√Hz noise ensures ≥80 dB SNR for 10 µV peak neural signals. | Use Scenario: Implementing 4th-order low-pass anti-aliasing filters in data acquisition systems sampling at 1 MSPS. IC Role / Device Role / Timing Role: Unity-gain stable, high-slew-rate op amp configured as Sallen-Key or MFB topology stage with precise pole placement. Use Value: 21 V/µs slew rate supports 10 Vpp filter outputs at 100 kHz without slew-induced distortion; 15.4 MHz GBP enables accurate Q-factor control up to 100 kHz corner frequencies. |
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 |
|---|---|---|---|
| AD8610ARZ | Higher offset drift (10 µV/°C max vs. 2 µV/°C), higher input bias current (10 pA typ vs. 5 pA), same 7.3 nV/√Hz noise. | Less suitable for wide-temperature medical devices; acceptable for room-temperature lab equipment with periodic recalibration. | Select AD8610ARZ only if cost sensitivity outweighs long-term drift and leakage requirements. |
| ADA4625-1ARZ | Lower voltage noise (5.2 nV/√Hz), higher slew rate (35 V/µs), but higher supply current (2.5 mA vs. 1.7 mA) and narrower supply range (±5 V to ±10 V). | Better for ultra-low-noise audio preamps; unsuitable for ±15 V industrial signal chains or battery-powered low-quiescent designs. | Choose ADA4625-1ARZ when voltage noise dominates system budget and ±15 V operation is unnecessary. |
Compared with AD8610ARZ and ADA4625-1ARZ, the ADA4610-1ARZ uniquely balances ultra-low input bias current, sub-µV/°C drift, rail-to-rail output, and ±15 V operation-making it the optimal choice for high-accuracy, wide-temperature, high-impedance measurement systems where all three parameters are simultaneously critical.
Availability
ADA4610-1ARZ is available at Aetrix Electronics and suitable for precision current measurement, medical biopotential amplification, photodiode signal conditioning, and multipole active filtering requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADA4610-1ARZ 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 spanning 15+ countries.
The ADA4610 family was engineered specifically for precision, low-noise, high-input-impedance applications-including medical diagnostics, analytical instrumentation, and high-fidelity sensor interfaces-where JFET input characteristics outperform CMOS and bipolar alternatives.
FAQ
What is the maximum operating temperature range for the ADA4610-1ARZ?
The ADA4610-1ARZ is specified over the −40°C to +125°C extended industrial temperature range. Electrical characteristics including offset voltage, drift, and CMRR are guaranteed across this full range, making ADA4610-1ARZ suitable for under-hood automotive sensors, industrial PLC modules, and outdoor medical telemetry units where ambient temperatures exceed standard commercial limits.
Does the ADA4610-1ARZ require external compensation for unity-gain stability?
No, the ADA4610-1ARZ is internally compensated and unity-gain stable. It achieves 61° phase margin at AV = 1 with ±5 V supply and 2 kΩ load, eliminating the need for external compensation networks. This simplifies PCB layout and reduces bill-of-materials cost in buffer, follower, and transimpedance configurations where ADA4610-1ARZ is deployed.
What is the function of pins 1, 5, and 8 on the ADA4610-1ARZ 8-lead SOIC package?
Pins 1, 5, and 8 on the ADA4610-1ARZ 8-lead SOIC package are Not Internally Connected (NIC). They serve no electrical function and must remain unconnected-neither tied to ground nor routed. Leaving them floating is acceptable; however, grounding them improves mechanical robustness and EMI immunity in high-noise environments without affecting ADA4610-1ARZ performance.
Can the ADA4610-1ARZ drive capacitive loads without oscillation?
Yes, the ADA4610-1ARZ maintains stability driving capacitive loads up to 100 pF with no external isolation resistor required. Its optimized output stage and internal compensation enable clean transient response (as shown in Figure 34 and Figure 37 of the datasheet) even with CL = 100 pF and RL = 2 kΩ-critical for driving ADC input capacitance or long cables in ADA4610-1ARZ-based data acquisition front-ends.
How does the ADA4610-1ARZ prevent output phase reversal during input overvoltage?
The ADA4610-1ARZ uses a proprietary input stage architecture that avoids the parasitic conduction paths causing phase reversal in older JFET op amps. When input voltages exceed the ±2.5 V (±5 V supply) or ±12.5 V (±15 V supply) common-mode range, ADA4610-1ARZ output remains well-behaved and monotonic-eliminating risk of latch-up or erroneous control signals in fault-tolerant sensor interfaces.
ADA4610-1ARZ 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:
- 1
- 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
- Current - Output / Channel:
- 79 mA
- Voltage - Supply Span (Min):
- 9 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ADA4610-1ARZ FAQ
1.How can I place an order for ADA4610-1ARZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4610-1ARZ 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 ADA4610-1ARZ reliable?
The price and inventory of ADA4610-1ARZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4610-1ARZ is usually 5 days.
3.What payment methods are accepted for ADA4610-1ARZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4610-1ARZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4610-1ARZ?
ADA4610-1ARZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4610-1ARZ 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 ADA4610-1ARZ?
For technical support, including ADA4610-1ARZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4610-1ARZ requirements.
6.How does Aetrix verify that ADA4610-1ARZ is sourced from the original manufacturer or authorized distributors?
All ADA4610-1ARZ 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 ADA4610-1ARZ meets industry standards.
7.What is the process for return or replacement of ADA4610-1ARZ?
All ADA4610-1ARZ units undergo pre-shipment inspection (PSI). If there is an issue with ADA4610-1ARZ, 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 ADA4610-1ARZ part is unused and in its original packaging.
Return procedure for ADA4610-1ARZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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