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Analog Devices Inc. ADA4610-1BRZ
- Part No.:
- ADA4610-1BRZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADA4610-1BRZ.pdf
- Description:
- IC OPAMP JFET 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:176
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Product details
Overview
ADA4610-1BRZ 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 - ideal for high-impedance sensor signal conditioning in medical instruments and photodiode amplifiers.
For engineers reviewing the ADA4610-1BRZ datasheet, ADA4610-1BRZ pinout, ADA4610-1BRZ application, or ADA4610-1BRZ equivalent, this page provides verified technical context, SOIC-8 package mapping, real-world use cases in precision current measurement and audio front-ends, and validated alternative options with documented functional trade-offs.
Technical Context
The ADA4610-1BRZ employs a JFET input stage enabling ultra-low input bias current (5 pA typ) and >10¹³ Ω input resistance, critical for guarding high-impedance nodes. Its rail-to-rail output swing (±4.90 V at ±5 V supply, ±14.90 V at ±15 V) supports full dynamic range utilization without headroom loss.
It achieves 15.4 MHz gain bandwidth product and 21 V/µs slew rate (rising) under ±5 V supply, with 61° phase margin ensuring stable closed-loop operation into capacitive loads - a key differentiator versus legacy JFET op amps prone to instability or phase reversal beyond common-mode limits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage (B grade) | 0.4 mV max - enables sub-1 µV error in 100× gain stages for precision instrumentation. |
| Input Bias Current | 5 pA typical - preserves signal integrity in >1 GΩ source impedance circuits like photodiode transimpedance amplifiers. |
| Voltage Noise Density | 7.30 nV/√Hz at 1 kHz - supports low-noise signal chain design for 16-bit+ resolution systems. |
| Rail-to-Rail Output | Swings within 100 mV of rails (±4.90 V @ ±5 V) - maximizes ADC input utilization and dynamic range. |
| Supply Range | ±5 V to ±15 V - accommodates both low-voltage portable and high-dynamic-range industrial power domains. |
| THD + N | 0.00025% @ 1 kHz - meets high-fidelity audio and precision test equipment linearity requirements. |
| Unity-Gain Stable | No external compensation required - simplifies layout and reduces BOM count in buffer/gain applications. |
Pinout & Package
ADA4610-1BRZ is housed in an 8-lead SOIC package (R suffix) with standard JEDEC MS-012AC footprint. Pin 1 is OUT; pins 1, 5, and 8 are not internally connected (NIC). The exposed pad is absent - this variant uses plastic SOIC, not LFCSP.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT | Amplifier output node; capable of sourcing/sinking ±63 mA (short-circuit). |
| 2 | −IN | Inverting input; differential pair gate node with 3.1 pF capacitance and >10¹³ Ω resistance. |
| 3 | +IN | Noninverting input; matched to −IN for CMRR >94 dB over −40°C to +125°C. |
| 4 | V− | Negative supply rail connection; must be decoupled locally to minimize PSRR degradation. |
| 5 | NIC | No internal connection - left floating or grounded per PCB layout best practices. |
| 6 | NIC | No internal connection - unused pin; no electrical function or thermal path. |
| 7 | V+ | Positive supply rail connection; PSRR >104 dB ensures immunity to supply ripple. |
| 8 | NIC | No internal connection - electrically isolated; no impact on performance or thermal dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal | Prevents catastrophic output inversion when input exceeds common-mode range - eliminates need for external clamping diodes. |
| Low offset drift | 2 µV/°C max (B grade) - maintains calibration stability across industrial temperature range (−40°C to +125°C). |
| Stable with capacitive loads | Remains unity-gain stable driving ≥100 pF - enables direct interface to ADC inputs or long cables without isolation resistors. |
| Long-term offset drift | 5 µV typical after 10,000 hours - supports 10+ year field reliability in unattended monitoring systems. |
| Temperature hysteresis | 8 µV typical - ensures repeatable measurements during thermal cycling in lab-grade equipment. |
Applications
| Photodiode Amplification | Precision Current Measurement |
|---|---|
|
Use Scenario: Converting nanoamp-level photocurrent from silicon photodiodes into measurable voltage signals in spectrophotometers and pulse oximeters. 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 avoids signal corruption at >1 GΩ feedback resistors; 0.45 µV p-p 0.1–10 Hz noise enables detection of weak optical signals. |
Use Scenario: Measuring shunt voltage drops in motor control, battery management, and power supply monitoring with <100 µV error budgets. IC Role / Device Role / Timing Role: Precision difference amplifier front-end with high CMRR and rail-to-rail output for full-scale ADC utilization. Use Value: 94 dB min CMRR rejects common-mode noise from noisy power rails; 0.4 mV max offset contributes <0.004% error in 10 mΩ shunt at 1 A. |
| Medical Instrumentation | High-Fidelity Audio |
|
Use Scenario: Signal conditioning in ECG, EEG, and patient monitors where microvolt-level biopotentials require minimal DC error and low 1/f noise. IC Role / Device Role / Timing Role: Low-noise, low-drift gain stage preceding analog filters and digitization. Use Value: 2 µV/°C max offset drift prevents baseline wander during extended clinical sessions; 0.45 µV p-p 0.1–10 Hz noise preserves ST-segment fidelity. |
Use Scenario: Line-level preamplification and active filtering in studio interfaces and high-end DAC output stages. IC Role / Device Role / Timing Role: Unity-gain buffer and low-distortion gain block with wide bandwidth and low THD+N. Use Value: 0.00025% THD+N at 1 kHz ensures transparent audio reproduction; 15.4 MHz GBP supports ultrasonic content preservation up to 100 kHz. |
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 |
|---|---|---|---|
| AD8610ARZ | Higher offset drift (10 µV/°C typ), higher supply current (2.4 mA), but lower voltage noise (5.2 nV/√Hz). | Better suited for wideband, low-noise AC-coupled applications; less optimal for DC-stable, low-drift systems. | Select AD8610ARZ when voltage noise dominates system budget; prefer ADA4610-1BRZ for DC accuracy and thermal stability. |
| ADA4001-2ARZ | Lower bandwidth (10 MHz GBP), higher input bias current (20 pA typ), but same SOIC-8 package and rail-to-rail output. | Targeted at cost-sensitive, moderate-precision applications where 0.4 mV offset is not required. | Choose ADA4001-2ARZ for legacy designs needing drop-in replacement with relaxed specs; ADA4610-1BRZ adds 5.4 MHz extra bandwidth and 4× lower IB. |
Compared with AD8610ARZ and ADA4001-2ARZ, the ADA4610-1BRZ offers superior DC precision (0.4 mV offset, 2 µV/°C drift) and lower input bias current (5 pA), making it optimal for high-impedance, low-drift applications - whereas AD8610ARZ trades drift for lower noise, and ADA4001-2ARZ sacrifices bandwidth and bias current for cost reduction.
Availability
ADA4610-1BRZ is available at Aetrix Electronics and suitable for precision current measurement, photodiode amplification, and medical instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADA4610-1BRZ 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 signal conditioning in high-impedance, low-noise, and wide-temperature applications - specifically engineered for medical devices, analytical instrumentation, and industrial sensing where DC accuracy and long-term stability are non-negotiable.
FAQ
What is the maximum operating temperature range for the ADA4610-1BRZ?
The ADA4610-1BRZ is specified over the extended industrial temperature range of −40°C to +125°C. This rating is confirmed in the Absolute Maximum Ratings table and Electrical Characteristics sections of the Rev. I datasheet, with all key parameters (offset voltage, CMRR, PSRR) guaranteed across this full range.
Does the ADA4610-1BRZ require external compensation for unity-gain stability?
No, the ADA4610-1BRZ is internally compensated and unity-gain stable. The datasheet explicitly states "Unity-gain stable" in the FEATURES section and confirms 61° phase margin at unity gain in the DYNAMIC PERFORMANCE tables - no external capacitors or resistors are needed for stable operation.
Is the ADA4610-1BRZ pin-compatible with other op amps in the same SOIC-8 package?
The ADA4610-1BRZ uses a nonstandard SOIC-8 pinout: pins 1 (OUT), 2 (−IN), 3 (+IN), 4 (V−), 5 (NIC), 6 (NIC), 7 (V+), and 8 (NIC). It is not pin-compatible with industry-standard op amps like OP27 or AD8628 - direct replacement requires PCB layout revision due to NIC placement and missing inverting/noninverting input symmetry.
What is the typical input bias current of the ADA4610-1BRZ, and how does it vary with temperature?
The ADA4610-1BRZ has a typical input bias current of 5 pA at 25°C, rising to 1.5 nA maximum over −40°C to +125°C. Figure 17 and Figure 20 in the datasheet confirm this behavior, showing monotonic increase with temperature while remaining below 100 pA up to +85°C - critical for high-Z sensor interfacing.
Can the ADA4610-1BRZ drive capacitive loads without oscillation?
Yes, the ADA4610-1BRZ remains stable driving ≥100 pF capacitive loads, as demonstrated in Figure 34 (large-signal transient response) and confirmed by its 61° phase margin at unity gain. Unlike many JFET op amps, it does not require isolation resistors or external compensation when interfacing directly to ADC inputs or long traces.
ADA4610-1BRZ 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
ADA4610-1BRZ FAQ
1.How can I place an order for ADA4610-1BRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4610-1BRZ 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 ADA4610-1BRZ reliable?
The price and inventory of ADA4610-1BRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4610-1BRZ is usually 5 days.
3.What payment methods are accepted for ADA4610-1BRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4610-1BRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4610-1BRZ?
ADA4610-1BRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4610-1BRZ 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 ADA4610-1BRZ?
For technical support, including ADA4610-1BRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4610-1BRZ requirements.
6.How does Aetrix verify that ADA4610-1BRZ is sourced from the original manufacturer or authorized distributors?
All ADA4610-1BRZ 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 ADA4610-1BRZ meets industry standards.
7.What is the process for return or replacement of ADA4610-1BRZ?
All ADA4610-1BRZ units undergo pre-shipment inspection (PSI). If there is an issue with ADA4610-1BRZ, 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 ADA4610-1BRZ part is unused and in its original packaging.
Return procedure for ADA4610-1BRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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