ADA4610-1ARZ - Precision JFET Op Amp, Rail-to-Rail | Analog Devices
MPN: ADA4610-1ARZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.08 | $30.80 |
| 100 | $2.52 | $252.00 |
| 500 | $2.16 | $1,080.00 |
| 1,000 | $1.82 | $1,820.00 |
Drop-in alternatives for ADA4610-1ARZ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADA4610-1ARZ-RL
✅ Drop-In📋 Reference alternative (not in catalog)
ADA4610-1ARZ-R7
✅ Drop-In📋 Reference alternative (not in catalog)
ADA4610-2ARZ
✅ Drop-In✓ In Stock
$2.19 / Unit
View Datasheet →OPA140AID
✅ Drop-In📋 Reference alternative (not in catalog)
OPA197ID
✅ Drop-In📋 Reference alternative (not in catalog)
ADA4522-1ARZ
✅ Drop-In✓ In Stock
$1.42 / Unit
View Datasheet →ADA4610-1ARZ Maximum Ratings & Electrical Characteristics
| Amplifier Type | JFET |
| Number of Circuits | 1 |
| Output Type | Rail-to-Rail |
| Slew Rate | 61 V/µs |
| Gain Bandwidth Product | 16.3 MHz |
| Current - Input Bias | 2 pA |
| Voltage - Input Offset | 75 µV (max) |
| Current - Supply | 1.7 mA |
| Current - Output / Channel | 70 mA |
| Voltage - Supply Span (Min) | 9 V |
| Voltage - Supply Span (Max) | 30 V |
| Operating Temperature | -40°C to +125°C |
| Package / Case | 8-SOIC |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
ADA4610-1ARZ Pin Configuration
| Pin 1 | OFFSET NULL — Offset null adjustment |
| Pin 2 | IN- — Inverting input |
| Pin 3 | IN+ — Non-inverting input |
| Pin 4 | V- — Negative supply |
| Pin 5 | OFFSET NULL — Offset null adjustment |
| Pin 6 | OUT — Output |
| Pin 7 | V+ — Positive supply |
| Pin 8 | NC — No connect |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
ADA4610-1ARZ is suitable for 6 applications: Precision Instrumentation, Active Filters, Photodiode Amplification, Data Acquisition Systems, Medical Instrumentation, Industrial Process Control.
Precision Instrumentation
The ADA4610-1ARZ's low offset voltage (75 µV max), low input bias current (2 pA), and low noise (7.3 nV/√Hz) make it ideal for precision instrumentation amplifiers. In a typical data acquisition front-end, the op amp buffers high-impedance sensors with minimal loading and error. Its rail-to-rail output maximizes the dynamic range of the subsequent ADC, ensuring accurate measurement of small signals. The wide supply range allows operation from ±5 V to ±15 V, accommodating various system rails. For best performance, use a guard ring around the input pins to reduce leakage currents.
Recommended
Active Filters
The ADA4610-1ARZ is well-suited for active filter designs due to its 16.3 MHz gain-bandwidth product and 61 V/µs slew rate. In a 4th-order low-pass filter for anti-aliasing, the op amp provides sufficient loop gain to maintain accuracy up to 1 MHz. The low input bias current minimizes DC offset errors in high-impedance filter networks. The rail-to-rail output allows the filter to drive ADC inputs without clipping. For optimal performance, use precision resistors with 1% tolerance or better and place the filter components close to the op amp to minimize parasitic capacitance.
Recommended
Photodiode Amplification
The ADA4610-1ARZ's ultra-low input bias current of 2 pA is essential for transimpedance amplifiers used with photodiodes. In a photodiode circuit, the op amp converts the small photocurrent into a voltage with high accuracy. The low voltage noise ensures a good signal-to-noise ratio even for weak optical signals. The JFET input stage presents a high impedance to the photodiode, minimizing loading. For best performance, use a T-network feedback to reduce noise and place a small capacitor in parallel with the feedback resistor to stabilize the circuit.
Recommended
Data Acquisition Systems
In data acquisition systems, the ADA4610-1ARZ serves as a precision buffer or gain stage before the ADC. Its low offset and drift ensure accurate DC measurements, while the rail-to-rail output allows full-scale use of the ADC input range. The wide bandwidth supports sampling rates up to several MSPS. The device's low power consumption (1.7 mA) is beneficial in multi-channel systems. For high-resolution ADCs, pair the op amp with a low-pass filter to reduce out-of-band noise.
Recommended
Medical Instrumentation
The ADA4610-1ARZ is suitable for medical instrumentation such as ECG and EEG amplifiers due to its low noise and high input impedance. In an ECG front-end, the op amp amplifies the small biopotential signals while rejecting common-mode interference. The low bias current minimizes electrode offset errors. The rail-to-rail output allows the signal to be digitized by an ADC with maximum resolution. The device's extended temperature range (-40°C to +125°C) ensures reliable operation in medical devices. For safety, use proper isolation and filtering.
Recommended
Industrial Process Control
In industrial process control, the ADA4610-1ARZ is used in signal conditioning for sensors like thermocouples and RTDs. Its low offset voltage and drift ensure accurate temperature measurement. The wide supply range allows operation from 24 V industrial rails. The rail-to-rail output enables direct interface to PLC analog input modules. The device's robustness over -40°C to +125°C makes it suitable for harsh environments. For best performance, use shielded cables and proper grounding to minimize noise.
Recommended
Recommended Products Summary
Engineering reference data for ADA4610-1ARZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADA4610-1ARZ-RL | OPA140AID | OPA197ID |
|---|---|---|---|---|
| Package | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Brand | Analog Devices | Analog Devices | Texas Instruments | Texas Instruments |
| Input Bias Current | 2 pA | 2 pA | 10 pA | 5 pA |
| Input Voltage Noise | 7.3 nV/√Hz | 7.3 nV/√Hz | 5.5 nV/√Hz | 5.5 nV/√Hz |
| Gain Bandwidth Product | 16.3 MHz | 16.3 MHz | 11 MHz | 10 MHz |
| Slew Rate | 61 V/µs | 61 V/µs | 20 V/µs | 20 V/µs |
| Supply Current | 1.7 mA | 1.7 mA | 1.8 mA | 1 mA |
| Offset Voltage | 75 µV max | 75 µV max | 30 µV max | 25 µV max |
Key Differentiators
- Lower input bias current than OPA140 (vs OPA140AID)
- Higher slew rate than OPA197 (vs OPA197ID)
- Wider supply range than OPA197 (vs OPA197ID)
Design Notes
For optimal performance, place a 0.1 µF ceramic capacitor close to each supply pin (V+ and V-) to decouple high-frequency noise. Use a 10 µF tantalum capacitor in parallel for lower frequency decoupling. Ensure the ground plane is solid and the input traces are shielded to minimize noise pickup.
The JFET input has extremely low bias current, but PCB leakage can degrade performance. Use a guard ring around the input pins (pins 2 and 3) connected to a low-impedance node at the same potential to divert leakage currents. Clean the board thoroughly to remove flux residues that can cause leakage.
The ADA4610-1ARZ dissipates minimal power (typically 1.7 mA supply current), so thermal issues are unlikely. However, in high-temperature environments, ensure the junction temperature stays below 150°C. The 8-SOIC package has a thermal resistance of approximately 158°C/W, so at 25°C ambient, the junction temperature rise is negligible.
Compliance Information
EU RoHS compliant and REACH compliant per Abacus Technologies. Conflict minerals status undeterminable.
