ADA4610-4ARUZ - Quad Precision JFET Op Amp | Analog Devices
料号： ADA4610-4ARUZ ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $12.14 | $12.14 |
| 10 | $10.92 | $109.20 |
| 100 | $9.71 | $971.00 |
| 500 | $8.5 | $4,250.00 |
| 1,000 | $7.29 | $7,290.00 |
ADA4610-4ARUZ 概述
What is a JFET-input operational amplifier? An operational amplifier (op amp) is a high-gain voltage amplifier with differential inputs and a single-ended output, used in signal conditioning, filtering, and instrumentation. A JFET-input op amp uses junction field-effect transistors at its input stage, providing very high input impedance (typically >10^12 ohms) and extremely low input bias current, making it ideal for interfacing with high-impedance sources such as photodiodes, pH sensors, and piezoelectric sensors. The ADA4610-4 belongs to the precision op amp category, which emphasizes low offset voltage, low drift, and low noise for accurate signal processing.
Key features of the ADA4610-4ARUZ include a low input voltage noise density of 7.3 nV/√Hz at 1 kHz, a low input current noise of 0.8 fA/√Hz, a maximum input offset voltage of 400 µV, and a typical input bias current of 1 pA. The rail-to-rail output stage allows the output to swing within 50 mV of the supply rails, maximizing dynamic range in low-voltage applications. The amplifier operates from a dual supply range of ±4.5 V to ±15 V or a single supply of 9 V to 30 V, providing flexibility in various power configurations.
Technically, the ADA4610-4 uses a precision JFET architecture with internal protective circuitry that allows input voltages up to 0.3 V beyond the supply rails without damage. The device features a gain bandwidth product of 16.3 MHz and a slew rate of 61 V/µs, enabling it to handle fast signals while maintaining precision. The low input bias current is maintained even at elevated temperatures due to minimized die temperature, making it suitable for applications without active cooling.
Typical applications include precision data acquisition systems, medical instrumentation, photodiode amplification, and active filters. The quad configuration in a compact TSSOP package saves board space and simplifies multi-channel designs. For example, in a multi-channel data acquisition system, the ADA4610-4 can buffer four sensor signals with minimal error.
When designing with this device, ensure proper power supply decoupling with 0.1 µF ceramic capacitors close to the supply pins. The high input impedance makes the device sensitive to PCB leakage currents, so a guard ring around the input pins is recommended to maintain low bias current performance.
直接替换替代料： ADA4610-4ARUZ ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ADA4610-4ARUZ （相同外形与封装尺寸） ——差异在于 Gain Bandwidth Product, Package.
快速对比工具——选择替代料号进行并排对比：
ADA4610-4ARUZ-RL
✅ 直接替换📋 参考替代料（不在目录中）
ADA4610-4ARUZ 最大额定值与电气特性
| Number of Channels | 4 |
| Amplifier Type | J-FET |
| 输出类型 | Rail-to-Rail |
| Supply Voltage - Single | 9 V to 30 V |
| Supply Voltage - Dual | ±4.5 V to ±15 V |
| Input Offset Voltage (max) | 400 µV |
| Input Bias Current (typ) | 1 pA |
| Input Voltage Noise Density | 7.3 nV/√Hz at 1 kHz |
| Input Current Noise Density | 0.8 fA/√Hz |
| Gain Bandwidth Product | 16.3 MHz |
| Slew Rate | 61 V/µs |
| 工作温度范围 | -40°C to +125°C |
| 封装 | 14-Lead TSSOP (RU) |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
ADA4610-4ARUZ 引脚配置
| 引脚 1 | OUT A — Output of amplifier A |
| 引脚 2 | -IN A — Inverting input of amplifier A |
| 引脚 3 | +IN A — Non-inverting input of amplifier A |
| 引脚 4 | V+ — Positive supply |
| 引脚 5 | +IN B — Non-inverting input of amplifier B |
| 引脚 6 | -IN B — Inverting input of amplifier B |
| 引脚 7 | OUT B — Output of amplifier B |
| 引脚 8 | OUT C — Output of amplifier C |
| 引脚 9 | -IN C — Inverting input of amplifier C |
| 引脚 10 | +IN C — Non-inverting input of amplifier C |
| 引脚 11 | V- — Negative supply |
| 引脚 12 | +IN D — Non-inverting input of amplifier D |
| 引脚 13 | -IN D — Inverting input of amplifier D |
| 引脚 14 | OUT D — Output of amplifier D |
典型应用
ADA4610-4ARUZ 适用于 6 应用s: Photodiode Amplification, Precision Data Acquisition, Medical Instrumentation, Active Filters, Current Sensing, Sensor Signal Conditioning.
Photodiode Amplification
The ADA4610-4ARUZ's ultra-low input bias current (1 pA) and low voltage noise (7.3 nV/√Hz) make it ideal for transimpedance amplifiers in photodiode systems. The high input impedance minimizes loading, and the rail-to-rail output maximizes dynamic range. In a typical circuit, the photodiode connects to the inverting input with a feedback resistor, and the JFET inputs ensure negligible current leakage, preserving accuracy in low-light detection.
推荐
Precision Data Acquisition
In multi-channel data acquisition systems, the ADA4610-4ARUZ provides four precision amplifiers in one package, saving space and cost. Its low offset voltage (400 µV max) and low noise ensure accurate signal conditioning for sensors. The rail-to-rail output allows full-scale ADC drive, and the wide supply range accommodates various system rails. The quad configuration simplifies PCB layout for simultaneous sampling of multiple channels.
推荐
Medical Instrumentation
The ADA4610-4ARUZ is suitable for medical devices like ECG and EEG amplifiers due to its low noise and high input impedance. The low bias current prevents electrode polarization, and the rail-to-rail output interfaces directly with ADCs. Its extended temperature range (-40°C to +125°C) ensures reliability in clinical environments. The quad package enables multi-lead monitoring in a compact form factor.
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Active Filters
With a gain bandwidth product of 16.3 MHz, the ADA4610-4ARUZ can implement active filters for audio and communication systems. The low noise and distortion preserve signal integrity, while the rail-to-rail output allows maximum signal swing. The quad configuration is ideal for multi-stage filters like Butterworth or Chebyshev designs, reducing component count and board area.
推荐
Current Sensing
The ADA4610-4ARUZ is well-suited for precision current sensing using shunt resistors. Its low offset voltage and low bias current minimize measurement errors, and the high common-mode rejection ensures accurate readings in the presence of noise. The rail-to-rail output allows direct interface with ADCs, and the quad package enables multiple current channels in motor control or power monitoring systems.
推荐
Sensor Signal Conditioning
The ADA4610-4ARUZ excels in conditioning signals from high-impedance sensors like pH probes, piezoelectric sensors, and accelerometers. Its low input bias current (1 pA) prevents loading, and the low noise preserves small signals. The wide supply range and rail-to-rail output make it versatile for various sensor interfaces. The quad package allows conditioning of multiple sensors in industrial IoT applications.
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推荐产品汇总
工程参考数据： ADA4610-4ARUZ ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | ADA4610-4ARZ | ADA4610-4ARUZ-RL | OPA4140AIDR |
|---|---|---|---|---|
| Package | 14-TSSOP | 14-SOIC | 14-TSSOP | 14-SOIC |
| Brand | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Number of Channels | 4 | 4 | 4 | 4 |
| Input Bias Current | 1 pA (typ) | 1 pA (typ) | 1 pA (typ) | 10 pA (typ) |
| Input Offset Voltage (max) | 400 µV | 400 µV | 400 µV | 750 µV |
| Voltage Noise Density | 7.3 nV/√Hz | 7.3 nV/√Hz | 7.3 nV/√Hz | 5.5 nV/√Hz |
| Gain Bandwidth Product | 16.3 MHz | 16.3 MHz | 16.3 MHz | 11 MHz |
| Supply Voltage Range | ±4.5 V to ±15 V | ±4.5 V to ±15 V | ±4.5 V to ±15 V | ±4.5 V to ±18 V |
关键差异点
- Ultra-low input bias current of 1 pA （对比 OPA4140AIDR)
- Lower offset voltage (400 µV max) （对比 OPA4140AIDR)
- Higher gain bandwidth product (16.3 MHz) （对比 OPA4140AIDR)
设计说明
For optimal performance, place 0.1 µF ceramic capacitors close to the V+ and V- pins to decouple power supply noise. Additionally, use a 10 µF tantalum capacitor in parallel for low-frequency decoupling. Ensure the ground plane is solid and the input traces are shielded to minimize noise pickup.
Due to the extremely low input bias current (1 pA), PCB leakage currents can degrade performance. Implement a guard ring around the input pins (pins 2, 3, 5, 6, 9, 10, 12, 13) connected to a low-impedance node at the same potential as the inputs. This is critical in high-humidity environments.
Avoid exceeding the absolute maximum input voltage, which is 0.3 V beyond the supply rails. The internal protective circuitry allows this, but sustained overvoltage can cause damage. Also, ensure the output is not shorted to ground for extended periods, as this can cause thermal stress.
合规信息
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified.
