Overview
The ADA4610-4ARZ-RL is a precision junction field effect transistor (JFET) operational amplifier produced by Analog Devices Inc. This quad amplifier is part of the ADA4610 series, which includes single, dual, and quad configurations. The ADA4610-4 is renowned for its low input noise voltage, current noise, offset voltage, and input bias current, making it highly suitable for applications requiring high precision and low noise.
With its rail-to-rail output and excellent DC precision, the ADA4610-4 is ideal for use in medical instruments, electronic measurement, and automated test equipment. It maintains fast settling performance even with substantial capacitive loads and does not suffer from output phase reversal, a common issue in older JFET amplifiers.
Key Specifications
| Parameter | Symbol | Test Conditions/Comments | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | A Grade | - | 1 | - | mV |
| Offset Voltage Drift | TCVOS | - | - | 8 | µV/°C | |
| Input Bias Current | IB | - | 5 | - | pA | |
| Input Voltage Range | - | -2.5 to +2.5 V | - | - | - | V |
| Common-Mode Rejection Ratio (CMRR) | - | VCM = -2.5 V to +2.5 V | 86 | 98 | - | dB |
| Large Signal Voltage Gain (AVO) | - | RL = 2 kΩ, VOUT = -3.5 V to +3.5 V | 84 | 98 | - | dB |
| Input Capacitance | - | VCM = 0 V | - | 3.1 (Differential), 4.8 (Common-Mode) | - | pF |
| Input Resistance | - | VCM = 0 V | - | >1013 | - | Ω |
| Output Voltage High (VOH) | - | RL = 2 kΩ | 4.60 | 4.90 | - | V |
| Output Voltage Low (VOL) | - | RL = 2 kΩ | -4.95 | -4.90 | - | V |
| Slew Rate (SR) | - | RL = 2 kΩ, AV = +1 | 21 | 46 | - | V/µs |
| Gain Bandwidth Product (GBP) | - | VIN = 5 mV p-p, RL = 2 kΩ, AV = +1 | - | 9.3 | - | MHz |
| Phase Margin (φM) | - | VIN = 5 mV p-p, RL = 2 kΩ, AV = +1 | - | 66 | - | Degrees |
Key Features
- Low Offset Voltage: Maximum of 1 mV for A grade and 0.4 mV for B grade (ADA4610-2 only).
- Low Offset Voltage Drift: Maximum of 8 µV/°C for A grade and 4 µV/°C for B grade (ADA4610-2 only).
- Low Input Bias Current: Typical of 5 pA.
- Rail-to-Rail Output: Ensures maximum output voltage range.
- Low Noise: Voltage noise density of 7.3 nV/√Hz at 1 kHz.
- No Phase Reversal: Maintains output stability even when input voltages exceed the maximum common-mode voltage range.
- Fast Settling Time: Excellent performance with substantial capacitive loads.
- High Common-Mode Rejection Ratio (CMRR): Up to 98 dB.
- High Large Signal Voltage Gain (AVO): Up to 98 dB.
Applications
- Instrumentation: Suitable for precise measurements and high impedance sensor amplification.
- Medical Instruments: Provides superior accuracy in medical devices due to its low noise and high precision.
- Multipole Filters: Ideal for high-performance filters due to its fast slew rate and stability with capacitive loads.
- Precision Current Measurement: Used in applications involving shunts for precise current measurements.
- Photodiode Amplifiers and Sensors: Suitable for amplifying signals from photodiodes and other sensors.
- Automated Test Equipment: Offers excellent DC precision and low noise, making it suitable for automated test equipment.
Q & A
- What is the ADA4610-4ARZ-RL?
The ADA4610-4ARZ-RL is a precision quad JFET operational amplifier produced by Analog Devices Inc.
- What are the key features of the ADA4610-4ARZ-RL?
Key features include low offset voltage, low offset voltage drift, low input bias current, rail-to-rail output, and low noise.
- What is the typical input bias current of the ADA4610-4ARZ-RL?
The typical input bias current is 5 pA.
- Does the ADA4610-4ARZ-RL suffer from phase reversal?
No, it does not suffer from output phase reversal when input voltages exceed the maximum common-mode voltage range.
- What is the common-mode rejection ratio (CMRR) of the ADA4610-4ARZ-RL?
The CMRR is up to 98 dB.
- What are some typical applications of the ADA4610-4ARZ-RL?
Typical applications include instrumentation, medical instruments, multipole filters, precision current measurement, photodiode amplifiers, and automated test equipment.
- What is the slew rate of the ADA4610-4ARZ-RL?
The slew rate is 21 V/µs rising and 46 V/µs falling.
- What is the gain bandwidth product (GBP) of the ADA4610-4ARZ-RL?
The GBP is 9.3 MHz.
- What is the phase margin of the ADA4610-4ARZ-RL?
The phase margin is 66 degrees.
- How does the ADA4610-4ARZ-RL perform with capacitive loads?
It maintains fast settling performance even with substantial capacitive loads.
