Overview
The ADA4610-2ARMZ-RL, produced by Analog Devices Inc., is a precision dual-channel JFET operational amplifier. This component is part of the ADA4610 series, known for its low input noise voltage, current noise, offset voltage, and input bias current. The ADA4610-2 is particularly suited for applications requiring high dc precision, low noise, and fast settling times, making it ideal for medical instruments, electronic measurement, and automated test equipment.
Key Specifications
| Parameter | Symbol | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | B Grade (ADA4610-2 Only) | 0.2 | 0.4 | 1 | mV |
| Input Bias Current | IB | 5 | pA | |||
| Supply Voltage | VSY | ±5 | ±15 | V | ||
| Input Voltage Range | VIN | −2.5 | +2.5 | V | ||
| Common-Mode Rejection Ratio (CMRR) | CMRR | VCM = −2.5 V to +2.5 V | 94 | 110 | dB | |
| Large Signal Voltage Gain (AVO) | AVO | RL = 2 kΩ, VOUT = −3.5 V to +3.5 V | 98 | 100 | dB | |
| Output Voltage High (VOH) | VOH | RL = 2 kΩ | 4.85 | 4.90 | V | |
| Output Voltage Low (VOL) | VOL | RL = 2 kΩ | −4.95 | −4.90 | V | |
| Slew Rate (SR) | SR | RL = 2 kΩ | ±172 | ±25/−61 | V/μs | |
| Phase Margin (φM) | φM | AV = +1, RL = 2 kΩ | 61 | Degrees | ||
| Total Harmonic Distortion (THD) + Noise | THD + N | 1 kHz, AV = +1, RL = 2 kΩ, VIN = 1 V rms | 0.00025 | % | ||
| Voltage Noise Density (en) | en | f = 1 kHz | 7.3 | nV/√Hz |
Key Features
- Low Offset Voltage: B grade: 0.4 mV maximum, A grade: 1 mV maximum.
- Low Input Bias Current: 5 pA typical, making it suitable for high impedance sensor amplification and precise current measurements.
- Low Noise: Voltage noise density of 7.3 nV/√Hz at 1 kHz and peak-to-peak voltage noise of 0.45 µV from 0.1 Hz to 10 Hz.
- Rail-to-Rail Output: Ensures maximum output voltage swing.
- 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 110 dB, ensuring good rejection of common-mode signals.
- High Large Signal Voltage Gain (AVO): Up to 100 dB, providing high gain accuracy.
Applications
- Instrumentation: Ideal for precision measurement and data acquisition systems due to its high dc precision and low noise.
- Medical Instruments: Suitable for medical devices requiring high accuracy and low noise, such as ECG and EEG amplifiers.
- Multipole Filters: Excellent 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 high-impedance sensors.
- Audio Applications: Low distortion and noise make it suitable for high-quality audio amplification.
Q & A
- What is the ADA4610-2ARMZ-RL used for?
The ADA4610-2ARMZ-RL is a precision dual-channel JFET operational amplifier used in applications requiring high dc precision, low noise, and fast settling times, such as instrumentation, medical instruments, and automated test equipment.
- What are the key features of the ADA4610-2ARMZ-RL?
Key features include low offset voltage, low input bias current, low noise, rail-to-rail output, no phase reversal, and fast settling time.
- What is the typical input bias current of the ADA4610-2ARMZ-RL?
The typical input bias current is 5 pA.
- What is the voltage noise density of the ADA4610-2ARMZ-RL at 1 kHz?
The voltage noise density at 1 kHz is 7.3 nV/√Hz.
- Does the ADA4610-2ARMZ-RL suffer from phase reversal?
No, the ADA4610-2ARMZ-RL 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 ADA4610-2ARMZ-RL?
The CMRR is up to 110 dB.
- What are the typical output voltage high and low values for the ADA4610-2ARMZ-RL?
The typical output voltage high is 4.85 V to 4.90 V, and the typical output voltage low is −4.95 V to −4.90 V, with a load resistance of 2 kΩ.
- What is the slew rate of the ADA4610-2ARMZ-RL?
The slew rate is ±172 V/μs with a load resistance of 2 kΩ.
- What is the phase margin of the ADA4610-2ARMZ-RL?
The phase margin is 61 degrees with a gain of +1 and a load resistance of 2 kΩ.
- What is the total harmonic distortion (THD) + noise of the ADA4610-2ARMZ-RL?
The THD + noise is 0.00025% at 1 kHz with a gain of +1 and a load resistance of 2 kΩ.
