Overview
The ADA4610-2ARMZ is a dual-channel, precision junction field effect transistor (JFET) amplifier produced by Analog Devices Inc. This amplifier is renowned for its low input noise voltage, current noise, offset voltage, and input bias current, along with its rail-to-rail output. It is particularly suited for high impedance sensor amplification, precise current measurements using shunts, and applications requiring excellent DC precision, low noise, and fast settling times. The ADA4610-2 is widely used in medical instruments, electronic measurement, automated test equipment, and various other high-performance applications.
Key Specifications
| Parameter | Symbol | Test Conditions/Comments | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Input Offset Voltage | VOS | −40°C < TA < +125°C | 50 | 100 | 200 | μV |
| Input Bias Current | IB | −40°C < TA < +125°C | 2 | 20 | 50 | pA |
| Common-Mode Rejection Ratio | CMRR | VCM = −2.5 V to +2.5 V | 86 | 94 | 110 | dB |
| Large Signal Voltage Gain | AVO | RL = 2 kΩ, VOUT = −3.5 V to +3.5 V | 96 | 98 | 100 | dB |
| Input Capacitance | CIN | VCM = 0 V | 3.1 (Differential), 4.8 (Common-Mode) | pF | ||
| Input Resistance | RIN | VCM = 0 V | >1013 | Ω | ||
| Output Voltage High | VOH | RL = 2 kΩ | 4.60 | 4.85 | 4.90 | V |
| Output Voltage Low | VOL | RL = 2 kΩ | −4.95 | −4.90 | −4.85 | V |
| Supply Current per Amplifier | ISY | IOUT = 0 mA | 1.60 | 1.85 | 2.0 | mA |
| Slew Rate | SR | RL = 2 kΩ, AV = +1 | ±171 | ±25/−61 | V/μs | |
| Gain Bandwidth Product | GBP | VIN = 5 mV p-p, RL = 2 kΩ, AV = 100 | 16.3 | MHz |
Key Features
- Low input noise voltage and current noise, offset voltage, and input bias current.
- Rail-to-rail output.
- Excellent DC precision and fast settling time.
- High common-mode rejection ratio (CMRR) and large signal voltage gain.
- High input resistance (>1013 Ω) and low input capacitance.
- Fast slew rate and high gain bandwidth product.
- No output phase reversal when input voltages exceed the maximum common-mode voltage range.
- Stable performance with substantial capacitive loads.
Applications
- High impedance sensor amplification.
- Precise current measurements using shunts.
- Medical instruments.
- Electronic measurement and automated test equipment.
- Multipole filters and precision current measurement.
- Photodiode amplifiers and sensor applications.
- Audio applications due to low noise and distortion.
Q & A
- What is the ADA4610-2ARMZ? The ADA4610-2ARMZ is a dual-channel, precision JFET amplifier produced by Analog Devices Inc..
- What are the key features of the ADA4610-2ARMZ? It features low input noise, offset voltage, and input bias current, along with rail-to-rail output and excellent DC precision.
- What are the typical applications of the ADA4610-2ARMZ? It is used in high impedance sensor amplification, precise current measurements, medical instruments, electronic measurement, automated test equipment, and audio applications.
- What is the input bias current of the ADA4610-2ARMZ? The input bias current is typically 20 pA and can range from 2 pA to 50 pA over the temperature range).
- What is the slew rate of the ADA4610-2ARMZ? The slew rate is ±171 V/μs rising and ±61 V/μs falling).
- Does the ADA4610-2ARMZ suffer from output phase reversal? No, it does not suffer from output phase reversal when input voltages exceed the maximum common-mode voltage range).
- What is the gain bandwidth product of the ADA4610-2ARMZ? The gain bandwidth product is 16.3 MHz).
- What are the package options for the ADA4610-2ARMZ? It is available in 8-lead narrow SOIC, 8-lead MSOP, and 8-lead LFCSP packages).
- What is the operating temperature range of the ADA4610-2ARMZ? The operating temperature range is −40°C to +125°C).
- What is the supply current per amplifier for the ADA4610-2ARMZ? The supply current per amplifier is typically 1.85 mA and can range up to 2.0 mA).
