Overview
The ADA4610-2ACPZ-R7, produced by Analog Devices Inc., is a precision junction field effect transistor (JFET) dual operational amplifier. This component is part of the ADA4610 series, which includes single, dual, and quad amplifier configurations. The ADA4610-2 is specifically designed for applications requiring low input noise, low offset voltage, and very low input bias current. It is particularly suited for high impedance sensor amplification, precise current measurements using shunts, and applications in medical instruments, electronic measurement, and automated test equipment. The amplifier maintains fast settling performance even with substantial capacitive loads and does not suffer from output phase reversal when input voltages exceed the maximum common-mode voltage range.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions |
|---|---|---|---|---|---|---|
| Offset Voltage (B Grade) | VOS | 0.2 | 0.4 | 0.8 | mV | −40°C < TA < +125°C |
| Offset Voltage (A Grade) | VOS | 0.4 | 1 | 1.8 | mV | −40°C < TA < +125°C |
| Offset Voltage Drift (B Grade) | ΔVOS/ΔT | 0.5 | 4 | - | µV/°C | - |
| Offset Voltage Drift (A Grade) | ΔVOS/ΔT | 1 | 8 | - | µV/°C | - |
| Input Bias Current | IB | 5 | 25 | 1.5 nA | pA | −40°C < TA < +125°C |
| Input Offset Current | IOS | 2 | 20 | 0.25 nA | pA | −40°C < TA < +125°C |
| Input Voltage Range | - | -2.5 | +2.5 | V | - | |
| Common-Mode Rejection Ratio | CMRR | 94 | 110 | 86 dB | dB | VCM = −2.5 V to +2.5 V, −40°C < TA < +125°C |
| Large Signal Voltage Gain | AVO | 98 | 100 | 86 dB | dB | RL = 2 kΩ, VOUT = −3.5 V to +3.5 V, −40°C < TA < +125°C |
| Input Capacitance (Differential) | - | - | 3.1 | pF | VCM = 0 V | |
| Input Capacitance (Common-Mode) | - | - | 4.8 | pF | VCM = 0 V | |
| Input Resistance | - | - | >1013 | Ω | VCM = 0 V | |
| Output Voltage High | VOH | 14.8 | 14.9 | 14.65 | V | RL = 2 kΩ, −40°C < TA < +125°C |
| Output Voltage Low | VOL | -14.9 | -14.85 | -14.75 | V | RL = 2 kΩ, −40°C < TA < +125°C |
| Short-Circuit Current | ISC | - | - | ±79 | mA | - |
| Power Supply Rejection Ratio | PSRR | 106 | 125 | 103 dB | dB | VSY = ±4.5 V to ±18 V, −40°C < TA < +125°C |
| Supply Current per Amplifier | ISY | 1.60 | 1.85 | 2.0 | mA | IOUT = 0 mA, −40°C < TA < +125°C |
| Slew Rate | SR | 171 | - | - | V/µs | RL = 2 kΩ, AV = +1 |
| Gain Bandwidth Product | GBP | - | - | 16.3 | MHz | VIN = 5 mV p-p, RL = 2 kΩ, AV = 100 |
Key Features
- Low Offset Voltage: Maximum of 0.4 mV for B grade and 1 mV for A grade, with low offset voltage drift of 4 µV/°C for B grade and 8 µV/°C for A grade.
- Low Input Bias Current: Typical value of 5 pA, making it suitable for high impedance sensor amplification and precise current measurements.
- Dual-Supply Operation: Operates from ±5 V to ±15 V, providing flexibility in various applications.
- Low Noise: Low voltage noise of 0.45 µV p-p at 0.1 Hz to 10 Hz and a voltage noise density of 7.3 nV/√Hz at f = 1 kHz.
- Rail-to-Rail Output: Ensures maximum output swing and no phase reversal when input voltages exceed the maximum common-mode voltage range.
- Fast Settling Time and High Stability with Capacitive Loads: Ideal for high performance filters and applications requiring fast settling times.
Applications
- Medical Instruments: Suitable for medical devices requiring high precision and low noise.
- Electronic Measurement: Used in precision measurement equipment due to its low offset and noise characteristics.
- Automated Test Equipment: Provides superior accuracy and reliability in automated testing environments.
- High Impedance Sensor Amplification: Ideal for amplifying signals from high impedance sensors.
- Precise Current Measurements: Used with shunts for accurate current measurements.
- Photodiode Amplifiers: Offers low noise and distortion, making it suitable for photodiode amplifier circuits.
Q & A
- What is the ADA4610-2ACPZ-R7?
The ADA4610-2ACPZ-R7 is a dual-channel precision JFET operational amplifier produced by Analog Devices Inc..
- What are the key features of the ADA4610-2?
Key features include low offset voltage, low input bias current, dual-supply operation, low noise, rail-to-rail output, and fast settling time.
- What is the typical input bias current of the ADA4610-2?
The typical input bias current is 5 pA.
- What is the maximum offset voltage for the B grade ADA4610-2?
The maximum offset voltage for the B grade is 0.4 mV.
- What is the common-mode rejection ratio (CMRR) of the ADA4610-2?
The CMRR is 94 dB to 110 dB over the temperature range of −40°C to +125°C.
- What is the slew rate of the ADA4610-2?
The slew rate is 171 V/µs for both rising and falling edges.
- What is the gain bandwidth product (GBP) of the ADA4610-2?
The GBP is 16.3 MHz.
- What are the typical applications of the ADA4610-2?
Typical applications include medical instruments, electronic measurement, automated test equipment, high impedance sensor amplification, and precise current measurements.
- Does the ADA4610-2 suffer from output phase reversal?
No, the ADA4610-2 does not suffer from output phase reversal when input voltages exceed the maximum common-mode voltage range.
- What is the power supply rejection ratio (PSRR) of the ADA4610-2?
The PSRR is 106 dB to 125 dB over the temperature range of −40°C to +125°C.
