Overview
The AD648JN, produced by Analog Devices Inc., is a dual precision, low power BiFET operational amplifier. This device is designed to offer high performance with low power consumption, making it ideal for various applications requiring precision and efficiency. The AD648JN is pin-compatible with industry-standard dual op amps such as the LF442, TL062, and AD642, allowing designers to enhance performance while reducing power dissipation by up to 85%.
The AD648JN features advanced technologies including ion-implanted FET and laser wafer trimming, ensuring low bias current and low quiescent current. It is available in several grades to cover commercial, industrial, and military temperature ranges.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Bias Current (Warmed Up) | - | - | 10 pA | pA |
| Quiescent Current | 340 | - | 400 | µA |
| Input Offset Voltage | - | - | 2 mV | mV |
| Offset Voltage Drift | - | - | 20 µV/°C | µV/°C |
| Unity Gain Bandwidth | 0.8 | 1.0 | 1.0 | MHz |
| Slew Rate (Unity Gain) | 1.0 | 1.8 | 1.8 | V/µs |
| Settling Time to ±0.01% | 8 | - | 8 | µs |
| Open-Loop Gain (VO = ±10 V, RL ≥ 10 kΩ) | 300 | - | 1000 | V/mV |
| Operating Temperature Range | 0°C to 70°C (Commercial) | -40°C to +85°C (Industrial) | -55°C to +125°C (Military) | °C |
| Power Supply Range | ±4.5 V to ±18 V | - | - | V |
Key Features
- Low Power Consumption: Maximum quiescent current of 400 µA, making it suitable for battery-powered applications.
- High DC Precision: Guaranteed low input offset voltage (less than 2 mV) and drift (less than 20 µV/°C) achieved through laser wafer drift trimming technology.
- Low Bias Current: Maximum input bias current of 10 pA when warmed up.
- Excellent AC Performance: Unity gain bandwidth of 1 MHz, slew rate of 1.8 V/µs, and settling time to ±0.01% in 8 µs.
- Low Noise: 2 µV p-p noise from 0.1 Hz to 10 Hz.
- High Open-Loop Gain: Up to 1000 V/mV at VO = ±10 V and RL ≥ 10 kΩ.
- Low Crosstalk: Less than –120 dB at 1 kHz between amplifiers.
- Multiple Package Options: Available in SOIC, Mini-DIP, and CERDIP packages.
Applications
- Battery-Powered Devices: Ideal for applications requiring low power consumption and high precision.
- Precision Instrument Front Ends: Suitable for precision measurement and signal processing.
- CMOS DAC Buffers: Excellent for buffering digital-to-analog converters due to its low offset voltage and drift.
- On/Off Battery Powered Applications: Minimal self-heating effects due to low quiescent current and low offset drift.
- General Dual Supply Op Amp Applications: Recommended for any application requiring low power and excellent DC and AC performance.
Q & A
- What is the maximum input bias current of the AD648JN?
The maximum input bias current of the AD648JN is 10 pA when warmed up.
- What is the quiescent current of the AD648JN?
The quiescent current of the AD648JN is a maximum of 400 µA.
- What is the input offset voltage of the AD648JN?
The input offset voltage of the AD648JN is guaranteed to be less than 2 mV.
- What is the offset voltage drift of the AD648JN?
The offset voltage drift of the AD648JN is less than 20 µV/°C.
- What is the unity gain bandwidth of the AD648JN?
The unity gain bandwidth of the AD648JN is 1 MHz.
- What is the slew rate of the AD648JN?
The slew rate of the AD648JN is typically 1.8 V/µs.
- What is the settling time of the AD648JN to ±0.01%?
The settling time of the AD648JN to ±0.01% is 8 µs.
- What are the operating temperature ranges for the AD648JN?
The operating temperature ranges for the AD648JN are 0°C to 70°C (Commercial), –40°C to +85°C (Industrial), and –55°C to +125°C (Military).
- What are the package options available for the AD648JN?
The AD648JN is available in SOIC, Mini-DIP, and CERDIP packages.
- What are some typical applications of the AD648JN?
The AD648JN is typically used in battery-powered devices, precision instrument front ends, CMOS DAC buffers, and other applications requiring low power and high precision.
