Overview
The AD648JNZ is a dual precision, low power BiFET operational amplifier produced by Analog Devices Inc. It is part of the AD648 series, known for its excellent DC and AC performance, making it suitable for a variety of applications requiring low power consumption and high precision. The AD648JNZ is fabricated using ion-implanted FET and laser wafer trimming technologies, ensuring low input offset voltage and drift. This device is particularly recommended for battery-powered systems, precision instrument front ends, and CMOS DAC buffers due to its low quiescent current and minimal self-heating effects.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Quiescent Current | 340 | 400 | 400 | µA |
| Bias Current (Warmed Up) | 10 | pA | ||
| Input Offset Voltage | 2 | mV | ||
| Offset Voltage Drift | 20 | µV/°C | ||
| Slew Rate | 1.0 | 1.8 | 1.8 | V/µs |
| Unity Gain Bandwidth | 1 | 1 | MHz | |
| Settling Time to ±0.01% | 8 | 8 | µs | |
| Operating Temperature Range | 0 | 70 | °C | |
| Power Supply Range | ±4.5 | ±18 | V |
Key Features
- Low quiescent current of 400 µA max, reducing power consumption.
- Low bias current of 10 pA max, warmed up, ensuring minimal input current.
- Guaranteed low input offset voltage of less than 2 mV and offset voltage drift of less than 20 µV/°C, achieved through Analog Devices’ laser wafer drift trimming technology.
- High DC precision with excellent matching characteristics between amplifiers.
- Low crosstalk of less than –120 dB at 1 kHz.
- Available in various packages including Plastic Mini-DIP, CERDIP, and Plastic SOIC, with options for tape and reel packaging.
- Operates over commercial, industrial, and military temperature ranges.
Applications
- Battery-powered systems where low power consumption is critical.
- Precision instrument front ends requiring high DC accuracy.
- CMOS DAC buffers where low noise and low offset voltage are essential.
- Any dual supply op amp application needing low power and excellent DC and AC performance.
Q & A
- What is the maximum quiescent current of the AD648JNZ? The maximum quiescent current is 400 µA.
- What is the typical bias current of the AD648JNZ when warmed up? The typical bias current is 10 pA.
- What is the guaranteed maximum input offset voltage of the AD648JNZ? The guaranteed maximum input offset voltage is less than 2 mV.
- What is the offset voltage drift of the AD648JNZ? The offset voltage drift is less than 20 µV/°C.
- What is the unity gain bandwidth of the AD648JNZ? The unity gain bandwidth is 1 MHz.
- What is the slew rate of the AD648JNZ? The slew rate is typically 1.8 V/µs.
- What are the operating temperature ranges for the AD648JNZ? The operating temperature range is 0°C to 70°C for the commercial grade.
- In what packages is the AD648JNZ available? It is available in Plastic Mini-DIP, CERDIP, and Plastic SOIC packages.
- Is the AD648JNZ suitable for military applications? Yes, there are military-grade versions available (AD648S/T).
- What are some typical applications of the AD648JNZ? Typical applications include battery-powered systems, precision instrument front ends, and CMOS DAC buffers.
