Overview
The AD648JRZ from Analog Devices Inc. is a dual precision, low power BiFET operational amplifier. This device is part of the AD648 series, known for its high dc precision and low power consumption. The AD648JRZ is fabricated using ion-implanted FET and laser wafer trimming technologies, ensuring low input offset voltage and drift. It is particularly suited for applications requiring low power and excellent dc and ac performance.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Offset Voltage | - | - | 2 mV (AD648J), 750 µV (AD648JRZ) | mV |
| Input Offset Voltage Drift | - | - | 20 µV/°C (AD648J), 10 µV/°C (AD648B) | µV/°C |
| Input Bias Current | - | - | 10 pA | pA |
| Quiescent Current | - | - | 400 µA | µA |
| Bandwidth | - | - | 1 MHz | MHz |
| Slew Rate | - | 1.8 | - | V/µs |
| Settling Time to ±0.01% | - | - | 8 µs | µs |
| Output Current per Channel | - | - | 15 mA | mA |
| Operating Temperature Range | 0 | - | 70 | °C |
| Supply Voltage Range | 9 | - | 36 | V |
Key Features
- Low Input Offset Voltage and Drift: The AD648JRZ features a maximum guaranteed input offset voltage of less than 2 mV and an offset voltage drift of less than 20 µV/°C, achieved through Analog Devices' laser wafer drift trimming technology.
- Low Bias Current: The device has a very low input bias current of less than 10 pA, making it suitable for high-impedance sources.
- Low Quiescent Current: With a quiescent current of less than 400 µA, this op amp is ideal for battery-powered applications and other low-power designs.
- High Bandwidth and Slew Rate: The AD648JRZ offers a bandwidth of 1 MHz and a slew rate of 1.8 V/µs, ensuring good ac performance.
- Low Crosstalk: The crosstalk between amplifiers is less than –120 dB at 1 kHz, making it suitable for applications requiring minimal signal interference.
- Multiple Package Options: Available in various packages including 8-SOIC, 8-DIP, and 8-CERDIP, providing flexibility in design.
Applications
- Battery-Powered Devices: The low power consumption and minimal self-heating effects make the AD648JRZ ideal for battery-powered applications.
- Precision Instrument Front Ends: Its high dc precision and low noise characteristics are beneficial in precision instrument front ends.
- CMOS DAC Buffers: The AD648JRZ is suitable for buffering CMOS digital-to-analog converters due to its low input bias current and high impedance.
- General Purpose Amplification: It can be used in various general-purpose op amp applications requiring low power and high precision.
Q & A
- What is the maximum input offset voltage of the AD648JRZ?
The maximum input offset voltage of the AD648JRZ is 2 mV for the AD648J grade and 750 µV for the AD648JRZ grade.
- What is the typical slew rate of the AD648JRZ?
The typical slew rate of the AD648JRZ is 1.8 V/µs.
- What is the quiescent current of the AD648JRZ?
The quiescent current of the AD648JRZ is less than 400 µA.
- What are the package options available for the AD648JRZ?
The AD648JRZ is available in 8-SOIC, 8-DIP, and 8-CERDIP packages.
- What is the operating temperature range of the AD648JRZ?
The operating temperature range of the AD648JRZ is from 0°C to 70°C.
- What is the supply voltage range for the AD648JRZ?
The supply voltage range for the AD648JRZ is from 9 V to 36 V.
- Is the AD648JRZ RoHS compliant?
Yes, the AD648JRZ is RoHS compliant..
- What is the bandwidth of the AD648JRZ?
The bandwidth of the AD648JRZ is 1 MHz..
- What is the settling time of the AD648JRZ to ±0.01%?
The settling time of the AD648JRZ to ±0.01% is 8 µs..
- What are some typical applications of the AD648JRZ?
The AD648JRZ is typically used in battery-powered devices, precision instrument front ends, CMOS DAC buffers, and general-purpose amplification..
