Overview
The AD744JR-REEL is a precision, fast-settling BiFET operational amplifier produced by Analog Devices Inc. This op-amp is part of the AD744 series, known for its excellent DC characteristics and enhanced settling, slew rate, and bandwidth. It combines the high DC precision of the AD711 BiFET family with improved dynamic performance, making it suitable for a variety of high-speed applications.
Key Specifications
| Parameter | Value |
|---|---|
| Settling Time | 500 ns to 0.01% for 10 V step |
| Slew Rate | 75 V/μs |
| Total Harmonic Distortion (THD) | 0.0003% |
| Gain Bandwidth Product | 13 MHz (internal compensation), >200 MHz (G = 1000, external compensation) |
| Input Offset Voltage | 0.5 mV max (AD744B) |
| Input Offset Drift | 10 μV/°C max (AD744B) |
| Open-Loop Gain | 250 V/mV min (AD744B) |
| Capacitive Load Drive Capability | 1000 pF with 10 V/μs slew rate (external compensation) |
| Power Supply | ±15 V (rated performance), ±4.5 V to ±18 V (operating range) |
| Quiescent Current | 3.5 mA to 5.0 mA |
Key Features
- Fast settling time of 500 ns to 0.01% for a 10 V step and 1.5 μs to 0.0025% for a 10 V step.
- High slew rate of 75 V/μs.
- Low total harmonic distortion (THD) of 0.0003%.
- High gain bandwidth product of 13 MHz (internally compensated) and >200 MHz (externally compensated with G = 1000).
- Excellent DC precision with low input offset voltage and drift.
- Capable of driving large capacitive loads up to 1000 pF with a 10 V/μs slew rate.
- Available in various packages including Plastic Mini-DIP, Plastic SOIC, Hermetic Cerdip, and Hermetic Metal Can.
Applications
- Output buffers for 12-bit, 14-bit, and 16-bit DACs and ADCs.
- ADC and DAC buffers.
- Cable drivers.
- Wideband preamplifiers and active filters.
- Demanding audio applications due to its low THD.
- Data acquisition systems requiring high-speed and high-precision amplification.
Q & A
- What is the settling time of the AD744JR-REEL?
The AD744JR-REEL settles to 0.01% in 500 ns for a 10 V step and to 0.0025% in 1.5 μs for a 10 V step. - What is the slew rate of the AD744JR-REEL?
The slew rate is 75 V/μs. - What is the total harmonic distortion (THD) of the AD744JR-REEL?
The THD is 0.0003%. - What is the gain bandwidth product of the AD744JR-REEL?
The gain bandwidth product is 13 MHz (internally compensated) and >200 MHz (externally compensated with G = 1000). - What is the input offset voltage of the AD744JR-REEL?
The input offset voltage is 0.5 mV max (AD744B). - Can the AD744JR-REEL drive large capacitive loads?
Yes, it can drive up to 1000 pF with a 10 V/μs slew rate (external compensation). - In what packages is the AD744JR-REEL available?
It is available in Plastic Mini-DIP, Plastic SOIC, Hermetic Cerdip, and Hermetic Metal Can packages. - What are some common applications of the AD744JR-REEL?
Common applications include output buffers for DACs and ADCs, cable drivers, wideband preamplifiers, active filters, and demanding audio applications. - What is the power supply range for the AD744JR-REEL?
The power supply range is ±4.5 V to ±18 V, with rated performance at ±15 V. - What is the quiescent current of the AD744JR-REEL?
The quiescent current is between 3.5 mA and 5.0 mA.
