Overview
The AD744JR is a fast-settling, precision, FET input, monolithic operational amplifier produced by Analog Devices Inc. It combines excellent DC characteristics with enhanced settling, slew rate, and bandwidth, making it suitable for a wide range of applications. The AD744JR is part of the AD744 family, which offers outstanding performance at competitive prices, outperforming other similar op-amps like the OPA602/OPA606 and LF356/LF400.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Offset Voltage | 0.3 | 1.0 | 0.5 | mV |
| Input Bias Current | 30 | 100 | 100 | pA |
| Slew Rate (External Compensation) | 10 | V/μs | ||
| Gain Bandwidth Product | 13 | MHz | ||
| Total Harmonic Distortion (THD) | 0.0003% | % | ||
| Operating Temperature Range | 0°C | +70°C | °C | |
| Package Type | SOIC-8 |
Key Features
- Fast settling time: 500 ns to 0.01% for a 10 V step.
- High slew rate: 75 V/μs (internally compensated), 10 V/μs (externally compensated).
- Low total harmonic distortion (THD): 0.0003%.
- High gain bandwidth product: 13 MHz.
- Exceptional capacitive load drive capability: up to 1000 pF with external compensation.
- Available in various packages: Plastic Mini-DIP, Plastic SOIC, Hermetic Cerdip, Hermetic Metal Can, and Chip Form Surface Mount.
- Low input offset voltage and drift: 0.5 mV max, 10 μV/°C max.
- High open-loop gain: 250 V/mV min.
Applications
- Output buffers for 12-bit, 14-bit, and 16-bit DACs and ADCs.
- Cable drivers and wideband preamplifiers.
- Active filters in data acquisition systems.
- Laboratory and testing equipment for signal amplification, frequency conversion, and noise control.
- Medical devices and diagnostic systems for signal processing and enhancement.
- Audio processing in sound systems, headphones, and speakers.
- Video equipment such as TVs, monitors, and projectors for enhancing video signals.
- Industrial automation in control equipment, measuring instruments, and robots.
Q & A
- What is the settling time of the AD744JR? The AD744JR settles to 0.01% in 500 ns for a 10 V step.
- What is the slew rate of the AD744JR? The slew rate is 75 V/μs (internally compensated) and 10 V/μs (externally compensated).
- What is the total harmonic distortion (THD) of the AD744JR? The THD is 0.0003%.
- What is the gain bandwidth product of the AD744JR? The gain bandwidth product is 13 MHz.
- What are the operating temperature ranges for the AD744JR? The operating temperature range is 0°C to +70°C.
- In what packages is the AD744JR available? The AD744JR is available in Plastic Mini-DIP, Plastic SOIC, Hermetic Cerdip, Hermetic Metal Can, and Chip Form Surface Mount packages.
- What is the input offset voltage of the AD744JR? The input offset voltage is 0.5 mV max.
- What is the open-loop gain of the AD744JR? The open-loop gain is 250 V/mV min.
- Can the AD744JR drive capacitive loads? Yes, it can drive up to 1000 pF capacitive loads with external compensation.
- What are some common applications of the AD744JR? Common applications include output buffers for DACs and ADCs, cable drivers, wideband preamplifiers, active filters, and various industrial and medical devices.
