Overview
The AD744JNZ, produced by Analog Devices Inc., is a fast-settling, precision, FET input, monolithic operational amplifier. It inherits the excellent DC characteristics of the AD711 BiFET family and enhances settling, slew rate, and bandwidth. This amplifier is designed for high-speed applications, offering exceptional dynamic response and DC precision. The AD744JNZ is suitable for use in various demanding applications, including output buffers for high-resolution DACs and ADCs, cable drivers, wideband preamplifiers, and active filters.
Key Specifications
| Parameter | Value |
|---|---|
| Settling Time to 0.01% | 500 ns for 10 V Step |
| Settling Time to 0.0025% | 1.5 μs for 10 V Step |
| Slew Rate | 75 V/μs (min 50 V/μs for AD744B) |
| Total Harmonic Distortion (THD) | 0.0003% |
| Gain Bandwidth Product | 13 MHz (Internal Compensation), >200 MHz (External Compensation, G = 1000) |
| Input Offset Voltage | 0.5 mV max (AD744B) |
| Input Offset Voltage Drift | 10 μV/°C max (AD744B) |
| Open-Loop Gain | 250 V/mV min (AD744B) |
| Operating Temperature Range | –40°C to +85°C (AD744A/B), 0°C to +70°C (AD744J/K), –55°C to +125°C (AD744S/T) |
| Storage Temperature Range | –65°C to +125°C |
| Package Types | 8-Lead Plastic Mini-DIP, 8-Lead SOIC, 8-Lead Cerdip, Hermetic Metal Can |
Key Features
- Fast settling time: 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: 75 V/μs (minimum 50 V/μs for AD744B).
- Low total harmonic distortion (THD): 0.0003%.
- High gain bandwidth product: 13 MHz (internally compensated) and >200 MHz (externally compensated with G = 1000).
- Excellent DC precision: 0.5 mV max input offset voltage and 10 μV/°C max input offset voltage drift.
- High capacitive load drive capability: up to 1000 pF with 10 V/μs slew rate.
- Available in various packages: 8-Lead Plastic Mini-DIP, 8-Lead SOIC, 8-Lead Cerdip, and Hermetic Metal Can.
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.
- Demanding audio applications due to low THD and high gain bandwidth product).
Q & A
- What is the settling time of the AD744JNZ for a 10 V step?
The settling time is 500 ns to 0.01% and 1.5 μs to 0.0025% for a 10 V step).
- What is the slew rate of the AD744JNZ?
The slew rate is 75 V/μs, with a minimum of 50 V/μs for the AD744B version).
- What is the total harmonic distortion (THD) of the AD744JNZ?
The THD is 0.0003%).
- What is the gain bandwidth product of the AD744JNZ?
The gain bandwidth product is 13 MHz (internally compensated) and >200 MHz (externally compensated with G = 1000)).
- What are the input offset voltage and drift specifications for the AD744JNZ?
The input offset voltage is 0.5 mV max, and the input offset voltage drift is 10 μV/°C max for the AD744B version).
- What are the operating temperature ranges for the AD744JNZ?
The operating temperature ranges are –40°C to +85°C (AD744A/B), 0°C to +70°C (AD744J/K), and –55°C to +125°C (AD744S/T)).
- In what packages is the AD744JNZ available?
The AD744JNZ is available in 8-Lead Plastic Mini-DIP, 8-Lead SOIC, 8-Lead Cerdip, and Hermetic Metal Can packages).
- What are some common applications of the AD744JNZ?
Common applications include output buffers for high-resolution DACs and ADCs, cable drivers, wideband preamplifiers, active filters, and demanding audio applications).
- What is the storage temperature range for the AD744JNZ?
The storage temperature range is –65°C to +125°C).
- Can the AD744JNZ drive high capacitive loads?
Yes, the AD744JNZ can drive up to 1000 pF with a 10 V/μs slew rate).
