Overview
The AD746JRZ is a dual operational amplifier produced by Analog Devices Inc. It consists of two AD744 BiFET op amps integrated on a single chip, offering exceptional dc characteristics, rapid settling times, high slew rates, and ample bandwidths. This precision monolithic op amp is designed for high-speed data acquisition systems and demanding audio applications, thanks to its low total harmonic distortion (THD) and close matching ac and dc characteristics.
Key Specifications
| Parameter | AD746J/A | AD746B | AD746S | Units |
|---|---|---|---|---|
| Input Offset Voltage | ±0.5 | ±0.5 | ±0.5 | mV |
| Input Bias Current | ±10 | ±10 | ±10 | pA |
| Slew Rate | 50 | 50 | 50 | V/µs |
| Bandwidth | 13 | 13 | 13 | MHz |
| Settling Time (0.01%) | 500 | 500 | 500 | ns |
| Operating Temperature Range | 0 to +70°C | –40 to +85°C | –55 to +125°C | °C |
| Power Supply Range | ±4.5 to ±18 | ±4.5 to ±18 | ±4.5 to ±18 | V |
| Quiescent Current | 7 to 10 | 7 to 10 | 7 to 10 | mA |
| Package Options | 8-Pin Plastic Mini-DIP, 8-Pin Cerdip, 8-Pin Surface Mount (SOIC) | 8-Pin Plastic Mini-DIP, 8-Pin Cerdip, 8-Pin Surface Mount (SOIC) | 8-Pin Plastic Mini-DIP, 8-Pin Cerdip, 8-Pin Surface Mount (SOIC) |
Key Features
- Exceptional dynamic response with a settling time of 500 ns to 0.01% and a minimum slew rate of 50 V/µs (AD746B).
- Outstanding dc precision achieved through Analog Devices’ advanced processing technology, laser wafer drift trimming, and well-matched ion-implanted JFETs.
- Very close matching of ac characteristics, making it ideal for differential and multichannel systems.
- Low total harmonic distortion (THD) of 0.0001%, suitable for demanding audio applications.
- Internally compensated for stable operation as a unity gain inverter or as a noninverting amplifier with a gain of 2 or greater.
- Available in four performance grades and three package options: 8-pin plastic mini DIP, hermetic cerdip, and surface mount (SOIC).
Applications
- Dual output buffers for 12- and 14-bit DACs.
- Input buffers for precision ADCs, wideband preamplifiers, and low distortion audio circuitry.
- High-speed data acquisition systems.
- Demanding audio applications due to its low THD and close matching ac characteristics.
Q & A
- What is the AD746JRZ?
The AD746JRZ is a dual operational amplifier produced by Analog Devices Inc., consisting of two AD744 BiFET op amps on a single chip.
- What are the key specifications of the AD746JRZ?
Key specifications include an input offset voltage of ±0.5 mV, a slew rate of 50 V/µs, a bandwidth of 13 MHz, and a settling time of 500 ns to 0.01%.
- What are the operating temperature ranges for the AD746JRZ?
The operating temperature ranges are 0 to +70°C for the AD746J, –40 to +85°C for the AD746A/B, and –55 to +125°C for the AD746S.
- What packages are available for the AD746JRZ?
The AD746JRZ is available in 8-pin plastic mini DIP, hermetic cerdip, and surface mount (SOIC) packages.
- What are some typical applications of the AD746JRZ?
Typical applications include dual output buffers for 12- and 14-bit DACs, input buffers for precision ADCs, wideband preamplifiers, and low distortion audio circuitry.
- What is the power supply range for the AD746JRZ?
The power supply range is ±4.5 to ±18 V.
- What is the quiescent current of the AD746JRZ?
The quiescent current is 7 to 10 mA.
- Is the AD746JRZ suitable for high-speed data acquisition systems?
Yes, it is suitable due to its exceptional dynamic response and fast settling time.
- Does the AD746JRZ have low total harmonic distortion (THD)?
Yes, it has a low THD of 0.0001%, making it ideal for demanding audio applications.
- Is the AD746JRZ internally compensated?
Yes, it is internally compensated for stable operation as a unity gain inverter or as a noninverting amplifier with a gain of 2 or greater.
