Overview
The AD746JNZ is a dual precision operational amplifier from Analog Devices Inc., known for its exceptional dynamic response and high precision characteristics. This BiFET op amp features two AD744 op amps on a single chip, making it ideal for high-speed data acquisition systems, precision analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and demanding audio applications.
Key Specifications
| Parameter | AD746J | AD746A/B | AD746S |
|---|---|---|---|
| Input Offset Voltage | ±12 mV (max) | ±12 mV (max) | ±12 mV (max) |
| Slew Rate | 50 V/µs (min) | 50 V/µs (min) | 50 V/µs (min) |
| Settling Time | 500 ns to 0.01% | 500 ns to 0.01% | 500 ns to 0.01% |
| Operating Temperature Range | 0°C to +70°C | –40°C to +85°C | –55°C to +125°C |
| Power Supply | ±4.5 V to ±18 V | ±4.5 V to ±18 V | ±4.5 V to ±18 V |
| Quiescent Current | 7 mA (typ) | 8 mA (typ) | 7 mA (typ) |
| 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.
- Outstanding dc precision due to advanced processing technology, laser wafer drift trimming, and well-matched ion-implanted JFETs.
- Very close matching of ac and dc characteristics, making it suitable for differential and multichannel systems.
- Low total harmonic distortion (THD) of 0.0001%, ideal for 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: 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.
- Low distortion audio circuitry.
Q & A
- What is the settling time of the AD746JNZ? The AD746JNZ settles to 0.01% in 500 ns.
- What is the slew rate of the AD746JNZ? The minimum slew rate is 50 V/µs.
- What are the operating temperature ranges for the AD746JNZ? The AD746J is rated for 0°C to +70°C, AD746A/B for –40°C to +85°C, and AD746S for –55°C to +125°C.
- What are the package options for the AD746JNZ? It is available in 8-pin plastic mini DIP, 8-pin hermetic cerdip, and 8-pin surface mount (SOIC) packages.
- What is the total harmonic distortion (THD) of the AD746JNZ? The THD is 0.0001%.
- Is the AD746JNZ suitable for audio applications? Yes, it is ideal for many demanding audio applications due to its low THD and close matching of ac characteristics.
- What is the input offset voltage of the AD746JNZ? The input offset voltage is specified to a maximum of 0.5 mV (AD746B).
- Is the AD746JNZ 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.
- What are some typical applications of the AD746JNZ? Typical applications include dual output buffers for DACs, input buffers for ADCs, wideband preamplifiers, and low distortion audio circuitry.
- Does the AD746JNZ have ESD protection? Yes, it features proprietary ESD protection circuitry.
