Overview
The AD8397ARDZ, produced by Analog Devices Inc., is a dual voltage feedback operational amplifier designed to drive heavy loads with excellent linearity. It features a common-emitter, rail-to-rail output stage that surpasses the output voltage capability of typical emitter-follower output stages. This amplifier is fabricated using Analog Devices' high-speed extra fast complementary bipolar high voltage (XFCB-HV) process, ensuring high bandwidth and fast slew rates to minimize distortion. The AD8397 is ideal for applications requiring large signal swings into heavy loads, such as twisted-pair line drivers, audio applications, and general-purpose AC applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| −3 dB Bandwidth (G = +1, RL = 25 Ω) | 69 MHz | |||
| Slew Rate (VOUT = 0.8 V p-p, RLOAD = 25 Ω) | 53 V/μs | |||
| Input Voltage Noise (f = 100 kHz) | 4.5 nV/√Hz | |||
| Input Current Noise (f = 100 kHz) | 1.5 pA/√Hz | |||
| Input Offset Voltage | 1.0 mV | 2.5 mV | ||
| Supply Current (per amplifier) | 7 mA | 9 mA | 12 mA | |
| Output Current (peak AC, RLOAD = 12 Ω) | 310 mA | |||
| Supply Voltage Range (dual supply) | ±1.5 V | ±12 V | ||
| Operating Temperature Range | −40°C | +85°C |
Key Features
- Dual voltage feedback operational amplifier with common-emitter, rail-to-rail output stage.
- Wide supply range from 3 V to 24 V (±1.5 V to ±12 V).
- High output current capability, up to 310 mA into 32 Ω loads.
- High bandwidth of 69 MHz (G = +1, RL = 25 Ω) and fast slew rate of 53 V/μs.
- Low distortion and noise, with 4.5 nV/√Hz voltage noise density and 1.5 pA/√Hz current noise density at 100 kHz.
- Rail-to-rail output swing to within 0.5 V of supply rails.
Applications
- Twisted-pair line drivers
- Audio applications
- General-purpose AC applications
The AD8397 is particularly suited for any application requiring high output current, low distortion, and a wide output dynamic range.
Q & A
- What is the AD8397ARDZ?
The AD8397ARDZ is a dual voltage feedback operational amplifier produced by Analog Devices Inc., designed for driving heavy loads with excellent linearity.
- What is the bandwidth of the AD8397?
The AD8397 has a bandwidth of 69 MHz at a gain of +1 and a load resistance of 25 Ω.
- What is the slew rate of the AD8397?
The slew rate of the AD8397 is 53 V/μs.
- What is the input voltage noise density of the AD8397?
The input voltage noise density of the AD8397 is 4.5 nV/√Hz at 100 kHz.
- What is the maximum output current of the AD8397?
The AD8397 can deliver up to 310 mA of peak AC output current into a 32 Ω load.
- What is the supply voltage range for the AD8397?
The AD8397 can operate from a supply voltage range of ±1.5 V to ±12 V (or 3 V to 24 V single supply).
- What are the typical applications of the AD8397?
The AD8397 is typically used in twisted-pair line drivers, audio applications, and general-purpose AC applications.
- What is the operating temperature range of the AD8397?
The AD8397 operates over a temperature range of −40°C to +85°C.
- What is the package type of the AD8397ARDZ?
The AD8397ARDZ is available in an 8-lead SOIC package with an exposed pad.
- Is the AD8397 RoHS compliant?
Yes, the AD8397ARDZ is RoHS compliant.
