Overview
The AD8038ARZ-REEL, produced by Analog Devices Inc., is a high-speed, low-power voltage feedback amplifier. This component is part of the AD8038 and AD8039 series, which are designed to offer exceptional performance with minimal power consumption. The AD8038 is a single amplifier, while the AD8039 is a dual amplifier. These amplifiers are fabricated using Analog Devices' proprietary XFCB process, enabling low noise operation and high speed at extremely low quiescent currents.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 3 | 12 | V | |
| Quiescent Current per Amplifier | 0.9 | 1.0 | 1.5 | mA |
| −3 dB Bandwidth (G = +1) | 275 | 300 | MHz | |
| Slew Rate (G = +1) | 340 | 365 | V/μs | |
| Input Noise Voltage | 8 | nV/√Hz @ 100 kHz | ||
| Input Noise Current | 600 | fA/√Hz @ 100 kHz | ||
| Input Bias Current | 750 | nA | ||
| Input Offset Voltage | 3 | mV | ||
| Common-Mode Rejection Ratio | 59 | 65 | dB | |
| Power Supply Rejection Ratio | −65 | −71 | dB |
Key Features
- High speed: 350 MHz bandwidth and 425 V/μs slew rate.
- Low power: 1 mA typical supply current per amplifier.
- Low noise: 8 nV/√Hz and 600 fA/√Hz at 100 kHz.
- Low input bias current: 750 nA maximum.
- Wide supply voltage range: 3 V to 12 V.
- High common-mode rejection ratio: up to 65 dB.
- Power-down disable feature (available in AD8038).
- Small packaging: 8-lead SOIC package.
Applications
The AD8038 and AD8039 amplifiers are versatile and can be used in a variety of applications where high speed, low power, and low noise are critical. These include:
- Video and audio signal processing
- Medical instrumentation
- Industrial control systems
- High-speed data acquisition systems
- Driving capacitive loads up to 15 pF.
Q & A
- What is the typical supply current per amplifier for the AD8038?
The typical supply current per amplifier is 1 mA.
- What is the bandwidth of the AD8038 amplifier at a gain of +1?
The bandwidth at a gain of +1 is 300 MHz.
- What is the slew rate of the AD8038 amplifier?
The slew rate is 425 V/μs.
- What is the input noise voltage of the AD8038 at 100 kHz?
The input noise voltage is 8 nV/√Hz at 100 kHz.
- Does the AD8038 have a power-down disable feature?
Yes, the AD8038 has a power-down disable feature.
- What is the common-mode rejection ratio of the AD8038?
The common-mode rejection ratio is up to 65 dB.
- What is the maximum input bias current of the AD8038?
The maximum input bias current is 750 nA.
- What is the typical input offset voltage of the AD8038?
The typical input offset voltage is 3 mV.
- What is the power supply rejection ratio of the AD8038?
The power supply rejection ratio is up to -71 dB.
- In what package is the AD8038 available?
The AD8038 is available in an 8-lead SOIC package.
