Analog Devices AD8656 | Demoboard BRD2505A

Description

The AD8655/AD8656 are the industry’s lowest noise, precision CMOS amplifiers. They leverage the Analog Devices DigiTrim® technology to achieve high dc accuracy.The AD8655/AD8656 provide low noise (2.7 nV/√Hz at 10 kHz), low THD + N (0.0007%), and high precision performance (250 μV max over VCM) to low voltage applications. The ability to swing rail-to-rail at the input and output enables designers to buffer analog-to-digital converters (ADCs) and other wide dynamic range devices in single-supply systems.The high precision performance of the AD8655/AD8656 improves the resolution and dynamic range in low voltage applications. Audio applications, such as microphone pre-amps and audio mixing consoles, benefit from the low noise, low distortion, and high output current capability of the AD8655/AD8656 to reduce system level noise performance and maintain audio fidelity. The high precision and rail-to-rail input and output of the AD8655/ AD8656 benefit data acquisition, process controls, and PLL filter applications.The AD8655/AD8656 are fully specified over the −40°C to +125°C temperature range. The AD8655/AD8656 are available in Pb-free, 8-lead MSOP and SOIC packages. The AD8655/ AD8656 are both available for automotive applications.

Features

• Low Noise: 2.7 nV/√rHz @ f = 10 kHz
• Low offset voltage: 250 μV max over Vcm
• Low Distortion: 0.0008%
• Offset voltage drift: 0.4 μV/°C typ and 2.3 μV/°C max
• Bandwidth: 28 MHz
• Rail-to-rail Input/Output
• Unity Gain Stable
• 2.7 V to 5.5 V Operation
• −40°C to +125°C Operation
• Qualified for automotive applications

Typical applications

• Automotive collision avoidance
• Audio
• Industrial controls
• EFM32PG26 Pro Kit that features sensors and peripherals. Additionally, the board is a fully featured debugger and energy monitoring tools

More information

• Datasheet
• IC product information