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 improvesthe 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 reducesystem 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/√Hz at f = 10 kHzLow offset voltage: 250 µV max over VCMOffset voltage drift: 0.4 µV/°C typ and 2.3 µV/°C maxBandwidth: 28 MHzRail-to-rail input/outputUnity gain stable2.7 V to 5.5 V operation−40°C to +125°C operationQualified for automotive applications

Typical applications

• 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