Data Sheet
FEATURES
Low noise: 2.7 nV/√Hz at f = 10 kHz Low offset voltage: 250 µV max over VCM Offset voltage drift: 0....
Data Sheet
FEATURES
Low noise: 2.7 nV/√Hz at f = 10 kHz Low offset
voltage: 250 µV max over VCM 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
APPLICATIONS
ADC and DAC buffers Audio Industrial controls Precision filters Digital scales Automotive collision avoidance PLL filters
GENERAL 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.
Low Noise, Precision
CMOS Amplifier
AD8655/AD8656
05304-048 05304-059
PIN CONFIGURATIONS
NC 1 –IN 2 +IN 3 V– 4
AD8655
TOP VIEW (Not to Scale)
8 NC 7 V+ 6 OUT 5 NC
NC = NO CONNECT
Figure 1. AD8655 8-Lead MSOP (RM-8)
8-Lead SOIC (R-8)
OUT A 1 –IN A 2 +IN A 3 V– 4
AD8656
TOP VIEW (Not to Scale)
8 V+ 7 OUT B 6 –IN B 5 +IN B
Figure 2. AD8656 8-Lead MSOP (RM-8)
8-Lead SOIC (R-8)
The high precision performance of the AD8655/AD8656 improves the resolution and dynamic range in low
voltage applications. Audio applications, s...