ADC and DAC buffers


Industrial controls

Precision filters

Digital scales

Automotive collision avoidance

PLL filters




    The CBM8655/CBM8656 are the industry’s lowest noise, precision CMOS amplifiers. The leverage the to achieve high dc accuracy.  

    The CBM8655/CBM8656 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 CBM8655/CBM8656 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 CBM8655/CBM8656 to reduce system level noise performance and maintain audio fidelity. The high precision and rail-to-rail input and output of the CBM8655/ CBM8656 benefit data acquisition, process controls, and PLL filter applications. 

    The CBM8655/CBM8656 are fully specified over the −40°C to+125°C temperature range. The CBM8655/CBM8656 are available in Pb-free, 8-lead MSOP and SOIC packages. The CBM8655/CBM8656 are both available for automotive applications. 


  • 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


CBM8655AS8SOP-88-40℃至+ 125℃Reel, 2500RoHS在线申请
CBM8655AMS8MSOP-88-40℃至+ 125℃Reel, 3000RoHS在线申请
CBM8655ATS8TSSOP-88-40℃至+ 125℃Reel, 3000RoHS在线申请


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  • CBM8655 精密运算放大器 3.71M 2019-08-19