The AD8332-EVALZ is an evaluation board for AD8332 dual VGA, ultralow noise preamplifier and programmable device. Optimized for ultrasound systems, they are usable as a low noise variable gain element at frequencies up to 120MHz. The AD8332-EVALZ is a platform for the test and evaluation of the AD8332 variable gain amplifier (VGA). The board is shipped assembled and tested, and users only need to connect the signal and VGAIN sources to a single 5V power supply. The board is designed for 0603 size, surface mount components. Provisions are made for optional components that can be installed for testing at the user's discretion. The default LNA input impedance is 50R to match various signal generators and network analysers. Input impedances up to 6Kohm are realized by changing values of RFBx and CSHx.
- Ultralow noise preamplifier, voltage noise of 0.74nV/√Hz and current noise of 2.5pA/√Hz
- 3dB bandwidth of 100MHz
- Low power of 145mW/channel
- Wide gain range with programmable postamp
- Low output referred noise of 48nV/√Hz typical
- Active input impedance matching
- Optimised for 10bit/12bit ADCs
- Selectable output clamping level
医用, 传感与仪器, 信号处理, 系统监控
(EN)
