PGA5807AEVM 的特色
- 8-Channel Complete AFE
- Gain: 12 dB Wide Input Common-Mode Support: 2.1 ± 200 mV
- 18-dB PGA – With 3-dB Gain Steps
- Programmable LPF
- Power (Full-Chain): – 60 mW per Channel
PGA5807AEVM 的說明
The PGA5807AEVM (evaluation module) allows designers to evaluate the performance of Texas Instruments PGA5807A, 8-channel, high-bandwidth, analog front end (AFE). The device functions on a single 3.3-V analog supply and supports input frequencies up to 25 MHz with a total power of 60mW per channel. The PGA5807A consists of a low- noise amplifier (LNA), a programmable gain amplifier PGA), and a programmable low-pass filter (LPF). The LNA has a fixed 12-dB gain (differential amplifier with dc input coupling) and supports a maximum linear input range of 500 mVPP. The device provides gain options from 0 dB to 18 dB, in 3-dB gain steps. This 18-dB PGA gain range can be programmed using either the serial interface or external pins. The PGA5807A integrates an antialiasing filter in the form of an LPF to reduce noise.
The device is available in a very small, 9-mm × 9-mm QFN-16 package and is specified for operation over the –40°C to +85°C temperature range.