C4890

www.DataSheet4U.com PHOTODIODE PIN photodiode amplifier C4890 Wide bandwidth amplifier (1.5 GHz, 20 dB) C4890 wide-band amplifier, when connected to a high-speed PIN photodiode (S5791, S5972, S5973, etc.) converts optical signals at a maximum of 1.5 GHz into voltage outputs with exceptionally low distortion and 20 dB gain. C4890 can also be combined with other types of PIN photodiodes and APDs (avalanche photodiodes) to serve as a high-frequency amplifier for optical measurements in a wide range of fields including industry and research applications. Features Applications l Wide bandwidth, high gain, flat gain spectrum l Flat, low group delay characteristics and low noise l Input/output impedance: 50 Ω l Small size, light weight, low price l Single power supply operation (+12 V) l High frequency amplifier for measurement l PIN photodiode evaluation s Absolute maximum ratings Parameter Supply voltage Input voltage Operating temperature Storage temperature Condition Continuation RF input DC Value +13.5 +15 +1.25 0 to +60 -10 to +70 Unit V dBm V °C °C s Electrical characteristics (Ta=25 °C, Vcc=12 V, Input/output is terminated with 50 Ω load.) Parameter High band Cut-off frequency (-3 dB) Low band Gain Gain deviation within bandwidth Group delay time Input VSWR Output 1 dB compression point Rise time Noise figure Current consumption Condition Min. 1.0 18 Typ. 1.5 5 20 ±1.0 700 1.1 1.5 7 240 8 45 f=1.0 GHz f=10 MHz to 1.0 GHz f=1.0 GHz Max. 10 - Unit GHz MHz dB dB ps ...