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LTC6754 Datasheet(PDF) 1 Page - Analog Devices |
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LTC6754 Datasheet(HTML) 1 Page - Analog Devices |
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1 / 34 page  LTC6563 1 Rev. 0 For more information www.analog.com Document Feedback TYPICAL APPLICATION FEATURES DESCRIPTION Four-Channel Transimpedance Amplifier with Output Multiplexing The LTC®6563 is a low-noise four-channel transimpedance amplifier (TIA) with 600MHz bandwidth. The LTC6563 TIA’s low noise, wide linear range, and low power dissipa- tion are ideal for LIDAR receivers using Avalanche photo- diodes (APDs) and photodiodes (PDs). The amplifier fea- tures selectable 22.2/16.7/11.1/5.55kΩ Transimpedance gain (RT) and 90µA linear input current range. Using an APD with a total input capacitance of 0.5pF, the input cur- rent noise density is 1.8pA/√Hz at 100MHz and 3.7pA/√Hz at 600MHz. The LTC6563 consumes between 194mW and 325mW on a 3.3V supply depending on output mode. An internal 4-to-1 MUX simplifies the system design. In addition, external multiplexing capability allows channel expansion up to 64 channels, saving space and power. Fast overload recovery and fast channel switchover make the LTC6563 well suited for LIDAR receivers with multiple APDs. The built-in high-speed differential ADC driver can swing as much as 2VP-P while driving into 100Ω external differential load. The LTC6563 is packaged in a 3mm × 5mm 24-pin exposed pad QFN package with wettable flanks. Typical Application with DC-Coupled Inputs Driving an ADC Pulse Response APPLICATIONS n 600MHz –3dB Bandwidth with 0.5pF Input Capacitance n Differential Output with Up to 2VP-P Swing into 100Ω Differential Load n Built-In High-Speed ADC Driver with Output MUX n Selectable 22.2/16.7/11.1/5.55kΩ Transimpedance Gain n 1.8pA/3.7pA√Hz Input Current Noise Density 100MHz/600MHz (0.5pF) n 65nARMS Integrated Input-Referred Current Noise Over 600MHz (0.5pF) n Large Linear Input Current Range 0µA to 90µA n Large Transient Overload Current >1A Peak n Fast Overload Recovery: 2.5ns n Fast Channel Switching: 10ns n Power Dissipation: 194mW to 325mW on 3.3V, Varies with Output Mode (13mW in Shutdown) n Output MUX allows multiple LTC6563s to Create 8, 12, 16 … 32 Channel Solutions n 3mm × 5mm, 24-Lead QFN Package, Wettable Flanks n AECQ-100 Grade 1 Qualified (Pending) n Automotive LIDAR Receiver n Industrial LIDAR Receiver All registered trademarks and trademarks are the property of their respective owners. 100 100 AD9094 VCM 3.3V 3.3V MULTIPLE LTC6563's 0.1µF V– OUT(2) TERM(2) OUT(2) TERM(2) APD ARRAY OMUX(2) 3.3V IN1 IN2 IN3 IN4 TIA TIA TIA TIA 4:1 MUX OFFSET OMUX OUT OUT TERM TERM CM CHSEL0 PWRMD LTC6563 OUTPUT STAGE TILT CHSEL1 ADJ0 ADJ1 ×2 ×1 OUTPUT CLAMPS LO HI BIAS CTRL CM CTRL 50 50 GND VCCI VCCO 6563 TA01a 0.1µF + – 1ns/DIV INPUT 20µA/DIV OUTDIFF 250mV/DIV 6563 TA01b |
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Similar Description - LTC6754 |
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