2-MHz Bandwidth PIN Photodiode Preamp with Dark Current Compensation based on AD8065
Reference Design using part AD8475 by Analog Devices
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Associated Documents
For End Products
- Avionics
- Diagnostics, Monitoring and Therapy
- Health Wellness & Fitness
- Portable Medical Instrumentation
- Unmanned Systems
Description
- Application Circuit is a high speed photodiode signal conditioning circuit with dark current compensation. The system converts current from a high speed silicon PIN photodiode and drives the inputs of a 20-MSPS analog-to-digital converter (ADC). This combination of parts offers spectral sensitivity from 400 nm to 1050 nm with 49 nA of photocurrent sensitivity, a dynamic range of 91 dB and a bandwidth of 2-MHz. The signal conditioning circuitry of the system consumes only 40 mA of current from the ±5 V supplies making this configuration suitable for portable high speed, high resolution light intensity applications, such as pulse oximetry
Key Features
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Number of SuppliesSingle
Featured Parts (26)
| Part Number | Manufacturer | Type | Description | |||
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ADR441ARZ | Analog Devices | Voltage References | V-Ref Precision 2.5V 10mA 8-Pin SOIC N Tube | Buy | |
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ADR441ARMZ-REEL7 | Analog Devices | Voltage References | V-Ref Precision 2.5V 10mA 8-Pin MSOP T/R | Buy | |
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AD8065ARZ | Analog Devices | Operational Amplifiers - Op Amps | Op Amp Single High Performance Amplifier R-R O/P ±12V/24V 8-Pin SOIC N Tube | Buy | |
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AD8065ARTZ-R2 | Analog Devices | Operational Amplifiers - Op Amps | Op Amp Single High Performance Amplifier R-R O/P ±12V/24V 5-Pin SOT-23 T/R | Buy | |
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AD9629BCPZ-20 | Analog Devices | Analog to Digital Converters - ADCs | 1-Channel Single ADC Pipelined 20Msps 12-bit Parallel 32-Pin LFCSP EP Tray | Buy | |
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ADR441ARMZ | Analog Devices | Voltage References | V-Ref Precision 2.5V 10mA 8-Pin MSOP Tube | Buy | |
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AD8065ARTZ-REEL | Analog Devices | Operational Amplifiers - Op Amps | Op Amp Single High Performance Amplifier R-R O/P ±12V/24V 5-Pin SOT-23 T/R | Buy | |
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AD8065ARTZ-REEL7 | Analog Devices | Operational Amplifiers - Op Amps | Op Amp Single High Performance Amplifier R-R O/P ±12V/24V 5-Pin SOT-23 T/R | Buy | |
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AD8065ARZ-REEL7 | Analog Devices | Operational Amplifiers - Op Amps | Op Amp Single High Performance Amplifier R-R O/P ±12V/24V 8-Pin SOIC N T/R | Buy | |
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ADR441ARZ-REEL7 | Analog Devices | Voltage References | V-Ref Precision 2.5V 10mA 8-Pin SOIC N T/R | Buy | |
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ADR441TRZ-EP | Analog Devices | Voltage References | V-Ref Precision 2.5V 10mA 8-Pin SOIC N Tube | Buy | |
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AD8065ARZ-REEL | Analog Devices | Operational Amplifiers - Op Amps | Op Amp Single High Performance Amplifier R-R O/P ±12V/24V 8-Pin SOIC N T/R | Buy | |