ADL5317 Avalanche Photodiode Bias Controller and Wide-range (5 nA - 5 mA) Current Monitor
The ADL5317 is a high-voltage, wide dynamic range biasing and current monitoring device optimized for use with avalanche photodiodes. With the provision of a stable high-voltage supply up to 80 V, the bias voltage at the VAPD pin can be varied from 6 V to 75 V using the 3 V compatible VSET pin. The current sourced from the VAPD pin, over a range of 5 nA to 5 mA, is accurately mirrored with an attenuation of 5 and sourced from the IPDM monitor output. In a typical application, the monitor output drives a current-input logarithmic amplifier to produce an output representing the optical power incident upon the photodiode. The photodiode anode may be connected to a high-speed transimpedance amplifier for the extraction of the data stream.
The ADL5317 is built for exceptional performance and low noise design for all APD modules and systems in next generation optical networks.
Features and Benefits- Accurately sets avalanche photodiode bias voltage
Wide bias range from 6 V to 75 V set using 3 V compatible control interface - Monitors photodiode current (5:1 ratio) over 6 decades
Linearity 0.5% from 10 nA to 1 mA, 1% from 5 nA to 5 mA
- Over-current protection and over-temperature shutdown
- Allows using a fixed high-voltage switcher, reducing supply decoupling and low-pass filtering requirements, thereby leading to low noise transceiver design
- Miniature 16-lead chip scale package (LFCSP 3mm x 3mm)
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Data Sheets
Order Information
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|
| ADL5317ACPZ-REEL7 Production | 16 ld LFCSP (3x3mm, 1.50mm exposed pad) | REEL 1500 | -40 to 85C | 0 | 4.15 | Y |
| ADL5317ACPZ-WP Last Time Buy | 16 ld LFCSP (3x3mm, 1.50mm exposed pad) | REEL 50 | -40 to 85C | 4.43 | 4.15 | Y |
Evaluation Boards
| Part Number | Description | Price | RoHS |
|---|
| ADL5317-EVAL | Evaluation Board | 100.19 | N |
Reference Materials
