ADL5315 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

ADL5315
Manufacturer

ADI
ChipWorker Part#

CW430791874
Description

Precision Wide-range (3nA - 3mA) High-Side Current Mirror
Documentation

Datasheet

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ADL5315 Specifications

Attribute	Attribute Value

Part Number	ADL5315
Manufacturer	ADI
ChipWorker Part#	CW430791874
Documentation	Datasheet
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Product Lifecycle Status	Active

Product Description

Product Details
The ADL5315 is a wide input current range precision high-side current mirror featuring a stable and user-adjustable input voltage. It is optimized for use with PIN photodiodes, but its flexibility and wide operating range make it suitable for a broad array of additional applications. The part provides a compact solution for the common and often challenging problem of interfacing an optical power monitoring device (such as a log amp) to the cathode-side of a PIN photodiode. The ADL5315 mirrors the current at the cathode at a 1:1 ratio over a six-decade range, producing an output exactly proportional to the reference current monitored. Competing optical current monitors have much higher mirror ratios over narrower dynamic ranges, rendering proportional outputs at very low input currents impossible, while discrete solutions are more tedious to implement and may require significantly more board space.
### Features and Benefits
Accurately mirrors input current (1:1 ratio) over 6 decades - enables monitoring at low signal levels
Linearity 1% from 3 nA to 3 mA
Stable mirror input voltage
Voltage held 1 V below supply using internal reference or may be set externally providing greater flexibility in design
Adjustable input current limit provides protection to the connected photodiode
2.7 V to 8 V single-supply operation
Miniature 8-lead chip scale package (LFCSP 2 mm x 3 mm) saves valuable board space

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