ADN8810 - Analog Devices

ADN8810 12-Bit High Output Current Source

The ADN8810 is a 12-bit current source with an adjustable full-scale output current of up to 300 mA. The full-scale output current is set with two external sense resistors. The output compliance voltage is 2.5 V, even at output currents up to 300 mA. The device is particularly suited for tunable laser control and can drive tunable laser front mirror, back mi.

Features

High precision 12-bit current source Low noise Long term stability Current output from 0 mA to 300 mA Output fault indication Low drift Programmable maximum current 24-lead 4 mm × 4 mm leadframe chip scale package 3-wire serial interface FUNCTIONAL BLOCK DIAGRAM 5V 5V 3.3V ENCOMP RESET 4.096V RESET VREF CS SERIAL INTERFACE SCLK SDI ADDRESS 3 ADDR0-2 FAULT DVDD AVDD PVDD FB RSN 1.6V IOUT RSN 1.6V RSN D1 ADN8810 SB AVSS DVSS DGND 03195-0-001 APPLICATIONS Tunable laser current source Programmable high output current source Automatic test equipment SB FAULT INDICATION Figure 1. GENERAL.