Optical controller with four-channel current and voltage-output DACs and multichannel ADC | YBH | 36 | -40 to 105

The AMC60704 is

a highly integrated, low-power analog monitor and controller optimized for

electro-absorption modulated laser (EML) applications.

The AMC60704

includes four 12-bit current output digital-to-analog converters (IDACs) and four 12-bit

voltage output DACs (VDACs) with programmable output ranges. The device also includes a

12-bit, 1-MSPS analog-to-digital converter (ADC) used for external and internal signal

monitoring, supply and temperature alarm monitors, and a high-precision internal

reference.

The AMC60704

VDACs support both positive and negative output-range operation and are capable or sourcing

and sinking up to 50 mA, making them an excellent choice for biasing optical modulators.

Additionally, the AMC60704 IDACs support a full-scale output

range of 200 mA with very-low power dissipation. The IDACs eliminate the need for external

components to bias laser diodes. In combination, the AMC60704

four VDACs and four IDACs enable accurate biasing of up to four EMLs.

The AMC60704

also includes four input pins that are multiplexed to the ADC and incorporate a low-latency

window comparator. These features make this device an excellent choice for received signal

strength indicator (RSSI) and loss-of-signal (LOS) detection. The ADC is also capable of

measuring the voltage at the IDAC pins, as well as the current being sourced or sinked by

the VDACs, thus enabling these outputs to be monitored.

The AMC60704

low power, high integration, very small size, and wide operating temperature range make this

device an excellent choice as an all-in-one control circuit for optical modules.