TIDUAH1A August   2015  – April 2018

 

  1.   Revision History

Generation of Bipolar ±15-V DC Supply

The dc analog output can be a voltage output up to ±12 V or current output up to ±24 mA and needs a ±15 V supply for generation of these outputs. There are multiple approaches to generation of the required dual power supply.

Table 5. DC-DC Converter and LDO Selection

DEVICE DESCRIPTION
LM5017 7.5-V–100-V wide-Vin, 600-mA constant on-time synchronous buck regulator
LM5160 LM5160 wide-input, 65-V, 2-A synchronous buck / Fly-Buck™ converter
TPS65130 Split-rail converter with dual, positive and negative outputs (300 mA typ)
TPS7A39 Dual, 150-mA, wide-Vin, positive and negative low-dropout (LDO) voltage regulator

See the following designs for more details.