RHRDAC1612 datasheet(28/47 Pages) STMICROELECTRONICS

Part #	RHRDAC1612

Description	Rad-hard high resolution DAC

PDF	47 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

Logo

28 / 47 page

DAC operation

RHRDAC1612

28/47

DocID029369 Rev 2

4.17

VREFOUT output

This pin is used to provide a power supply through AVCC to the external reference

connected to VREFIN (see Figure 14: "Internal switches for boost sequence"). This output

is directly driven by the PDN pin and when the RHRDAC1612 is set in standby, VREFOUT

is disconnected from AVCC thereby putting the reference voltage in standby. The internal

switch can handle up to 12 mA allowing connection to a wide range of external references.

Table 10: VREFOUT behavior vs. PDN and ARSTN

PDN

ARSTN

VREFOUT

HiZ

AVCC

4.18

TESTA and TESTD pins

TESTA and TESTD pins are used for making industrial tests on the ATE. These pins are

not used in normal operation. TESTA must be left floating and TESTD must be

connected to DGND.

RHRDAC1612 Datasheet(PDF) 28 Page - STMicroelectronics