UCC391 Datasheet, PDF (1/3 Pages) Texas Instruments – 5-Bit Programmable Output BiCMOS Precision Voltage Reference

UCC391
ADVANCE INFORMATION
5-Bit Programmable Output BiCMOS Precision Voltage Reference
FEATURES
• 5 - Bit Digital-to-Analog Converter
(DAC) supports Intel Pentium II
Microprocessor VID Codes
• Compatible with 5V Systems
• 1% Output Voltage Accuracy
Guaranteed
DESCRIPTION
The UCC391 provides an accurate reference, programmable by a 5-bit
DAC, in a tiny 8 pin package. Using few external components, the UCC391
converts 5V to an adjustable output ranging from 3.5VDC to 2.1VDC in
100mV steps and 2.05VDC to 1.3VDC in 50mV steps with 1% DC system
accuracy.
This device is available in and 8 pin surface mount (150mm SOIC) and
TSSOP packages and is specified for operation from 0°C to 70°C.
BLOCK DIAGRAM
D4 7
D3 8
D2 1
D1 2
D0 3
DAC
SLUS437 - NOVEMBER 1998
VREF
4 VCC
5 COMMAND
6 GND
UDG-98200