NJU7664 Datasheet, PDF (1/4 Pages) New Japan Radio – VOLTAGE CONVERTER FOR GaAs FET

NJU7664
VOLTAGE CONVERTER
FOR GaAs FET
PRELIMINARY
■ GENERAL DESCRIPTION
The NJU7664 is a voltage converter for GaAs FET, which
contains CR oscillation circuit and dual operational amplifiers.
The voltage converter is a circuit operated by the charge pumping
system, and it generates the negative voltage from the positive
power supply. Furthermore the charge pumping capacitor is
incorporated.
Both of two operational amplifiers with the gain resistance which is
set up at -OdB output the negative voltage by the inverted input
voltage.
The NJU7664 realizes to operate the GaAs FET requiring the
negative gate biassing.
■ PACKAGE OUTLINE
NJU7664R
■ FEATURES
• Voltage Converter Operated With The Charge Pumping System
• Charge Pump Capacitor Incorporated
• CR Oscillation Circuit Incorporated
• Wide Operating Voltage
• Output Voltage
V_DD = 2.7V to 5.2V
0 to -4.0V (V_DD = 5.2V)
• Low Operating Current
• Stand-by Function
1.25mA MAX(V_DD = 2.7V)
• C-MOS Technology
• Package Outline
VSP-8
■ PIN CONFIGURATION
■ BLOCK DIAGRAM
Ver.2003-07-18
-1-