MAX844ISA Maxim Integrated Products, MAX844ISA Datasheet
MAX844ISA
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... Shutdown Mode (MAX844) 1µA Max Logic-Level Shutdown Over Temp. (MAX840/MAX843) Small 8-Pin SO Package ______________Ordering Information PART MAX840C/D MAX840ISA MAX840ESA MAX843C/D MAX843ISA MAX843ESA MAX844C/D MAX844ISA MAX844ESA * Dice are specified at T __________________Pin Configuration 0.22 F TOP VIEW V = -2.0V OUT (V of GaAsFET) GG 4.7 F NEGOUT ...
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Low-Noise, Regulated, -2V GaAsFET Bias ABSOLUTE MAXIMUM RATINGS Supply Voltage GND ..................................-0.3V to 10. GND ...................................................-10.5V to 0.3V NEGOUT .........................................................-0.3V to 21V IN NEGOUT V to GND (Note 1).......................................V OUT V to ...
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Low-Noise, Regulated, -2V GaAsFET Bias __________________________________________Typical Operating Characteristics (Circuit of Figure 2a 3.6V +25°C, unless otherwise noted OUTPUT VOLTAGE vs. OUTPUT CURRENT -2.070 -2.060 -2.050 -2.040 OUTPUT ...
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Low-Noise, Regulated, -2V GaAsFET Bias ____________________________Typical Operating Characteristics (continued) (Circuit of Figure 2a 3.6V +25°C, unless otherwise noted OSCILLATOR FREQUENCY vs. SUPPLY VOLTAGE 150 140 T = +25°C, +85°C 130 A 120 T = ...
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Low-Noise, Regulated, -2V GaAsFET Bias ____________________________Typical Operating Characteristics (continued) (Circuit of Figure 2a 3.6V +25°C, unless otherwise noted OUT -10 0 OUT ...
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Low-Noise, Regulated, -2V GaAsFET Bias ____________________________Typical Operating Characteristics (continued) (Circuit of Figure 2a 3.6V +25°C, unless otherwise noted 3.6V 4mA OUT 0.1 V ...
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... SHDN 5 — FB — 5 CONT 6 6 OUT 7 7 GND Dual Mode is a trademark of Maxim Integrated Products. C1+ CHARGE PUMP C1- MAX840 NEGOUT N SHDN -0.5V REF GND Figure 1a. MAX840 Block Diagram _______________________________________________________________________________________ FUNCTION Positive Terminal for C1 Negative Terminal for C1 Negative Output Voltage (unregulated) Active-Low, TTL Logic-Level Shutdown Input Dual Mode™ ...
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Low-Noise, Regulated, -2V GaAsFET Bias _______________Detailed Description The MAX840/MAX843/MAX844 are low-noise, inverting, regulated charge-pump power supplies designed for biasing GaAsFET devices, such as power-amplifier modules in cellular handsets. The applied input voltage ( first inverted to a neg- ...
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Low-Noise, Regulated, -2V GaAsFET Bias C1 MAX840 C1- OUT 3 NEGOUT SHDN ON/OFF GND 7 Figure 2a. MAX840 Standard Application Circuit C1+ ...
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Low-Noise, Regulated, -2V GaAsFET Bias ___________________Chip Topography C1+ C1- NEGOUT NEGOUT SHDN FB (CONT) 0.085" (2.159mm ARE FOR MAX843/MAX844 TRANSISTOR COUNT: 148 SUBSTRATE CONNECTED ______________________________________________________________________________________ IN GND GND 0.145" (3.683mm) OUT ...