FEATURES
–28 V, −200 mA, Low Noise, Linear Regulator ADP7182 TYPICAL APPLICATION CIRCUITS CIN 2.2µF GND VIN = –8V ON OFF –2V ON 2V 0V OFF –2V ON 0V EN ADJ APPLICATIONS
Regulation to noise sensitive applications Analog-to-digital converter (ADC) and digital-to-analog converter (DAC) circuits, precision amplifiers Communications and infrastructure Medical and healthcare Industrial and instrumentation Figure 2. ADP7182 with Adjustable Output Voltage, VOUT = −5 V GENERAL DESCRIPTION
Using an advanced proprietary architecture, it provides high power supply rejection and low noise, and achieves excellent line and load transient response with a small 2.2 µF ceramic output capacitor. The ADP7182 is available in a fixed output voltage and an adjustable version that allows the output voltage to range from −1.22 V to −VIN + VDO via an external feedback divider. The ADP7182 regulator output noise is 18 µV rms independent of the output voltage. The enable logic is capable of interfacing with positive or negative logic levels for maximum flexibility.