Overview
The ADM8660ANZ, produced by Analog Devices Inc., is a CMOS switched-capacitor voltage converter designed for efficient voltage inversion and low power operation. This device is part of the ADM8660 series and is particularly notable for its low power shutdown feature, which allows the device to be disabled and reduce quiescent current to 300 nA. It is ideal for generating a negative rail in single power supply systems, making it a versatile component for various electronic applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Input Voltage, V+ | 1.5 | - | 7.0 | V | Inverting Mode, LV = Open |
| Supply Current (No Load) | - | 0.6 | 1 | mA | FC = Open (ADM660), GND (ADM8660) |
| Output Current | - | - | 100 | mA | - |
| Output Resistance | - | 9 | 15 | Ω | IL = 100 mA, TA = 25°C |
| Charge-Pump Frequency | - | 25 kHz / 120 kHz | - | - | FC = Open (ADM660), GND (ADM8660) |
| Max Operating Temperature | - | - | 85 | °C | - |
| Package Options | - | - | - | - | 8-Lead DIP, Narrow-Body SOIC |
Key Features
- Low power shutdown (SD) pin to disable the device and reduce quiescent current to 300 nA.
- CMOS switched-capacitor voltage converter capable of inverting the input supply voltage (VOUT = –VIN).
- Input voltages ranging from +1.5 V to +7 V can be inverted into a negative –1.5 V to –7 V output supply.
- Selectable charge-pump frequency (25 kHz or 120 kHz).
- High efficiency, achieving up to 90% efficiency at 50 mA and greater than 80% efficiency at 100 mA.
- Pin compatible upgrade for MAX660, MAX665, ICL7660, and LTC1046.
Applications
- Handheld instruments
- Portable computers
- Remote data acquisition
- Op Amp power supplies
Q & A
- What is the primary function of the ADM8660ANZ? The primary function of the ADM8660ANZ is to invert the input supply voltage, generating a negative output voltage from a positive input voltage.
- What are the input voltage ranges for the ADM8660ANZ? The input voltage ranges from +1.5 V to +7 V.
- What is the maximum output current of the ADM8660ANZ? The maximum output current is 100 mA.
- How does the shutdown feature work on the ADM8660ANZ? The shutdown feature disables the device and reduces the quiescent current to 300 nA.
- What are the available package options for the ADM8660ANZ? The device is available in 8-Lead DIP and narrow-body SOIC packages.
- What are the typical charge-pump frequencies for the ADM8660ANZ? The charge-pump frequencies are 25 kHz and 120 kHz.
- What is the maximum operating temperature for the ADM8660ANZ? The maximum operating temperature is 85°C.
- Is the ADM8660ANZ pin compatible with other devices? Yes, it is pin compatible with MAX660, MAX665, ICL7660, and LTC1046.
- What are some common applications of the ADM8660ANZ? Common applications include handheld instruments, portable computers, remote data acquisition, and Op Amp power supplies.
- How efficient is the ADM8660ANZ at different load currents? The device achieves greater than 90% efficiency at 50 mA and greater than 80% efficiency at 100 mA.
