For battery powered systems it can be useful to know something about the state of the battery in order to predict remaining battery life. With specific charge/discharge information, you could also manage battery consuming resources to maximize battery life. There are integrated circuits to help with either approach. For simple charge or discharge information, a […]
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Low-noise buck-boost charge pump regulates from 2.7 to 38 V
Analog Devices, Inc., which recently acquired Linear Technology Corporation, announces the LTC3246, a compact, low noise buck-boost charge pump with integrated watchdog timer capable of up to 500mA of output current. The LTC3246 uses multimode switched capacitor conversion to maintain regulation over a wide 2.7V to 38V input voltage range and produces a regulated 3.3V, 5V, […]
150-V synchronous step-down dc/dc controller eliminates external surge protection devices
Analog Devices, Inc., which recently acquired Linear Technology Corporation, announces the LTC7801, a high voltage nonisolated synchronous step-down switching regulator controller in compact 24-lead packages that drives an all N-channel MOSFET power stage. Its 4V to 140V (150V abs max) input voltage range is designed to operate from a high input voltage source or from […]
Synchronous step-down controller operates at up to 2.25 MHz
Analog Devices, Inc., which recently acquired Linear Technology Corporation, announces the LTC7800, a synchronous step-down DC/DC controller that operates at up to 2.25MHz for reduced circuit size and increased power density. Its low 45ns minimum on-time enables 24VIN to 3.3VOUT conversions while switching at a fixed 2MHz, avoiding critical noise-sensitive frequency bands including AM radio. […]
3 GHz to 20 GHz double balanced mixer performs as up- or downconverter
Analog Devices, Inc., which recently acquired Linear Technology Corporation, announces the LTC5553, a double balanced mixer providing best-in-class matched bandwidth capability from 3GHz to 20GHz. The mixer can be used either as an up- or downconverter. In addition, the LTC5553 delivers outstanding linearity of 23.9dBm IIP3 at 14GHz, and 21.5dBm at 17GHz. The device integrates […]
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DSPs expand internal memory and data memory for automotive audio applications
Analog Devices, Inc. today announced four fixed-point digital signal processors (DSPs) qualified for automotive applications. Designed to fit the emerging demands of new and improved audio algorithms, the ADAU1466 and ADAU1467 SigmaDSP processors offer market-leading performance in fixed point DSP processors with three times the internal program memory and two times the internal data memory of […]
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IEEE 802.3bt PD controller offers 99 percent efficiency
Analog Devices, Inc., which recently acquired Linear Technology Corporation, announces the LT4294 IEEE 802.3bt Powered Device (PD) interface controller for applications requiring up to 71W of delivered power. This new Power over Ethernet (PoE) standard – IEEE 802.3bt – increases the power budget to enable new applications and features, while supporting 10 Gigabit Ethernet (10GBASE-T) […]
Diff amp delivers 15 dB gain to 1.4 GHz
Analog Devices, Inc. announces the LTC6432-15, a wideband fully differential amplifier with 15dB gain, offering linearity of up to +50.3dBm OIP3 (output third-order intercept), very high OP1dB (output 1dB compression point) of +22.7dBm, and 3.2dB noise figure at 150MHz. In addition to its outstanding signal-to-noise at high frequencies, it maintains its dynamic range performance even […]
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Synchronous step-down silent switcher delivers 94% efficiency at 2MHz
Analog Devices, Inc. announces the LT8645S, an 8A, 65V input capable synchronous step-down switching regulator. Its unique Silent Switcher® 2 architecture uses two internal input capacitors as well as internal BST and INTVCC capacitors to minimize the area of the hot loops. Combined with very well controlled switching edges and internal construction with an integral […]
Wide input range, no RSENSE current mode boost, flyback & SEPIC controller operates up to 175°C
Analog Devices, Inc., which recently acquired Linear Technology Corporation, announces the LTC1871X, a wide input range, current mode, boost, flyback or SEPIC controller that drives an N-channel power MOSFET and requires few external components. Intended for low to medium power applications, it eliminates the need for a current sense resistor by utilizing the power MOSFET’s […]