The ADA4099 series of precision operational amplifiers from Analog Devices are a range of high-performance op amps designed to meet the demands of modern precision applications. These operational amplifiers (op amps) offer exceptional accuracy, low noise, and high-speed performance, making them ideal for a wide range of precision applications, including instrumentation, data acquisition, and control systems.
The ADA4099 series offers a broad range of specifications to meet the needs of various applications. The op amps have a wide supply voltage range and can operate on single or split supplies that range from 3.15V to 50V, which makes them compatible with a range of voltage levels used in industrial applications. The ADA4099 series feature low offset voltage of <±40 µV maximum, low input bias current (IB) of <±10 nA maximum, and low voltage noise, which ensures accurate signal processing. In addition, they have low input capacitance, 9pF in Differential mode and 3pF in Common mode, which minimizes the loading effect on the signal source. Furthermore, these op amps have a high output drive capability, which makes them suitable for driving heavy loads.
The ADA4099 series are available in two variants, the ADA4099-1 and ADA4099-2 which are single and dual channel respectively, these robust, precision, rail-to-rail input/output op amps have inputs that operate from −VS to +VS and beyond, which is referred to as Over-The-Top™. The ADA4099 series draw just 1.5 mA of quiescent current per channel making them suitable for low power battery operated applications. The op amps are also available with low power shutdown to reduce energy consumption even further.
The ADA4099 series Over-The-Top input stages have robust input protection features for harsh environments, the inputs are able to tolerate up to 80 V of differential voltage without damage or degradation to dc accuracy. The operating input common-mode range extends from rail-to-rail and beyond, up to 70 V > –VS, independent of the +VS supply.
The ADA4099 series are unity-gain stable and can drive loads requiring up to 20 mA per channel, they are also cable of driving capacitive loads as large as 100 pF.
The ADA4099-1 is available in a standard, 6-lead, thin small outline transistor (TSOT) package and the ADA4099-2 is available in an option of 8- lead, standard small outline package (SOIC_N), 8-lead, mini small outline package (MSOP), and a 10-lead, lead frame chip scale package (LFCSP). Both devices are available with an operating temperature range of -40°C to +125°C for B grade versions and -55°C to +150°C for H grade versions.
The ADA4099 series are supported by evaluation kits, EVAL-ADA4099-1HUJZ and EVAL-ADA4099-2EBZ respectively. Both are prepopulated boards using a gain of 1 configuration.
The evaluation boards allow simplified and efficient use, both have edge mounted Subminiature Version A (SMA) connectors on the inputs and outputs to allow efficient connection to test equipment or other circuits. Bulk test points are also incorporated as an alternative option to be used for the inputs and outputs. The boards have optimized ground plane, component placement, and power supply allowing for maximum circuit flexibility and performance. Both evaluation boards combine surface-mount technology (SMT) with almost all components being 0805 or 0603 size to provide simplified installation and the option to replace and solder when needed. The boards also have spare unpopulated resistor and capacitor pads, which provide the user with the options and flexibility to implement different application circuits and configurations.
The ADA4099 series of precision op amps from Analog Devices provides high performance and accuracy for precision applications. With their low noise, low offset voltage, and low input bias current, they are a reliable choice for precision instrumentation and control applications including Industrial sensor conditioning, Supply current sensing, Battery and power supply monitoring, Front-end amplifiers in abusive environments and 4 mA to 20 mA transmitters.
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